2.4 STUDY VARIABLES
The main outcome variable was GBS colonization, defined as positive
sample culture from the lower vagina duct. Potential interfering factors
were chosen a priori on the basis of literature review, including age
(years), marrietal status (single, married, widow), level of education
(Primary, secondary and high education), income ( low, moderate
and hight) occupation ( Student, housewife,femer, business, nurse, teacher,hustle, other), gestationnal age (in weeks), parity (number of
previous births), induce abortion (yes or no), spontaneaous abortions
(yes, no), stillborn (yes, no), previous surgy (yes, no),electropic pregnancy (yes, no), induce labour (yes, no), PROM (yes, no),
Number of prenatal visit, used of contraceptive (yes, no), Used of
antibiotic (yes, no), fever (yes, no), diabetic (yes, no), HIV
status (yes, no), heart disease (yes, no), anemia (yes, no) and
UTI during pregnancy (yes, no)