Table 5 Univariate associations between injury riska and questionnaire variables
From: Injury rates and injury risk factors among federal bureau of investigation new agent trainees
Variable Category | Variable | Strata | Men | Women | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Â | Â | Â | N | Injured(%) | Hazard Ratios(95%CI)from CoxRegressions | p-value(from WaldStatistic) | N | Injured(%) | Hazard Ratios(95%CI) fromCox Regressions | p-value(from WaldStatistic) |
Tobacco Use | Smoked 100 Cigarettes in Lifetime | No | 352 | 36.9 | 1.00 | Referent | 90 | 41.1 | 1.00 | Referent |
| Â | Â | Yes | 74 | 25.7 | 0.63 (0.40-1.03) | 0.07 | 15 | 46.7 | 1.17 (0.52-2.61) | 0.71 |
| Â | Age Smoked First Cigarette | NeverSmoked | 244 | 41.4 | 1.00 | Referent | 64 | 35.9 | 1.00 | Referent |
| Â | Â | 6-17 years | 116 | 26.7 | 0.56 (0.37-0.84) | <0.01 | 23 | 52.2 | 1.65 (0.82-3.32) | 0.16 |
|  |  | ≥18 years | 66 | 25.8 | 0.56 (0.34-0.94) | 0.03 | 18 | 50.0 | 1.39 (0.65-3.01) | 0.40 |
| Â | Smoked in Last 30 Days | No | 413 | 34.9 | 1.00 | Referent | 102 | 42.2 | 1.00 | Referent |
| Â | Â | Yes | 13 | 38.5 | 1.04 (0.42-2.56) | 0.92 | 3 | 33.3 | 0.69 (0.09-4.97) | 0.71 |
| Â | Smokeless Tobacco Use Last 30 Days | No | 402 | 35.1 | 1.00 | Referent | 104 | 42.3 | 1.00 | Referent |
| Â | Â | Yes | 24 | 33.3 | 0.92 (0.45-1.88) | 0.82 | 1 | 0.0 | ----- | ----- |
Physical Activity | Self Rating of Physical Activity | Less Active | 6 | 83.3 | 4.60 (1.88-11.26) | <0.01 | 3 | 66.7 | 2.18 (0.53-9.06) | 0.28 |
| Â | Â | About the same | 30 | 26.7 | 0.75 (0.37-1.52) | 0.42 | 12 | 33.3 | 0.69 (0.25-1.94) | 0.48 |
| Â | Â | More Active | 390 | 34.9 | 1.00 | Referent | 90 | 42.2 | 1.00 | Referent |
|  | Frequency of Aerobic Exercise in Last 2 Months | ≤ 1 time/week | 2 | 100.0 | 5.96 (1.44-24.69) | 0.01 | 0 | --- | ----- | ----- |
| Â | Â | 2-4 times/week | 264 | 31.4 | 0.75 (0.54-1.03) | 0.08 | 56 | 44.6 | 1.14 (0.63-2.07) | 0.67 |
|  |  | ≥5 times/week | 160 | 40.0 | 1.00 | Referent | 49 | 38.8 | 1.00 | Referent |
| Â | Duration of Aerobic Exercise Last 2 Months | 0-30 minutes | 84 | 34.5 | 0.73 (0.45-1.19) | 0.02 | 9 | 44.4 | 0.89 (0.29-2.70) | 0.83 |
| Â | Â | 31-60 minutes | 257 | 32.3 | 0.70 (0.48-1.03) | 0.07 | 68 | 38.2 | 0.77 (0.40-1.45) | 0.40 |
|  |  | ≥61 minutes | 85 | 43.5 | 1.00 | Referent | 28 | 50.0 | 1.00 | Referent |
