Archives of disease in childhood. Fetal and neonatal edition · 2017
Survival of very preterm infants admitted to neonatal care in England 2008-2014: time trends and regional variation.
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Santhakumaran Shalini, Statnikov Yevgeniy, Gray Daniel, Battersby Cheryl, Ashby Deborah, Modi Neena, Medicines for Neonates Investigator Group
Аннотация
OBJECTIVE: To analyse survival trends and regional variation for very preterm infants admitted to neonatal care.
SETTING: All neonatal units in England.
PATIENTS: Infants born at 22+0-31+6 weeks+daysgestational age (GA) over 2008-2014 and admitted to neonatal care; published data for admitted infants 22+0-25+6 weeks+days GA in 1995 and 2006, and for live births at 22+0-31+6 weeks+days GA in 2013.
METHODS: We obtained data from the National Neonatal Research Database. We used logistic regression to model survival probability with birth weight, GA, sex, antenatal steroid exposure and multiple birth included in the risk adjustment model and calculated annualpercentage change (APC) for trends using joinpoint regression. We evaluated survival over a 20-year period for infants <26 weeks' GA using additional published data from the EPICure studies.
RESULTS: We identified 50 112 eligible infants. There was an increase in survival over 2008-2014 (2008: 88.0%; 2014: 91.3%; adjusted APC 0.46% (95% CI 0.30 to 0.62) p<0.001). The greatest improvement was at 22+0-23+6 weeks (APC 6.03% (95% CI 2.47 to 3.53) p=0.002). Improvement largely occurred in London and South of England (APC: London 1.26% (95% CI 0.60 to 1.96); South of England 1.09% (95% CI 0.36 to 1.82); Midlands and East of England 0.15% (95% CI -0.56 to 0.86); and North of England 0.26% (95% CI -0.54 to 1.07)). Survival at the earliest gestations improved at a similar rate over 1995-2014 (22+0-25+6 weeks, APC 2.73% (95% CI 2.35 to 3.12), p value for change=0.25).
CONCLUSIONS: Continued national improvement in the survival of very preterm admissions masks important regional variation. Timely assessment of preterm survival is feasible using electronic records.
SETTING: All neonatal units in England.
PATIENTS: Infants born at 22+0-31+6 weeks+daysgestational age (GA) over 2008-2014 and admitted to neonatal care; published data for admitted infants 22+0-25+6 weeks+days GA in 1995 and 2006, and for live births at 22+0-31+6 weeks+days GA in 2013.
METHODS: We obtained data from the National Neonatal Research Database. We used logistic regression to model survival probability with birth weight, GA, sex, antenatal steroid exposure and multiple birth included in the risk adjustment model and calculated annualpercentage change (APC) for trends using joinpoint regression. We evaluated survival over a 20-year period for infants <26 weeks' GA using additional published data from the EPICure studies.
RESULTS: We identified 50 112 eligible infants. There was an increase in survival over 2008-2014 (2008: 88.0%; 2014: 91.3%; adjusted APC 0.46% (95% CI 0.30 to 0.62) p<0.001). The greatest improvement was at 22+0-23+6 weeks (APC 6.03% (95% CI 2.47 to 3.53) p=0.002). Improvement largely occurred in London and South of England (APC: London 1.26% (95% CI 0.60 to 1.96); South of England 1.09% (95% CI 0.36 to 1.82); Midlands and East of England 0.15% (95% CI -0.56 to 0.86); and North of England 0.26% (95% CI -0.54 to 1.07)). Survival at the earliest gestations improved at a similar rate over 1995-2014 (22+0-25+6 weeks, APC 2.73% (95% CI 2.35 to 3.12), p value for change=0.25).
CONCLUSIONS: Continued national improvement in the survival of very preterm admissions masks important regional variation. Timely assessment of preterm survival is feasible using electronic records.