Table 2.
Noise level (dB) | Any insomnia symptom | Difficulties falling asleep | Frequently waking up during the night | Waking up too early in the morning | Nonrestorative sleep | Short sleep duration (< 7 hr) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Model 1a | ||||||||||||
≤ 45 (reference) | ||||||||||||
45.1–50 | 0.95 (0.84, 1.07) | 1.01 (0.86, 1.20) | 0.98 (0.86, 1.10) | 1.03 (0.90, 1.19) | 0.97 (0.86, 1.11) | 0.99 (0.86, 1.14) | ||||||
50.1–55 | 0.99 (0.84, 1.16) | 1.04 (0.83, 1.30) | 1.03 (0.88, 1.22) | 0.88 (0.72, 1.06) | 0.96 (0.81, 1.14) | 0.95 (0.79, 1.15) | ||||||
> 55 | 1.16 (0.95, 1.46) | 0.83 (0.61, 1.13) | 1.00 (0.81, 1.23) | 1.10(0.87, 1.39) | 1.15 (0.92, 1.43) | 1.11 (0.86, 1.43) | ||||||
Model 2b | ||||||||||||
≤ 45 (reference) | ||||||||||||
45.1–50 | 0.95 (0.84, 1.07) | 1.02 (0.86, 1.21) | 0.98 (0.86, 1.11) | 1.04 (0.90, 1.20) | 0.98 (0.86, 1.12) | 1.00 (0.86, 1.15) | ||||||
50.1–55 | 0.97 (0.83, 1.14) | 1.02 (0.81, 1.28) | 1.02 (0.86, 1.20) | 0.85 (0.69, 1.03) | 0.96 (0.80, 1.14) | 0.98 (0.81, 1.18) | ||||||
> 55 | 1.15 (0.93, 1.42) | 0.81 (0.59, 1.12) | 1.01 (0.81, 1.25) | 1.11 (0.87, 1.41) | 1.15 (0.92, 1.44) | 1.14 (0.88, 1.48) | ||||||
Model 3c | ||||||||||||
≤ 45 (reference) | ||||||||||||
45.1–50 | 0.95 (0.84, 1.08) | 1.06 (0.88, 1.27) | 0.97 (0.85, 1.10) | 1.04 (0.89, 1.21) | 0.99 (0.86, 1.14) | 0.98 (0.85, 1.14) | ||||||
50.1–55 | 1.00 (0.84, 1.19) | 1.05 (0.82, 1.34) | 1.02 (0.85, 1.22) | 0.85 (0.69, 1.05) | 1.01 (0.84, 1.23) | 0.99 (0.81, 1.22) | ||||||
> 55 | 1.32 (1.05, 1.65) | 0.83 (0.59, 1.17) | 1.12 (0.88, 1.41) | 1.24 (0.96, 1.61) | 1.29 (1.01, 1.65) | 1.12 (0.86, 1.47) | ||||||
aCrude model. bModel adjusted for age, sex, occupational status, and residence size. cModel adjusted for age, sex, occupational status, residence size, marital status, chronic disease, trait anxiety, and neighborhood socioeconomic disadvantage and population density. |