Table 5.
Stepwise Ordinal Logistic Regression Model Reflecting Odds Ratios (OR) and 95% Confidence Intervals (95% CI) of Associations between 100% Increase in Dietary Variables and Daytime Sleepiness
| Variable | Category | OR (95% CI) | P |
|---|---|---|---|
| COVARIATES FORCED INTO THE MODEL | |||
| Number of Foods | 1.02 (1.01, 1.04) | 0.004 | |
| Energy (kcal) per 100 | 1.01 (1.00, 1.02) | 0.20 | |
| Income | < $20,000 | 1.04 (0.82, 1.33) | 0.73 |
| $20-$25,000 | 0.96 (0.71, 1.29) | 0.77 | |
| $25-$35,000 | 0.96 (0.75, 1.24) | 0.78 | |
| $35-$45,000 | 0.88 (0.68, 1.14) | 0.32 | |
| $45-$55,000 | 0.92 (0.68, 1.24) | 0.58 | |
| $55-$65,000 | 0.94 (0.66, 1.33) | 0.73 | |
| $65-$75,000 | 1.00 (0.75, 1.33) | 0.98 | |
| >$75,000 | Reference | ||
| Education | Less Than High School |
0.96 (0.76, 1.22) | 0.74 |
| High School | 1.05 (0.85, 1.30) | 0.63 | |
| Some College | 1.24 (1.02, 1.51) | 0.04 | |
| College Graduate | Reference | ||
| Diet versus Usual |
More | 0.86 (0.63, 1.17) | 0.33 |
| Less | 1.16 (0.95, 1.43) | 0.14 | |
| Race/Ethnicity | White | Reference | |
| Hispanic | 0.46 (0.38, 0.56) | <.001 | |
| Black | 0.64 (0.53, 0.78) | <.001 | |
| Other | 0.89 (0.61, 1.29) | 0.54 | |
| Male Gender | 0.85 (0.72, 1.01) | 0.07 | |
| BMI | 1.02 (1.00, 1.03) | 0.01 | |
| Exercise | 1.00 (1.00, 1.00) | 0.98 | |
| Age | 0.98 (0.98, 0.99) | <.001 | |
| Special Diet | 1.59 (1.03, 2.46) | 0.04 | |
| Weight loss diet | 0.79 (0.50, 1.24) | 0.31 | |
| Low fat/Low cholesterol diet | 0.56 (0.35, 0.91) | 0.02 | |
| Low salt/ sodium diet | 0.94 (0.51, 1.75) | 0.86 | |
| Diabetic Diet | 0.75 (0.40, 1.42) | 0.38 | |
| Alcohol (log) | 0.95 (0.90, 1.00) | 0.06 | |
| Depression | Several Days | 0.17 (0.11, 0.27) | <.001 |
| Nearly Half the Days | 0.38 (0.24, 0.61) | <.001 | |
| All the Time | 0.43 (0.24, 0.77) | 0.004 | |
| Not at All | Reference | ||
| CONTRIBUTORS OF UNIQUE VARIANCE | |||
| Moisture (log) | 1.20 (0.97, 1.48) | 0.09 | |
| Theobromine (log) | 1.04 (1.00, 1.08) | 0.08 | |
| Potassium (log) | 0.70 (0.55, 0.89) | 0.004 | |
| Total Plain Water Drank Yesterday (log) | 0.97 (0.94, 1.00) | 0.07 | |