Table 4.
Association Between Sleep in Waves III and IV and CRP levels greater than 3 mg/dL in the Add Health Study (Odds Ratios and 95% CI).
| Unadjusted | Fully adjusteda | |
|---|---|---|
| Sleep duration trajectory group | ||
| Short | 1.51 (1.12, 2.04) | 1.86 (1.29, 2.67) |
| Good | Ref | Ref |
| Long | 1.22 (0.82, 1.84) | 1.25 (0.67, 2.35) |
| Sex (female) | ||
| Race/ethnicity | 2.44 (2.09, 2.85) | |
| Black | 0.95 (0.74, 1.22) | |
| Hispanic | 0.98 (0.80, 1.21) | |
| Other | 0.78 (0.57, 1.06) | |
| White | Ref | |
| Overweight in both waves | 3.36 (2.82, 4.02) | |
| Overweight in one wave | 1.97 (1.62, 2.39) | |
| Normal weight in both waves | Ref | |
| Education | ||
| Less than high school | 1.13 (0.85, 1.52) | |
| High school diploma | 1.30 (1.03, 1.66) | |
| Some post-secondary education | 1.13 (0.95, 1.36) | |
| College degree or higher | Ref | |
| Income | ||
| <$50.000 | 1.14 (0.91, 1.43) | |
| $50.000–$100.000 | 1.05 (0.85, 1.29) | |
| >$100.000 | Ref | |
| Alcohol use | 0.86 (0.74, 1.01) | |
| Smoking | 1.03 (0.88, 1.20) | |
| Lack of physical activity | 1.32 (1.08, 1.61) | |
| Hypertension | 1.40 (1.17, 1.68) | |
| Depression | 1.05 (0.85, 1.29) | |
| Snoring | 1.30 (1.13, 1.49) | |
| Trouble sleeping | 1.01 (0.98, 1.04) |
aFully adjusted model also included symptoms of infection, subclinical symptoms of inflammatory disease, and medication use (not shown in table).
Statistically significant results are highlighted in bold.