Table 1.
Descriptive Statistics for Variables, NSHAP (n = 1,790)
| Range | Mean or proportion (SD) | |
|---|---|---|
| C-reactive protein (mg/L)a | 0–8.57 | 2.08 (1.98) |
| Productive activities | ||
| Number of roles | 0–4 | 1.81 (1.06) |
| Employment | 0–2 | 0.47 (0.75) |
| Volunteering | 0–6 | 2.10 (2.06) |
| Attend meeting | 0–6 | 2.62 (2.16) |
| Caregiving | 0–6 | 0.73 (1.81) |
| Demographic | ||
| Age | 57–85 | 69.46 (7.87) |
| Female | 0–1 | 0.51 |
| White | 0–1 | 0.80 |
| Black | 0–1 | 0.13 |
| Other | 0–1 | 0.07 |
| Married | 0–1 | 0.62 |
| Education | 0–3 | 1.52 (1.06) |
| Low net worth | 0–1 | 0.26 |
| Lifestyle factors | ||
| Tobacco use | 0–1 | 0.15 |
| Physical activity | 0–4 | 3.20 (1.30) |
| Obese (body mass index ≥ 30kg/m2) | 0–1 | 0.37 |
| Depressive symptoms (Center for Epidemiologic Studies Depression Scale) | 0–28 | 5.43 (5.10) |
| Chronic conditions | ||
| Emphysema | 0–1 | 0.11 |
| Asthma | 0–1 | 0.10 |
| Diabetes | 0–1 | 0.21 |
| Lipid medication | 0–1 | 0.37 |
aOriginal value of C-reactive protein.