Background: The technical challenges associated with national data linkage, and the extent of cross-border population movements, are explored as part of a pioneering research project. The project involved linking state-based hospital admission records and death registrations across Australia for a national study of hospital related deaths.
Methods: The project linked over 44 million morbidity and mortality records from four Australian states between 1st July 1999 and 31st December 2009 using probabilistic methods.
Background: Unlike schizophrenia, little interest has been taken in the incidence of obstetric complications in affective psychoses.
Aims: To find out whether obstetric complications are more common in affective psychoses than matched controls.
Method: Two hundred and seventeen probands with an in-patient diagnosis of affective psychosis who had been born in Scotland in 1971-74, and a further 84 born in 1975-78, were closely matched with controls and the incidence of obstetric complications in the two compared using obstetric data recorded in a set format shortly after birth.
Background: Most previous case-control studies of obstetric complications in schizophrenia have been small scale and many have relied on retrospective information.
Aims: To determine which obstetric complications are more common in probands with schizophrenia than matched controls.
Method: Two hundred and ninety-six probands with an in-patient diagnosis of schizophrenia who had been born in Scotland in 1971-74, and a further 156 born in 1975-78, were closely matched with controls and the incidence of obstetric complications in the two compared using obstetric data recorded in a set format shortly after birth.
Br J Obstet Gynaecol
September 1998
Objective: To provide a valid estimate of singleton neonatal mortality based on birthweight and gestational age at delivery.
Design: Record linkage of maternity data and neonatal mortality data.
Setting: Scotland, UK.