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Table 3 Past Obstetric and Gynaecological characteristics of the HIV positive pregnant women (n = 1626)

From: Incidence of and socio-biologic risk factors for spontaneous preterm birth in HIV positive Nigerian women

Factors Preterm Cases (%) No Preterm (%) P value OR 95% CI
  N=181 N=1445    
Induced abortion history      
· 0 61 (33.0) 566 (39.0)   1.0 1.0
· 1 64 (35.0) 476 (32.0) 0.28 1.3 0.85 – 1.84
· ≥ 2 56 (30.0) 403 (27.0) 0.23 1.3 0.86 – 1.93
Spontaneous abortion      
· 0 145 (80.1) 1175 (81.3)   1.0 1.0
· 1 27 (14.9) 198 (10.3) 0.7 1.1 0.70 – 1.74
· ≥ 2 9 (5.7) 92 (4.9) 0.6 0.8 0.37 – 1.66
Preterm delivery      
· Yes 9 (5.0) 41 (2.8) 0.8 1.8 0.80 – 3.91
· No 172 (95.0) 1404 (97.2 )   1.0 1.0
Operative vaginal delivery      
· Yes 11 (6.1) 56 (3.9) 0.2 1.0 1.0
· No 170 (97) 1389 (96.1)   1.6 0.78 –3.24