Abstract
Background
The coronavirus disease (COVID-19) pandemic has affected Blacks and Hispanics in New York City (NYC) disproportionately. This study aims to assess the relationship of race/ethnicity with COVID-19 associated factors such as hypertension, diabetes, neighborhood poverty, and frontline work, in NYC.
Methods
The 2018 New York City Community Health Survey was used to examine the association of hypertension, diabetes, and neighborhood poverty level with race/ethnicity in log-binomial regression models. Number of intensive care unit (ICU) beds and the distribution of frontline workers were acquired from the US Census, the State of New York Department of Labor, and Centers for Medicare and Medicaid Services.
Results
Neighborhoods with high poverty level had a greater risk of hypertension among Blacks (relative risk (RR), 95% confidence interval (CI): 3.4, 1.9–6.4) and diabetes among Hispanics (RR, 95% CI: 5.5, 2.2–14.0), compared with Whites in the lowest poverty neighborhoods. Disproportionately greater percentages of frontline workers were comprised of Blacks (29.4%, 95% CI: 29.3–29.5%) and Hispanics (35.5%, 95% CI: 35.3–35.6%). Predominantly Black and Hispanic boroughs with greater level of poverty had one ICU bed per 900 adults of 60 years of age or older, compared with one ICU bed per 452 in predominantly White boroughs with less poverty.
Conclusion
The greater prevalence of the factors associated with COVID-19 infection and adverse outcomes puts Black and Hispanic populations in NYC at a greater risk. These factors are also related to poverty and should be mitigated together with reducing racial/ethnic inequities.
Keywords: COVID-19, Racial/Ethnic disparities, Hypertension, Diabetes
Introduction
The COVID-19 pandemic has devastated the global community. The USA has the greatest number of deaths of any country, with 64,943 at the time of this writing, on May 1, 2020 [1]. New York City (NYC) has lost 18,399 people to COVID-19, suffering the greatest burden of deaths of any city, worldwide [2]. COVID-19 deaths in NYC, as well as other metropolitan areas, have also once again shone a light on the racial/ethnic health disparities, including comorbidities associated with COVID-19 [3]. COVID-19 hospitalizations and deaths are unevenly distributed across race and ethnicity. Non-Hispanic Blacks, 22% of the population of NYC, comprised 35% of non-fatal COVID-19 hospitalization and 31% of deaths [2]. Hispanics, 29% of the population of NYC, accounted for 31% of non-fatal hospitalization and 30% of fatalities [2]. In comparison, non-Hispanic Whites, who are 32% of the population in NYC, accounted for 24% of non-fatal hospitalization and 29% of fatalities [2]. Differences at the national level are even greater. Predominantly Black counties, for example, have three times the rate of confirmed cases of predominantly White counties [4].
Differences observed in COVID-19 hospitalization rates and mortality reflect the general trends in racial/ethnic health disparities, which arise from complex interactions of ecological variables, like poverty and access to healthcare and individual factors, such as chronic disease [5]. Poverty affects health status and survival rates. In addition, the type of labor force participation covaries with poverty. In NYC, 24% of frontline workers live at or below twice the poverty line [6]. Frontline workers are additionally at increased risk of COVID-19 infection due to the direct contact with COVID-19 patients that may be required by healthcare workers, or from the inability to engage in social distancing, as a result of the requirements of their jobs as the police, firefighters, grocery clerks, and other essential workers. Furthermore, when it comes to the treatment of COVID-19, access to ICU beds is a key factor in the management of the severe cases of the disease [7]. Lower availability of ICU beds and ventilators in areas predominantly inhabited by communities of color would mean lower access to critical care and higher mortality.
At the individual, patient-level, the most frequently noted risk factors associated with COVID-19 hospitalization and death have been the presence of comorbidities such as hypertension [8, 9], diabetes [8], and coronary heart disease [10], alongside age [8]. A study of 5700 hospitalized COVID-19 patients in New York found 94% of patients had at least one comorbidity, 57% had hypertension, and 34% had diabetes [8]. By the study endpoint, 28% of hypertensive patients had died, compared with 13% of non-hypertensives. Mortality among diabetic patients was 30%, compared with 18% in those without diabetes.
