Effect of birth season on longevity: Thrifty and hopeful phenotypes in historical quebec
Identifieur interne : 001D84 ( Main/Exploration ); précédent : 001D83; suivant : 001D85Effect of birth season on longevity: Thrifty and hopeful phenotypes in historical quebec
Auteurs : Alain Gagnon [Canada]Source :
- American Journal of Human Biology [ 1042-0533 ] ; 2012-09.
English descriptors
- Teeft :
- Adult health, American journal, Biol, Birth season, Birth seasonality, Birth spring summer fall winter, Cases model, Charbonneau, Cole harris, Comparative study, Desjardins, Developmental origins, Disease load, Doblhammer, Dutch famine, Early life, Early life effects, Energy adaptations, Fall season, Famine, Fetal, Fetal development, Fetal origins, Fetal origins hypothesis, Food shortage, Food shortages, French canadian population, Gagnon, Geographic location, Hazard ratios, High fertility, Historical atlas, Historical cohorts, Historical quebec, Hopeful phenotype, Hopeful phenotypes, Human biology, Human pregnancy, Humanities research council, Independent farmers, Infant mortality, Infectious diseases, Inhabitant, Interaction season, Last trimester, Lawrence valley, Life environment, Life environments, Life expectancy, Longevity, Lower mortality, Lower part, Metabolic disease, Modelling strategy, Montreal, Mortality, Mortality risk, Mortality risks, Northern shore, Northern side, Older ages, Other hand, Other seasons, Other side, Phenotype, Pregnancy, Prentice, Proportional hazard models, Quebec, Quebec ancien, Quebec city, Rapid growth, Relative risk, Relative risks, Same side, Seasonal variations, Social science, Southern environment, Southern shore, Thrifty phenotype hypothesis, Toronto press, Unobserved factors, Upper part, Vaupel, Whole colony, Wiley periodicals, Winterborn women.
Abstract
Objectives:: Individuals with fetal growth restrictions may become unhealthy as adult if they live in a nutritionally rich environment. Yet, there is little evidence for the counterpart that profuse resources during early development may prove detrimental in an impoverished adult environment. Using birth season as a proxy for nutrition in utero, this study tests whether early life effects on longevity are conditional on the environment in which people reside during adulthood. Methods:: I used Cox proportional hazard models of mortality after the age of 60 years among historical cohorts of French Canadian women born before 1750. Models are stratified by siblings to adjust the results for unobserved factors shared by family members. Results:: A birth during winter conferred the best‐survival prospects in the south of the Saint‐Lawrence River but the worse prospects in the north, where a birth during the fall was associated with the lowest mortality. Women who migrated to live on the other side of the river lost whatever advantage or disadvantage they had from their birth season and faced increases or decreases in risk that were specific to their new location. Conclusions:: Based on Hales and Barker's thrifty phenotype hypothesis, and adding the “hopeful phenotype” counterpart, this study suggests that cues from the external environment during development are highly specific to that environment and that the slightest change of location may affect the chances for survival into old age. I finally address the role of fertility as a possible mediator or modifier of the effect of birth season on longevity. Am. J. Hum. Biol., 2012. © 2012Wiley Periodicals, Inc.
