Table 4 Demographic characteristics of cohort members enrolled in 2007 by three-year retention status
Variable | KP California members with 2007 cohort enrollment | |
|---|---|---|
Retained | Lost to follow-up | |
n | 748,984 | 308,395 |
Sex, male (%) | 36.2 | 39.9 |
Age group (%) | Â | Â |
  20.0-24.9 y | 18.4 | 29.2 |
  25.0-29.9 y | 23.7 | 26.5 |
  30.0-34.9 y | 27.0 | 22.8 |
  35.0-39.9 y | 30.9 | 21.5 |
Race/ethnicity (%) | Â | Â |
  Non-Hispanic white | 29.9 | 25.2 |
  Hispanic | 35.7 | 35.6 |
  Black | 7.3 | 5.4 |
  Asian/Pacific Islander | 11.3 | 7.8 |
  Others | 2.1 | 1.5 |
  Unknown | 13.7 | 24.5 |
Neighborhood education (%) | Â | Â |
  Less than high school | 23.2 | 23.5 |
  High school graduate | 20.9 | 20.8 |
  Some college or associate degree | 30.9 | 30.6 |
  Bachelor degree or higher | 25.0 | 25.1 |
Neighborhood household income (%) | Â | Â |
  <$15,000 | 11.2 | 11.8 |
  $15,000-$34,999 | 19.8 | 20.5 |
  $35,000-$49,999 | 15.0 | 15.2 |
  $50,000-$74,999 | 20.4 | 20.2 |
  $75,000-$99,999 | 13.6 | 13.1 |
  $100,000-$149,999 | 13.0 | 12.4 |
  $150,000 or more | 7.0 | 6.8 |
Receivers of Medi-Cal or other subsidized services (%) | 2.6 | 2.3 |
BMI class (%) | Â | Â |
  <18.5 kg/m2 | 1.5 | 1.9 |
  18.5-24.9 kg/m2 | 32.2 | 35.6 |
  25.0-29.9 kg/m2 | 31.9 | 31.1 |
  30.0-34.9 kg/m2 | 19.0 | 17.4 |
  35.0-39.9 kg/m2 | 8.9 | 8.1 |
  40.0-49.9 kg/m2 | 5.5 | 5.0 |
  50.0-59.9 kg/m2 | 0.9 | 0.8 |
  >60 kg/m2 | 0.1 | 0.1 |