Abstract
Background
Starting in 2018, national death certificates included a new racial classification system that accounts for multiple-race decedents and separates Native Hawaiian and Pacific Islander (NHPI) individuals from Asian individuals. We estimated cancer death rates across updated racial and ethnic categories, sex, and age.
Methods
Age-standardized US cancer mortality rates and rate ratios from 2018 to 2020 among individuals aged 20 years and older were estimated with national death certificate data by race and ethnicity, sex, age, and cancer site.
Results
In 2018, there were approximately 597 000 cancer deaths, 598 000 in 2019, and 601 000 in 2020. Among men, cancer death rates were highest in Black men (298.2 per 100 000; n = 105 632), followed by White (250.8; n = 736 319), American Indian/Alaska Native (AI/AN; 249.2; n = 3376), NHPI (205.6; n = 1080), Latino (177.2; n = 66 167), and Asian (147.9; n = 26 591) men. Among women, Black women had the highest cancer death rates (206.5 per 100 000; n = 104 437), followed by NHPI (192.1; n = 1141), AI/AN (189.9; n = 3239), White (183.0; n = 646 865), Latina (128.4; n = 61 579), and Asian (111.4; n = 26 396) women. The highest death rates by age group occurred among NHPI individuals aged 20-49 years and Black individuals aged 50-69 and 70 years and older. Asian individuals had the lowest cancer death rates across age groups. Compared with Asian individuals, total cancer death rates were 39% higher in NHPI men and 73% higher in NHPI women.
Conclusions
There were striking racial and ethnic disparities in cancer death rates during 2018-2020. Separating NHPI and Asian individuals revealed large differences in cancer mortality between 2 groups that were previously combined in vital statistics data.
In the United States, cancer is the second most common cause of death, accounting for approximately 602 400 deaths in 2020 (1). There are notable racial and ethnic disparities in cancer death rates, driven by differences in cancer incidence and survival, barriers to accessing health care, and other structural factors (2-4). During 2013-2017, cancer incidence rates were highest in White and Black individuals compared with Asian and Pacific Islanders (aggregated group), American Indian/Alaska Native (AI/AN), and Hispanic and Latino individuals (5). Additionally, Black and AI/AN cancer patients had lower 5-year cancer survival rates across most cancers compared with White cancer patients, highlighting racial and ethnic disparities in cancer outcomes (6). As a result, the highest cancer death rates were observed among Black individuals in the United States in 2019 (7). Although reports examine cancer mortality rates in the United States annually, more detailed analyses are needed to capture disparities by cancer site across and within racial and ethnic groups, sex, and age (2,8).
In 1997, the Office of Management and Budget updated federal race classifications to include Native Hawaiian and Pacific Islander (NHPI) individuals as a distinct racial group separate from Asian individuals and a separate category for “more than one race” (9). However, the National Center for Health Statistics (NCHS) did not transition to releasing single race mortality data until 2018 when all states had implemented the new classification on death certificates (10,11). NHPI individuals represent about 0.4% of the US population and have known health disparities that have been masked through the aggregation of their data with the larger Asian population (12-15). We provide a systematic assessment of cancer deaths across racial and ethnic groups using this updated classification system to provide an update on disparities in cancer death rates in the United States and to establish a baseline for future analyses examining trends over time.
Methods
All cancer deaths among those aged 20 years and older in the United States (excluding Puerto Rico or any of the US territories) during 2018-2020 were obtained from the NCHS death certificate data (11). Underlying causes of death were classified based on the International Classification of Disease 10th revision codes. The 2018-2020 population counts were ascertained from the US Census Bureau and grouped by year, self-identified racial and ethnic group, sex, and age group (20-49, 50-69, 70 years and older) (11). Race on death certificates is recorded by a funeral director with information provided by an informant, usually the closest living relative, or based on observation (11). The following mutually exclusive racial and ethnicity categories were used: Hispanic and Latino all races (ie, Latino/a), non-Hispanic AI/AN, non-Hispanic Asian, non-Hispanic Black or African American (ie, Black), non-Hispanic NHPI, non-Hispanic White, and non-Hispanic more than one race (ie, multiracial). Mortality rates for those who identified as multiracial were notably lower than all other groups and thus not presented, as these lower rates are likely due to an under ascertainment of this category on death certificates (16-18). When analyzing the AI/AN population, we restricted to Purchased/Referred Care Delivery Areas counties, where sensitivity of capturing AI/AN race was known to be higher (19,20).
Statistical analyses
Overall, age-specific, and cancer-specific age-standardized death rates and mortality rate ratios (RRs) were compared across racial and ethnic groups. White individuals served as the reference group for rate ratios, as they were the largest racial and ethnic group in the United States. Estimates were further stratified by sex and age group. Cancer rates in NHPI and Asian individuals were also directly compared, as these groups are often aggregated in cancer mortality data. All data analyses were conducted in SEER*stat software version 8.4.0 (21). We considered associations with a P value of less than .05 as statistically significant. Rates based on fewer than 10 deaths were suppressed. All statistical tests were 2-sided.
Results
In 2018, there were approximately 597 000 cancer deaths, 598 000 in 2019, and 601 000 in 2020 among those aged 20 years and older. Though number of cancer deaths increased each year, the rates declined after age standardization from 208.4 to 200.8 per 100 000 person-years.
