Table 3 Odds ratios (OR) and 95% confidence intervals of sociodemographic factors and mental health factors in relation to sleep duration

 18-39y

NA

NA

NA

NA

 40-59y

1.17 (1.05–1.29)

1.31 (1.17–1.47)

0.79 (0.60–1.02)

0.62 (0.47–0.82)

 60-85y

1.05 (0.74–1.49)

1.30 (0.90–1.87)

1.50 (0.85–2.64)

0.96 (0.51–1.82)

 Male

NA

NA

NA

NA

 Female

0.95 (0.85–1.06)

0.96 (0.84–1.09)

1.06 (0.83–1.36)

0.93 (0.66–1.30)

  ≤ 9 years

0.87 (0.71–1.07)

0.88 (0.72–1.08)

1.79 (1.28–2.52)

1.77 (1.26–2.48)

 10–15 years

NA

NA

NA

NA

  ≥ 16 years

0.97 (0.87–1.07)

0.95 (0.86–1.06)

0.82 (0.61–1.09)

0.83 (0.62–1.11)

 Single

1.04 (0.93–1.15)

1.10 (0.98–1.23)

1.16 (0.90–1.48)

1.20 (0.92–1.23)

 Married

NA

NA

NA

NA

 Divorced

1.61 (1.01–2.54)

1.62 (1.00–2.61)

1.13 (0.41–3.16)

0.89 (0.31–2.54)

  ≤ 6000

1.07 (0.95–1.19)

1.13 (1.01–1.27) *

1.30 (1.01–1.68)

1.09 (0.83–1.43)

  > 6000

NA

NA

NA

NA

 Ex- or current smokers

1.23 (1.09–1.39) *

1.12 (0.98–1.29)

1.12 (0.86–1.46)

1.10 (0.83–1.47)

 Never smoke

NA

NA

NA

NA

 Ex- or current drinkers

1.31 (1.15–1.50) *

1.18 (1.02–1.37) ^*

0.89 (0.66–1.19)

0.83 (0.61–1.14)

 Never drink

NA

NA

NA

NA

  ≥ 24

1.20 (1.06–1.37) ^*

1.24 (1.09–1.41)^*

0.92 (0.67–1.27)

0.87 (0.63–1.20)

  < 24

NA

NA

NA

NA

 Have depressive symptoms

1.90 (1.70–2.12) ^*

1.75 (1.52–2.02) ^*

0.72 (0.54–0.95) ^*

0.88 (0.61–1.26)

 No depressive symptoms

NA

NA

NA

NA

 Have anxiety symptoms

1.69 (1.50–1.89) ^*

1.15 (0.99–1.33)

0.67 (0.50–0.88) ^*

0.76 (0.53–1.09)

 No anxiety symptoms

NA

NA

NA

NA