Survival of infants with SIRDS
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Data: sirds.dat
Keywords: Logistic regression.
Description: This data set contains the birth weights of fifty infants
who exhibited severe idiopathic respiratory distress syndrome (SIRDS).
This is a serious condition that may result in death, and in fact
of the fifty children sampled only 23 survived.

Number of observations: 50
Variable      Description
birthweight   Weight at birth (in kg)
survival      Binary variable: survived=1, died=0

Source: van Vliet, P.K. and Gupta, J.M. (1973) Sodium bicarbonate
in idiopathic respiratory distress syndrome, Archives of Disease
in Childhood, 48, pp. 249-255.