Table 2

Variables of equation 1, estimating the probability for an infant of needing treatment for IHPS

β coefficient SE p value
β0, constant+0.883740.65640
X, sex; male = 0, female = 1−1.379120.05421<0.0001
Y, days after 31 Dec 1986−0.000130.00002<0.0001
Z, latitude, degrees−0.110220.01119<0.0001

  • The value of a β coefficient indicates the degree and direction of the effect of its variable in the function.