TABLE 3.
Annual age-adjusted incidence rates of diabetes (per 1,000 person-years) within the Hawaii component of the MEC study, 1993–1996
| N | Incident cases | Incidence rate (95% CI) | Incidence rate for KP members (95% CI) | |
|---|---|---|---|---|
| Overall | 93,860 | 11,838 | 10.4 (9.8–11.1) | 13.5 (11.8–15.1) |
| Sex | ||||
| Male | 43,801 | 6,033 | 11.7 (10.7–12.7) | 14.8 (12.3–17.3) |
| Female | 50,059 | 5,805 | 9.4 (8.5–10.2) | 12.4 (10.3–14.6) |
| Ethnicity | ||||
| Caucasian | 33,229 | 2,386 | 5.8 (5.0–6.6) | 8.7 (6.7–10.7) |
| Japanese American | 39,675 | 5,957 | 12.5 (11.4–13.5) | 15.8 (12.4–19.2) |
| Native Hawaiian | 12,159 | 2,182 | 15.5 (13.3–17.6) | 20.5 (15.7–25.3) |
| Other | 8,797 | 1,313 | 12.2 (9.9–14.4) | 15.8 (10.6–21.0) |
| Age at cohort entry (years) | ||||
| 45–49 | 21,017 | 2,278 | 8.5 (7.7–10.2) | 9.8 (7.0–12.5) |
| 50–54 | 16,111 | 2,152 | 10.7 (9.0–12.2) | 12.0 (8.5–15.5) |
| 55–59 | 12,832 | 1,887 | 12.2 (9.8–13.5) | 15.0 (10.5–19.5) |
| 60–64 | 13,815 | 1,955 | 11.9 (10.1–13.7) | 14.8 (10.2–19.3) |
| 65–69 | 14,903 | 1,969 | 11.5 (9.6–13.0) | 16.8 (11.9–21.7) |
| 70–74 | 12,502 | 1,364 | 10.1 (8.7–12.2) | 14.6 (9.3–19.9) |
| 75–79 | 2,683 | 233 | 8.5 (4.9–11.7) | 16.7 (3.9–29.5) |
| BMI (kg/m2)* | ||||
| <22.0 | 23,906 | 1,102 | 3.6 (1.5–5.6) | 4.6 (0.0–10.0) |
| 22.0–24.9 | 28,889 | 2,703 | 7.4 (6.6–8.1) | 9.1 (7.2–11.1) |
| 25.0–29.9 | 29,289 | 4,816 | 13.8 (12.4–15.1) | 16.6 (13.4–19.8) |
| ≥30.0 | 10,576 | 3,068 | 25.8 (22.9–28.7) | 32.4 (25.9–39.0) |
| Education (years)* | ||||
| ≤12 | 34,486 | 5,087 | 12.9 (10.6–15.2) | 16.9 (10.7–23.1) |
| 13–15 | 27,119 | 3,428 | 10.3 (9.1–11.5) | 14.0 (10.7–17.4) |
| >15 | 31,486 | 3,196 | 8.0 (7.0–9.0) | 10.0 (7.6–12.3) |
Total follow-up time is 1,119,224 person-years.
*Totals may not add up to 100% because of missing values.