Table 1 Characteristics of the KP California young adult cohort
Variable | KPNC | KPSC | Total |
|---|---|---|---|
n | 952,731 | 976,739 | 1,929,470 |
Sex, male (%) | 42.5 | 42.0 | 42.2 |
Age group (%) | Â | Â | Â |
  20.0-24.9 y | 24.9 | 26.3 | 25.5 |
  25.0-29.9 y | 24.9 | 24.4 | 24.7 |
  30.0-34.9 y | 24.5 | 24.1 | 24.3 |
  35.0-39.9 y | 25.7 | 25.2 | 25.5 |
Race/ethnicity (%) | Â | Â | Â |
  Non-Hispanic white | 33.8 | 18.8 | 26.2 |
  Hispanic | 26.9 | 43.6 | 35.4 |
  Black | 5.7 | 6.4 | 6.0 |
  Asian/Pacific Islander | 11.7 | 8.3 | 10.0 |
  Others | 1.8 | 1.5 | 1.6 |
  Unknown | 20.1 | 21.4 | 20.8 |
Neighborhood education (%) | Â | Â | Â |
  Less than high school | 18.6 | 27.7 | 23.2 |
  High school graduate | 20.3 | 21.0 | 20.7 |
  Some college or associate degree | 31.4 | 30.1 | 30.7 |
  Bachelor degree or higher | 29.7 | 21.2 | 25.4 |
Neighborhood household income (%) | Â | Â | Â |
  <$15,000 | 10.9 | 11.9 | 11.4 |
  $15,000-$34,999 | 19.1 | 21.1 | 20.1 |
  $35,000-$49,999 | 14.8 | 15.2 | 15.0 |
  $50,000-$74,999 | 21.0 | 19.6 | 20.3 |
  $75,000-$99,999 | 13.9 | 12.9 | 13.4 |
  $100,000-$149,999 | 12.8 | 12.9 | 12.8 |
  $150,000 or more | 7.5 | 6.4 | 7.0 |
Receivers of Medi-Cal or other subsidized services (%) | 1.8 | 2.8 | 2.3 |
BMI class (%) | Â | Â | Â |
  <18.5 kg/m2 | 1.8 | 1.8 | 1.8 |
  18.5-24.9 kg/m2 | 38.7 | 34.4 | 36.5 |
  25.0-29.9 kg/m2 | 31.5 | 31.8 | 31.6 |
  30.0-34.9 kg/m2 | 16.1 | 18.0 | 17.0 |
  35.0-39.9 kg/m2 | 7.1 | 8.2 | 7.7 |
  40.0-49.9 kg/m2 | 4.1 | 4.9 | 4.5 |
  50.0-59.9 kg/m2 | 0.6 | 0.8 | 0.7 |
  >60 kg/m2 | 0.1 | 0.1 | 0.1 |