Journal article
Quantile Effects of Prenatal Care Utilization on Birth Weight in Argentina
Health economics, Vol.18(11), pp.1307-1321
11/2009
DOI: 10.1002/hec.1431
PMCID: PMC2763933
PMID: 19142894
Abstract
The effects of prenatal care utilization on birth weight (BW) may vary by unobserved fetal health endowments. This heterogeneity will be masked by estimating the effects at BW mean but can be evaluated by estimating the effects at BW quantiles as fetal health endowment is a strong correlate with the BW quantile order. We estimated the effects of prenatal care visits and delay before prenatal care initiation, on BW mean and quantiles using a sample of infants from Argentina. Self-selection into prenatal care was modeled using 2SLS and instrumental variable quantile regression. Results suggest that the 'mean' effect of prenatal care utilization largely underestimates the effects at lower BW quantiles. About 35 and 77 g increase in BW mean and 0.1 quantile respectively, per visit and about 30 and 139 g decrease in BW mean and 0.1 quantile respectively, per week delayed, were estimated. Ignoring self-selection into prenatal care resulted in underestimation of mean and quantile effects. Results highlight the limitation of analyses focused on 'mean effects' in the presence of treatment heterogeneity and emphasize the importance of identifying women at risk for having infants at lower BW quantiles as they may benefit most from earlier and more intensive prenatal care.
Details
- Title: Subtitle
- Quantile Effects of Prenatal Care Utilization on Birth Weight in Argentina
- Creators
- George L Wehby - Department of Health Management and Policy, College of Public Health, University of Iowa, Iowa City, IA, USAJeffrey C Murray - Department of Pediatrics, College of Medicine, University of Iowa, Iowa City, IA, USAEduardo E Castilla - ECLAMC (Latin American Collaborative Study of Congenital Malformations) at CEMIC, Buenos Aires, ArgentinaJorge S Lopez-Camelo - ECLAMC at Imbice, La Plata, ArgentinaRobert L Ohsfeldt - Health Policy & Management, School of Rural Public Health, Texas A&M Health Science Center, College Station, TX, USA
- Resource Type
- Journal article
- Publication Details
- Health economics, Vol.18(11), pp.1307-1321
- DOI
- 10.1002/hec.1431
- PMID
- 19142894
- PMCID
- PMC2763933
- NLM abbreviation
- Health Econ
- ISSN
- 1057-9230
- eISSN
- 1099-1050
- Language
- English
- Date published
- 11/2009
- Academic Unit
- Preventive and Community Dentistry; Anatomy and Cell Biology; Health Management and Policy; Stead Family Department of Pediatrics; Epidemiology; Economics; Pediatric Dentistry; Craniofacial Anomalies Research Center; Public Policy Center (Archive); Dental Research
- Record Identifier
- 9984025308402771
Metrics
23 Record Views