Table 3 Prevalence of insomnia and associations derived by logistic regression analysis
From: Insomnia and its correlates in a representative sample of the Greek population
Variable | Insomnia, N (%) | OR (95% CI) Crude | OR (95% CI) Adjusted |
|---|---|---|---|
Sex | Â | Â | Â |
   Men | 94(19.5) | 1.00 | 1.00 |
   Women | 160(30.7) | 1.83* (1.37-2.45) | 1.48‡ (1.03-2.10) |
Age (years) | Â | Â | Â |
   18-24 | 9(7.8) | 1.00 | 1.00 |
   25-34 | 18(9.7) | 1.26(0.55-2.93) | 1.16(0.48-2.81) |
   35-44 | 33(18.3) | 2.64‡ (1.21-5.75) | 2.09(0.90-4.83) |
   45-54 | 37(24.5) | 3.82*(1.76-8.29) | 2.68‡ (1.17-6.14) |
   55-64 | 55(36.7) | 6.82*(3.19-14.54) | 3.63†(1.59-8.28) |
   > 65 | 102(45.5) | 9.84*(4.74-20.42) | 4.06†(1.79-9.17) |
Family status | Â | Â | Â |
   Married | 179(27.7) | 1.00 | 1.00 |
   Single | 23(9.4) | 0.27* (0.17-0.43) | 0.65(0.36-1.17) |
   Divorced/Widowed | 52(45.2) | 2.15* (1.44-3.23) | 1.04(0.62-1.74) |
Socioeconomic status | Â | Â | Â |
   A/B-C1 | 30(17.9) | 1.00 |  |
   C2 | 116(25.1) | 1.54(0.99-2.41) | 1.40(0.88-2.24) |
   D/E | 108(28.8) | 1.86†(1.18-2.93) | 1.67‡ (1.03-2.69) |
Level of education | Â | Â | Â |
   Low | 140(41.9) | 1.00 | 1.00 |
   Middle | 73(17.3) | 0.29* (0.21-0.40) | 0.59‡ (0.38-0.91) |
   High | 41(16.5) | 0.27* (0.18-0.41) | 0.58‡ (0.36-0.94) |
Alcohol use | Â | Â | Â |
   No | 154(34.0) | 1.00 | 1.00 |
   Yes | 100(18.1) | 0.43* (0.32-0.58) | 0.56 (0.41-1.19) |
Smoking | Â | Â | Â |
   No | 165(28.8) | 1.00 | 1.00 |
   Yes | 89(20.6) | 0.64†(0.48-0.86) | 0.96(0.65-1.41) |
Physical activity | Â | Â | Â |
   No | 84(17.9) | 1.00 | 1.00 |
   Yes | 153(32.0) | 2.16* (1.59-2.92) | 1.42‡ (1.01-2.03) |
Weight status | Â | Â | Â |
   Normal (BMI < 25) | 86(20.7) | 1.00 | 1.00 |
   Overweight (25≤BMI < 30) | 100(24.8) | 1.26(0.92-1.75) | 0.78(0.52-1.16) |
   Obese (BMI≥30) | 60(37.3) | 2.28* (1.53-3.39) | 1.06(0.66-1.72) |
Chronic disease | Â | Â | Â |
   No | 100(15.5) | 1.00 | 1.00 |
   Yes | 154(42.8) | 4.07* (3.02-5.49) | 1.58‡ (1.06-2.34) |
Hospitalizations in the past 12 months | Â | Â | Â |
   None | 201(22.8) | 1.00 | 1.00 |
   One or more | 50(43.5) | 2.60* (1.74-3.88) | 1.90‡ (1.18-3.05) |
Mental health summary score (SF-36) | Â | 0.95*(0.94-0.96) | 0.96*(0.95-0.97) |