The purpose of the present study is to assess the association of race/ethnicity with the factors that increase the risk of adverse outcomes from COVID-19 infections in NYC. Prevalence of COVID-19 comorbidities, including hypertension and diabetes, and aggregate data with respect to the ICU beds capacity and the distribution of frontline and essential occupations are examined. Systematic, population-level assessments of COVID-19 comorbidities in the context of poverty, occupational hazard, and access to critical care associated with race/ethnicity are lacking. The study was designed to address this gap by examining these associations in Black and Hispanic populations in NYC.
Methods
Data Sources
The NYC Community Health Survey (CHS) was used to obtain individual level information that are scalable to population level with respect to COVID-19 associated comorbidities. The CHS is an annual population-based survey of health information and risk behaviors of NYC residents, aged 18 and older, with a cell phone or household landline [11]. A computer-assisted telephone interview is conducted to ask participants about their cardiovascular health and diabetes, among other conditions and health-related topics. The CHS uses stratified random sampling, with stratification on the basis of age, gender, race/ethnicity, and neighborhood. The 2018 CHS was used for the present study. Aggregate data were obtained, separately, for the number of ICU beds and for the distribution of occupations across race/ethnicity. Data about the number of ICU beds in each county of NYC along with the rate of ICU beds per 100,000 people in the population of 60 years of age and older were extracted from Kaiser Health News analysis of hospital cost reports filed to the Centers for Medicare and Medicaid Services [12]. Each county of NYC was then characterized by the racial/ethnic proportions of its population, on the basis of the 2010 Census data [13]. This allowed comparing the estimates of ICU beds across counties that were comprised of predominantly Black and Hispanic residents to counties that were predominantly comprised of White residents. Additionally, detailed occupational data across race/ethnicity were obtained from the New York State Department of Labor in order to assess the distribution of race/ethnicity across major groups of frontline workers, including healthcare workers, protective services workers, and non-protective services workers in each county of NYC [14].
Measures
Health-related measures from CHS included reported lifetime hypertension and reported lifetime diabetes. Demographic variables included race/ethnicity and age. Hispanic, Black, and White race/ethnicities were recorded as mutually exclusive categories. Age was categorized in one of the three groups of 18 to 44, 45 to 64, and 65 years of age and older. The respondent’s household income level in relation to federal poverty level (FPL) and proportion of the Zip Code population living below FPL (neighborhood poverty level) were also measured. Household income level was categorized as one of the five groups of < 100% FPL, 100 to < 200% FPL, 200 to < 400% FPL, 400 to < 600% FPL, and ≥ 600% FPL. Neighborhood poverty level was categorized as percentage of population living below FPL, in one of four categories of < 10% (low poverty), 10 to < 20%, 20 to < 30%, and 30 to < 100% (high poverty). Rate of ICU beds was recorded as the inverse of the number of people 60 years of age and older per ICU bed in the county. Percentage of frontline and essential workers for each race/ethnicity was calculated as the proportion of these occupation groups across all counties of NYC who were of each race/ethnicity.
