Characteristics of the Cohort, Kaiser Permanente–Northern California (KPNC) 2006 to 2013
| Characteristics, % | N (472,541) | % |
|---|---|---|
| Age, years | ||
| 50 to 54 | 204,019 | 43.2 |
| 55 to 59 | 111,756 | 23.7 |
| 60 to 64 | 72,076 | 15.3 |
| 65 to 69 | 52,149 | 11.0 |
| 70 to 74 | 32,541 | 6.9 |
| Females | 254,632 | 53.9 |
| Race-ethnicity | ||
| Non-Hispanic White | 269,639 | 57.1 |
| Non-Hispanic Black | 34,369 | 7.3 |
| Hispanics/Latinos | 57,729 | 12.2 |
| Asian/Pacific Islanders | 68,683 | 14.5 |
| Native Americans | 2,197 | 0.5 |
| Multiple race | 18,959 | 4.0 |
| Unknown | 20,965 | 4.4 |
| Geographical region | ||
| Alameda | 80,225 | 17.0 |
| San Francisco/Peninsula/South Bay | 158,877 | 33.6 |
| North Bay | 46,550 | 9.9 |
| Walnut Creek/Diablo | 47,001 | 9.9 |
| Central Valley | 26,840 | 5.7 |
| Sacramento | 105,783 | 22.4 |
| Fresno | 7,265 | 1.5 |
| Percentage of households below federal poverty level, quintiles | ||
| 1 | 100,498 | 21.3 |
| 2 | 98,428 | 20.9 |
| 3 | 96,150 | 20.4 |
| 4 | 92,072 | 19.5 |
| 5 | 84,798 | 18.0 |
| Charlson Comorbidity Index | ||
| 0 | 370,544 | 78.4 |
| 1 | 85,730 | 18.1 |
| 2 | 12,764 | 2.7 |
| 3+ | 3,503 | 0.7 |
| Enrollment in health plan, years | ||
| 2.0 to 4.99 | 72,675 | 15.4 |
| 5.0 to 9.99 | 114,065 | 24.1 |
| 10.0+ | 285,801 | 60.5 |