Cancer mortality in the overall study population
Among men, cancer death rates were highest in Black men (298.2 per 100 000; n = 105 632), followed by White (250.8; n = 736 319), AI/AN (249.2; n = 3376), NHPI (205.6; n = 1080), Latino (177.2; n = 66 167), and Asian (147.9; n = 26 591) men (Table 1, Figure 1). Among women, cancer death rates were highest in Black women (206.5 per 100 000; n = 104 437), followed by NHPI (192.1; n = 1141), AI/AN (189.9; n = 3239), White (183.0; n = 646 865), Latina (128.4; n = 61 579), and Asian (111.4; n = 26 396) women (Table 1, Figure 1). NHPI individuals had the highest cancer death rates among those aged 20-49 years (43.7 per 100 000), whereas Black individuals had the highest cancer death rates among those aged 50-69 and 70 years and older (327.8 and 1070.8 per 100 000, respectively). Asian individuals had the lowest cancer death rates across every age group (15.9, 146.7, and 613.0 per 100 000, respectively). When combined, cancer death rates among Asian and NHPI populations largely reflect cancer death rates in Asian individuals and are not representative of NHPI individuals (Supplementary Table 1, available online).
Table 1.
Cancer type | Overall | Men | Rate ratio (95% CI)a | Women | Rate ratio (95% CI)b | 20-49 years | 50-69 years | ≥70 years |
---|---|---|---|---|---|---|---|---|
American Indian/Alaska Native individuals | ||||||||
All cancers | 214.9 | 249.2 | 0.99 (0.96 to 1.03) | 189.9 | 1.04 (1.00 to 1.08)c | 28.7 | 279.6 | 968.6 |
Oral cavity and pharynx | 2.9 | 4.3 | 0.75 (0.57 to 0.97)c | 1.7 | 0.79 (0.53 to 1.15) | — | 5.6 | 8.4 |
Esophagus | 5.1 | 8.1 | 0.77 (0.62 to 0.93)c | 2.6 | 1.26 (0.92 to 1.69) | — | 8.1 | 20.9 |
Stomach | 7.8 | 10.7 | 2.68 (2.23 to 3.19)c | 5.6 | 2.78 (2.23 to 3.42)c | 2.1 | 9.8 | 30.8 |
Colorectum | 23.5 | 27.9 | 1.30 (1.17 to 1.45)c | 19.8 | 1.30 (1.16 to 1.46)c | 4.9 | 30.7 | 97.0 |
Liver | 17.6 | 24.8 | 2.10 (1.88 to 2.34)c | 12.0 | 2.33 (2.02 to 2.68)c | 1.0 | 32.2 | 67.3 |
Pancreas | 14.4 | 16.1 | 0.88 (0.76 to 1.01) | 12.9 | 0.95 (0.83 to 1.09) | 1.4 | 20.4 | 63.7 |
Lung | 45.2 | 50.1 | 0.84 (0.77 to 0.91)c | 41.5 | 0.94 (0.87 to 1.01) | 1.9 | 57.9 | 225.6 |
Soft tissue including heart | 1.4 | 1.6 | 0.77 (0.47 to 1.19) | 1.3 | 0.87 (0.53 to 1.34) | 0.6 | 1.8 | 4.8 |
Breast | 24.8 | — | — | 24.8 | 0.91 (0.82 to 1.00) | 6.9 | 31.3 | 97.1 |
Cervix | 4.1 | — | — | 4.1 | 1.43 (1.10 to 1.82)c | 2.8 | 7.3 | — |
Uterus | 6.5 | — | — | 6.5 | 1.00 (0.82 to 1.21) | 1.3 | 9.7 | 25.2 |
Ovary | 8.3 | — | — | 8.3 | 0.92 (0.77 to 1.09) | 2.1 | 10.6 | 33.2 |
Prostate | 25.4 | 25.4 | 1.02 (0.90 to 1.16) | — | — | — | 14.8 | 164.3 |
Bladder | 3.3 | 4.7 | 0.43 (0.32 to 0.57)c | 2.2 | 0.74 (0.51 to 1.03) | — | 2.9 | 18.9 |
Kidney | 9.2 | 13.2 | 1.79 (1.52 to 2.08)c | 5.9 | 1.92 (1.55 to 2.35)c | 1.1 | 12.7 | 40.3 |
CNS | 3.5 | 3.8 | 0.45 (0.33 to 0.59)c | 3.2 | 0.59 (0.44 to 0.77)c | 1.4 | 5.0 | 10.2 |
Non-Hodgkin lymphoma | 6.4 | 8.6 | 0.88 (0.71 to 1.07) | 4.8 | 0.85 (0.67 to 1.07) | 0.7 | 7.3 | 31.8 |
