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Table 3 Univariate analysis of sociodemographic and service-related characteristics associated with recurrent Chlamydia trachomatis infection among female and male soldiers, Fort Bragg, 2005-2010

From: Chlamydia trachomatis infection rates among a cohort of mobile soldiers stationed at Fort Bragg, North Carolina, 2005–2010

    Female       Male    
  Total (n = 890) PY (total = 864.25)   Reinfected (total n = 140) n (%) Hazard ratio 95% CI Total (n = 1214) PY (total = 1149.05)   Reinfected (total n = 83) n (%) Hazard ratio 95% CI
Age (years)             
  17-20 281 282.50 65 (46) 3.33 (1.76-6.31) 211 224.28 25 (30) 2.42 ( 1.26-4.65)
  21-25 453 425.74 64 (46) 2.13 (1.12-4.05) 710 622.89 44 (53) 1.43 (0.78-2.61)
  26-67 156 156.02 11 (8) 1.00   293 301.88 14 (17) 1.00  
Race/ethnicity             
  Non-white 554 544.90 96 (68) 1.27 (0.89-1.82) 649 618.79 54 (66) 1.62 (1.03-2.56)
  Black 374 359.95 66 (47) 1.31 (0.89-1.92) 454 419.25 41 (50) 1.79 (1.10-2.89)
  Hispanic 116 115.33 20 (14) 1.26 (0.74-2.14) 148 151.29 12 (15) 1.53 (0.78-3.01)
  Other 64 69.62 10 (7) 1.08 (0.54-2.14) 47 48.25 1 (1) 0.41 (0.05-2.98)
  White 325 310.78 44 (31) 1.00   558 520.43 28 (34) 1.00  
  Unknown 11 8.58 0 (0)    7 9.82 1    
Grade             
  E1-E4 800 754.99 135 (96) 3.72 (1.52-9.08) 1042 959.94 70 (84) 0.99 (0.54-1.78)
  E5+ 90 109.27 5 (4) 1.00   172 189.11 13 (16) 1.00  
Education             
  High school or less 794 758.43 132 (84) 5.13 (1.63-16.12) 1111 1047.01 74 (74) 0.94 (0.41-2.16)
  Some college or higher 81 90.61 3 (16) 1.00   76 84.11 6 (26) 1.00  
  Unknown 15 15.22 5     27 17.93 3    
Marital status             
  Single 647 611.94 104 (82) 1.18 (0.80-1.72) 885 799.72 68 (98) 1.87 (1.07-3.27)
  Non-single 242 251.09 36 (18) 1.00   329 349.33 15 (2) 1.00  
History of prior PCS             
  0-3 709 689.73 121 (86) 1.63 (1.04-2.64) 914 852.45 65 (78) 1.23 (0.73-2.07)
  >3 181 174.53 19 (14) 1.00   300 296.60 18 (22) 1.00  
Breaks in duty at Ft. Bragg             
  Yes 46 62.23 3 (2) 0.29 (0.09-0.92) 59 85.79 2 (2) 0.35 (0.09-1.43)
  No 844 802.03 137 (98) 1.00   1155 1063.26 81 (98) 1.00  
History of prior deployments             
  1-3 168 144.94 9 (6) 0.33 (0.17-0.65) 478 379.33 30 (64) 1.04 (0.66-1.63)
  None 722 719.32 131 (94) 1.00   736 769.72 53 (36) 1.00  
GC diagnosis at initial Ct infection             
  Yes 49 45.11 10 (7) 1.38 (0.73-2.64) 91 79.11 8 (10) 1.38 (0.66-2.86)
  No 841 819.15 130 (93) 1.00   1123 1069.93 75 (90) 1.00  
Months in service at entry             
  0 to 24 541 560.15 103 (74) 1.59 (1.09-2.32) 510 530.55 46 (55) 1.54 (1.00-2.37)
  25 to 292 349 304.11 37 (26) 1.00   704 618.50 37 (45) 1.00  
Primary occupation specialty at entry             
  Combat 106 110.07 9 (6) 0.49 (0.25-0.96) 317 299.18 24 (29) 1.16 (0.72-1.86)
  Other 784 754.19 131 (94) 1.00   897 849.87 59 (71) 1.00  
  1. Note: CI - confidence interval; Other marital status - married, other; Other race/ethnicity - other, Asian/Pacific Islander, American Indian/Alaskan native; PCS - permanent change in station.