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Table 3 Binomial logistic regression models for the final analysis of risk factors associate for seropositivity of anti-HIV antibodies in 878 pregnant women in Luanda province, Angola

From: Prevalence of HIV and hepatitis B virus among pregnant women in Luanda (Angola): geospatial distribution and its association with socio-demographic and clinical-obstetric determinants

Variables OR (95%CI) p value OR (95%CI) p value
Unadjusted Adjusted by age
Age range (Ref =  ≤ 29 years old)
 ≥ 30 years old 1. 2048 (0.6750- 2.1234) 0.522   
Education (Ref = High (high school or higher education)
 Low (up to elementary school) 1.2214 (0.8233–1.8044) 0.317 1.1825 (0.7948–1.7512) 0.404
Occupation (Ref = Homemakers)
 Student 1.0117 (0.5537–1.8451) 0.970 0.9545 (0.5183–1.7537) 0.881
 Public function 1.1345 (0.6660–1.9636) 0.646 1.1068 (0.6484–1.9186) 0.713
 Street vendor, store and catering 1.2068 (0.6829–2.1486) 0.518 1.1436 (0.6441–2.0444) 0.647
Marital status (Ref = Single)
 Married 1.1466 (0.7566–1.7165) 0.511 1.1711 (0.7717–1.7561) 0.450
Gestational age
 Gestational age (Ref = 1st trimester)
  2nd and 3rd trimester 0.9981 (0.6615–1.5299) 0.993 0.9824 (0.6499–1.5085) 0.934
 Number of births (Ref = 0)
  1 1.0794 (0.6056–1.9370) 0.7956 1.2035 (0.6655–2.1934) 0.5406
  2 or 3 1.5646 (0.9625–2.6202) 0.0785 1.8608 (1.0549–3.3728) 0.0357*
 Spontaneous abortion (Ref = No)
  Yes 0.6153 (0.1823–1.5602) 0.363 0.6338 (0.1868–1.6212) 0.396
 History of abortion (Ref = No)
  Yes 0.9155 (0.6208–1.3525) 0.656 0.8785 (0.5401–1.4418) 0.604
 Access to basic sanitation (Ref = Yes)
  No 0.8791 (0.5797–1.3154) 0.537 0.8643 (0.5691–1.2948) 0.486
 Recently needle-stick injury or sharp objects (Ref = No)
  Yes 0.8750 (0.2048–2.5770) 0.831 0.8955 (0.2092–2.6458) 0.860
 Residence (Ref = Luanda)
  Belas 0.6324 (0.3152–1.174) 0.1685 0.6259 (0.3115–1.1638) 0.1600
  Cacuaco 0.3485 (0.0830–0.9869) 0.0839 0.3598 (0.0856–1.0219) 0.0943
  Viana 0.9647 (0.5973–1.5284) 0.8808 0.9834 (0.6081–1.5606) 0.9444
  1. OR: Odds ratio, CI: confidence interval
  2. *Statistically significant (p < 0.05)