Table 3.
Prevalence and prevalence ratios of short (≤6 h) sleep duration in day, early morning, evening, night and rotating shift subsamples differentiated by sex, age, education and living companion (s).
| Day shift | Early shift | Evening shift | Night shift | Rotating shift | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| % | PR (95% CI) | % | PR (95% CI) | % | PR (95% CI) | % | PR (95% CI) | % | PR (95% CI) | |
| Sex | ||||||||||
| Male | 29.5 | 1 | 51.2 | 1 | 27.0 | 1 | 57.1 | 1 | 38.7 | 1 |
| Female | 24.2 | 0.82 (0.77–0.87)** | 39.6 | 0.77 (0.39–1.15)* | 23.8 | 0.88 (0.47–1.29) | 45.5 | 0.80 (0.18–1.41) | 30.5 | 0.79 (0.66–0.92)** |
| Age | ||||||||||
| < 30 years | 18.7 | 1 | 41.3 | 1 | 20.1 | 1 | 39.1 | 1 | 26.3 | 1 |
| 30–50 years | 25.4 | 1.36 (1.29–1.43)** | 41.6 | 1.01 (0.52–1.49) | 21.6 | 1.07 (0.56–1.59) | 50.6 | 1.29 (0.36–2.23) | 34.4 | 1.31 (1.15–1.47)** |
| > 50 years | 34.7 | 1.86 (1.78–1.93)** | 52.0 | 1.26 (0.76–1.76) | 35.2 | 1.75 (1.23–2.28)* | 51.4 | 1.31 (0.36–2.27) | 43.3 | 1.65 (1.47–1.82)** |
| Education | ||||||||||
| Academic | 23.2 | 1 | 31.3 | 1 | 23.9 | 1 | 36.4 | 1 | 29.2 | 1 |
| Vocational | 28.7 | 1.24 (1.18–1.30)** | 38.0 | 1.21 (0.65–1.78) | 20.2 | 0.85 (0.26–1.43) | 46.1 | 1.27 (0.50–2.03) | 34.7 | 1.19 (1.02–1.35)* |
| Secondary | 35.1 | 1.51 (1.45–1.58)** | 56.6 | 1.81 (1.34–2.27)** | 29.3 | 1.23 (0.75–1.71)* | 62.9 | 1.73 (0.93–2.53)** | 40.0 | 1.37 (1.22–1.52)** |
| Elementary $ | 43.4 | 1.87 (1.47–2.27)** | 48.0 | 1.64 (0.85–2.44) | ||||||
| Living companion(s) | ||||||||||
| Alone | 31.7 | 1 | 44.9 | 1 | 24.7 | 1 | 50.0 | 1 | 40.8 | 1 |
| With partner | 23.0 | 0.73 (0.64–0.81)** | 40.3 | 0.89 (0.30–1.50) | 22.6 | 0.91 (0.29–1.54) | 42.9 | 0.86 (−0.10–1.81) | 27.1 | 0.66 (0.45–0.88) |
| Alone with kid(s)$ | 33.9 | 1.07 (0.95–1.19) | 52.2 | 1.16 (0.22–2.11) | 40.7 | 1.65 (0.74–2.55) | 44.8 | 1.10 (0.76–1.43) | ||
| With partner and kid(s) | 26.9 | 0.85 (0.77–0.93)* | 45.5 | 1.01 (0.44–1.59) | 27.8 | 1.13 (0.53–1.72) | 52.1 | 1.04 (0.15–1.94) | 37.6 | 0.92 (0.72–1.12) |
| Other(s) | 23.7 | 0.75 (0.65–0.84)** | 50.0 | 1.11 (0.46–1.76) | 20.4 | 0.83 (0.15–1.51) | 47.8 | 0.96 (−0.17–2.08) | 30.7 | 0.75 (0.53–0.97) |
$
Low number of cases in the category of the early, evening and/or night shift subgroups (n < 20). *p < 0.05, ** p < 0.01. PR = prevalence ratio (calculated against indicator). Binominal logistic regression results in Supplementary Table S2.1.