|  | Frequency of Weight Training in Last 2 Months | ≤ 1 time/week | 104 | 40.4 | 1.40 (0.78-2.52) | 0.26 | 24 | 41.7 | 0.90 (0.25-3.28) | 0.88 |
| Â | Â | 2-4 times/week | 275 | 33.5 | 1.06 (0.61-1.83) | 0.84 | 74 | 41.9 | 0.88 (0.27-2.89) | 0.84 |
|  |  | ≥5 times/week | 47 | 31.9 | 1.00 | Referent | 7 | 42.9 | 1.00 | Referent |
| Â | Duration of Weight Training in Last 2 Months | 0-30 minutes | 123 | 33.3 | 0.80 (0.49-1.31) | 0.38 | 42 | 40.5 | 0.46 (0.19-1.10) | 0.08 |
| Â | Â | 31-60 minutes | 241 | 34.0 | 0.78 (0.50-1.22) | 0.28 | 53 | 37.7 | 0.38 (0.16-0.90) | 0.03 |
|  |  | ≥61 minutes | 62 | 41.9 | 1.00 | Referent | 10 | 70.0 | 1.00 | Referent |
|  | Frequency of Playing Sports Last 2 Months | ≤ 1 time/week | 376 | 35.4 | 0.61 (0.09-4.36) | 0.62 | 91 | 40.7 | 0.76 (0.34-1.71) | 0.51 |
| Â | Â | 2-4 times/week | 48 | 31.3 | 0.50 (0.07-3.82) | 0.51 | 14 | 50.0 | 1.00 | Referent |
|  |  | ≥5 times/week | 2 | 50.0 | 1.00 | Referent | 0 | --- | ----- | ----- |
| Â | Duration of Sports in Last 30 Days | 0-30 minutes | 253 | 36.8 | 1.01 (0.64-1.59) | 0.97 | 59 | 42.4 | 0.85 (0.37-1.97) | 0.71 |
| Â | Â | 31-60 minutes | 110 | 30.0 | 0.79 (0.46-1.35) | 0.39 | 32 | 37.5 | 0.71 (0.28-1.80) | 0.48 |
|  |  | ≥61 minutes | 63 | 36.5 | 1.00 | Referent | 14 | 50.0 | 1.00 | Referent |
Prior Injury | Prior Lower Limb Injury | No | 167 | 29.3 | 1.00 | Referent | 40 | 42.5 | 1.00 | Referent |
| Â | Â | Yes | 259 | 38.6 | 1.45 (1.03-2.04) | 0.03 | 65 | 41.5 | 1.07 (0.59-1.97) | 0.82 |
|  | Lower Limb Injury Prevented Normal Physical Activity for ≥1 week | No Injury | 167 | 29.3 | 1.00 | Referent | 40 | 42.5 | 1.00 | Referent |
| Â | Â | No | 41 | 34.1 | 1.17 (0.65-2.12) | 0.62 | 10 | 30.0 | 0.73 (0.22-2.50) | 0.62 |
| Â | Â | Yes | 218 | 39.4 | 1.51 (1.06-2.14) | 0.02 | 55 | 43.6 | 1.14 (0.61-2.12) | 0.68 |
| Â | Returned to Normal Physical Activity Since Lower Limb Injury | No Injury | 168 | 29.8 | 1.00 | Referent | 40 | 42.5 | 1.00 | Referent |
| Â | Â | No | 14 | 64.3 | 2.97 (1.46-6.05) | <0.01 | 4 | 50.0 | 1.29 (0.30-5.61) | 0.73 |
| Â | Â | Yes | 244 | 36.9 | 1.35 (0.95-1.91) | 0.09 | 61 | 41.0 | 1.06 (0.57-1.96) | 0.86 |
| Â | Injured Upper Limb | No | 248 | 31.0 | 1.00 | Referent | 73 | 41.1 | 1.00 | Referent |
| Â | Â | Yes | 178 | 40.4 | 1.38 (1.00-1.88) | 0.05 | 32 | 43.8 | 1.04 (0.55-1.97) | 0.90 |
