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Table 1 Reasons reported for GBS testing during pregnancy

From: Factors associated with choice of approach for Group B streptococcus screening

Timing Any <35 weeks 35–37 weeksa >37 weeks
Reason n (%) n (%) n (%) n (%)
Routine pre-natal care 628 72.4 65 48.5 396 77.2 165 75.7
Woman’s request 54 6.2 3 2.3 33 6.4 18 8.3
Previous GBS infection in a newborn infant 23 2.7 1 0.8 17 3.3 5 2.3
ROM before week 37 7 0.8 3 2.2 4 0.8 - -
Contractions with marked cervix changes before week 37 38 4.4 26 19.4 10 2.0 2 0.9
GBS bacteriuria in the current pregnancy 27 3.1 13 9.7 8 1.6 6 2.7
GBS carrier in previous pregnancy 27 3.1 3 2.2 16 3.1 8 3.7
Other 25 2.9 11 8.2 10 1.9 4 1.8
Reason unknown/not recalled 38 4.4 9 6.7 19 3.7 10 4.6
Total No. of women who responded to question 867 100 134 100 513 100 218 100
  1. aFor two women the gestational age was known, however no reason was recorded on questionnaire. They were categorized as missing information and are not included in the table