Description

The data comprise ages at diphteria, tetanus and pertussis (DTP) vaccination, Haemophilus influenzae type b (Hib) vaccination, and febrile convulsion. There are 1378 convulsions in 1213 children. The ages have been jittered.

Usage

Format

A data frame containing 1378 rows and 11 columns. The column names are 'case' (individual identifier), 'sta' (age on first day of the observation period), 'end' (age on last day of the observation period), 'conv' (age at convulsion), 'dtp' (age at first dose of DTP), 'dtpd2' (age at second dose of DTP), 'dtpd3' (age at third dose of DTP), 'hib' (age at first dose of Hib), 'hibd2' (age at second dose of Hib), 'hibd3' (age at third dose of hib), 'sex' (1 for males, 2 for females).