Table 2. Social demographic characteristics and health-related quality of life measures of the 26,269 participants in Weifang, China (2018-2019).
| Variable | Total sample (N=26,269) | Sample 1 (n=13,078) | Sample 2 (n=13,191) | Chi-square (df) | P value | ||||||
| Basic information | |||||||||||
| Sex, n (%) | 0.29 (1) | .60 | |||||||||
| Male | 13,573 (51.7) | 6779 (51.8) | 6794 (51.5) | ||||||||
| Female | 12,696 (48.3) | 6299 (48.2) | 6397 (48.5) | ||||||||
| Age (years), mean (SD) | 55.9 (14.9) | 56.0 (14.8) | 55.8 (14.9) | 0.90 (1) | .37 | ||||||
| BMI, n (%) | 0.64 (3) | .42 | |||||||||
| Normal weight | 11,498 (43.8) | 5674 (43.4) | 5824 (44.2) | ||||||||
| Underweight | 1445 (5.5) | 723 (5.5) | 722 (5.5) | ||||||||
| Overweight | 9783 (37.2) | 4940 (37.8) | 4843 (36.7) | ||||||||
| Obesity | 3543 (13.5) | 1741 (13.3) | 1802 (13.7) | ||||||||
| Education, n (%) | 0.14 (3) | .71 | |||||||||
| Illiterate | 4156 (15.8) | 2094 (16.0) | 2062 (15.6) | ||||||||
| Primary school | 7192 (27.4) | 3512 (26.9) | 3680 (27.9) | ||||||||
| Junior middle school | 9881 (37.6) | 4952 (37.9) | 4929 (37.4) | ||||||||
| Senior middle school or more | 5040 (19.2) | 2520 (19.3) | 2520 (19.1) | ||||||||
| Marital status, n (%) | 0.01 (2) | .93 | |||||||||
| Married | 22,934 (87.3) | 11,430 (87.4) | 11,504 (87.2) | ||||||||
| Unmarried | 840 (3.2) | 389 (3.0) | 451 (3.4) | ||||||||
| Divorced/widowed | 2495 (9.5) | 1259 (9.6) | 1236 (9.4) | ||||||||
| Average income (¥)a, n (%) | 1.89 (3) | .17 | |||||||||
| <5000 | 10,378 (39.5) | 5189 (39.7) | 5189 (39.3) | ||||||||
| 5000‐9999 | 4721 (18.0) | 2374 (18.2) | 2347 (17.8) | ||||||||
| 10,000‐29,999 | 6664 (25.4) | 3281 (25.1) | 3383 (25.7) | ||||||||
| 30,000 or more | 4506 (17.2) | 2234 (17.1) | 2272 (17.2) | ||||||||
| Residence, n (%) | 0.29 (1) | .59 | |||||||||
| Rural | 12,584 (47.9) | 6243 (47.7) | 6341 (48.1) | ||||||||
| Urban | 13,685 (52.1) | 6835 (52.3) | 6850 (51.9) | ||||||||
| Physical activity, n (%) | 1.74 (1) | .19 | |||||||||
| No | 3813 (14.5) | 1936 (14.8) | 1877 (14.2) | ||||||||
| Yes | 22,456 (85.5) | 11,142 (85.2) | 11,314 (85.8) | ||||||||
| Smoking, n (%) | 0.02 (1) | .88 | |||||||||
| No | 20,617 (78.5) | 10,259 (78.4) | 10,358 (78.5) | ||||||||
| Yes | 5652 (21.5) | 2819 (21.6) | 2833 (21.5) | ||||||||
| Drinking, n (%) | 2.03 (1) | .15 | |||||||||
| No | 19,834 (75.5) | 9924 (75.9) | 9910 (75.1) | ||||||||
| Yes | 6435 (24.5) | 3154 (24.1) | 3281 (24.9) | ||||||||
| Self-reported disease, n (%) | 0.07 (1) | .79 | |||||||||
| No | 18,319 (69.7) | 9130 (69.8) | 9189 (69.7) | ||||||||
| Yes | 7950 (30.3) | 3948 (30.2) | 4002 (30.3) | ||||||||
| Self-reported injury, n (%) | 0.92 (1) | .34 | |||||||||
| No | 25,661 (97.7) | 12,787 (97.8) | 12,874 (97.6) | ||||||||
| Yes | 608 (2.3) | 291 (2.2) | 317 (2.4) | ||||||||
| Health-related quality of life | |||||||||||
| General health status, n (%) | 0.65 (4) | .42 | |||||||||
| Excellent | 5773 (21.9) | 2825 (21.6) | 2948 (22.4) | ||||||||
| Very good | 12,890 (49.1) | 6440 (49.2) | 6450 (48.9) | ||||||||
| Good | 5480 (20.9) | 2768 (21.2) | 2712 (20.6) | ||||||||
| Fair | 2001 (7.6) | 988 (7.6) | 1013 (7.7) | ||||||||
| Poor | 125 (0.5) | 57 (0.4) | 68 (0.5) | ||||||||
| Days of poor physical health | 0.17 (1) | .68 | |||||||||
| Mean (SD) | 1.0 (4.8) | 1.1 (4.9) | 1.0 (4.7) | ||||||||
| Median (IQR) | 0 (0-0) | 0 (0-0) | 0 (0-0) | ||||||||
| Days of poor mental health | 0.14 (1) | .75 | |||||||||
| Mean (SD) | 0.5 (3.1) | 0.5 (3.1) | 0.5 (3.1) | ||||||||
| Median (IQR) | 0 (0-0) | 0 (0-0) | 0 (0-0) | ||||||||
| Days of usual activities limitation, n (%) | 2.07 (3) | .15 | |||||||||
| 0 | 25,583 (97.4) | 12,711 (97.2) | 12,872 (97.6) | ||||||||
| 1‐6 | 112 (0.8) | 126 (1.0) | 97 (0.7) | ||||||||
| 7‐14 | 104 (0.4) | 54 (0.4) | 50 (0.4) | ||||||||
| ≥15 | 359 (1.4) | 187 (1.4) | 172 (1.3) | ||||||||
| Days of self-care limitation, n (%) | 4.38 (3) | .04 | |||||||||
| 0 | 25,887 (98.6) | 12,868 (98.4) | 13,019 (98.7) | ||||||||
| 1‐6 | 132 (0.5) | 70 (0.5) | 62 (0.5) | ||||||||
| 7‐14 | 63 (0.2) | 35 (0.3) | 28 (0.2) | ||||||||
| ≥15 | 187 (0.7) | 105 (0.8) | 82 (0.6) | ||||||||
a
A currency exchange rate of ¥1=US $0.14 is applicable.