Myeloma | 4.3 | 5.2 | 1.02 (0.78 to 1.30) | 3.6 | 1.18 (0.89 to 1.53) | — | 4.8 | 21.9 |
Leukemia | 6.3 | 8.1 | 0.70 (0.57 to 0.84)c | 4.8 | 0.76 (0.60 to 0.95)c | 1.5 | 5.7 | 30.4 |
Asian individuals | ||||||||
All cancers | 126.8 | 147.9 | 0.59 (0.58 to 0.60)c | 111.4 | 0.61 (0.60 to 0.62)c | 15.9 | 146.7 | 613.0 |
Oral cavity and pharynx | 2.8 | 4.3 | 0.74 (0.69 to 0.80)c | 1.6 | 0.75 (0.68 to 0.84)c | 0.6 | 4.3 | 10.3 |
Esophagus | 2.1 | 3.5 | 0.33 (0.31 to 0.36)c | 1.0 | 0.45 (0.39 to 0.52)c | 0.2 | 2.8 | 9.4 |
Stomach | 6.0 | 7.6 | 1.90 (1.79 to 2.01)c | 4.8 | 2.36 (2.21 to 2.51)c | 1.0 | 6.6 | 28.7 |
Colorectum | 12.5 | 15.0 | 0.70 (0.67 to 0.73)c | 10.5 | 0.69 (0.66 to 0.72)c | 2.1 | 15.3 | 55.9 |
Liver | 11.4 | 17.0 | 1.43 (1.38 to 1.49)c | 7.0 | 1.36 (1.29 to 1.44)c | 1.1 | 14.7 | 53.6 |
Pancreas | 10.5 | 11.4 | 0.62 (0.59 to 0.65)c | 9.7 | 0.71 (0.68 to 0.75)c | 0.7 | 11.0 | 55.6 |
Lung | 26.1 | 33.5 | 0.56 (0.55 to 0.58)c | 20.6 | 0.47 (0.45 to 0.48)c | 1.6 | 27.9 | 139.0 |
Soft tissue including heart | 1.2 | 1.4 | 0.66 (0.58 to 0.74)c | 1.1 | 0.73 (0.64 to 0.83)c | 0.5 | 1.5 | 4.2 |
Breast | 15.9 | — | — | 15.9 | 0.58 (0.56 to 0.60)c | 4.5 | 25.1 | 51.5 |
Cervix | 2.1 | — | — | 2.1 | 0.73 (0.67 to 0.80)c | 0.8 | 3.5 | 5.3 |
Uterus | 4.6 | — | — | 4.6 | 0.70 (0.66 to 0.75)c | 0.7 | 7.7 | 17.1 |
Ovary | 6.0 | — | — | 6.0 | 0.66 (0.63 to 0.70)c | 1.2 | 10.7 | 19.0 |
Prostate | 11.6 | 11.6 | 0.47 (0.44 to 0.49)c | — | — | — | 5.3 | 78.5 |
Bladder | 2.3 | 3.9 | 0.36 (0.33 to 0.38)c | 1.2 | 0.39 (0.34 to 0.44)c | 0.1 | 1.3 | 15.0 |
Kidney | 2.1 | 3.1 | 0.42 (0.39 to 0.46)c | 1.3 | 0.44 (0.39 to 0.49)c | 0.2 | 2.4 | 10.7 |
CNS | 3.0 | 3.9 | 0.46 (0.43 to 0.50)c | 2.3 | 0.43 (0.39 to 0.47)c | 1.0 | 4.4 | 10.3 |
Non-Hodgkin lymphoma | 4.9 | 6.4 | 0.66 (0.62 to 0.70)c | 3.7 | 0.67 (0.63 to 0.72)c | 0.4 | 4.7 | 26.7 |
Myeloma | 2.0 | 2.6 | 0.49 (0.45 to 0.54)c | 1.6 | 0.54 (0.48 to 0.60)c | 0.1 | 1.9 | 11.7 |
Leukemia | 4.4 | 5.9 | 0.50 (0.47 to 0.54)c | 3.3 | 0.52 (0.48 to 0.55)c | 0.7 | 4.1 | 22.3 |
Black individuals | ||||||||
All cancers | 241.5 | 298.2 | 1.19 (1.18 to 1.20)c | 206.5 | 1.13 (1.12 to 1.14)c | 30.2 | 327.8 | 1070.8 |
Oral cavity and pharynx | 3.5 | 6.0 | 1.04 (1.00 to 1.09) | 1.7 | 0.80 (0.74 to 0.86)c | 0.5 | 6.4 | 11.7 |
Esophagus | 4.0 | 6.5 | 0.61 (0.59 to 0.64)c | 2.1 | 1.02 (0.96 to 1.09) | 0.4 | 7.2 | 14.5 |
Stomach | 6.9 | 9.8 | 2.46 (2.36 to 2.56)c | 4.9 | 2.40 (2.28 to 2.51)c | 1.0 | 8.3 | 31.8 |
Colorectum | 24.1 | 30.8 | 1.44 (1.41 to 1.47)c | 19.4 | 1.28 (1.25 to 1.31)c | 4.1 | 33.3 | 100.5 |
Liver | 11.4 | 17.9 | 1.51 (1.47 to 1.55)c | 6.6 | 1.28 (1.23 to 1.33)c | 1.0 | 21.9 | 39.7 |
Pancreas | 19.3 | 21.8 | 1.19 (1.16 to 1.22)c | 17.4 | 1.28 (1.25 to 1.31)c | 1.5 | 27.3 | 87.7 |
Lung | 50.2 | 68.7 | 1.15 (1.13 to 1.17)c | 37.6 | 0.85 (0.84 to 0.86)c | 2.5 | 70.5 | 235.7 |
Soft tissue including heart | 2.1 | 2.1 | 1.02 (0.94 to 1.11) | 2.0 | 1.37 (1.28 to 1.47)c | 0.9 | 2.9 | 6.1 |
Breast | 38.7 | — | — | 38.7 | 1.41 (1.39 to 1.44)c | 12.1 | 58.7 | 125.3 |
