Temporal changes in key maternal and fetal factors affecting birth outcomes: A 32-year population-based study in an industrial city

Table 1 Key variables available across different data sources used for the construction of the PAMPER database

	NGH and PMMH neonatal records	Tyne & Wear Archives birth records	Birth ledgers
Mother's current surname	√	√	√
Residential address	√	√	√
Baby's sex	√	√	√
Date of birth	√	√	√
Vital status at birth	√	√	√
Place of birth	√	√	√
Plurality	√	√	√
Birthweight	√	√	-
Gestational age	√	√	-
Maternal age	√	√	-
Parity	√	√	-
Mode of delivery	√	√	-
Baby's surname	√	-	-
Paternal occupation	√	-	-
Maternal occupation	√ (for 1976–92)	-	-
Admission to Special Care Baby Unit	√	-	-
Resuscitation	√	-	-
Early mortality data with cause of death	√	-	-
Hospital morbidity data	√	-	-

Note: The following additional data on maternal and child characteristics are available in the PAMPER database either for the whole study period or for shorter periods: time of birth, date of discharge, discharge weight, date of death (in case of infant deaths), maternal blood group, marital status, housing (for the 1960s), details of previous births, placental weight, onset of labour (spontaneous vs induced), Apgar score, type of feeding on discharge, estimated date of delivery.

ISSN: 1471-2393