Statistical Analyses
Complex survey analysis was used to accommodate the survey design utilized by CHS. All estimates from CHS data were weighted by the appropriate probability weights to represent the population of NYC. Bivariate analyses were conducted using the Pearson chi-square test, but with the test statistics corrected with Rao and Scott [15] method to account for survey design and were reported as design-based F statistics, along with corresponding p values. Log-binomial models were used to assess the association of risk factors with race/ethnicity in univariate and multivariable models, adjusted for gender and neighborhood poverty level, and to quantify the corresponding relative risks (RR) and 95% confidence intervals (95% CI). Adjustment for gender and neighborhood poverty level was included because of their importance in the epidemiology and pathophysiology of disease [16–19]. When a significant interaction (p < 0.05) existed between covariates, RR and 95% CI of linear combinations of covariates were calculated, and the main effect of the independent variable of interest was reported at the reference level of the covariate. Separate models were fit for Blacks and Hispanics to assess the association of putative factors. Models were constructed following Agresti [20]. As age has been identified as a major risk factor for COVID-19 hospitalization and mortality and has been separately associated with hypertension [21] and diabetes [22], models were stratified by age group. Covariates with a p value of less than 0.15 [23] were entered into multivariable models to adjust for their effect. Backward elimination was used to exclude covariates from the models, unless the fit of the models significantly changed. All statistical analyses were conducted using Stata, version 15 [24].
Results
CHS Data
The unweighted sample consisted of 10,076 participants, representing a population of 6,670,172 adults aged 18 and older. Fifty-four percent were female (representing 3,555,781 women in NYC population). Thirty-two percent were aged 45 to 64 (representing 2,099,488 of the NYC population in the age group), and 15% were 65 and older (representing 1,018,127 of the NYC population in the age group). Non-Hispanic Black residents comprised 22% of the population (representing 1,468,016 of the population of NYC), and Hispanics constituted 27% (representing 1,799,268 of the population of NYC). Table 1 shows the distribution of race/ethnicity across neighborhood poverty levels. Significantly greater percentages of Blacks (22%) and Hispanics (29%) lived in neighborhoods with high-poverty levels compared with Whites (5%). The distribution of hypertension and diabetes by age group and race/ethnicity is presented in Table 2. In every age group, reported prevalences of hypertension and diabetes were significantly greater among Blacks and Hispanics compared with Whites. Among those 65 years of age or older, 74% of Blacks and 69% of Hispanics reported hypertension, compared with 50% of Whites. In the same age group, 30% of Blacks and 39% of Hispanics reported diabetes, compared with 20% of Whites. Significantly greater proportions of Black (79%) and Hispanic (78%) New Yorkers aged 65 years or older reported either hypertension or diabetes compared with Whites (56%).
Table 1.
Percentage of each race/ethnicity in 2018 CHS by neighborhood poverty level (proportion of population of the neighborhood living below FPL) across race/ethnicity in 2018 CHS
| Race/ethnicity | ||||
|---|---|---|---|---|
| White | Black | Hispanic | ||
| Total population N | 2,361,433 | 1,468,016 | 1,799,268 | |
| Neighborhood poverty level | % | % | % | Test statistic (p)a |
| 0 to < 10% (low poverty) | 35 | 13 | 7 | 33 (< 0.0001) |
| 10 to < 20% | 43 | 40 | 32 | |
| 20 to < 30 | 18 | 26 | 33 | |
| 30 to < 100% (high poverty) | 5 | 22 | 29 | |
aDesign-corrected F statistic
Table 2.
