Variables | Any insomnia symptoms | Insomnia disorder |
Observation | 10 718 | 2430 |
Male | 0.44 (0.31 to 0.62)** | 0.56 (0.37 to 0.85)* |
Age (year), mean±SD | 1.02 (1.01 to 1.04)** | 1.01 (1.00 to 1.04)* |
Hans | 1.87 (0.92 to 3.77) | 1.88 (0.85 to 4.16) |
Education (Ref.: senior high school or higher) | ||
Illiteracy | 0.66 (0.39 to 1.13) | 0.91 (0.47 to 1.80) |
Elementary | 0.88 (0.56 to 1.39) | 1.07 (0.58 to 1.97) |
Middle school | 1.22 (0.81 to 1.83) | 1.61 (0.92 to 2.84) |
Married status (Ref.: others) | ||
Unmarried | 0.20 (0.03 to 1.51) | 0.42 (0.05 to 3.43) |
Married | 1.04 (0.62 to 1.76) | 1.38 (0.71 to 2.68) |
Monthly income (Ref.: ¥7001-) | ||
≤ ¥1000 | 1.11 (0.58 to 2.11) | 1.13 (0.52 to 2.44) |
¥1001 | 1.57 (0.88 to 2.79) | 1.45 (0.72 to 2.92) |
Living alone | 0.98 (0.54 to 1.78) | 0.96 (0.47 to 1.99) |
Rural region | 0.45 (0.32 to 0.62)** | 0.41 (0.27 to 0.63)** |
Chronic disease | 1.11 (0.84 to 1.48) | 0.90 (0.64 to 1.28) |
AIS score | 1.23 (1.20 to 1.26)** | 1.13 (1.08 to 1.19)** |
Constant | 0.002** | 0.003** |
R2 | 0.158 | 0.078 |
*P<0.01, **P<0.001.
AIS, Athens Insomnia Scale; aOR, adjusted OR; Ref., reference.