Data sources
| Database | Data type | Years* | Data extracted |
|---|---|---|---|
| GRO, General Registrar’s Office; ICD, International Classification of Disease; SMR, Scottish Morbidity Record. | |||
| *All dates are inclusive. | |||
| SMR02 | Maternal hospital discharge | 1992–1995 | Obstetric, maternal (including ICD9 diagnoses), and neonatal characteristics |
| SMR11 | Neonatal discharge | 1992–1995 | Neonatal diagnoses (ICD9) |
| GRO | Death certificate | 1992–2000 | Deaths |
| SMR01 | General and paediatric hospital discharge | 1992–2000 | Hospital discharges with diagnosis of asthma (ICD9 and ICD10) |