Factors GBS colonisation n (%) GBS colonisation n (%) OR (95% CI) χ2 p value
Positive Negative
Gestationnal age (wks) 8 12 16 20 24 28 32 36 0 6 (11.11) 4 (7.41) 14 (25.93) 12 (22.22) 6 (11.11) 12 (22.22) 0 3 (0.53) 30 (5.29) 95 (16.75) 124 (21.87) 105 (18.52) 93 (16.40) 99 (17.46) 18 (3.17)
N/A
0.003
Parity 0 (1-3) ≥4 24 (44.44) 30 (55.56) 0 177 (31.22) 312 (55.03) 78 (13.76)
N/A
10.1
0.006
Induce abortion Yes No 12 (22.22) 42 (77.78) 48 (8.47) 519 (91.53)
3.09 (1.56 - 6.21)
N/A
0.003
Spontaneaous abortions Yes No 6 (11.11) 48 (88.89) 24 (4.23) 543 (95.77)
2.82 (1.14 - 7.29)
N/A
0.037
Premature Yes No 0 54 (100) 6 (1.06) 561 (98.94)
0
N/A
>0.999
Stillborn Yes No 6 (11.11) 48 (88.89) 9 (1.19) 558 (98.41)
7.75 (2.61 - 21.71)
N/A
0.000
Surgy Yes No 0 54 (100) 9 (1.59) 558 (98.41)
0
N/A
>0.999
Ectopic pregnancy Yes No 0 54 (100) 3 (0.53) 564 (99.47)
0
N/A
>0.999
Induce labour Yes No 0 54 (100) 6 (1.06) 561 (98.94)
0
N/A
>0.999
PROM Yes No 0 54 (100) 6 (1.06) 561 (98.94)
0
N/A
>0.999
Number of prenatal visit None 1 2 3 4 5 and more 0 15 (27.78) 12 (22.22) 15 (27.78) 9 (16.67) 3 (5.56) 42 (7.41) 90 (15.87) 126 (22.22) 138 (24.34) 69 (12.17) 102 (17.99)
N/A
13.67
0.0178
Used of contraceptive Yes No 21 (38.89) 33 (61.11) 273 (48.15) 294 (51.85)
0.68 (0.39 - 1.22)
N/A
0.202