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Table 1 Variables used to identify birth admission hospital record for infants

From: Investigating linkage rates among probabilistically linked birth and hospitalization records

Variable Value Description
ICD10-AM Z38 Liveborn infants according to place of birth
ICD10-AM P-codes Conditions originating in the perinatal period
Calculated age [0, 0.0028] An age of 0 or 1 days old
Birth weight Non-missing A birth weight is recorded in the hospital record
Source of referral Born in hospital The hospital record is for birth in hospital
Admission order 1 The hospital record is the first for an infant
  1. ICD10-AM: 10th revision of the International Classification of Disease, Australian Modification.