Table 1.
Comparison of variables associated with two–score based groups.
| Variables | PSQI < 8 | PSQI ≥ 8 | total | p |
|---|---|---|---|---|
| n = 1017 | n = 630 | n = 1647 | ||
| Age (years) | 49.3 ± 5.92 | 51.8 ± 5.70 | 50.29 ± 5.95 | <0.001 |
| BMI (Kg/m2) | 23.01 ± 2.94 | 23.43 ± 3.27 | 23.18 ± 3.17 | 0.006 |
| Waist–hip ratio (ratio) | 0.82 ± 0.07 | 0.84 ± 0.07 | 0.83 ± 0.07 | <0.001 |
| SBP (mmHg) | 118 ± 15 | 128 ± 18 | 121 ± 16 | <0.001 |
| DBP (mmHg) | 72 ± 9 | 77 ± 10 | 74 ± 10 | <0.001 |
| Pulse pressure (mmHg) | 46 ± 9 | 50 ± 11 | 48 ± 10 | <0.001 |
| Heart rate (beats/min) | 70.10 ± 10.37 | 72.16 ± 11.30 | 71.77 ± 37.99 | <0.001 |
| Triglycerides (mmol/L) | 1.35 ± 1.15 | 1.53 ± 1.14 | 1.47 ± 1.23 | 0.019 |
| Total cholesterol (mmol/L) | 5.25 ± 1.05 | 5.40 ± 1.15 | 5.27 ± 1.17 | <0.001 |
| HDL (mmol/L) | 1.53 ± 0.40 | 1.49 ± 0.36 | 1.52 ± 0.40 | 0.015 |
| LDL (mmol/L) | 2.98 ± 0.78 | 3.18 ± 0.86 | 3.05 ± 0.82 | <0.001 |
| FBG (mmol/l) | 5.31 ± 1.14 | 5.60 ± 1.30 | 5.41 ± 1.20 | <0.001 |
| BaPWV (cm/s) | 1274.9 ± 194.4 | 1447.2 ± 246.0 | 1341.5 ± 231.7 | <0.001 |
| Menopausal status | <0.001 | |||
| Premenopause, n (%) | 416 (80.8%) | 99 (19.2%) | 515 (31.3%) | <0.001 |
| Perimenopause, n (%) | 215 (56.9%) | 163 (43.1%) | 378 (22.9%) | 0.031 |
| Early postmenopause, n (%) | 202 (53.3%) | 177 (46.7%) | 379 (23.0%) | <0.001 |
| Late postmenopause, n (%) | 184 (49.1%) | 191 (50.9%) | 375 (22.8%) | <0.001 |
| Marital status | 0.627 | |||
| Married, n (%) | 1008 (80.0%) | 626 (20.0%) | 1634 (92.1%) | 0.704 |
| Single/Separated, n (%) | 9 (61.7%) | 4 (38.3%) | 13 (7.9%) | 0.787 |
| Divorced/Widowed | ||||
| Education, n (%) | 0.100 | |||
| Illiteracy | 93 (57.8%) | 68 (42.2%) | 161 (9.8%) | 0.273 |
| Primary | 79 (54.9%) | 65 (45.1%) | 144 (8.7%) | 0.057 |
| Junior high | 280 (61.1%) | 178 (38.9%) | 458 (27.8%) | 0.570 |
| Senior high | 269 (60.7%) | 174 (39.3%) | 443 (26.9%) | 0.450 |
| College | 275 (68.6%) | 126 (31.4%) | 401 (24.3%) | 0.002 |
| Postgraduate or above | 21 (52.5%) | 19 (47.5%) | 40 (2.4%) | 0.201 |
| Employment status, n(%) | <0.001 | |||
| Work | 676 (66.7%) | 338 (33.3%) | 1014 (61.6%) | <0.001 |
| Departure | 139 (61.8%) | 86 (38.2%) | 225 (13.7%) | 1.000 |
| Retirement | 202 (49.5%) | 206 (50.5%) | 408 (24.8%) | <0.001 |
| Income (RMB/month), n (%) | <0.001 | |||
| <1000 | 223 (57.3%) | 166 (42.7%) | 389 (23.6%) | 0.046 |
| 1000–3000 | 190 (54.8%) | 157 (45.2%) | 347 (21.1%) | 0.003 |
| 3000–5000 | 258 (64.7%) | 141 (35.3%) | 399 (24.2%) | 0.169 |
| 5000–10000 | 177 (63.9%) | 100 (36.1%) | 277 (16.8%) | 0.419 |
| >10000 | 169 (71.9%) | 66 (28.1%) | 235 (14.3%) | 0.001 |
| Parity, n (%) | <0.001 | |||
| 0 | 29 (80.6%) | 7 (19.4%) | 36 (2.2%) | 0.109 |
| 1–2 | 923 (63.0%) | 542 (37.0%) | 1465 (88.9%) | 0.004 |
| ≥3 | 65 (44.5%) | 81 (55.5%) | 146 (8.9%) | <0.001 |
| History of disease | ||||
| Hypertension, n (%) | 165 (43.2%) | 217 (56.8%) | 382 (23.2%) | <0.001 |
| Diabetes mellitus, n (%) | 93 (42.5%) | 126 (57.5%) | 219 (13.3%) | <0.001 |
Data were expressed as mean ± SD or frequencies. All data were normally distributed. Age, height, BMI, WHR, SBP, DBP, PP, HR, TC didn’t satisfy the homogeneity of variance, and were analyzed by Mann–Whitney U test. Other continuous variables were determined by independent–Samples T tests. Ordered categorical variables were computed by Wilcoxon rank sum test, while unordered two–categorical variables were tested by χ2 tests.