Cervix | 4.7 | — | — | 4.7 | 1.64 (1.56 to 1.72)c | 2.4 | 7.0 | 10.8 |
Uterus | 13.1 | — | — | 13.1 | 2.00 (1.95 to 2.06)c | 1.1 | 21.7 | 52.4 |
Ovary | 8.0 | — | — | 8.0 | 0.88 (0.85 to 0.91)c | 1.1 | 12.9 | 30.5 |
Prostate | 52.6 | 52.6 | 2.12 (2.08 to 2.16)c | — | — | 0.5 | 38.2 | 328.6 |
Bladder | 4.7 | 7.3 | 0.66 (0.63 to 0.69)c | 3.1 | 1.02 (0.96 to 1.08) | 0.2 | 4.2 | 26.8 |
Kidney | 4.6 | 7.1 | 0.96 (0.92 to 1.00)c | 2.9 | 0.94 (0.89 to 0.99)c | 0.7 | 6.1 | 20.1 |
CNS | 3.8 | 4.7 | 0.55 (0.52 to 0.58)c | 3.1 | 0.57 (0.54 to 0.60)c | 1.2 | 5.6 | 12.4 |
Non-Hodgkin lymphoma | 5.3 | 7.0 | 0.72 (0.69 to 0.75)c | 4.1 | 0.74 (0.70 to 0.77)c | 1.1 | 6.4 | 23.4 |
Myeloma | 8.2 | 10.2 | 1.97 (1.89 to 2.05)c | 6.9 | 2.27 (2.18 to 2.36)c | 0.5 | 8.7 | 43.7 |
Leukemia | 7.1 | 9.3 | 0.80 (0.77 to 0.83)c | 5.7 | 0.89 (0.86 to 0.93)c | 1.5 | 7.6 | 33.1 |
Latino individuals | ||||||||
All cancers | 148.5 | 177.2 | 0.71 (0.70 to 0.71)c | 128.4 | 0.70 (0.70 to 0.71)c | 18.9 | 172.6 | 715.0 |
Oral cavity and pharynx | 2.0 | 3.2 | 0.56 (0.52 to 0.59)c | 1.1 | 0.52 (0.47 to 0.57)c | 0.3 | 2.8 | 9.1 |
Esophagus | 2.7 | 4.9 | 0.46 (0.44 to 0.48)c | 0.9 | 0.43 (0.39 to 0.48)c | 0.3 | 3.7 | 11.9 |
Stomach | 6.5 | 8.1 | 2.03 (1.95 to 2.12)c | 5.4 | 2.65 (2.53 to 2.77)c | 1.6 | 7.9 | 27.1 |
Colorectum | 14.8 | 18.7 | 0.87 (0.85 to 0.90)c | 11.7 | 0.77 (0.75 to 0.79)c | 2.4 | 18.5 | 66.5 |
Liver | 12.7 | 18.0 | 1.52 (1.48 to 1.56)c | 8.4 | 1.64 (1.58 to 1.70)c | 0.7 | 19.4 | 56.4 |
Pancreas | 12.4 | 13.6 | 0.74 (0.72 to 0.76)c | 11.3 | 0.84 (0.81 to 0.86)c | 0.8 | 15.0 | 62.2 |
Lung | 20.8 | 28.0 | 0.47 (0.46 to 0.48)c | 15.5 | 0.35 (0.34 to 0.36)c | 0.9 | 20.7 | 115.4 |
Soft tissue including heart | 1.5 | 1.6 | 0.77 (0.71 to 0.84)c | 1.4 | 0.92 (0.85 to 1.00)c | 0.6 | 2.0 | 4.4 |
Breast | 19.0 | — | — | 19.0 | 0.69 (0.68 to 0.71)c | 5.1 | 28.4 | 66.2 |
Cervix | 3.4 | — | — | 3.4 | 1.19 (1.12 to 1.25)c | 2.0 | 4.8 | 7.2 |
Uterus | 6.0 | — | — | 6.0 | 0.92 (0.88 to 0.96)c | 0.9 | 9.5 | 23.0 |
Ovary | 6.7 | — | — | 6.7 | 0.74 (0.71 to 0.76)c | 1.2 | 10.5 | 24.7 |
Prostate | 20.9 | 20.9 | 0.84 (0.82 to 0.87)c | — | — | 0.1 | 10.8 | 139.8 |
Bladder | 3.2 | 5.3 | 0.48 (0.46 to 0.51)c | 1.7 | 0.57 (0.53 to 0.61)c | 0.1 | 2.1 | 20.0 |
Kidney | 4.5 | 6.5 | 0.87 (0.84 to 0.91)c | 2.9 | 0.93 (0.87 to 0.98)c | 0.5 | 5.6 | 21.0 |
CNS | 4.1 | 4.8 | 0.57 (0.54 to 0.59)c | 3.6 | 0.66 (0.62 to 0.69)c | 1.1 | 5.7 | 15.4 |
Non-Hodgkin lymphoma | 6.1 | 7.8 | 0.81 (0.77 to 0.84)c | 4.8 | 0.86 (0.82 to 0.90)c | 0.6 | 5.7 | 33.0 |
Myeloma | 3.6 | 4.3 | 0.84 (0.79 to 0.89)c | 3.0 | 0.98 (0.92 to 1.04) | 0.2 | 3.7 | 19.4 |
Leukemia | 5.6 | 7.0 | 0.60 (0.58 to 0.63)c | 4.5 | 0.70 (0.67 to 0.74)c | 1.4 | 4.8 | 26.7 |
Native Hawaiian and Pacific Islander individuals | ||||||||
All cancers | 197.3 | 205.6 | 0.82 (0.77 to 0.87)c | 192.1 | 1.05 (0.99 to 1.11) | 43.7 | 288.4 | 743.1 |
Oral cavity and pharynx | 3.7 | 4.7 | 0.82 (0.55 to 1.18) | 2.8 | 1.32 (0.74 to 2.15) | 1.7 | 7.4 | — |
