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BACKGROUND Postpartum hemorrhage (PPH) is a major cause of maternal mortality and morbidity worldwide. Several recent publications have noted an increasing trend in incidence over time. The international PPH collaboration was convened to explore the observed trends and to set out actions to address the factors identified. METHODS We reviewed available(More)
OBJECTIVE To determine whether changes in risk factors for postpartum hemorrhage (PPH) over time are associated with a rise in postpartum hemorrhage rates. METHODS Population-based study using linked hospital discharge and birth records from New South Wales, Australia for 752,374 women giving birth, 1994-2002. Analyses include a description of trends and(More)
BACKGROUND Caesarean section (CS) rates around the world have been increasing and in Australia have reached 30% of all births. Robson's Ten-Group Classification System (10-group classification) provides a clinically relevant classification of CS rates that provides a useful basis for international comparisons and trend analyses. This study aimed to(More)
OBJECTIVES To determine population-based rates and outcomes of hypertensive disorders in pregnancy. DESIGN Cross-sectional study using linked population databases. SETTING AND PARTICIPANTS All women, and their babies, discharged from hospital following birth in New South Wales, between 1 January 2000 and 31 December 2002. MAIN OUTCOME MEASURES Rates(More)
BACKGROUND Changes in clinical practice and in the characteristics of childbearing women have the potential to influence the rate of obstetric anal sphincter injuries (OASIS). To date, little investigation has been undertaken to assess the effect of risk factor trends for the Australian population on OASIS rates. AIMS To ascertain the OASIS rates amongst(More)
OBJECTIVE The objective of this study was to compare international trends in pre-eclampsia rates and in overall pregnancy hypertension rates (including gestational hypertension, pre-eclampsia and eclampsia). DESIGN Population data (from birth and/or hospital records) on all women giving birth were available from Australia (two states), Canada (Alberta),(More)
OBJECTIVE To assess the accuracy of hypertensive disorders of pregnancy reporting in birth and hospital discharge data compared with data abstracted from medical records. METHODS Data from a validation study of 1200 women provided the 'gold standard' for hypertension status. The validation data were linked to both hospital discharge and birth databases.(More)
BACKGROUND Despite widespread use of neonatal hospital discharge data, there are few published reports on the accuracy of population health data with neonatal diagnostic or procedure codes. The aim of this study was to assess the accuracy of using routinely collected hospital discharge data in identifying neonatal morbidity during the birth admission(More)
OBJECTIVE To examine seasonality of pregnancy hypertension rates, and whether they related to sunlight levels around conception. STUDY DESIGN Data were obtained for 424,732 singleton pregnancies conceived from 2001 through 2005 in Australia. We analyzed monthly rates of pregnancy hypertension and preeclampsia in relation to monthly solar radiation. (More)