Table 2.
Baseline characteristics of participants (n=230 930) by incidence of injury. Values are numbers (percentages) unless stated otherwise
| Characteristics | No injury (n=220 689) | ≥1 injury (n=10 241) |
|---|---|---|
| Mean (SD) age (years) | 52.4 (7.0) | 53.3 (7.2) |
| Sex: | ||
| Women | 115 103 (52.2) | 5127 (50.1) |
| Men | 105 586 (47.8) | 5114 (49.9) |
| Ethnicity: | ||
| White | 209 393 (94.9) | 9910 (96.8) |
| Black | 3431 (1.6) | 82 (0.8) |
| South Asian | 3207 (1.5) | 96 (0.9) |
| Other | 4658 (2.1) | 153 (1.5) |
| Smoking status: | ||
| Never | 128 444 (58.2) | 5631 (55.0) |
| Former | 69 622 (31.5) | 3318 (32.4) |
| Current | 22 623 (10.3) | 1292 (12.6) |
| Baseline cardiovascular disease | 6131 (2.8) | 395 (3.9) |
| Median (interquartile range) Townsend deprivation index | −2.20 (−3.68, 0.26) | −2.01 (−3.55, 0.63) |
| Longstanding illness | 52 832 (23.9) | 2941 (28.7) |
| Physical activity: | ||
| Sedentary | 25 808 (11.7) | 1089 (10.6) |
| Moderately active | 157 117 (71.2) | 6903 (67.4) |
| Very active | 37 764 (17.1) | 2249 (22.0) |
| Previous cancer | 12 153 (5.5) | 635 (6.2) |
| Diabetes | 7384 (3.3) | 417 (4.1) |
| Hypertension | 103 876 (47.1) | 5129 (50.1) |
| Depression | 45 885 (20.8) | 1975 (19.3) |
| Body mass index (kg/m2): | ||
| <18.5 | 1025 (0.5) | 52 (0.5) |
| 18.5-24.9 | 76 493 (34.7) | 3577 (34.9) |
| 25.0-29.9 | 93 138 (42.2) | 4286 (41.9) |
| ≥30.0 | 50 033 (22.7) | 2326 (22.7) |
| Alcohol drinker status: | ||
| Never | 6708 (3.0) | 284 (2.8) |
| Former | 5709 (2.6) | 294 (2.9) |
| Current | 208 272 (94.4) | 9663 (94.4) |
All variables globally significantly different between groups at P<0.001, except cancer (P=0.003), alcohol drinker status (P=0.07), and body mass index category (P=0.83).