Table 2a. Adjusted Odds Ratio of Insomnia Stratified by Body Weight Among Subjects in the Non-Intervention Group, Rural Midwest, 2005 (n=647).
| Characteristics | Underweight/Normalc (N=282) | Overweight/Obese (N=365) | ||
|---|---|---|---|---|
|
| ||||
| aPORa | 95% CI | aPOR | 95% CI | |
| Regular physical activity | 0.15 | (0.09-0.24) | 0.61 | (0.26-1.44) |
| Gender (1 = female) | 2.71 | (0.88-8.33) | 0.68 | (0.26-1.78) |
| Age | 1.00 | (0.96-1.03) | 1.00 | (0.96-1.03) |
| Marital status (1 = unmarried) | 2.27 | (1.36-3.80) | 1.19 | (0.49-2.93) |
| Education | ||||
| Less than high school | 4.43 | (0.84-23.40) | 4.17 | (0.84-20.77) |
| High school graduate | 1.67 | (0.56-5.00) | 3.40 | (1.85-6.25) |
| Some college | 0.81 | (0.21-3.15) | 3.41 | (1.66-7.00) |
| College and greater | reference | reference | reference | reference |
| Chronic diseasesb | 1.02 | (0.17-6.32) | 1.59 | (0.71-3.57) |
a
aPOR: adjusted prevalence odds ratio; 95% CI: 95% confidence interval
b
self-reported history of chronic disease by answering yes to any of the following conditions: heart disease, kidney disease, diabetes, high blood sugar, hypertension, cholesterol, or arthritis; and self-reported history of cancer
c
Interaction term of regular physical activity and BMI P value < .05; the significant interaction term was used to justify the stratified analysis.