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Table 3 Risk factors for GBS carriage

From: Group B streptococcal carriage, serotype distribution and antibiotic susceptibilities in pregnant women at the time of delivery in a refugee population on the Thai-Myanmar border

Risk Factor GBS carrier (n = 66) GBS negative (n = 483) P value
  % (95% CI) % (95% CI)  
Any risk factor 11 89 0.7
  16.7 (8.6-27.9) 18.4 (15.1-22.2)  
Fever > 38°C in labour 0 3 0.5
  0.0 (0.0-5.4) 0.6 (0.1-1.8)  
PROM > 18 hours 4 36 0.6
  6.0 (1.7-14.8) 7.5 (5.3-10.2)  
Preterm < 37 weeks 7 49 0.1
  10.6 (4.4-20.6) 7.4 (5.3-10.2)  
Fever and PROM 0 1 0.7
  0.0 (0.0-5.4) 0.2 (0.0-1.1)  
Fever and preterm 0 2 0.6
  0.0 (0.0-5.4) 0.4 (0.0-1.5)  
PROM and preterm 2 8 0.4
  3.0 (0.4-10.0) 16.6 (0.1-3.2)  
Preterm, PROM & fever 0 1 0.7
  0.0 (0.0-5.4) 0.2 (0.0-1.1)  
  1. PROM prolonged rupture of membranes