Table 1.
Differences in characteristics of participants relative to Sleep Disturbance and Daytime Fatigue
| Variable | Category | Sleep Disturbance |
Daytime Fatigue |
||||
|---|---|---|---|---|---|---|---|
| No | Yes | p | No | Yes | p | ||
| Age | Mean ± Standard Deviation | 45.7 ± 17.6 | 44.7 ± 17.6 | < 0.0001 | 45.5 ± 17.4 | 45.1 ± 18.2 | 0.1051 |
| Sex | % Male | 50.32% | 41.53% | < 0.0001 | 51.28% | 39.19% | < 0.0001 |
| Race/Ethnicity | % White | 66.66% | 68.54% | 0.0013 | 66.43% | 69.08% | < 0.0001 |
| % Black | 8.99% | 9.43% | 8.79% | 10.10% | |||
| % Other | 24.35% | 22.04% | 24.78% | 20.82% | |||
| Education | % < High School | 12.21% | 16.25% | < 0.0001 | 12.09% | 16.11% | < 0.0001 |
| % High School Grad | 27.67% | 32.36% | 27.71% | 31.52% | |||
| % Some College | 26.41% | 28.46% | 26.27% | 28.79% | |||
| % College Grad | 33.72% | 22.93% | 33.93% | 23.59% | |||
| Income | % < $10,000 | 4.85% | 9.55% | < 0.0001 | 4.85% | 8.99% | < 0.0001 |
| % $10-$15,000 | 4.91% | 8.45% | 4.73% | 8.61% | |||
| % $15-$20,000 | 6.68% | 9.95% | 6.61% | 9.79% | |||
| % $20-$25,000 | 8.71% | 11.06% | 8.63% | 11.03% | |||
| % $25-$35,000 | 12.19% | 13.37% | 12.13% | 13.43% | |||
| % $35-$50,000 | 15.56% | 14.71% | 15.48% | 15.09% | |||
| % $50-$75,000 | 17.91% | 14.01% | 17.85% | 14.78% | |||
| % ≥ $75,000 | 29.19% | 18.90% | 29.72% | 18.29% | |||
| Employment | % Employed for Wages | 54.54% | 41.10% | < 0.0001 | 53.74% | 45.74% | < 0.0001 |
| % Self Employed | 9.40% | 7.88% | 9.76% | 6.83% | |||
| % Out of Work > 1yr | 1.59% | 3.67% | 1.69% | 3.10% | |||
| % Out of Work < 1yr | 2.53% | 5.49% | 2.92% | 3.83% | |||
| % Home Maker | 8.21% | 9.12% | 8.23% | 8.92% | |||
| % Student | 4.46% | 4.90% | 4.72% | 3.91% | |||
| % Retired | 16.15% | 13.91% | 16.16% | 13.77% | |||
| % Unable to Work | 3.12% | 13.93% | 2.79% | 13.90% | |||
| Depression | Mean ± Standard Deviation | 0.664 ± 1.906 | 3.860 ± 4.955 | < 0.0001 | 0.597 ± 1.711 | 3.738 ± 5.019 | < 0.0001 |
| Time Since Last Medical Checkup | Never | 1.88% | 2.16% | < 0.0001 | 1.84% | 2.20% | < 0.0001 |
| Within Past Year | 66.81% | 63.78% | 66.58% | 64.78% | |||
| Within Past 2 years | 14.38% | 12.98% | 14.35% | 13.42% | |||
| Within Past 5 years | 9.11% | 10.02% | 9.28% | 9.31% | |||
| Over 5 Years | 7.83% | 11.06% | 7.95% | 10.29% | |||
| General Health | Excellent | 23.13% | 11.81% | < 0.0001 | 23.73% | 11.06% | < 0.0001 |
| Very Good | 34.19% | 24.24% | 35.07% | 22.55% | |||
| Good | 29.56% | 31.91% | 29.44% | 31.77% | |||
| Poor | 10.41% | 20.10% | 9.77% | 21.11% | |||
| Very Poor | 2.71% | 11.94% | 1.98% | 13.52% | |||
| Mental Health | Mean ± Standard Deviation | 2.21 ± 5.72 | 9.00 ± 11.30 | < 0.0001 | 2.02 ± 5.32 | 8.90 ± 11.53 | < 0.0001 |
| Physical Health | Mean ± Standard Deviation | 2.65 ± 6.68 | 7.84 ± 11.20 | < 0.0001 | 2.32 ± 6.11 | 8.42 ± 11.69 | < 0.0001 |
| Alcoholic Drinks/Month | Mean ± Standard Deviation | 37.4 ± 148.9 | 44.2 ± 161.5 | 0.0047 | 38.9 ± 150.0 | 37.9 ± 157.4 | 0.6366 |
| Smoking Status | Current Everyday | 12.09% | 24.00% | < 0.0001 | 12.12% | 22.54% | < 0.0001 |
| Current Some Days | 4.89% | 7.10% | 5.00% | 6.37% | |||
| Former | 23.91% | 24.47% | 24.01% | 23.93% | |||
| Never | 59.11% | 44.44% | 58.87% | 47.16% | |||
| Body Mass Index | Mean ± Standard Deviation | 27.1 ± 5.6 | 28.1 ± 6.9 | < 0.0001 | 27.0 ± 5.5 | 28.4 ± 7.2 | < 0.0001 |
| Sunlight Exposure | Mean ± Standard Deviation | 62.7 ± 7.6 | 62.4 ± 7.8 | 0.0062 | 62.7 ± 7.6 | 62.3 ± 7.8 | < 0.0001 |
| Mean High Temperature | Mean ± Standard Deviation | 69.7 ± 9.0 | 69.8 ± 9.1 | 0.2536 | 69.7 ± 9.0 | 69.8 ± 9.2 | 0.1935 |
| Mean Day Length | Mean ± Standard Deviation | 577 ± 34 | 578 ± 34 | 0.0238 | 577 ± 34 | 578 ± 34 | 0.0001 |