==== 1947 (aged 1 year) ==== ---- === Responding population === In 1947 a sub-sample comprising all 676 'premature' babies (of birth weight 5.5 lbs or less) and a set of controls were contacted.  The controls were chosen from the same or nearby local health authority area and matched for sex, birth order, maternal age, social class, and other unspecified social circumstances. In total 1,352 of the whole sample were contacted.\\ \\ === Non-response === Not known. LHA do not hold the data file for the 1947 premature babies study however the original paper questionnaires are held in storage and we do retain microfiche records \\
=== Data collection === Data was collected by health visitors from medical records on mother's and baby's health before, at and immediately after delivery.\\ \\ === Training for data collection === Instructions are given at the head of each form.\\ \\ === Contents === * Details of the delivery * Post-natal care * Health of baby\\ \\ === Questionnaire === * {{questionnaires:1947-Prematurity.pdf|Supplementary questionnaire for the inquiry into prematurity}}