Esophagus | 2.8 | 4.5 | 0.42 (0.27 to 0.62)c | — | — | — | 4.9 | 9.6 |
Stomach | 8.7 | 11.2 | 2.81 (2.09 to 3.70)c | 6.7 | 3.32 (2.34 to 4.55)c | 2.3 | 10.4 | 35.8 |
Colorectum | 14.6 | 16.6 | 0.77 (0.62 to 0.95)c | 12.6 | 0.83 (0.65 to 1.04) | 5.4 | 24.4 | 38.7 |
Liver | 15.1 | 21.6 | 1.83 (1.51 to 2.20)c | 9.0 | 1.76 (1.30 to 2.32)c | 4.8 | 24.7 | 45.1 |
Pancreas | 12.2 | 11.8 | 0.64 (0.49 to 0.84)c | 12.5 | 0.92 (0.71 to 1.17) | 1.6 | 17.5 | 51.5 |
Lung | 38.5 | 47.5 | 0.80 (0.69 to 0.91)c | 30.7 | 0.69 (0.59 to 0.81)c | 3.2 | 53.5 | 175.8 |
Soft tissue including heart | 2.7 | 1.9 | 0.90 (0.46 to 1.61) | 3.3 | 2.23 (1.36 to 3.46)c | — | 5.4 | — |
Breast | 33.2 | — | — | 33.2 | 1.21 (1.05 to 1.39)c | 8.2 | 61.0 | 95.8 |
Cervix | 6.9 | — | — | 6.9 | 2.43 (1.75 to 3.30)c | 4.4 | 8.7 | 15.5 |
Uterus | 19.5 | — | — | 19.5 | 2.99 (2.47 to 3.58)c | 9.4 | 34.1 | 38.0 |
Ovary | 7.8 | — | — | 7.8 | 0.86 (0.63 to 1.16) | — | 13.3 | 22.0 |
Prostate | 23.0 | 23.0 | 0.92 (0.74 to 1.13) | — | — | — | 16.4 | 143.6 |
Bladder | 4.0 | 6.2 | 0.57 (0.36 to 0.84)c | 2.1 | 0.71 (0.36 to 1.26) | — | — | 24.0 |
Kidney | 3.7 | 5.5 | 0.74 (0.49 to 1.08) | 2.1 | 0.68 (0.35 to 1.18) | — | 5.9 | 13.9 |
CNS | 3.8 | 3.9 | 0.46 (0.27 to 0.72)c | 3.7 | 0.69 (0.43 to 1.04) | — | 5.3 | 12.5 |
Non-Hodgkin lymphoma | 6.8 | 7.2 | 0.74 (0.52 to 1.04) | 6.4 | 1.15 (0.79 to 1.61) | 1.5 | 7.9 | 29.8 |
Myeloma | 3.8 | 4.4 | 0.86 (0.52 to 1.32) | 3.4 | 1.12 (0.66 to 1.77) | — | 4.9 | 19.2 |
Leukemia | 7.9 | 9.5 | 0.81 (0.59 to 1.09) | 6.5 | 1.02 (0.71 to 1.42) | 2.3 | 8.8 | 32.4 |
White individuals | ||||||||
All cancers | 212.3 | 250.8 | — | 183.0 | — | 23.5 | 255.7 | 1020.3 |
Oral cavity and pharynx | 3.8 | 5.8 | — | 2.1 | — | 0.5 | 6.3 | 14.7 |
Esophagus | 6.0 | 10.6 | — | 2.1 | — | 0.6 | 9.4 | 25.0 |
Stomach | 2.9 | 4.0 | — | 2.0 | — | 0.5 | 3.6 | 12.9 |
Colorectum | 18.1 | 21.4 | — | 15.2 | — | 3.2 | 22.4 | 80.2 |
Liver | 8.2 | 11.8 | — | 5.1 | — | 0.6 | 13.2 | 34.3 |
Pancreas | 15.8 | 18.4 | — | 13.6 | — | 1.2 | 20.1 | 76.7 |
Lung | 51.1 | 59.7 | — | 44.3 | — | 2.4 | 66.6 | 251.3 |
Soft tissue including heart | 1.8 | 2.1 | — | 1.5 | — | 0.6 | 2.2 | 6.5 |
Breast | 27.4 | — | — | 27.4 | — | 6.5 | 37.2 | 106.7 |
Cervix | 2.9 | — | — | 2.9 | — | 1.9 | 4.2 | 4.6 |
Uterus | 6.5 | — | — | 6.5 | — | 0.7 | 9.4 | 28.4 |
Ovary | 9.0 | — | — | 9.0 | — | 1.4 | 12.9 | 37.4 |
Prostate | 24.8 | 24.8 | — | — | — | 0.2 | 12.8 | 165.8 |
Bladder | 6.4 | 10.9 | — | 3.0 | — | 0.2 | 4.6 | 39.2 |
Kidney | 5.1 | 7.4 | — | 3.1 | — | 0.5 | 6.3 | 24.2 |
CNS | 6.9 | 8.5 | — | 5.4 | — | 2.2 | 10.4 | 22.0 |
Non-Hodgkin lymphoma | 7.4 | 9.7 | — | 5.6 | — | 0.6 | 6.1 | 42.3 |
Myeloma | 4.0 | 5.2 | — | 3.1 | — | 0.2 | 3.6 | 22.8 |
Leukemia | 8.7 | 11.7 | — | 6.3 | — | 1.1 | 6.8 | 48.3 |
Rate ratios compare to White men. “—” signifies statistic not displayed because of fewer than 10 cases or not applicable. CI = confidence Interval; CNS = central nervous system.
Rate ratios compared to White women.
Denotes statistical significance (P < .05).
