A bivariate analysis of infant mortality in the 1986/87 Ondo State Dem
ographic and Health Survey data indicates that children of secondary s
chool graduates experienced a higher rate of infant mortality than chi
ldren of less educated mothers. Although this pattern has also been sh
own in a few other Demographic and Health Surveys, this paper explores
the Ondo State data to explain why infant mortality showed such a cou
nterintuitive pattern in relation to maternal education. This search f
or an explanation of the pattern started with an examination of the da
ta for errors and then proceeded to examine the importance of some int
ermediate mechanisms that had been suggested for the education-child s
urvival relationship. The results suggested that data errors, use of h
ealth services and quality of maternal care were not enough to explain
the relationship. Rather, results of a logistic regression analysis s
howed that breastfeeding duration and maternal age at childbirth were
statistically the most significant variables for predicting infant sur
vival in Ondo State. The inverse relationship between mother's educati
on and infant mortality rates that was not shown by bivariate analysis
came out clearly only after controlling for the effect of breastfeedi
ng duration. The linkage between these findings and broader social and
economic realities of Nigeria was provided through reviews of availab
le information. The conclusion from the study was that, although breas
tfeeding and maternal age showed up as the most statistically signific
ant variables, they apparently are just the variables that effectively
captured the effects of the harsh economic conditions, especially amo
ng secondary school graduates, that prevent most young mothers from tr
anslating their child-rearing ideals into reality.