Factors associated with productivity loss at 4 months post injury and unadjusted and adjusted relative risks
| <Median loss, n (%) (n = 81) | ≥Median loss, n (%) (n = 81) | Unadjusted relative risk (95% CI) | Adjusted relative risk (95% CI) | Adjusted relative riska (95% CI) | ||||
|---|---|---|---|---|---|---|---|---|
| Study centre | ||||||||
| Nottingham | 23 (57.5) | 17 (42.5) | 1 | 1 | 1 | |||
| Bristol | 10 (41.7) | 14 (58.3) | 1.37 | (0.84 to 2.25) | 1.30 | (0.80 to 2.13) | 1.30 | (0.81 to 2.09) |
| Swansea | 23 (48.9) | 24 (51.1) | 1.2 | (0.76 to 1.90) | 1.06 | (0.68 to 1.66) | 1.10 | (0.69 to 1.75) |
| Surrey | 9 (47.4) | 10 (52.6) | 1.24 | (0.71 to 2.17) | 0.96 | (0.53 to 1.74) | 0.92 | (0.52 to 1.63) |
| Sex | ||||||||
| Females | 26 (47.3) | 29 (52.7) | 1 | 1 | ||||
| Males | 39 (52.0) | 36 (48.0) | 0.91 | (0.64 to 1.29) | 0.91 | (0.63 to 1.32) | ||
| Age, years | ||||||||
| 16–35 | 29 (69.0) | 13 (31.0) | 1 | 1 | ||||
| 36–55 | 27 (44.3) | 34 (55.7) | 1.8 | (1.09 to 2.99) | 1.84 | (1.10 to 3.08) | ||
| 56–65 | 9 (33.3) | 18 (66.7) | 2.15 | (1.27 to 3.65) | 1.93 | (1.08 to 3.45) | ||
| Ethnicity | ||||||||
| White UK | 60 (48.8) | 63 (51.2) | 1 | 1 | ||||
| Other | 5 (71.4) | 2 (28.6) | 0.56 | (0.17 to 1.83) | 0.49 | (0.20 to 1.20) | ||
| Deprivation, tertiles | ||||||||
| 1 least deprived | 26 (44.8) | 32 (55.2) | 1 | 1 | ||||
| 2 | 22 (53.7) | 19 (46.3) | 0.84 | (0.56 to 1.26) | 0.87 | (0.55 to 1.38) | ||
| 3 most deprived | 17 (54.8) | 14 (45.2) | 0.82 | (0.52 to 1.29) | 0.98 | (0.60 to 1.59) | ||
| Employment status | ||||||||
| Paid employment | 57 (50.9) | 55 (49.1) | 1 | 1 | ||||
| Self-employed | 8 (44.4) | 10 (55.6) | 1.13 | (0.72 to 1.78) | 0.78 | (0.51 to 1.19) | ||
| Long-term illness | ||||||||
| No | 64 (52.5) | 58 (47.5) | 1 | 1 | 1 | |||
| Yes | 1 (12.5) | 7 (87.5) | 1.84 | (1.33 to 2.54) | 1.86 | (1.13 to 3.04) | 2.12 | (1.38 to 3.27) |
| Place of injury | ||||||||
| Home | 10 (47.6) | 11 (52.4) | 1 | 1 | ||||
| Work | 7 (41.2) | 10 (58.8) | 1.12 | (0.63 to 1.99) | 1.35 | (0.74 to 2.46) | ||
| Road | 9 (37.5) | 15 (62.5) | 1.19 | (0.71 to 2.00) | 1.26 | (0.72 to 2.19) | ||
| Sports grounds | 12 (48.0) | 13 (52.0) | 0.99 | (0.57 to 1.73) | 1.16 | (0.67 to 2.00) | ||
| Other | 27 (62.8) | 16 (37.2) | 0.71 | (0.40 to 1.25) | 0.69 | (0.39 to 1.20) | ||
| Type of injury | ||||||||
| Other | 23 (57.5) | 17 (42.5) | 1 | 1 | 1 | |||
| Upper limb injury | 12 (33.3) | 24 (66.7) | 1.57 | (1.02 to 2.41) | 1.62 | (0.95 to 2.74) | 1.64 | (1.06 to 2.53) |
| Lower limb injury | 30 (55.6) | 24 (44.4) | 1.05 | (0.65 to 1.67) | 1.13 | (0.64 to 2.00) | 1.00 | (0.63 to 1.60) |
| Severity | ||||||||
| Minor | 20 (51.3) | 19 (48.7) | 1 | 1 | ||||
| Moderate to severe | 45 (49.5) | 46 (50.5) | 1.04 | (0.71 to 1.52) | 0.89 | (0.58 to 1.37) | ||
| Injury intent | ||||||||
| Unintentional | 59 (50.0) | 59 (50.0) | 1 | 1 | ||||
| Other | 6 (50.0) | 6 (50.0) | 1 | (0.55 to 1.82) | 1.19 | (0.68 to 2.07) | ||
↵a Stepwise model.