Kerryn A. Moore|Julie A. Simpson|Kyla H Thomas|Marcus J. Rijken|Lisa J. White|Saw Lu Moo Dwell|Moo Kho Paw|Jacher Wiladphaingern|Sasithon Pukrittayakamee|François Nosten|Freya J. I. Fowkes|Rose McGready
Estimating Gestational Age in Late Presenters to Antenatal Care in a Resource-Limited Setting on the Thai-Myanmar Border
Burnet Institute|University of Melbourne|University of Melbourne|Mahidol Oxford Tropical Medicine Research Unit|Shoklo Malaria Research Unit|Mahidol University|Mahidol Oxford Tropical Medicine Research Unit|Shoklo Malaria Research Unit|Mahidol University|University Medical Center Utrecht|University of Oxford|Mahidol Oxford Tropical Medicine Research Unit|Mahidol University|Mahidol Oxford Tropical Medicine Research Unit|Shoklo Malaria Research Unit|Mahidol University|Mahidol Oxford Tropical Medicine Research Unit|Shoklo Malaria Research Unit|Mahidol University|Mahidol Oxford Tropical Medicine Research Unit|Shoklo Malaria Research Unit|Mahidol University|Mahidol Oxford Tropical Medicine Research Unit|Mahidol University|University of Oxford|Mahidol Oxford Tropical Medicine Research Unit|Shoklo Malaria Research Unit|Mahidol University|Monash University|Burnet Institute|University of Melbourne|University of Oxford|Mahidol Oxford Tropical Medicine Research Unit|Shoklo Malaria Research Unit|Mahidol University
estimating gestational age resourcelimited settings prone considerable inaccuracy crownrump length measured ultrasound 14 weeks gestation recommended method estimating gestational age often unavailable judgements regarding provision appropriate obstetric neonatal care dependent accurate estimation gestational age determined accuracy dubowitz gestational age assessment populationspecific symphysisfundal height formula ultrasound biometry performed 16 40 weeks gestation estimating gestational age using preexisting data antenatal clinics shoklo malaria research unit thaimyanmar border malaria endemic two cohorts women gave birth live singletons analysed 1 250 women attended antenatal care july 2001 may 2006 ultrasound crownrump length reference dubowitz gestational age assessment 2 975 women attending antenatal care april 2007 october 2010 ultrasound crownrump length symphysisfundal measurements additional study ultrasound biparietal diameter head circumference randomly scheduled 16 40 weeks gestation mean difference estimated newborn gestational age methods 95 limits agreement loa determined linear mixedeffects models dubowitz method symphysisfundal height formula performed well term newborns overestimated gestational age preterms 257 weeks 95 loa 049 465 394 weeks 95 loa 250 538 respectively biparietal diameter overestimated gestational age 083 weeks 95 loa 093 258 head circumference underestimated gestational age 039 weeks 95 loa 260 182 especially measured 24 weeks gestation results study used quantify biases associated alternative methods estimating gestational age absence ultrasound crownrump length inform critical clinical judgements population point reference elsewhere