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Table 1 Socio-demographic, obstetric and clinical characteristics and factors affecting maternal GBS colonization rate among pregnant women attending ANC in NRH from March to May 2016, Nekemte, Ethiopia

From: Prevalence and drug susceptibility pattern of group B Streptococci (GBS) among pregnant women attending antenatal care (ANC) in Nekemte Referral Hospital (NRH), Nekemte, Ethiopia

Variables

GBS

Total, n (%)

COR (95% CI)

AOR (95% CI)

Positive, n (%)

Negative, n (%)

Age group (in years)

 <29

15 (10.6)

126 (89.4)

131 (78.3)

1.4 (0.2, 12.3)

 

 ≥29

7 (18)

32 (82)

39 (21.7)

1

 

Residence

 Rural

5 (20)

20 (80)

25 (13.9)

1

 

 Urban

17 (11)

138 (89)

155 (86.1)

1.3 (0.8, 3.1)

 

Occupation

 Farmer

3 (43)

4 (57)

7 (3.9)

 

 Housewife

12 (10.3)

104 (89.7)

116 (64.4)

3.7 (0.4, 37)

 

 Merchant

2 (40)

3 (60)

5 (2.8)

  

 Civil servant

5 (9.6)

47 (90.4)

52 (28.9)

1

 

Marital status

 Single

3 (37.5)

5 (62.5)

8 (4.4)

4.7 (0.5, 46)*

3.2 (1.8, 11.6)**

 Married

19 (11)

153 (89)

172 (95.6)

1

1

Educational status

 Illiterate

9 (53)

8 (47)

17 (9.4)

1

 

 Literate

13 (8)

150 (92)

163 (90.6)

1 (1.01, 1,08)

 

Gravida

 Multigravida

14 (13.5)

90 (86.5)

104 (57.8)

1

 

 Primigravida

8 (10.5)

68 (89.5)

76 (42.2)

1.5 (0.3, 8.3)

 

Gestational age (weeks)

 35–37 

4 (3.1)

127 (96.9)

131 (72.8)

0.4 (0.07, 1.8)*

2.1 (1.2, 11.6)**

 >37 

18 (35.3)

31 (63.9)

49 (27.2)

1

1

Recent antibiotic treatment

 Yes

9 (17.6)

42 (82.4)

51 (28.3)

1

 

 No

13 (10)

116 (90)

129 (71.7)

1.3 (0.2, 7.2)

 

Contraception

 Yes

10 (8)

116 (92)

126 (70)

0.4 (0.08, 2.1)

 

 No

12 (22.2)

42 (77.8)

54 (30)

1

 
  1. COR crude odds ratio, AOR adjusted odds ratio, NRH Nekemte referral hospital
  2. * (marginally significant at P < 0.1)
  3. ** (significant at P < 0.05)