Edad de menarquia y ascendencia indígena: Un estudio poblacional en Chile
Background: The age at menarche may influence decisively health and disease in women. It also indicates the beginning of the reproductive period and, as a consequence, the possibility of biological continuity for the human species. Genetic and environmental determinants define the age of menarche an...
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Sociedad Médica de Santiago
2012
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oai:scielo:S0034-988720120008000102012-12-18Edad de menarquia y ascendencia indígena: Un estudio poblacional en ChileOssa,XimenaBustos,PatriciaMuñoz,SergioAmigo,Hugo Factors Groups Menarche Socioeconomic factors Background: The age at menarche may influence decisively health and disease in women. It also indicates the beginning of the reproductive period and, as a consequence, the possibility of biological continuity for the human species. Genetic and environmental determinants define the age of menarche and can explain differences found among different populations. Aim: To determine the age at menarche among adolescents with different levels of indigenous descent (parental indigenous surnames), considering the effect of socioeconomic and demographic factors. Material and Methods: An observational study of historic cohorts of8.624 girls from the Arauca-nía Region (central-southern Chile) was carried out. Data were collected by health professionals using a previously validated questionnaire. Occurrence of menarche was estimated through survival analysis and compared between groups (according to indigenous parental surnames) adjusted for parents' income and educational level and provenance (rural/urban). Results: Estimated median age of menarche was 151 months (95% Cl: 150-151). In female with four indigenous surnames, menarche occurred two months later than girls without indigenous surnames and with two indigenous surnames (p < 0,001). In girls whose parents had lowest level of schooling, the difference increased to eight months later (p < 0,005). Conclusions: Age at menarche in the group with higher indigenous descent is later even if socio-economic conditions remain stable. Genetic factors might play an important role, however conditions of vulnerability can influence and further delay the onset of reproductive competency.info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.140 n.8 20122012-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872012000800010es10.4067/S0034-98872012000800010 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
Spanish / Castilian |
| topic |
Factors Groups Menarche Socioeconomic factors |
| spellingShingle |
Factors Groups Menarche Socioeconomic factors Ossa,Ximena Bustos,Patricia Muñoz,Sergio Amigo,Hugo Edad de menarquia y ascendencia indígena: Un estudio poblacional en Chile |
| description |
Background: The age at menarche may influence decisively health and disease in women. It also indicates the beginning of the reproductive period and, as a consequence, the possibility of biological continuity for the human species. Genetic and environmental determinants define the age of menarche and can explain differences found among different populations. Aim: To determine the age at menarche among adolescents with different levels of indigenous descent (parental indigenous surnames), considering the effect of socioeconomic and demographic factors. Material and Methods: An observational study of historic cohorts of8.624 girls from the Arauca-nía Region (central-southern Chile) was carried out. Data were collected by health professionals using a previously validated questionnaire. Occurrence of menarche was estimated through survival analysis and compared between groups (according to indigenous parental surnames) adjusted for parents' income and educational level and provenance (rural/urban). Results: Estimated median age of menarche was 151 months (95% Cl: 150-151). In female with four indigenous surnames, menarche occurred two months later than girls without indigenous surnames and with two indigenous surnames (p < 0,001). In girls whose parents had lowest level of schooling, the difference increased to eight months later (p < 0,005). Conclusions: Age at menarche in the group with higher indigenous descent is later even if socio-economic conditions remain stable. Genetic factors might play an important role, however conditions of vulnerability can influence and further delay the onset of reproductive competency. |
| author |
Ossa,Ximena Bustos,Patricia Muñoz,Sergio Amigo,Hugo |
| author_facet |
Ossa,Ximena Bustos,Patricia Muñoz,Sergio Amigo,Hugo |
| author_sort |
Ossa,Ximena |
| title |
Edad de menarquia y ascendencia indígena: Un estudio poblacional en Chile |
| title_short |
Edad de menarquia y ascendencia indígena: Un estudio poblacional en Chile |
| title_full |
Edad de menarquia y ascendencia indígena: Un estudio poblacional en Chile |
| title_fullStr |
Edad de menarquia y ascendencia indígena: Un estudio poblacional en Chile |
| title_full_unstemmed |
Edad de menarquia y ascendencia indígena: Un estudio poblacional en Chile |
| title_sort |
edad de menarquia y ascendencia indígena: un estudio poblacional en chile |
| publisher |
Sociedad Médica de Santiago |
| publishDate |
2012 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872012000800010 |
| work_keys_str_mv |
AT ossaximena edaddemenarquiayascendenciaindigenaunestudiopoblacionalenchile AT bustospatricia edaddemenarquiayascendenciaindigenaunestudiopoblacionalenchile AT munozsergio edaddemenarquiayascendenciaindigenaunestudiopoblacionalenchile AT amigohugo edaddemenarquiayascendenciaindigenaunestudiopoblacionalenchile |
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