Cancer mortality in AI/AN individuals
During 2018-2020, lung cancer caused the largest number of cancer deaths among AI/AN men overall and among those aged 50-69 and 70 years and older, whereas colorectal cancer was the leading cause of cancer death among AI/AN men aged 20-49 years (Table 1;Supplementary Table 2, available online). Compared with all other racial and ethnic groups, AI/AN men had the highest death rates for liver and kidney cancers (Table 1). Compared with White men, AI/AN men had statistically significantly higher death rates due to cancers of the colorectum, kidney, liver, and stomach (RR = 1.30-2.68; all P <.05) and statistically significantly lower death rates for leukemia and cancers of the bladder, central nervous system (CNS), oral cavity and pharynx, esophagus, and lung (RR = 0.43-0.84; all P <.05).
Among AI/AN women, lung cancer caused the largest number of cancer deaths overall and among those aged 50-69 and 70 years and older, whereas breast cancer caused the largest number of cancer deaths among AI/AN women aged 20-49 years (Table 1;Supplementary Table 2, available online). Compared with all other racial and ethnic groups, AI/AN women had the highest death rates for esophageal, colorectal, liver, and kidney cancers (Table 1). Death rates among AI/AN women were statistically significantly higher than White women for cancer of the colorectum, cervix, kidney, liver, and stomach (RR = 1.30-2.78; all P <.05) and were statistically significantly lower for leukemia (RR = 0.76, 95% confidence interval [CI] = 0.60 to 0.95) and cancers of the CNS (RR = 0.59, 95% CI = 0.44 to 0.77).
Cancer mortality in Asian individuals
During 2018-2020, lung cancer caused the largest number of cancer deaths among Asian men overall and among those aged 50-69 and 70 years and older, and colorectal cancer was the leading cause of cancer death among Asian men aged 20-49 years (Table 1;Supplementary Table 2, available online). Compared with White men, Asian men had lower death rates for nearly all cancers (RR = 0.33-0.74; all P <.05), except for liver (RR = 1.43, 95% CI = 1.38 to 1.49) and stomach cancer (RR = 1.90, 95% CI = 1.79 to 2.01).
Among Asian women, lung cancer caused the largest number of cancer deaths overall and among those aged 70 years and older (Table 1;Supplementary Table 2, available online), and breast cancer caused the largest number of cancer deaths among Asian women aged 20-49 and 50-69 years. Cancer death rates among Asian women were statistically significantly lower than White women for most cancers (RR = 0.39-0.75; all P < .05), with the exception of statistically significantly higher death rates for liver (RR = 1.36, 95% CI = 1.29 to 1.44) and stomach cancers (RR = 2.36, 95% CI = 2.21 to 2.51).
Cancer mortality in Black individuals
During 2018-2020, lung cancer caused the largest number of cancer deaths among Black men overall and among those aged 50-69 and 70 years and older, whereas colorectal cancer was the leading cause of death among Black men aged 20-49 years (Table 1;Supplementary Table 2, available online).
Compared with all other racial and ethnic groups, Black men had the highest death rates for multiple myeloma and cancers of the colorectum, pancreas, lung, prostate, oral cavity and pharynx, and soft tissue including heart. Compared with White men, Black men had statistically significantly elevated death rates because of multiple myeloma and cancers of the lung, pancreas, colorectum, liver, prostate, and stomach (RR = 1.15- 2.46; all P <.05) and statistically significantly lower death rates for leukemia, non-Hodgkin lymphoma (NHL), and cancers of the bladder, esophagus, kidney, and CNS (RR = 0.55-0.96; all P <.05) (Table 1).
Among Black women, breast cancer caused the largest number of cancer deaths overall and among those aged 20-49 and 50-69 years, and lung cancer was the leading cause of cancer death among Black women aged 70 years and older (Table 1;Supplementary Table 2, available online). Compared with all other racial and ethnic groups, Black women had the highest death rates for multiple myeloma and cancers of the pancreas, breast, and bladder (Table 1). Compared with White women, death rates were statistically significantly higher among Black women for multiple myeloma and cancers of the soft tissue including heart, pancreas, colorectum, liver, breast, cervix, uterus, and stomach (RR = 1.28-2.40; all P <.05) and were statistically significantly lower for deaths due to NHL, leukemia, and cancers of the CNS, lung, kidney, oral cavity and pharynx, and ovary (RR = 0.57-0.94; all P <.05).
Cancer mortality in Latino/a individuals
During 2018-2020, lung cancer caused the largest number of cancer deaths among Latino men overall and those aged 70 years and older (Table 1;Supplementary Table 2, available online). Colorectal cancer was the leading cause of cancer death among Latino men aged 20-49 years, and liver and intrahepatic bile duct cancer (ie, liver cancer) was the leading cause of cancer death among Latino men aged 50-69 years. Compared with White men, Latino men had lower death rates for nearly all cancers (RR = 0.46-0.87; all P <.05), except for liver (RR = 1.52, 95% CI = 1.48 to 1.56) and stomach cancers (RR = 2.03, 95% CI = 1.95 to 2.12).
Among Latina women, breast cancer caused the largest number of cancer deaths overall and among those aged 20-49 and 50-69 years (Table 1;Supplementary Table 2, available online), whereas lung cancer was the leading cause of death among those aged 70 years and older. Cancer death rates among Latina women were lower than White women for most cancers (RR = 0.35-0.93; all P <.05), except for liver (RR = 1.64, 95% CI = 1.58 to 1.70), stomach (RR = 2.65, 95% CI = 2.53 to 2.77), and cervical cancers (RR = 1.19, 95% CI = 1.12 to 1.25).
