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Table 1 Demographic characteristics as risk factors for serologically tested STIs

From: The burden and risk factors of Sexually Transmitted Infections and Reproductive Tract Infections among pregnant women in Zimbabwe

Risk factors Serologic STI Positive Serologic STI negative Unadjusted odds ratio (95% CI) Adjusted odds ratio (95% CI)
Age in years n = 320 n = 302   
<20 50 (40) 74 (60) 1  
20-24 100 (43) 130 (57) 1.14 (0.73-1.77) 1.09 (0.69-1.74)
25-29 96 (61) 62 (39) 2.29 (1.42-3.70) 2.10 (1.28-3.45)
30+ 74 (67) 36 (33) 3.04 (1.78-5.20) 2.61 (1.49-4.59)
Type of marriage n = 313 n = 285   
Monogamy 277 (50) 272 (50) 1  
Polygamy 36 (73) 13 (27) 2.71 (1.41-5.24) 2.16 (1.06-4.39)
Income generation n = 321 n = 299   
No 262 (49) 268 (51) 1  
Yes 59 (66) 31 (34) 1.95 (1.22-3.10) 1.60 (0.95-2.68)
Gravidae n = 322 n = 300   
Prima-graviade 75 (34) 145 (66) 1  
Multigravidae 247 (61) 155 (39) 3.08 (2.18-4.34) 3.89 (1.27-11.91)
Parity n = 322 n = 300   
No children 86 (36) 151 (64) 1  
More than one child 236 (61) 149 (39) 2.78 (1.96-3.94) 0.61 (0.20-1.91)
History of infant death n = 310 n = 298   
No 274 (49) 281 (51) 1  
Yes 36 (72) 14 (28) 2.63 (1.39-4.99) 1.24 (0.54-2.87)
History of stillbirths n = 320 n = 298   
No 284 (50) 284 (50) 1  
Yes 36 (72) 14 (28) 2.57 (1.36-4.87) 1.47 (0.64-3.39)
History of contraception n = 321 n = 299   
No 87 (38) 142 (55) 1  
Yes 234 (60) 157 (40) 2.43 (1.74-3.40) 0.94 (0.52-1.71)
Ever used condoms n = 314 n = 292   
No 161 (48) 174 (52) 1  
Yes 153 (56) 118 (44) 1.40 (1.02-1.93) 1.34 (0.92-1.93)
  1. Serologically tested STIs positive was the outcome in multivariate analysis