Lifetime prevalence of hypertension and diabetes reported by each age group across race/ethnicity in 2018 CHS
| Race/ethnicity | ||||
|---|---|---|---|---|
| White | Black | Hispanic | ||
| Total population N | 2,351,196 | 1,466,170 | 1,797,232 | |
| Condition and age group | % | % | % | Test statistic (p)a |
| Hypertension | ||||
| 18–44 years of age | 8.9b | 15.1 | 10.9 | 10.4 (0.0001) |
| 45–64 years of age | 29.2 | 46.4 | 38.8 | 7.4 (0.004) |
| 65+ years of age | 50.2 | 74.4 | 68.9 | 24.9 (< 0.0001) |
| Diabetes | ||||
| 18–44 years of age | 1.5 | 5.0 | 4.9 | 6.1 (0.004) |
| 45–64 years of age | 7.7 | 19.4 | 21.7 | 34.6 (< 0.0001) |
| 65+ years of age | 19.7 | 30.2 | 39.1 | 15.2 (< 0.0001) |
| Hypertension or diabetes | ||||
| 18–44 years of age | 9.7 | 16.9 | 13.8 | 11.8 (< 0.0001) |
| 45–64 years of age | 31.1 | 50.1 | 45.2 | 9.7 (0.0009) |
| 65+ years of age | 55.6 | 79.3 | 77.8 | 18.8 (< 0.0001) |
aDesign-corrected F statistic
bPercentages are of each race/ethnicity within the corresponding age group
Aggregated Community-Level Data
In the Bronx borough of NYC, where 44% of the population are Black and 9% are non-Hispanic White, the rate of laboratory confirmed cases of COVID-19 per 100,000 population was 2552 [2], and there was one ICU bed per 900 residents aged 60 or older. In contrast, in the borough of Manhattan, where 18% of the population are Black and 47% are non-Hispanic White, there were 1082 per 100,000 population (i.e., less than half of the COVID-19 rate of the Bronx) and one ICU bed per 452 residents aged 60 or older (twice the rate of ICU beds of the Bronx). Occupation data captured 640,660 frontline workers in NYC. Healthcare workers comprised 19% of the frontline and essential workers, those in protective services (such as police, firefighters, and security guards) 17%, and other essential workers in non-protective services (such as mail carriers, bus drivers, and building cleaners) 64% of frontline and essential workers. Blacks were 29.4% (95% CI: 29.3–29.5%) and Hispanics 35.5% (95% CI: 35.3–35.6%) of frontline and essential workers. Whites were 20.4% (95% CI: 20.3–20.5%) of frontline and essential workers.
Log-Binomial Regression Models
Black and Hispanic race/ethnicity was associated with neighborhood poverty level. RR of living in the highest poverty level neighborhood (30 to < 100% FPL) was 4.0 (95% CI: 2.6–6.3) among Blacks and 6.5 (95% CI: 4.3–9.1) among Hispanics, compared with Whites. The RR of hypertension among Blacks living in neighborhoods with the highest poverty level, compared with Whites in the lowest-poverty neighborhoods, was 3.4 (95% CI, 1.9–6.4). Hispanics living in neighborhoods with the highest poverty level had a RR of diabetes of 5.5 (95% CI, 2.2–14.0), compared with Whites in the lowest poverty neighborhoods. Table 3 presents the unadjusted RR of hypertension and diabetes by race/ethnicity within each age stratum. Unadjusted RR in all age strata of Blacks and Hispanics, except for hypertension among Hispanics 18 to 44 years of age, was significantly greater, in comparison with the Whites. Adjusted RR of hypertension and diabetes is presented in Table 4. In age-stratified multivariable models that were adjusted for gender and neighborhood poverty level, RR of hypertension and diabetes was greater among Blacks and Hispanic across every age strata, except for hypertension among Hispanics of 45 to 64 years of age, and diabetes among Blacks and Hispanics of 65 years of age and older, compared with Whites. However, RR of diabetes in high-poverty neighborhoods among Blacks (RR = 44.7; 95% CI: 8.7–228.3) and Hispanics (RR = 48.5; 95% CI: 9.7–243.5) who were 65 years of age and older was much higher, in comparison with Whites.
Table 3.