|  | Upper Limb Injury Prevented Normal Physical Activity for ≥1 Week | No Injury | 248 | 31.0 | 1.00 | Referent | 73 | 41.1 | 1.00 | Referent |
| Â | Â | No | 34 | 35.3 | 1.13 (0.62-2.08) | 0.70 | 9 | 33.3 | 0.88 (0.27-2.88) | 0.83 |
| Â | Â | Yes | 144 | 41.7 | 1.43 (1.02-2.00) | 0.04 | 23 | 47.8 | 1.10 (0.55-2.20) | 0.79 |
| Â | Returned to Normal Physical Activity Since Upper Limb Injury | No Injury | 247 | 30.8 | 1.00 | Referent | 73 | 41.1 | 1.09 (0.58-2.05) | 0.97 |
| Â | Â | No | 11 | 72.7 | 2.93 (1.41-6.08) | <0.01 | 1 | 0.0 | ----- | ----- |
| Â | Â | Yes | 168 | 38.7 | 1.31 (0.94-1.83) | 0.11 | 31 | 45.2 | 1.00 | Referent |
Pain Limiting Activity | Have Foot Pain Limiting Activity at Times | No | 363 | 32.5 | 1.00 | Referent | 81 | 39.5 | 1.00 | Referent |
| Â | Â | Yes | 63 | 49.2 | 1.64 (1.10-2.44) | 0.01 | 24 | 50.0 | 1.46 (0.75-2.84) | 0.27 |
| Â | Have Knee Pain Limiting Activity at Times | No | 313 | 31.3 | 1.00 | Referent | 82 | 41.5 | 1.00 | Referent |
| Â | Â | Yes | 113 | 45.1 | 1.67 (1.19-2.34) | <0.01 | 23 | 43.5 | 1.24 (0.61-2.51) | 0.55 |
| Â | Have Back Pain Limiting Activity at Times | No | 341 | 32.8 | 1.00 | Referent | 84 | 35.7 | 1.00 | Referent |
| Â | Â | Yes | 85 | 43.5 | 1.33 (0.92-1.93) | 0.13 | 21 | 66.7 | 2.33 (1.23-4.40) | <0.01 |
Menstrual History | Age of Menarche | 8-11 Years | Â | Â | Â | Â | 9 | 22.2 | 0.43 (0.10-1.77) | 0.24 |
| Â | Â | 12-14 Years | Â | Â | Â | Â | 76 | 46.1 | 1.00 | Referent |
|  |  | ≥15 Years |  |  |  |  | 19 | 31.6 | 0.61 (0.26-1.45) | 0.26 |
| Â | Menstrual Periods Last Year | 1-10 | Â | Â | Â | Â | 20 | 40.0 | 0.85 (0.40-1.84) | 0.69 |
| Â | Â | 11-13 | Â | Â | Â | Â | 84 | 41.7 | 1.00 | Referent |
|  | Gone ≥6 Months without Menstrual Cycle | No |  |  |  |  | 102 | 40.2 | 1.00 | Referent |
| Â | Â | Yes | Â | Â | Â | Â | 2 | 100.0 | 2.84(0.69-11.77) | 0.15 |
| Â | Used Birth Control in Past 12 Months | No | Â | Â | Â | Â | 47 | 48.9 | 1.52 (0.84-2.77) | 0.17 |
| Â | Â | Yes | Â | Â | Â | Â | 57 | 35.1 | 1.00 | Referent |
| Â | Used Hormonal Therapy in Past 12 Months | No | Â | Â | Â | Â | 97 | 41.2 | 0.88 (0.27-2.85) | 0.83 |
| Â | Â | Yes | Â | Â | Â | Â | 7 | 42.9 | 1.00 | Referent |
| Â | Ever Pregnancy | No | Â | Â | Â | Â | 90 | 40.0 | 1.00 | Referent |
| Â | Â | Yes | Â | Â | Â | Â | 12 | 41.7 | 1.02 (0.40-2.61) | 0.96 |