Please use this identifier to cite or link to this item: http://ir.swu.ac.th/jspui/handle/123456789/15422
Title: Birth weight, placental weight and gestation time in relation to natural selection in Thailand
Authors: PROMBOON S.
MI M.P.
CHATURACHINDA K.
Keywords: birth weight
clinical article
etiology
geographic distribution
gestational age
heredity
human
infant
natural selection
newborn
placenta weight
survival
thailand
Biology
Birth Weight
Body Weight
Delivery Of Health Care
Demographic Factors
Fetal Death
Health
Health Services
Infant Mortality
Maternal Health Services
Maternal-child Health Services
Models, Theoretical
Mortality
Physiology
Population
Population Dynamics
Pregnancy
Pregnancy, Third Trimester
Prenatal Care
Primary Health Care
Reproduction
Research Methodology
Socioeconomic Factors
Southeastern Asia
Thailand
Time Factors
Birth Weight
Female
Gestational Age
Human
Infant Mortality
Infant, Newborn
Male
Models, Biological
Organ Weight
Placenta
Pregnancy
Selection (Genetics)
Sex Factors
Support, Non-U.S. Gov't
Thailand
Issue Date: 1983
Abstract: Birth weight, placental weight and gestation time of 26258 single births at Ramathibodi Hospital during 1973–7 were studied in relation to natural selection by fitting quadratic function to natural log of survivors‐to‐nonsurvivors ratios. The survival criterion was 7 days after delivery. The estimated optimal values of birth weight and placental weight were 0.62 and 0.90 standard deviations, respectively, above the corresponding arithmetic means. Selection on birth weight and placental weight was asymmetrical about the optima, being more intense among the lower than the higher values. On the other hand, selection on gestation time seemed most stabilized with the optimum almost coinciding with the mean. Copyright © 1983, Wiley Blackwell. All rights reserved
URI: https://www.scopus.com/inward/record.uri?eid=2-s2.0-0020957661&doi=10.1111%2fj.1469-1809.1983.tb00980.x&partnerID=40&md5=af1df5f865f7fcbac17420a1f29d9376
http://ir.swu.ac.th/jspui/handle/123456789/15422
ISSN: 34800
Appears in Collections:SCOPUS 1983-2021

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