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Abstract
The study was designed to test the short-term influence of a low-dose combined oral
contraceptive upon lactation and infant growth when treatment was initiated at day
30 postpartum. The contraceptive tested contained ethinyl estradiol 0.03 mg and levonorgestrel
0.15 mg. Two control groups were formed by women who received either an oral placebo
or an injectable placebo at day 30 postpartum. An exacting list of requirements for
admission and continuation in the study was applied to all groups.
The oral contraceptive group had a lower percentage of cases in exclusive breast-feeding
at day 91 postpartum when compared to both control groups. Infants in the oral contraceptive
group showed a significantly lower average absolute weight at days 61 and 91 postpartum
and a significantly lower average daily weight increase during the first month of
treatment when compared to both control groups. It was concluded that the oral contraceptive
tested had a negative influence upon lactation and child growth.
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References
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Article info
Publication history
Accepted:
December 8,
1982
Received:
October 26,
1982
Identification
Copyright
© 1983 Published by Elsevier Inc.
