Linear regression results showing sex difference in insomnia self assessment inventory score before and after adjusting for social roles and SES
| Parameter | Model 1 (baseline) | Model 2 (baseline model +marital status) | Model 3 (baseline model + employment status) | Model 4 (baseline model + no. of kids in the family) | Model 5 (baseline model + educational level) | Model 6 (baseline model + household income) | Model 7 (full model) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| estimate | SE | estimate | SE | estimate | SE | estimate | SE | estimate | SE | estimate | SE | estimate | SE | |
| *p<0.05. **p<0.001. | ||||||||||||||
| Intercept | 22.73 | (0.24) | 22.90 | (0.24) | 23.10 | (0.25) | 22.51 | (0.24) | 22.11 | (0.28) | 22.73 | (0.25) | 22.55 | (0.31) |
| Age | 0.04** | (0.00) | 0.01** | (0.00) | 0.03** | (0.00) | 0.04** | (0.00) | 0.04** | (0.00) | 0.03** | (0.00) | 0.01** | (0.00) |
| Self assessed health (base—fair) | ||||||||||||||
| Healthy | −3.82** | (0.08) | −3.83** | (0.08) | −3.79 | (0.08) | −3.83** | (0.08) | −3.85** | (0.08) | −3.83** | (0.08) | −3.82** | (0.08) |
| Unhealthy | 5.11** | (0.12) | 5.25** | (0.12) | 5.13 | (0.13) | 5.13** | (0.12) | 5.13** | (0.12) | 5.12** | (0.12) | 5.18** | (0.13) |
| Shift working (base—non shift) | ||||||||||||||
| Shift | 0.77** | (0.11) | 0.64** | (0.11) | 0.75 | (0.11) | 0.75** | (0.11) | 0.75** | (0.11) | 0.77** | (0.11) | 0.73** | (0.11) |
| Sex (base—male) | ||||||||||||||
| Female | 1.25** | (0.07) | 1.15** | (0.07) | 1.24** | (0.07) | 1.24** | (0.07) | 1.29** | (0.07) | 1.25** | (0.06) | 1.22** | (0.08) |
| Marital status (base—single) | ||||||||||||||
| Married | 1.09** | (0.10) | 1.05** | (0.12) | ||||||||||
| Divorced/separate | 1.61** | (0.22) | 1.53** | (0.23) | ||||||||||
| Widowed | 1.29** | (0.20) | 1.23** | (0.20) | ||||||||||
| Employment (base—employed) | ||||||||||||||
| Unemployment | 1.28** | (0.17) | 1.46** | (0.17) | ||||||||||
| Disability/retired/others | 0.28* | (0.13) | 0.53** | (0.14) | ||||||||||
| Homemaker | 0.16 | (0.11) | 0.14 | (0.11) | ||||||||||
| Student | −0.97** | (0.13) | −0.56** | (0.14) | ||||||||||
| Number of children in the household | 0.25** | (0.04) | 0.13* | (0.05) | ||||||||||
| Educational level (base—<9 years) | ||||||||||||||
| Some high school | 0.25* | (0.12) | −0.05 | (0.12) | ||||||||||
| High school graduate | 0.44** | (0.12) | 0.31* | (0.12) | ||||||||||
| Some college or higher | 0.50** | (0.13) | 0.53** | (0.14) | ||||||||||
| Income level (base—very low income) | ||||||||||||||
| Low income | −0.05 | (0.12) | −0.11 | (0.12) | ||||||||||
| Middle income | 0.04 | (0.13) | −0.12 | (0.14) | ||||||||||
| High income | 0.38 | (0.28) | 0.10 | (0.29) | ||||||||||