Sociodemographic characteristics of enlisted women in the US Army, 1984–94
| Knee related disability discharge | |||||
|---|---|---|---|---|---|
| Cases* (n=702) | Controls (n=2106) | ||||
| n | % | n | % | Unadjusted OR† | |
| *Cases: knee related disability discharge from the Army, 1984–94. | |||||
| †OR, odds ratio. | |||||
| ‡Quintiles based on frequency distribution observed for all controls included in the data library. | |||||
| §HS, high school; GED, Graduate Equivalency Degree. | |||||
| ¶CMF, career management field. Support = support/administration; infantry = infantry/gun crews; e-m repair = electrical/mechanical equipment repair; service = service/supply; communications = communications/intelligence; electrical = electrical equipment repair; technical = technical/allied specialties; “non-occupational” includes trainees, prisoners, and patients. | |||||
| **Available for 521 cases and 1580 controls. | |||||
| Age quintiles‡ | |||||
| 17–20 years | 119 | 16.95 | 341 | 16.21 | 1.0 |
| 21–22 years | 119 | 16.95 | 395 | 18.77 | 0.86 |
| 23–25 years | 133 | 18.95 | 483 | 22.96 | 0.79 |
| 26–32 years | 206 | 29.34 | 568 | 27.00 | 1.04 |
| 33–60 years | 125 | 17.81 | 317 | 15.07 | 1.13 |
| Race | |||||
| Unknown | 1 | 0.14 | 3 | 0.14 | Not calculated |
| White | 469 | 66.81 | 1050 | 50.0 | 1.0 |
| Black | 198 | 28.21 | 916 | 43.49 | 0.59 |
| Other | 34 | 4.84 | 137 | 6.36 | 0.84 |
| Marital status | |||||
| Unknown | 9 | 1.28 | 21 | 1.0 | Not calculated |
| Single | 393 | 55.98 | 976 | 46.34 | 1.0 |
| Married | 250 | 35.61 | 944 | 44.82 | 0.66 |
| Divorced/separated | 50 | 7.12 | 165 | 7.83 | 0.75 |
| Education | |||||
| ≤4 HS§ | 1 | 0.14 | 10 | 0.47 | 0.3 |
| HS or GED§ | 585 | 83.0 | 1755 | 83.0 | 1.0 |
| ≥1 year college | 115 | 16.0 | 340 | 16.0 | 1.02 |
| Alternate, unknown | 1 | 0.14 | 1 | 0.05 | Not calculated |
| Pay grade | |||||
| E1–E3 | 281 | 40.0 | 637 | 30.3 | 1.0 |
| E4–E6 | 367 | 52.3 | 1200 | 57.0 | 0.67 |
| E7–E9 | 54 | 7.7 | 269 | 12.8 | 0.34 |
| Duration of service‡ | |||||
| 1–15 months | 201 | 28.63 | 467 | 22.17 | 1.0 |
| 16–32 months | 162 | 23.08 | 459 | 21.79 | 0.82 |
| 33–59 months | 115 | 16.38 | 479 | 22.74 | 0.56 |
| 60–119 months | 157 | 22.36 | 459 | 21.79 | 0.80 |
| 120–414 months | 67 | 9.54 | 242 | 11.49 | 0.64 |
| CMF¶ | |||||
| Support | 192 | 27.39 | 781 | 37.12 | 1.0 |
| Infantry | 5 | 0.71 | 24 | 1.14 | 0.85 |
| E-M repair | 85 | 12.13 | 179 | 8.51 | 1.93 |
| Service | 116 | 16.55 | 283 | 13.45 | 1.64 |
| Communications | 102 | 14.55 | 274 | 13.02 | 1.54 |
| Health care | 116 | 16.55 | 377 | 17.92 | 1.25 |
| Electrical | 52 | 7.42 | 113 | 5.37 | 1.95 |
| Technical | 25 | 3.57 | 54 | 2.57 | 1.89 |
| Craftsworkers | 8 | 1.14 | 18 | 0.86 | 1.81 |
| Non-occupational | 0 | 0 | 1 | 0.05 | Not calculated |
| Physical tasks | |||||
| Lift/carry | |||||
| None | 26 | 4.96 | 80 | 4.98 | 1.0 |
| 1–25 pounds | 122 | 23.28 | 458 | 28.54 | 0.76 |
| 26–50 pounds | 59 | 11.26 | 213 | 13.27 | 0.79 |
| 51–75 pounds | 78 | 14.89 | 231 | 14.39 | 0.96 |
| 76–100 pounds | 157 | 29.96 | 435 | 27.10 | 1.03 |
| 101–125 pounds | 48 | 9.16 | 101 | 6.29 | 1.35 |
| 126–150 pounds | 0 | 0 | 0 | 0 | Not calculated |
| 151–175 pounds | 24 | 4.58 | 69 | 4.30 | 0.99 |
| Raises 267 pounds | 10 | 1.91 | 18 | 1.12 | 1.58 |
| Push/pull** | |||||
| None | 389 | 74.24 | 1229 | 76.57 | 1.0 |
| <130 pounds | 77 | 14.69 | 223 | 13.89 | 1.05 |
| ≥130 pounds | 39 | 7.44 | 107 | 6.67 | 1.11 |
| Foot/pound force | 19 | 3.63 | 46 | 2.87 | 1.26 |
| Uses a wrench | 0 | 0 | 0 | 0 | Not calculated |
| Kneeling** | |||||
| None | 305 | 58.54 | 844 | 53.42 | 1.0 |
| While shovelling, lifting | 54 | 10.36 | 143 | 9.05 | 1.03 |
| While filing | 14 | 2.69 | 34 | 2.15 | 1.16 |
| For prolonged periods | 148 | 28.41 | 559 | 35.38 | 0.75 |
| Sitting** | |||||
| None | 118 | 22.52 | 466 | 29.03 | 1.0 |
| Any | 416 | 77.48 | 1139 | 70.97 | 0.71 |
| Standing** | |||||
| None | 251 | 47.90 | 838 | 52.21 | 1.0 |
| Any | 273 | 52.10 | 767 | 47.79 | 0.84 |