Cancer mortality in NHPI individuals
During 2018-2020, lung cancer caused the largest number of cancer deaths among NHPI men overall and among those aged 50-69 and 70 years and older, whereas liver cancer was the leading cause of cancer death among NHPI men aged 20-49 years (Table 1;Supplementary Table 2, available online). Compared with all other racial and ethnic groups, NHPI men had the highest death rates for stomach cancer (Table 1). Compared with White men, NHPI men had statistically significantly higher death rates due to cancers of the liver (RR = 1.83, 95% CI = 1.51 to 2.20) and stomach (RR = 2.81, 95% CI = 2.09 to 3.70) and statistically significantly lower death rates due to cancers of the esophagus, CNS, bladder, pancreas, colorectum, and lung (RR = 0.42-0.80; all P <.05). Relative to Asian men, NHPI men had statistically significantly higher death rates for leukemia, multiple myeloma, and immunoproliferative neoplasms and cancers of the stomach, liver, lung, prostate, bladder, and kidney (RR = 1.28-1.99; all P <.05) (Figure 2).
Among NHPI women, breast cancer caused the largest number of cancer deaths overall and among those aged 50-69 years (Table 1;Supplementary Table 2, available online). Uterine cancer and lung cancer caused the largest number of deaths among NHPI women aged 20-49 and 70 years and older, respectively. Compared with all other racial and ethnic groups, NHPI women had the highest death rates for NHL, leukemia, and cancers of the oral cavity and pharynx, stomach, soft tissue including heart, cervix, and uterus (Table 1). Compared with White women, cancer death rates among NHPI women were statistically significantly higher for cancers of the stomach, uterus, cervix, soft tissue including heart, liver, and breast (RR = 1.21-3.32; all P <.05) and lower for lung cancer (RR = 0.69, 95% CI = 0.59 to 0.81). Relative to Asian women, NHPI women had statistically significantly elevated death rates for leukemia, NHL, multiple myeloma, and cancers of the breast, cervix, uterus, soft tissue including heart, and lung (RR = 1.49-4.25; all P <.05) (Figure 2).
Cancer mortality in White individuals
During 2018-2020, lung cancer caused the largest number of cancer deaths among White men overall and among those aged 50-69 and 70 years and older, whereas colorectal cancer was the leading cause of cancer death among White men aged 20-49 years (Table 1;Supplementary Table 2, available online). Compared with all other racial and ethnic groups, White men had the highest death rates for NHL, leukemia, and cancers of the esophagus, soft tissue including heart, bladder, and CNS (Table 1).
Among White women, lung cancer caused the largest number of cancer deaths overall and among those aged 50-69 and 70 years and older, and breast cancer was the leading cause of cancer death among White women aged 20-49 years (Table 1;Supplementary Table 2, available online). Compared with all other racial and ethnic groups, White women had the highest death rates for cancers of the CNS, lung, and ovary (Table 1).
Discussion
Our study revealed that the historical aggregation of NHPI and Asian individuals in mortality statistics has masked substantial health disparities among NHPI individuals for decades. In 2018-2020, cancer death rates for NHPI men and women were higher than Asian men and women for many cancers. For example, NHPI women had uterine cancer death rates that exceeded all groups by 50% or more. Additionally, striking racial and ethnic disparities in cancer mortality persisted in the United States across major racial and ethnic groups, with Black men having more than twice the prostate cancer mortality rate of any other group. Cancer death rates for NHPI individuals were the highest of any racial and ethnic group among those aged 20-49 years.
The disaggregation of the NHPI and Asian populations reveals a stark difference in cancer mortality patterns, consistent with studies that have shown disparities in cancer survival (22). Compared with Asian or White individuals, NHPI individuals are known to have lower median household income, lower educational attainment, and a higher percentage of the population living in poverty (12,13,23,24). However, it is important to note that Asian and NHPI populations are each comprised of a diverse range of ethnic groups with vastly different health-care outcomes and socioeconomic status (25,26). We were not able to further disaggregate these populations using the current dataset, though this is an important area for future research.
Cancer death rates are influenced by cancer incidence and survival, which in turn are impacted by risk and protective behaviors, biology, access to care, and other structural factors (2-4). Racial and ethnic disparities can occur at multiple points along the cancer care continuum including differences in exposure to cancer risk factors and access to cancer prevention, early detection, time to treatment, and quality of treatment (3,4,27). Structural racism systematically disadvantages structurally marginalized populations and consequently is an underlying cause of racial and ethnic disparities in health (2,3). For example, the American Cancer Society’s guidelines for cancer prevention focus on modifiable lifestyle factors to lower cancer risk, including obesity and physical activity (28). Obesity rates are high among Black, Latino, AI/AN, and NHPI individuals, who are more likely to live in communities with high rates of economic insecurity, food deserts, and greater barriers to engaging in physical activity (12,29-40). Structurally marginalized populations, especially AI/AN and Latino individuals, have higher percentages of people with limited access to quality care and coverage (4,41-43). Unequal access to health insurance and care has likely influenced higher death rates because of many cancers among Black and NHPI individuals, including breast, colorectal, cervical, and prostate cancers, all screen-detectable cancers (44,45). Additionally, structurally marginalized populations are more likely to receive suboptimal cancer treatment that is inconsistent with recommended clinical practice guidelines and are less likely to be enrolled in clinical trials for new cancer treatments (46-49).
