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Table 4 Association between socio-demographic factors and GBS colonization among pregnant women at three health institutions (n = 281)

From: Group B streptococci vaginal colonization and drug susceptibility pattern among pregnant women attending in selected public antenatal care centers in Addis Ababa, Ethiopia

Socio demographic factors Total GBS Culture COR (95% C.I) p-value a AOR(95% C.I) p-valueb
GBS negative N (%) GBS positive N (%)
Age group
 15–19 8 6(75) 2(25) 2.83(0.32–24.8) 0.35   
 20–24 85 72(84.7) 13(15.3) 1.54(0.32–7.45) 0.59   
 25–29 120 102(85) 18(15) 1.50(0.32–7.06) 0.61   
 30–34 49 43(87.8) 6(12.2) 1.19(0.22–6.47) 0.84   
  ≥ 35 19 17(89.5) 2(10.5) 1    
Health Institutions
 ALERT Center 141 124(87.9) 17(12.1) 1   1  
 Woreda 03 HC 52 48(92.3) 4(7.7) 0.61(0.20–1.90) 0.392 0.71 (0.22–2.27) 0.568
 Alem Bank HC 88 68(77.3) 20(22.7) 2.15(1.05–4.37) 0.035* 2.63 (1.22–5.65) 0.013*
Marital Status    
 Married 274 234(85.4) 40(14.6) 1    
 Single 4 3(75) 1(25) 1.95(0.20–19.2) 0.57   
 Divorced 2 2(100) 0(0.0) 0.000 0.99   
 Widowed 1 1(100) 0(0.0) 0.000 1.00   
Occupation
 Civil servant 35 32(91.4) 3(8.6) 1    
 House wife 192 163(84.9) 29(15.1) 1.9(0.55–6.61) 0.314   
 Business women 54 45(83.3) 9(16.7) 2.13(0.54–8.51) 0.283   
  1. *Significant at p-value< 0.05; 1 indicates logical reference group or constant; CI Confidence Interval, COR Crude odds ratio, AOR Adjusted odds ratio, a p-value obtained by binary; b p-value obtained by multiple logistic regression; HC: Health Center; N Number; % Percentage