Cox proportional hazard model of the association between length of service and risk of alcoholic liver disease*
| Length of service§ | Cases (veterans) | Univariable† | Multivariable‡ | ||||
|---|---|---|---|---|---|---|---|
| HR | 95% CI | p Value | HR | 95% CI | p Value | ||
| Basic training | 73 | 0.92 | 0.73 to 1.16 | 0.487 | 0.81 | 0.64 to 1.02 | 0.070 |
| ≤3 years (postbasic training) | 190 | 1.25 | 1.07 to 1.45 | 0.004 | 1.06 | 0.91 to 1.23 | 0.427 |
| 4–6 years | 118 | 0.89 | 0.74 to 1.07 | 0.209 | 0.77 | 0.64 to 0.92 | 0.006 |
| 7–9 years | 101 | 1.11 | 0.91 to 1.36 | 0.288 | 1.01 | 0.83 to 1.25 | 0.855 |
| 10–12 years | 64 | 0.89 | 0.70 to 1.15 | 0.373 | 0.85 | 0.66 to 1.09 | 0.208 |
| 13–16 years | 42 | 0.80 | 0.59 to 1.09 | 0.152 | 0.76 | 0.56 to 1.04 | 0.088 |
| 17–22 years | 38 | 0.75 | 0.54 to 1.03 | 0.080 | 0.81 | 0.59 to 1.12 | 0.209 |
| Over 22 years | 50 | 0.78 | 0.59 to 1.03 | 0.082 | 0.97 | 0.73 to 1.29 | 0.832 |
*Alcoholic liver disease=K70, 571.0–571.3.
†Compared to all non-veterans. ‡Adjusted for socioeconomic status.
§The categories reflect common lengths of UK military engagement.