Url:
DOI: 10.1002/ajhb.22287
Affiliations:
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C.P. 6128, succursale Centre‐ville</wicri:regionArea><wicri:noRegion>succursale Centre‐ville</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">American Journal of Human Biology</title><title level="j" type="alt">AMERICAN JOURNAL OF HUMAN BIOLOGY</title><idno type="ISSN">1042-0533</idno><idno type="eISSN">1520-6300</idno><imprint><biblScope unit="vol">24</biblScope><biblScope unit="issue">5</biblScope><biblScope unit="page" from="654">654</biblScope><biblScope unit="page" to="660">660</biblScope><biblScope unit="page-count">7</biblScope><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2012-09">2012-09</date></imprint><idno type="ISSN">1042-0533</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1042-0533</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="Teeft" xml:lang="en"><term>Adult health</term><term>American journal</term><term>Biol</term><term>Birth season</term><term>Birth seasonality</term><term>Birth spring summer fall winter</term><term>Cases model</term><term>Charbonneau</term><term>Cole harris</term><term>Comparative study</term><term>Desjardins</term><term>Developmental origins</term><term>Disease load</term><term>Doblhammer</term><term>Dutch famine</term><term>Early life</term><term>Early life effects</term><term>Energy adaptations</term><term>Fall season</term><term>Famine</term><term>Fetal</term><term>Fetal development</term><term>Fetal origins</term><term>Fetal origins hypothesis</term><term>Food shortage</term><term>Food shortages</term><term>French canadian population</term><term>Gagnon</term><term>Geographic location</term><term>Hazard ratios</term><term>High fertility</term><term>Historical atlas</term><term>Historical cohorts</term><term>Historical quebec</term><term>Hopeful phenotype</term><term>Hopeful phenotypes</term><term>Human biology</term><term>Human pregnancy</term><term>Humanities research council</term><term>Independent farmers</term><term>Infant mortality</term><term>Infectious diseases</term><term>Inhabitant</term><term>Interaction season</term><term>Last trimester</term><term>Lawrence valley</term><term>Life environment</term><term>Life environments</term><term>Life expectancy</term><term>Longevity</term><term>Lower mortality</term><term>Lower part</term><term>Metabolic disease</term><term>Modelling strategy</term><term>Montreal</term><term>Mortality</term><term>Mortality risk</term><term>Mortality risks</term><term>Northern shore</term><term>Northern side</term><term>Older ages</term><term>Other hand</term><term>Other seasons</term><term>Other side</term><term>Phenotype</term><term>Pregnancy</term><term>Prentice</term><term>Proportional hazard models</term><term>Quebec</term><term>Quebec ancien</term><term>Quebec city</term><term>Rapid growth</term><term>Relative risk</term><term>Relative risks</term><term>Same side</term><term>Seasonal variations</term><term>Social science</term><term>Southern environment</term><term>Southern shore</term><term>Thrifty phenotype hypothesis</term><term>Toronto press</term><term>Unobserved factors</term><term>Upper part</term><term>Vaupel</term><term>Whole colony</term><term>Wiley periodicals</term><term>Winterborn women</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Objectives:: Individuals with fetal growth restrictions may become unhealthy as adult if they live in a nutritionally rich environment. Yet, there is little evidence for the counterpart that profuse resources during early development may prove detrimental in an impoverished adult environment. Using birth season as a proxy for nutrition in utero, this study tests whether early life effects on longevity are conditional on the environment in which people reside during adulthood. Methods:: I used Cox proportional hazard models of mortality after the age of 60 years among historical cohorts of French Canadian women born before 1750. Models are stratified by siblings to adjust the results for unobserved factors shared by family members. Results:: A birth during winter conferred the best‐survival prospects in the south of the Saint‐Lawrence River but the worse prospects in the north, where a birth during the fall was associated with the lowest mortality. Women who migrated to live on the other side of the river lost whatever advantage or disadvantage they had from their birth season and faced increases or decreases in risk that were specific to their new location. Conclusions:: Based on Hales and Barker's thrifty phenotype hypothesis, and adding the “hopeful phenotype” counterpart, this study suggests that cues from the external environment during development are highly specific to that environment and that the slightest change of location may affect the chances for survival into old age. I finally address the role of fertility as a possible mediator or modifier of the effect of birth season on longevity. Am. J. Hum. Biol., 2012. © 2012Wiley Periodicals, Inc.</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><country name="Canada"><noRegion><name sortKey="Gagnon, Alain" sort="Gagnon, Alain" uniqKey="Gagnon A" first="Alain" last="Gagnon">Alain Gagnon</name></noRegion><name sortKey="Gagnon, Alain" sort="Gagnon, Alain" uniqKey="Gagnon A" first="Alain" last="Gagnon">Alain Gagnon</name><name sortKey="Gagnon, Alain" sort="Gagnon, Alain" uniqKey="Gagnon A" first="Alain" last="Gagnon">Alain Gagnon</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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