out = infert () ¶Infertility after Spontaneous and Induced Abortion
This is a matched case-control study dating from before the availability of conditional logistic regression.
educationIndex of the record.
ageAge in years of case.
parityCount.
inducedNumber of prior induced abortions, grouped into “0”, “1”, or “2 or more”.
case_status0 = control, 1 = case.
spontaneousNumber of prior spontaneous abortions, grouped into “0”, “1”, or “2 or more”.
stratumMatched set number.
pooled_stratumStratum number.
One case with two prior spontaneous abortions and two prior induced abortions is omitted.
Trichopoulos et al (1976). Br. J. of Obst. and Gynaec. 83, 645–650.
t = octave.dataset.infert; # TODO: Port glm() (generalized linear model) stuff to Octave