I strongly agree with Pamela's point #2 about the overall high rates 
of supplementation in this study (as well as her other points!).  It 
seems very likely that real effects of the hormonal BC could have 
been masked by the low breastfeeding / exclusive breastfeeding rates.

A useful study design would include only women who intended to 
exclusively breastfeed and who were provided all the support they 
needed to do so.  Then the effects of the Depo would not be mixed up 
or 'lost' among all the other factors that cause mothers to stop 
breastfeeding early.

Margaret
Longmont, CO

At 7:16 PM +0000 3/3/08, Pamela Morrison wrote:
>2)  There was a high drop-out rate of exclusive breastfeeding in 
>both groups.  (Supplementation or perception of insufficient milk 
>production did not differ between groups.  By week 6, 23.5% of women 
>discontinued breast-feeding, and 64.5% of those breast-feeding were 
>supplementing)  This means that a full half of all mothers from both 
>groups were supplementing even by 6 weeks ???

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