Unadjusted relative risk (RR) of hypertension and diabetes by each age group across race/ethnicity in 2018 CHS
| Race/ethnicity | ||||
|---|---|---|---|---|
| Black | Hispanic | |||
| RR (95% CI) | p | RR (95% CI) | p | |
| Hypertension | ||||
| 18–44 years of age | 1.7 (1.3–2.2) | < 0.001 | 1.2 (1.0–1.5) | 0.06 |
| 45–64 years of age | 1.6 (1.2–2.2) | < 0.01 | 1.3 (1.1–1.6) | < 0.01 |
| 65+ years of age | 1.5 (1.3–1.7) | < 0.001 | 1.4 (1.2–1.5) | < 0.001 |
| Diabetes | ||||
| 18–44 years of age | 3.3 (1.4–7.5) | < 0.01 | 3.2 (1.7–6.1) | < 0.01 |
| 45–64 years of age | 2.5 (2.0–3.2) | < 0.001 | 2.8 (2.1–3.7) | < 0.001 |
| 65+ years of age | 1.5 (1.2–2.0) | < 0.01 | 2.0 (1.5–2.6) | < 0.001 |
| Hypertension or diabetes | ||||
| 18–44 years of age | 1.7 (1.3–2.2) | < 0.001 | 1.4 (1.2–1.7) | < 0.01 |
| 45–64 years of age | 1.6 (1.2–1.7) | < 0.001 | 1.5 (1.2–1.7) | < 0.001 |
| 65+ years of age | 1.4 (1.3–1.6) | < 0.001 | 1.4 (1.2–1.6) | < 0.001 |
The reference group (i.e., RR = 1.0) for each RR reported by race/ethnicity within each age group is Whites of the same age
Table 4.
Adjusted relative risk (RR) of hypertension and diabetes by each age group across race/ethnicity in 2018 CHS
| Race/ethnicity | ||||
|---|---|---|---|---|
| Black | Hispanic | |||
| RR (95% CI) | p | RR (95% CI) | p | |
| Hypertension | ||||
| 18–44 years of age | 1.7 (1.3–2.2) | < 0.001 | 1.3 (1.0–1.6) | < 0.05 |
| 45–64 years of age | 1.5 (1.1–2.1) | < 0.05 | 1.2 (1.0–1.4) | 0.1 |
| 65+ years of age | 1.5 (1.3–1.7) | < 0.001 | 1.3 (1.1–1.5) | < 0.01 |
| Diabetes | ||||
| 18–44 years of age |
320.1 (31.9–3217.9)* |
< 0.001 |
133.3 (10.3–1731.2)* |
< 0.001 |
| 45–64 years of age | 2.3 (1.7–2.9) | < 0.001 | 2.3 (1.7–3.2) | < 0.001 |
| 65+ years of age | 1.2 (0.6–2.5)* | 0.6 | 1.6 (0.6–4.2)* | 0.4 |
| Hypertension or diabetes | ||||
| 18–44 years of age | 2.9 (1.7–5.1)* | < 0.001 | 1.4 (1.1–1.6) | < 0.01 |
| 45–64 years of age | 1.5 (1.1–2.0) | < 0.01 | 1.3 (1.1–1.6) | < 0.01 |
| 65+ years of age | 1.4 (1.3–1.6) | < 0.001 | 1.3 (1.1–1.5) | < 0.001 |
The reference group (i.e., RR = 1.0) for each RR reported by race/ethnicity within each age group is Whites of the same age
*A significant interaction between race/ethnicity and neighborhood poverty level existed. The effect reported corresponds to the effect of race/ethnicity at low-poverty level neighborhood
Discussion
The findings of this study from self-reported CHS data indicate greater prevalences of hypertension and diabetes among Blacks and Hispanics, in comparison with Whites, in New York City. These results are consistent with other reports at the national level [22, 25, 26], as well as in New York City [27]. The findings are important in and of themselves, as hypertension and diabetes are among the leading causes of morbidity and mortality in the USA [28]. Previous reports have also consistently found a higher prevalence of hypertension among Blacks, in contrast to Whites [25, 26]. Other studies have additionally found a difference in response to antihypertensive treatment [29]. However, these findings are particularly significant in the context of the association of these comorbidities with COVID-19 hospitalization and deaths. Greater rates of the COVID-19 associated comorbidities among Blacks and Hispanics put members of these race/ethnicities at a greater risk of death from a COVID-19 infection. Comorbidities in all age strata were significantly greater among Blacks and Hispanics. As the older population is more vulnerable to COVID-19, the greater prevalence of comorbidities among Blacks and Hispanics 65 years of age and older puts these populations at greater risk. However, even in the youngest age group (i.e., 18 to 44 years of age), prevalence of diabetes among Blacks and Hispanics was 3 times that of Whites. Therefore, the expected risk of COVID-19 infection and adverse outcomes among Blacks and Hispanics, who comprise the greatest proportion of frontline workers [6], may be increased as a result of both pre-existing comorbidities and occupational exposure.
