Table 1.
Comparison of descriptive statistics of CRC among major US racial/ethnic groups, as reported in SEER database (1973–2009)
| Race/Ethnicity | Period | NHW (reference group) N = 621,235 | AAN = 71,309 | HispanicN = 45,405 | A/PIN = 51,762 | AI/AN (CHSDA) N = 3232 |
|---|---|---|---|---|---|---|
| % Male | 1973–2009 | 50.4% | 47.9%*** | 53.2%*** | 54.0%*** | 49.5% |
| 1973–1990 | 51.2% | 48.8%*** | 54.1%*** | 55.4%*** | 49.8% | |
| 1991–2009 | 50.1% | 47.2%*** | 52.5%** | 53.3%** | 49.2% | |
| % Married | 1973–2009 | 58.1% | 43.1%*** | 58.0% | 67.0%*** | 57.8% |
| 1973–1990 | 61.4% | 46.3%*** | 60.6% | 67.6%*** | 58.5% | |
| 1991–2009 | 56.5% | 41.8%*** | 57.4% | 66.8%*** | 56.9% | |
| Median age of diagnosis (years) | 1973–2009 | 72 | 66*** | 66*** | 68*** | 64*** |
| 1973–1990 | 73 | 67*** | 66*** | 70*** | 65*** | |
| 1991–2009 | 71 | 65*** | 66*** | 67*** | 63*** | |
| % Age <50 years at diagnosis | 1973–2009 | 6.7% | 11.9%*** | 15.4%*** | 12.0%*** | 16.5%*** |
| 1973–1990 | 5.9% | 10.1%*** | 14.6%*** | 10.8%*** | 14.9%*** | |
| 1991–2009 | 7.7% | 12.8%*** | 16.2%*** | 13.0%*** | 17.8%*** | |
| % Localized SEER summary stage | 1973–2009 | 42.2% | 39.3%*** | 40.4%*** | 42.0% | 38.0%*** |
| 1973–1990 | 41.3% | 38.5%** | 39.2%*** | 41.3% | 37.1%*** | |
| 1991–2009 | 43.1% | 39.9%*** | 41.1%** | 42.4% | 38.7%*** | |
| % Regional and distant SEER summary stage | 1973–2009 | 57.8% | 60.7%*** | 59.6%*** | 58.0% | 62.0%*** |
| 1973–1990 | 58.7% | 61.5%*** | 60.8%** | 58.7% | 62.9%*** | |
| 1991–2009 | 56.9% | 60.1%*** | 58.9% | 57.6% | 61.3%*** | |
| % AJCC Stage 0 (1988+) | 1973–2009 | 3.0% | 3.4%*** | 3.5%*** | 3.5%*** | 1.7%*** |
| % AJCC stages I/II, (1988+) | 1973–2009 | 55.0% | 48.4%*** | 50.7%*** | 50.9%*** | 51.6%* |
| % AJCC stages III/IV (1988+) | 1973–2009 | 42.0% | 48.1%*** | 45.8%*** | 45.8%*** | 46.6%*** |
| % Low grades (grade I/II) | 1973–2009 | 78.4% | 82.8%*** | 80.3%*** | 81.6%*** | 80.9%* |
| 1973–1990 | 77.7% | 82.1%*** | 79.6%** | 81.0%*** | 80.2%** | |
| 1991–2009 | 79.2% | 83.2%*** | 80.8%** | 82.1%*** | 81.5%*** | |
| % High grades (grade III/IV) | 1973–2009 | 21.6% | 17.2%*** | 19.7%*** | 18.4%*** | 19.1%* |
| 1973–1990 | 22.3% | 17.9%*** | 20.4%** | 19%*** | 19.8%*** | |
| 1991–2009 | 20.8% | 16.8%*** | 19.2%* | 17.9%*** | 18.5%*** |
NHW: Non‐Hispanic White, AA: African American, A/PI: Asian/Pacific Islander, AI/AN: American Indian and Alaska Native; AJCC: American Joint Committee on Cancer; *P < 0.01, **P < 0.001, ***P < 0.0001, compared with NHW.