Table 3. Risk of Exertional Rhabdomyolysis among Black U.S. Army Soldiers.
| Characteristic | Hazard Ratio (95% CI) | P Value |
|---|---|---|
| Sickle cell trait | ||
| Negative | Reference | |
| Positive | 1.54 (1.12–2.12) | 0.008 |
|
| ||
| Sex | ||
| Male | Reference | |
| Female | 0.51 (0.38–0.67) | <0.001 |
|
| ||
| Age category | ||
| 17–23 yr | Reference | |
| 24–28 yr | 1.10 (0.80–1.49) | 0.56 |
| 29–35 yr | 1.27 (0.91–1.77) | 0.16 |
| ≥36 yr | 1.57 (1.06–2.32) | 0.02 |
|
| ||
| Modified BMI category* | ||
| <25.0 | Reference | |
| 25.0–29.9 | 1.21 (0.95–1.54) | 0.13 |
| ≥30.0 | 1.39 (1.04–1.86) | 0.03 |
|
| ||
| APFT score | ||
| <270 or no score | Reference | |
| ≥270 | 1.13 (0.87–1.47) | 0.37 |
|
| ||
| Tobacco use in previous 6 mo | ||
| No | Reference | |
| Yes | 1.54 (1.23–1.94) | <0.001 |
|
| ||
| Statin prescription in previous 2 mo | ||
| No | Reference | |
| Yes | 2.89 (1.51–5.55) | 0.001 |
|
| ||
| Antipsychotic-agent prescription in previous 2 mo | ||
| No | Reference | |
| Yes | 3.02 (1.34–6.82) | 0.008 |
|
| ||
| Stimulant prescription in previous 2 mo | ||
| No | Reference | |
| Yes | 1.63 (0.41–6.59) | 0.49 |
*
Modified BMI indicates that all participants with a BMI of 25 or less (normal and underweight) were included with those with unknown BMI to create the reference category.