Poverty, too, has been associated with general health [17]. When, in 2001, the state of New York expanded Medicaid to include coverage of adults with income of 100% of the federal poverty level (FPL), or less, mortality rate decreased [30]. Poverty and socioeconomic status can also influence access to critical care [31]. As patients hospitalized with acute respiratory distress may exhibit hypoxemic respiratory failure and require mechanical ventilation and extracorporeal membrane oxygenation, access to ICU beds becomes an important factor in the management of COVID-19 [7]. Although ICU capacity was greatly expanded by executive order of the governor in response to the COVID-19 epidemic in New York [32], the capacity surge is hospital-based. So, each hospital expands its capacity by the same proportion of its existing ICU beds, thereby continuing any original variability in ICU capacity.
Poverty can also affect the ability to adhere to social distancing [4, 33], which is currently the most effective prevention tool. In addition to the lower ability to socially distance in denser populations of poor neighborhoods, those in low-income occupations, including essential workers, are less able to adhere to socially distance, in contrast to others who can work from home [33]. Hispanics and non-Hispanic Blacks in NYC are overrepresented among frontline and essential workers, including among healthcare workers, police, firefighters, grocery clerks, and others who are at a heightened risk of potential exposure to the virus. They are, therefore, at a greater risk of infection and mortality from COVID-19.
Neighborhood poverty level was also independently associated with greater risk of hypertension and diabetes in all but one age stratum. More importantly, however, neighborhood poverty compounded the relative risk of diabetes of Blacks and Hispanics 18 to 44 years of age and 65 years of age and older, compared with Whites. These observations are consistent with previous reports of the nexus of neighborhood poverty and race/ethnicity [16]. Neighborhoods with high-poverty level may contribute to the higher rates of comorbidities because healthy food may be less available [16] or a regular medical home or provider not accessible [34]. Neighborhoods with the highest poverty level also have the lowest availability of ICU beds. The NYC borough of Bronx with 58% of the population at or below “NYCgov Poverty threshold” [35] had half the rate of ICU beds per 100,000 population of adults 60 years of age and older, compared with the borough of Manhattan with 31% of the population at or below poverty threshold.
The tragedy of COVID-19 morbidity and mortality in NYC is widespread, but it is greatly exacerbated by the nexus of racial/ethnic health disparities, occupational hazard, and poverty. The confluence of these factors impacts the higher rates at which minority populations are exposed to COVID-19 infection, the prevalence of comorbidities that make them more vulnerable, once infected, and their access to critical care that may be necessary to combat the adverse outcomes of their COVID-19 infection that may be compounded by their comorbidities.
Limitations
This study did not assess COVID-19 infections and adverse outcomes in the same individuals who reported hypertension and diabetes. Therefore, the findings are limited to population-level associations. Furthermore, all the data were limited to the population of NYC. Consequently, the observations from this study may not be generalizable to other populations and geographical contexts.
Conclusion
Hypertension, diabetes, occupational exposure, and inadequate access to intensive care put Black and Hispanic populations in NYC at a greater risk of COVID-19 infection and adverse outcomes. Poverty is also related to all of these factors that are associated with the greater COVID-19 risks. To reduce racial/ethnic health inequities, all the COVID-19 associated factors must be mitigated together with poverty.
Compliance with Ethical Standards
Conflict of Interest
The author declares that he has no conflict of interest.
Research Involving Human Participation
This article does not contain any studies with human participants performed by the author. Retrospective data from the 2018 New York City Community Health Survey (CHS) were used.
Footnotes
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
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