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KCE reports vol. 6A Prenatale zorg 102
Study Ref Population Intervention
Reference
standard was
any culture
obtained by
physician or
women found
to be positive
Outcomes Results Comments Study EL
type
Molnar 4 163 women Patient survey Comparison of GBS Overall prevalence of maternal GBS carriage: 24%
CSS 3
et al., [441] presenting for about who detection rate
(39/163) (95% CI 17% to 30%)
1997
their 26 to 28 women would
week antenatal prefer to do
Concordance between physician- and patient-collected
care visit at five their swabs;
swabs was 95% (95% CI 92% to 98%)
family physician vaginal/
offices and anorectal swab
Patients identified 38 cases for sensitivity of 97% (lower
eight
collected by
95% CI 92%); physicians identified 32 cases for sensitivity
obstetricians at patient on self
of 82% (95% CI 70% to 94%)
a hospital in and vaginal/
Toronto, anorectal swab
From 161 surveys, 54 (34%) of women preferred to do
Canada from collected by
their own swab, 66 (41%) were indifferent and 41 (26%)
November physician on
preferred physician to do their swab
1995 through
March 1996
same woman
Any culture
positive for
GBS obtained
by women or
physician used
as reference
standard
Boyer 4 5586 cultures Cultures from Value of prenatal culture for Overall, 22.8% (1272/5586) women were carriers of GBS 182/575 recultured TES 3
et al., [439] from pregnant vagina and identifying GBS colonisation
women with
1983
women at rectum status at delivery
In colonised women, rectal cultures were more incomplete or
obstetric
frequently positive than vaginal cultures (82% vs. 65%) unquantified