Variables | Total (N = 734) | Poor global sleep quality | P value | |
---|---|---|---|---|
No (N = 436) | Yes (N = 298) | |||
Age in years, median (IQR) | 50.3 (40.2, 58.9) | 48.6 (39.7, 57.9) | 52.7 (41.6, 60.0) | 0.009 |
Sex, N (%) |  |  |  | < 0.001 |
 Male | 414 (56.4) | 268 (61.5) | 146 (49.0) |  |
 Female | 320 (43.6) | 168 (38.5) | 152 (51.0) |  |
Educational level, N (%) | Â | Â | Â | 0.794 |
 Primary school | 67 (9.1) | 38 (8.7) | 29 (9.7) |  |
 Middle and high school | 327 (44.6) | 192 (44.0) | 135 (45.3) |  |
 College and above | 340 (46.3) | 206 (47.2) | 134 (45.0) |  |
Marital status, N (%) | Â | Â | Â | 0.123 |
 Currently unmarried | 69 (9.4) | 35 (8.0) | 34 (11.4) |  |
 Currently married | 665 (90.6) | 401 (92.0) | 264 (88.6) |  |
Occupational status, N (%) | Â | Â | Â | 0.642 |
 Technology | 126 (17.2) | 72 (16.5) | 54 (18.1) |  |
 Management | 134 (18.3) | 84 (19.3) | 50 (16.8) |  |
 Others | 474 (64.6) | 280 (64.2) | 194 (65.1) |  |
Family income per month, N (%) | Â | Â | Â | 0.150 |
 < 10,000 RMB | 251 (34.2) | 140 (32.1) | 111 (37.2) |  |
 ≥ 10,000 RMB | 483 (65.8) | 296 (67.9) | 187 (62.8) |  |
Smoking status, N (%) | Â | Â | Â | 0.590 |
 Never | 527 (71.8) | 307 (70.4) | 220 (73.8) |  |
 Current | 147 (20.0) | 91 (20.9) | 56 (18.8) |  |
 Ever | 60 (8.2) | 38 (8.7) | 22 (7.4) |  |
Drinking status, N (%) | Â | Â | Â | 0.641 |
 Current | 286 (39.0) | 173 (39.7) | 113 (37.9) |  |
 Ever | 20 (2.7) | 10 (2.3) | 10 (3.4) |  |
 Never | 428 (58.3) | 253 (58.0) | 175 (58.7) |  |
BMI in kg/m2, median (IQR) | 23.9 (21.5, 26.3) | 24.2 (21.8, 26.5) | 23.2 (21.1, 26.1) | 0.004 |
Physical activity (METs×min/week), median (IQR) | 2079.0 (1080.0, 3732.0) | 2079.0 (1114.5, 3824.4) | 2085.5 (1044.0, 3657.0) | 0.604 |
Psychological disease history, N (%) | Â | Â | 0.160 | |
 No | 730 (99.5) | 435 (99.8) | 295 (99.0) |  |
 Yes | 4 (0.5) | 1 (0.2) | 3 (1.0) |  |
Self-rated health status, N (%) |  |  |  | < 0.001 |
 Very good | 26 (3.5) | 21 (4.8) | 5 (1.7) |  |
 Good | 273 (37.2) | 180 (41.3) | 93 (31.2) |  |
 Fair | 360 (49.0) | 202 (46.3) | 158 (53.0) |  |
 Poor | 73 (9.9) | 33 (7.6) | 40 (13.4) |  |
 Very poor | 2 (0.3) | 0 (0.0) | 2 (0.7) |  |
Perceived stress score, median (IQR) | 8.0 (4.0, 12.0) | 7.0 (4.0, 11.0) | 9.0 (5.0, 13.0) | < 0.001 |
Sleep quality score, median (IQR) | 5.0 (3.0, 7.0) | 3.0 (2.0, 4.0) | 8.0 (6.0, 10.0) | < 0.001 |
Subjective sleep quality score, median (IQR) | 1.0 (1.0, 2.0) | 1.0 (1.0, 1.0) | 2.0 (1.0, 2.0) | < 0.001 |
Sleep latency score, median (IQR) | 1.0 (0.0, 1.0) | 0.0 (0.0, 1.0) | 1.0 (1.0, 2.0) | < 0.001 |
Sleep duration score, median (IQR) | 1.0 (0.0, 2.0) | 0.0 (0.0, 1.0) | 2.0 (1.0, 3.0) | < 0.001 |
Sleep efficiency score, median (IQR) | 0.0 (0.0, 1.0) | 0.0 (0.0, 0.0) | 1.0 (0.0, 2.0) | < 0.001 |
Sleep disturbances score, median (IQR) | 1.0 (0.0, 1.0) | 0.0 (0.0, 1.0) | 1.0 (1.0, 1.0) | < 0.001 |
Use of sleep medicine score, median (IQR) | 0.0 (0.0, 0.0) | 0.0 (0.0, 0.0) | 0.0 (0.0, 0.0) | < 0.001 |
Daytime dysfunction score, median (IQR) | 1.0 (0.0, 2.0) | 0.0 (0.0, 1.0) | 2.0 (1.0, 3.0) | < 0.001 |
Loneliness score, median (IQR) | 3.0 (3.0, 4.0) | 3.0 (3.0, 4.0) | 3.0 (3.0, 5.0) | < 0.001 |
Loneliness, N (%) | Â | Â | Â | 0.019 |
 No (Loneliness score < 6) | 661 (90.1) | 402 (92.2) | 259 (86.9) |  |
 Yes (Loneliness score ≥ 6) | 73 (9.9) | 34 (7.8) | 39 (13.1) |  |
Depression score, median (IQR) | 4.0 (2.0, 7.0) | 3.0 (1.0, 5.0) | 5.0 (3.0, 8.0) | < 0.001 |
Depressive symptoms, N (%) |  |  |  | < 0.001 |
 No (Depression score < 10) | 656 (89.4) | 415 (95.2) | 241 (80.9) |  |
 Yes (Depression score ≥ 10) | 78 (10.6) | 21 (4.8) | 57 (19.1) |  |