Table 4.
1992 Cohort | 2001 Cohort | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Study Population |
Age Group | Predicted Cases |
Person-year | Rate (%) | 95% CI | Predicted Cases |
Person-year | Rate (%) | 95% CI | ||
African Americans | 70–74 | 30 | 1705 | 1.8 | 1.2 | 2.5 | 10 | 2220 | 0.5* | 0.2 | 0.8 |
75–79 | 46 | 2194 | 2.1 | 1.6 | 2.8 | 27 | 2907 | 0.9* | 0.6 | 1.4 | |
80–84 | 50 | 1699 | 3.0 | 2.2 | 3.9 | 27 | 1634 | 1.7 | 1.1 | 2.4 | |
85+ | 63 | 1340 | 4.7 | 3.6 | 6.0 | 32 | 926 | 3.4 | 2.3 | 4.8 | |
Overall^ | -- | -- | 2.5 | 2.1 | 2.9 | -- | -- | 1.3* | 1.0 | 1.5 | |
Yoruba | 70–74 | 14 | 1748 | 0.8 | 0.5 | 1.4 | 17 | 3574 | 0.5 | 0.3 | 0.8 |
75–79 | 22 | 1699 | 1.3 | 0.8 | 2.0 | 24 | 3315 | 0.7 | 0.5 | 1.1 | |
80–84 | 27 | 1404 | 1.9 | 1.3 | 2.8 | 18 | 1162 | 1.5 | 0.9 | 2.4 | |
85+ | 40 | 1307 | 3.1 | 2.2 | 4.2 | 15 | 661 | 2.3 | 1.3 | 3.7 | |
Overall^ | -- | -- | 1.5 | 1.2 | 1.8 | -- | -- | 1.0 | 0.7 | 1.2 |
denotes significant difference in rates between the 1992 and 2001 African American cohorts.
Overall rates were standardized using the age distribution of 1990 United States census data for African Americans in Marion County.