Table 2.
Gender-stratified multivariate multinomial logistic regression: Adjusted OR, confidence intervals and significance levels of having 1, 2 or 3 IS.
| Men | Women | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wald χ2 | df | Overall p | 1 versus 0 | 2 versus 0 | 3 versus 0 | Wald χ2 | df | Overall p | 1 versus 0 | 2 versus 0 | 3 versus 0 | |
| Age (years) | ||||||||||||
| 65–69 | 27.46 | 9 | 0.001 | 1 | 1 | 1 | 17.33 | 9 | 0.044 | 1 | 1 | 1 |
| 70–74 | 1.47 [1.16–1.86] | 1.10 [0.83–1.46] | 1.24 [0.86–1.78] | 1.25 [0.98–1.59] | 0.96 [0.75–1.24] | 1.12 [0.86–1.46] | ||||||
| 75–79 | 1.63 [1.25–2.12] | 1.08 [0.79–1.47] | 1.26 [0.84–1.88] | 1.39 [1.06–1.83] | 1.27 [0.96–1.67] | 1.01 [0.75–1.37] | ||||||
| 80+ | 2.18 [1.53–3.10] | 1.61 [1.07–2.41] | 1.42 [0.84–2.40] | 1.52 [1.06–2.18] | 1.13 [0.77–1.65] | 1.34 [0.91–1.98] | ||||||
| Education | ||||||||||||
| High | 16.75 | 6 | 0.010 | 1 | 1 | 1 | ||||||
| Medium | 0.73 [0.55–0.96] | 0.83 [0.61–1.12] | 0.81 [0.59–1.12] | |||||||||
| Low | 0.78 [0.56–1.09] | 1.18 [0.83–1.68] | 1.14 [0.79–1.65] | |||||||||
| BMI (kg/m2) | ||||||||||||
| <25 | 23.03 | 6 | 0.0008 | 1 | 1 | 1 | ||||||
| 25–29 | 1.03 [0.83–1.28] | 0.92 [0.73–1.15] | 1.19 [0.94–1.50] | |||||||||
| ≥30 | 0.92 [0.68–1.24] | 0.71 [0.52–0.98] | 0.55 [0.39–0.78] | |||||||||
| Alcohol intake | ||||||||||||
| <12 | 18.53 | 6 | 0.005 | 1 | 1 | 1 | ||||||
| 12–36 g/day | 1.13 [0.88–1.46] | 1.31 [1.01–1.71] | 0.96 [0.72–1.28] | |||||||||
| >36 g/day | 0.73 [0.38–1.43] | 0.37 [0.16–0.86] | 0.22 [0.09–0.58] | |||||||||
| Mediterranean diet, Yes vs No | 4.52 | 3 | 0.21 | 1.16 [0.95–1.42] | 0.95 [0.75–1.20] | 0.93 [0.69–1.26] | 6.22 | 3 | 0.10 | 0.80 [0.66–0.98] | 0.81 [0.66–0.99] | 0.80 [0.64–1.00] |
| Current HRT, Yes vs No | 5.80 | 3 | 0.12 | 0.95 [0.72–1.24] | 0.76 [0.57–1.02] | 0.73 [0.54–0.99] | ||||||
| CES-D ≥ 16 Yes vs No | 37.19 | 3 | <0.0001 | 1.44 [1.04–2.01] | 2.04 [1.42–2.91] | 3.44 [2.26–5.22] | 53.55 | 3 | <0.0001 | 1.33 [1.04–1.69] | 1.84 [1.45–2.35] | 2.43 [1.89–3.13] |
| Chronic diseases | ||||||||||||
| 0 | 11.78 | 6 | 0.067 | 1 | 1 | 1 | 17.01 | 6 | 0.009 | 1 | 1 | 1 |
| 1 | 1.16 [0.88–1.52] | 1.61 [1.13–2.27] | 1.50 [0.95–2.39] | 1.09 [0.83–1.42] | 1.04 [0.78–1.38] | 1.46 [1.06–2.00] | ||||||
| 2+ | 1.15 [0.88–1.49] | 1.58 [1.13–2.20] | 1.73 [1.12–2.67] | 1.20 [0.92–1.57] | 1.35 [1.02–1.79] | 1.82 [1.33–2.49] | ||||||
| Sleep treatment, Yes vs No | 51.65 | 3 | <0.0001 | 1.12 [0.80–1.56] | 2.25 [1.60–3.15] | 3.13 [2.12–4.63] | 73.32 | 3 | <0.0001 | 1.22 [0.95–1.58] | 1.96 [1.53–2.51] | 2.67 [2.07–3.44] |
| Loud snoring, Yes vs No | 6.36 | 3 | 0.095 | 1.38 [1.06–1.79] | 1.25 [0.92–1.69] | 1.09 [0.74–1.60] | ||||||
| Sleepiness, Yes vs No | 80.83 | 3 | <0.0001 | 2.36 [1.75–3.18] | 4.04 [2.95–5.53] | 3.52 [2.44–5.10] | 15.98 | 3 | 0.001 | 1.68 [1.17–2.42] | 1.91 [1.34–2.74] | 2.02 [1.40–2.91] |
| Nightmares, Yes vs No | 24.17 | 3 | <0.0001 | 2.91 [1.18–7.17] | 6.27 [2.57–15.28] | 7.31 [2.84–18.80] | 29.88 | 3 | <0.0001 | 1.99 [1.08–3.67] | 2.97 [1.67–5.30] | 4.28 [2.42–7.55] |
Center is not shown.