Table 1.
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 |
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