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Neonatal drug withdrawal syndrome: cross-country comparison using hospital administrative data in England, the USA, Western Australia and Ontario, Canada

Davies, H, Gilbert, R, Johnson, K, Petersen, I, Nazareth, I, O’Donnell, I, Guttmann, A and Gonzalez-Izquierdo, A (2015) Neonatal drug withdrawal syndrome: cross-country comparison using hospital administrative data in England, the USA, Western Australia and Ontario, Canada Archives of Disease in Childhood. Fetal and neonatal edition, 101. F1-F5.

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Abstract

Objectives We determined trends over time in the prevalence of neonatal drug withdrawal syndrome (NWS) in England compared with that reported in the USA, Western (W) Australia and Ontario, Canada. We also examined variation in prevalence of NWS according to maternal age, birth weight and across the English NHS by hospital trusts. Design and setting Retrospective study using national hospital administrative data (Hospital Episode Statistics) for the NHS in England between 1997 and 2011. NWS was identified using international classification of disease codes in hospital admission records. We searched the research literature and contacted researchers to identify studies reporting trends in the prevalence of NWS. Main outcome measures Prevalence of NWS by calendar year per 1000 live births for each country/state. For births in England, prevalence by maternal age group and birth weight group. Prevalence by NHS trust and region at birth, and funnel plot to show outlying English NHS hospital trusts (>3 SD of mean prevalence). Main results Mean prevalence rates of recorded NWS increased in all four countries. Rates stabilised in England and W. Australia from the early 2000s and rose steeply in the USA and Ontario during the late 2000s. The most recent prevalence rates were 2.7/1000 live births in England (2011; 1544 cases); 2.7/1000 in W. Australia (2009); 3.6/1000 in the USA (2009) and 5.1/1000 in Ontario (2011). The highest prevalence in England was among babies born to mothers aged 25–34 years at delivery and among babies born with low birth weight (1500–2500 g). In England in 2011, 8.6% of hospital trusts had a recorded prevalence outside 3 SD of the overall average (7% above, 1% below). The North East region of England had the highest recorded prevalence of NWS. Conclusions Although recorded NWS is stable in England and W. Australia, rising rates in the USA and Ontario may reflect better recognition and/or increased use of prescribed opiate analgesics and highlight the need for surveillance. The extent to which different prevalence rates by hospital trust reflect variation in occurrence, recognition or recording requires further investigation.

Item Type: Article
Subjects : Health Care
Authors :
NameEmailORCID
Davies, Hhilary.davies@surrey.ac.ukUNSPECIFIED
Gilbert, RUNSPECIFIEDUNSPECIFIED
Johnson, KUNSPECIFIEDUNSPECIFIED
Petersen, IUNSPECIFIEDUNSPECIFIED
Nazareth, IUNSPECIFIEDUNSPECIFIED
O’Donnell, IUNSPECIFIEDUNSPECIFIED
Guttmann, AUNSPECIFIEDUNSPECIFIED
Gonzalez-Izquierdo, AUNSPECIFIEDUNSPECIFIED
Date : 19 August 2015
Identification Number : 10.1136/archdischild-2015-308948
Copyright Disclaimer : © 2015 BMJ Publishing Group Ltd & Royal College of Paediatrics and Child Health. All rights reserved.
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 10:48
Last Modified : 18 May 2017 12:44
URI: http://epubs.surrey.ac.uk/id/eprint/829293

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