Table 3.
Multivariable linear regression models predicting mean daily sleep duration in minutes (n = 340)
| Model 1 |
Model 2 |
Model 3 |
Model 4 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate | 95% CI | Estimate | 95% CI | Estimate | 95% CI | Estimate | 95% CI | |||||
| Intercept | 449.8 | 438.3 | 461.3 | 442.8 | 421.1 | 464.5 | 441.6 | 419.7 | 463.5 | 441.8 | 411.2 | 472.5 |
| Race/ethnicity | ||||||||||||
| NH White | 0(ref) | 0(ref) | 0(ref) | 0(ref) | ||||||||
| NH Afr/Crb Immigrant | -64.4 | -81.0 | -47.9 | -50.9 | -69.2 | -32.5 | -37.7 | -57.8 | -17.6 | -39.6 | -60.9 | -18.3 |
| Hispanic | -33.9 | -62.8 | -5.0 | -22.8 | -52.5 | 6.9 | -13.6 | -43.6 | 16.5 | -20.0 | -50.9 | 10.8 |
| Other | -38.4 | -61.0 | -15.9 | -30.6 | -53.8 | -7.4 | -23.3 | -46.8 | 0.1 | -25.7 | -49.7 | -1.7 |
| Gender | ||||||||||||
| Male | -28.2 | -47.2 | -9.2 | -29.1 | -48.0 | -10.3 | -25.6 | -44.3 | -7.0 | -31.0 | -52.8 | -9.1 |
| Female | 0(ref) | 0(ref) | 0(ref) | 0(ref) | ||||||||
| Age (years) | -0.3 | -0.8 | 0.3 | -0.2 | -0.8 | 0.3 | -0.1 | -0.7 | 0.4 | -0.2 | -0.8 | 0.4 |
| Education | ||||||||||||
| Less than high school | -6.5 | -35.5 | 22.6 | -12.6 | -41.3 | 16.0 | -20.6 | -51.3 | 10.2 | |||
| High school of GED | -1.1 | -25.2 | 22.9 | -3.4 | -27.3 | 20.5 | -10.2 | -36.2 | 15.7 | |||
| Some college | 5.4 | -17.4 | 28.1 | 3.1 | -19.3 | 25.5 | 0.0 | -22.8 | 22.9 | |||
| College or more | 0(ref) | 0(ref) | 0(ref) | |||||||||
| Household Income (per $1,000) | 0.8 | 0.2 | 1.5 | 0.9 | 0.3 | 1.5 | 1.0 | 0.3 | 1.7 | |||
| Currently smokes | 3.0 | -16.0 | 22.0 | 5.3 | -14.1 | 24.7 | ||||||
| Worked night shift in past 4weeks | -14.9 | -31.4 | 1.6 | -14.8 | -32.2 | 2.5 | ||||||
| Work hours per week (hours) | -1.1 | -1.8 | -0.5 | -1.1 | -1.7 | -0.4 | ||||||
| Worked overtime in past 4weeks | -11.1 | -25.8 | 3.6 | |||||||||
| Worked multiple shifts | 5.3 | -24.9 | 35.4 | |||||||||
| Job strain category | ||||||||||||
| Passive | 6.0 | -16.8 | 28.9 | |||||||||
| Active | 0.8 | -19.7 | 21.3 | |||||||||
| High Strain | 16.8 | -6.2 | 39.7 | |||||||||
| Low Strain | 0(ref) | |||||||||||
| Occupational category | ||||||||||||
| Healthcare Practitioner (RN or LPN) | 0.0 | -24.6 | 24.6 | |||||||||
| Healthcare support (CNA) | 0(ref) | |||||||||||
| Office and administrative | -1.0 | -31.9 | 29.9 | |||||||||
| Food Service and maintenance | 14.0 | -8.0 | 35.9 | |||||||||
| Primary wage earner in household | 11.3 | -4.7 | 27.3 | |||||||||
| Often preoccupied with work while at home | -12.4 | -38.5 | 13.8 | |||||||||
| Child under 19years in household | -4.5 | -20.2 | 11.1 | |||||||||
CI, confidence interval; GED, graduate equivalency degree; RN, registered nurse; LPN, licensed practical nurse; CNA, certified nursing assistant.