Although Asian and Latino men and women had lower overall cancer death rates than White men and women, liver and stomach cancer death rates were higher. Liver cancer death rates were also elevated in Black, NHPI, and AI/AN men and women. This is partially driven by chronic infection with hepatitis C virus and hepatitis B virus (HBV), which can cause liver cancer (50). Foreign-born Asian individuals from HBV-endemic countries have the highest seroprevalence of HBV, and Black and AI/AN individuals have a high prevalence of hepatitis C virus (50-54). Nonalcoholic fatty liver disease, heavy alcohol consumption, obesity, and diabetes-metabolic diseases also contribute to liver cancer risk (50). For stomach cancer, the prevalence of Helicobacter pylori infection, a known etiological risk factor, is particularly elevated among AI/AN individuals in the southwestern United States, foreign-born Latino individuals, and in Southeast and South Asian countries (55-62).
The main strength of our study is the inclusion of all cancer deaths in the United States during 2018-2020, allowing us to examine disparities in cancer death rates across many cancers. This study examines the updated single race classification recently implemented by NCHS, allowing for the estimation of cancer death rates separately for Asian and NHPI individuals and no longer bridging multiple race individuals into single racial and ethnic categories.
There are limitations to this study that warrant consideration. Demographic data on death certificates are subject to misclassification of race and ethnicity (63). Additionally, there is potential for misclassification of underlying cause of death, which could result from differential reporting of cause of death by race and ethnicity because of racial bias (64). Potential bias introduced by the assignment of race on death certificates by funeral directors is possible also. Further, we chose to compare all racial and ethnic groups with White individuals in the discussion of our results, because this is the largest racial and ethnic group, and we wanted to use a consistent reference group. These comparisons should not imply that cancer rates among White individuals are ideal; indeed, White individuals only have the lowest death rates for liver and stomach cancer deaths. We present age-standardized death rates in the tables so that readers can directly compare any of the groups presented. There are known health disparities within the 6 racial and ethnic groups presented here; however, we were unable to examine cancer death rates in more granular groups based on national heritage or nativity. Finally, it is likely that the COVID-19 pandemic impacted cancer death rates in 2020 due to COVID-19 as a competing cause of death (65).
We have shown the importance of disaggregating Asian and NHPI individuals, as these groups have disparate cancer mortality rates that are hidden when analyzed together (9). Additionally, we demonstrated that racial and ethnic disparities in cancer mortality persisted across racial and ethnic groups in recent years (2,8). Policies aimed at equitable cancer prevention, early detection, and treatment, as well as disaggregation of data for racial and ethnic subpopulations, are needed to address disparities in cancer mortality across racial and ethnic groups.
Supplementary Material
Acknowledgements
The funder did not play a role in the design of the study; the collection, analysis, and interpretation of the data; the writing of the manuscript; but did review the paper prior submission of the manuscript for publication.
The interpretation and reporting of these data are the sole responsibility of the authors.
Results in this manuscript have been presented in part as a poster presentation at the Society for Epidemiologic Research 2022 conference.
Contributor Information
Anika T Haque, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
Amy Berrington de González, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA; The Institute of Cancer Research, London, England, UK.
Yingxi Chen, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
Emily A Haozous, Southwest Center, Pacific Institute for Research and Evaluation, Albuquerque, NM, USA.
Maki Inoue-Choi, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
Wayne R Lawrence, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
Jennifer K McGee-Avila, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
Anna M Nápoles, Division of Intramural Research, National Institute on Minority Health and Health Disparities, Bethesda, MD, USA.
Eliseo J Pérez-Stable, Division of Intramural Research, National Heart, Lung, and Blood Institute, Bethesda, MD, USA.
Kekoa Taparra, Department of Radiation Oncology, Stanford Cancer Institute, Stanford, CA, USA.
Jacqueline B Vo, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
Neal D Freedman, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
Meredith S Shiels, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA.
Data availability
The data are publicly available in Centers for Disease Control and Prevention Wide-ranging Online Data for Epidemiologic Research, found at https://wonder.cdc.gov/ucd-icd10-expanded.html.
Author contributions
Anika Tasnim Haque, MPH (Formal analysis; Writing – original draft; Writing – review & Editing), Amy Berrington de González, DPhil (Writing – review & Editing), Yingxi Chen, MD, PhD (Writing—review & editing), Emily A. Haozous, PhD (Writing – review & Editing), Maki Inoue-Choi, PhD (Writing – review & Editing), Wayne R. Lawrence, DrPH (Writing – review & Editing), Jennifer K. McGee-Avila, PhD (Writing – review & Editing), Anna M. Nápoles, PhD (Writing – review & Editing), Eliseo J. Pérez-Stable, MD (Writing – review & Editing), Kekoa Taparra, MD, PhD (Writing – review & Editing), Jacqueline B. Vo, PhD (Writing – review & Editing), Neal D. Freedman, PhD (Writing – review & Editing), and Meredith S. Shiels, PhD (Conceptualization; Formal analysis; Methodology; Supervision; Writing – original draft; Writing – review & Editing).
Funding
This work was supported by the Intramural Research Program of the National Cancer Institute.
Additional funding was provided in part by the Stanford Cancer Institute, an NCI-designated Comprehensive Cancer Center. KT was funded by a Stanford Cancer Institute Women’s Cancer Center Innovation Award and the Stanford Cancer Institute Fellowship Award.
Conflicts of interest
The authors have no potential conflicts of interest to disclose.
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Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Data Availability Statement
The data are publicly available in Centers for Disease Control and Prevention Wide-ranging Online Data for Epidemiologic Research, found at https://wonder.cdc.gov/ucd-icd10-expanded.html.