Noise sensitivity associated with nonrestorative sleep in Chinese adults: a cross-sectional study

Li, Sha; Fong, Daniel Yee Tak; Wong, Janet Yuen Ha; McPherson, Bradley; Lau, Esther Yuet Ying; Huang, Lixi; Ip, Mary Sau Man

doi:10.1186/s12889-021-10667-2

BMC Public Health

Table 5 Structured multiphase regression of NRSS in Chinese adults (n = 489)

From: Noise sensitivity associated with nonrestorative sleep in Chinese adults: a cross-sectional study

Variable	Estimate	95% CI	p-value
Phase 1 (R² = 6.8%, adjusted R² = 4.3%)
Age	0.01	−0.13, 0.12	0.912
Sex (Ref: Male)
Female	−1.35	−3.85, 1.15	0.290
Marital status (Ref: Single)
Married/Cohabiting	2.85	−0.10, 5.79	0.058
Separated/Divorced/Widowed	5.98	−0.37, 12.33	0.065
Educational level (Ref: Primary school or below)
Secondary	−1.28	−6.60, 4.05	0.637
Bachelor or above	−2.75	−8.32, 2.83	0.334
Occupation (Ref: Working)
Not working	−2.02	−5.73, 1.69	0.285
Retired	−4.60	−10.41, 1.22	0.121
Students	−1.82	−6.51, 2.88	0.447
Family income	0.52	0.07, 0.98	0.023^*
Season (Ref: Spring)
Summer	−2.91	−5.65, −0.17	0.038^*
Autumn	−4.04	−8.01, − 0.07	0.046^*
Winter	−0.95	−4.40, 2.49	0.587
Phase 2 (R² = 18.3%, adjusted R² = 14.1%)
Exercise	1.12	0.41, 1.82	0.002^**
Smoking (Ref: Never smoking)
Quitted smoking	−2.69	−6.88, 1.50	0.208
Current smoking	−2.47	−5.96, 1.03	0.166
Alcohol (Ref: Never alcohol)
Quitted alcohol	−3.25	−7.64, 1.14	0.146
Current alcohol	−1.49	−3.90, 0.91	0.223
Cola	0.17	−0.91, 1.25	0.761
Soda	0.46	−0.54, 1.46	0.362
Coffee	0.36	−0.31, 1.02	0.289
Tea	0.14	−0.67, 0.95	0.736
Social support	0.73	0.50, 0.96	< 0.001^**
Nocturnal Noise	−0.04	−0.24, 0.17	0.736
Phase 3 (R² = 54.5%, adjusted R² = 51.7%)
Somatic symptoms	−0.95	−1.21, − 0.69	< 0.001^**
Stress	− 0.73	− 0.94, − 0.52	< 0.001^**
Anxiety	− 0.35	− 0.70, 0.01	0.055
Depression	− 0.61	− 0.90, − 0.31	< 0.001^**
Phase 4 (R² = 55.0%, adjusted R² = 52.2%)
Noise sensitivity	−0.08	− 0.15, − 0.01	0.023^*
Phase 5 (R² = 56.1%, adjusted R² = 52.6%)
Latency	−0.15	− 0.47, 0.17	0.359
Efficiency	−0.20	−0.85, 0.46	0.555
Time in bed	−0.01	−0.32, 0.31	0.975
Total sleep time	0.02	−0.30, 0.35	0.890
Wake after sleep onset	−0.03	−0.31, 0.26	0.826
Awakenings	−0.07	−0.27, 0.14	0.518
Average Awakenings	0.62	−0.31, 1.56	0.192

NRSS nonrestorative sleep scale, CI confidence interval
^*: p-value < 0.05; ^**: p-value < 0.01

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