Table 2.
Comparisons of Member Sociodemographics and Characteristics
| Lark DPP sample (N = 16,327) | NDPP sample (N = 143,489) | NHIS prediabetic sample (N = 2118) | |
|---|---|---|---|
| Age (years) | |||
| 18–44 | 41.0% | 30.6% | 17.1% |
| 45–64 | 55.3% | 54.5% | 39.3% |
| 65+ | 3.8% | 14.9% | 43.5% |
| χ2 = 20343.0** | χ2 = 3919.7** | ||
| Starting body mass index | |||
| Overweight | 16.6% | 27.3% | 31.7% |
| Obese | 81.9% | 72.3% | 40.0% |
| χ2 = 821.1** | χ2 = 505.88** | ||
| Sex | |||
| Female | 77.1% | 75.3% | 54.3% |
| Male | 22.9% | 24.7% | 45.7% |
| χ2 = 25.7** | χ2 = 513.58** | ||
| Race | |||
| White (non-Hispanic) | 73.4% | 64.6% | 65.5% |
| Black (non-Hispanic) | 10.6% | 11.9% | 12.2% |
| Hispanic or Latino | 10.0% | 9.0% | 13.6% |
| Other (non-Hispanic) | 6.0% | 14.5% | 8.6% |
| χ2 = 987.7** | χ2 = 63.99** | ||
χ2values indicate tests comparing the Lark sample with the NDPP sample and to the NHIS prediabetic sample in separate analyses.
**
<0.01.
DPP, Diabetes Prevention Program; NDPP, National Diabetes Prevention Program; NHIS, National Health Interview Survey.