Table 2

Risk factors and 95% CI for repeat diagnoses of C trachomatis infections among active duty US army personnel, 1994–July 1999

FemaleMale
UnadjustedAdjusted†UnadjustedAdjusted†
HR*95% CIHR95% CIHR95% CIHR95% CI
*HR = hazard ratio, CI = confidence interval.
†After adjustment for all other terms in table.
‡Grades E1–E4 approx $11 520 to $17 820; grades E5–O4, $18 168 to $40 716 per annum (1998 US$).
Age group
30+1.001.001.001.00
25–291.731.02–2.931.490.89–2.571.500.95–2.361.220.76–1.97
20–242.351.44–3.821.791.04–3.081.771.16–2.681.070.64–1.79
<201.560.94–2.601.160.65–2.071.000.95–2.360.540.28–1.03
Race
White1.001.001.001.00
Black1.100.93–1.301.130.94–1.321.751.38–2.221.821.43–2.31
Marital status
Married1.001.001.001.00
Single1.100.92–1.311.050.86–1.271.531.21–1.941.491.13–1.96
Military rank‡
SGT-MAJ (E5–O4)1.001.001.001.00
PVT-CPL (E1–E4)1.661.24–2.241.471.04–3.081.571.20–2.061.511.06–2.14