Table 1.
Subject characteristics (n=636)
| Values show the number (percentage) of subjects unless otherwise indicated. 1Median (25, 75 percentile) values. Note that the total number of subjects for each variable may not be 636 due to the missing data | ||
| Sex | Women | 569 (89%) |
| Men | 67 (11%) | |
| Age (years) | 20-29 | 369 (58%) |
| 30-39 | 133 (21%) | |
| 40-49 | 83 (13%) | |
| 50-65 | 48 (8%) | |
| Height (cm) | 159 (155, 163) 1 | |
| Weight (kg) | 52 (48, 58) * | |
| Body mass index (kg/m2) | 20.4 (19.1, 22.3) 1 | |
| Underweight (<18.5) | 89 (14%) | |
| Normal (≥18.5, <25) | 468 (74%) | |
| Overweight (≥25) | 55 (9%) | |
| Smoking | Non-smoker | 589 (93%) |
| Current smoker/Former smoker | 46 (7%) | |
| Alcohol | None | 108 (17%) |
| Occasionally/1-2 days a week | 443 (70%) | |
| ≥3 days a week | 82 (13%) | |
| Marital status | Unmarried/Divorced or bereaved | 443 (70%) |
| Married | 192 (30%) | |
| Children≤6 years old | No | 544 (86%) |
| Yes | 89 (14%) | |
| Duration of employment (month) | 54 (19, 143) 1 | |
| <40 | 134 (21%) | |
| ≥40, <48 | 328 (52%) | |
| ≥48 | 160 (25%) | |
| Position | General duty nurse | 554 (88%) |
| Head nurse/Assistant head nurse | 78 (12%) | |
| Section | Ward | 398 (63%) |
| Outpatient | 105 (17%) | |
| Operating room or intensive care unit | 131 (21%) | |
| Night shift | No | 156 (25%) |
| Yes | 473 (75%) | |
| Weekly working hours (hour) | 42 (40, 48) 1 | |
| <40 | 134 (21%) | |
| 40-47 | 328 (52%) | |
| ≥48 | 160 (25%) | |
| Psychological demands | 36 (33, 40) 1 | |
| Job control | 68 (64, 74) 1 | |
| Supervisor support | 12 (11, 13) 1 | |
| Coworker support | 12 (11, 13) 1 | |
| Physical exertion | 9 (9, 11) 1 | |
| Isometric load | 5 (4, 6) 1 | |
| Job strain index | 0.53 (0.47, 0.60) 1 | |
| Shoe comfort visual analogue scale | 60 (40, 78) 1 | |
| Use of high heel shoes | Never | 291 (46%) |
| Occasionally/1 day a week | 265 (42%) | |
| ≥2 days a week | 76 (12%) | |