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Secular trends in menarcheal age in India-evidence from the Indian human development survey.

Pathak PK, Tripathi N, Subramanian SV - PLoS ONE (2014)

Bottom Line: It declined by three months from 13.83 years (95% CI: 13.81, 13.85) among women born prior to 1955-1964, to nearly 13.62 years (95% CI: 13.58, 13.67) among women born during late 1985-1989.However, these aggregate national figures mask extensive spatial heterogeneity as mean age at menarche varied from 15.0 years in Himachal Pradesh during 1955-1964 (95% CI: 14.89-15.11) to about 12.1 years in Assam (95% CI: 11.63-12.56) during 1985-1989.Notably, the menarcheal age was significantly associated with the area of residence, geographic region, linguistic groups, educational attainment, wealth status, caste and religious affiliations among Indian women.

View Article: PubMed Central - PubMed

Affiliation: Department of Geography, Delhi School of Economics, University of Delhi, Delhi, India; International Institute for Population Sciences, Mumbai, Maharashtra, India.

ABSTRACT

Background: Evidence from a number of countries in Europe and North America point towards the secular declining trend in menarcheal age with considerable spatial variations over the past two centuries. Similar trends were reported in several developing countries from Asia, Africa and Latin America. However, data corroborating any secular trend in the menarcheal age of the Indian population remained sparse and inadequately verified.

Methods: We examined secular trends, regional heterogeneity and association of socioeconomic, anthropometric and contextual factors with menarcheal age among ever-married women (15-49 years) in India. Using the pseudo cohort data approach, we fit multiple linear regression models to estimate secular trends in menarcheal age of 91394 ever-married women using the Indian Human Development Survey.

Results: The mean age at menarche among Indian women was 13.76 years (95 % CI: 13.75, 13.77) in 2005. It declined by three months from 13.83 years (95% CI: 13.81, 13.85) among women born prior to 1955-1964, to nearly 13.62 years (95% CI: 13.58, 13.67) among women born during late 1985-1989. However, these aggregate national figures mask extensive spatial heterogeneity as mean age at menarche varied from 15.0 years in Himachal Pradesh during 1955-1964 (95% CI: 14.89-15.11) to about 12.1 years in Assam (95% CI: 11.63-12.56) during 1985-1989.

Conclusion: The regression analysis established a reduction of nearly one month per decade, suggesting a secular decline in age at menarche among Indian women. Notably, the menarcheal age was significantly associated with the area of residence, geographic region, linguistic groups, educational attainment, wealth status, caste and religious affiliations among Indian women.

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Birth Cohort specific mean age at menarche among ever married women across major geographic regions in India, IHDS, 2004–2005.
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pone-0111027-g002: Birth Cohort specific mean age at menarche among ever married women across major geographic regions in India, IHDS, 2004–2005.

Mentions: Figure 2 demonstrates the synoptic view of the stark regional heterogeneity in cohort specific mean age at menarche among ever married women in India. The mean age at menarche was highest in the northern region (14.29, with 95% CI of 14.27–14.31) followed by the central (14.02, with 95% CI of 14.01–14.03) and western region (14.01, with 95% CI of 13.99–14.03), and it was least in the north-eastern region (12.60, with 95% CI of 12.56–12.64). The estimates of the mean age at menarche across geographic regions were compared by performing One-way ANOVA test and were found to be significantly different (p<0.001).The regional differentials in mean age at menarche remain substantially large over the study period.


Secular trends in menarcheal age in India-evidence from the Indian human development survey.

Pathak PK, Tripathi N, Subramanian SV - PLoS ONE (2014)

Birth Cohort specific mean age at menarche among ever married women across major geographic regions in India, IHDS, 2004–2005.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4219698&req=5

pone-0111027-g002: Birth Cohort specific mean age at menarche among ever married women across major geographic regions in India, IHDS, 2004–2005.
Mentions: Figure 2 demonstrates the synoptic view of the stark regional heterogeneity in cohort specific mean age at menarche among ever married women in India. The mean age at menarche was highest in the northern region (14.29, with 95% CI of 14.27–14.31) followed by the central (14.02, with 95% CI of 14.01–14.03) and western region (14.01, with 95% CI of 13.99–14.03), and it was least in the north-eastern region (12.60, with 95% CI of 12.56–12.64). The estimates of the mean age at menarche across geographic regions were compared by performing One-way ANOVA test and were found to be significantly different (p<0.001).The regional differentials in mean age at menarche remain substantially large over the study period.

Bottom Line: It declined by three months from 13.83 years (95% CI: 13.81, 13.85) among women born prior to 1955-1964, to nearly 13.62 years (95% CI: 13.58, 13.67) among women born during late 1985-1989.However, these aggregate national figures mask extensive spatial heterogeneity as mean age at menarche varied from 15.0 years in Himachal Pradesh during 1955-1964 (95% CI: 14.89-15.11) to about 12.1 years in Assam (95% CI: 11.63-12.56) during 1985-1989.Notably, the menarcheal age was significantly associated with the area of residence, geographic region, linguistic groups, educational attainment, wealth status, caste and religious affiliations among Indian women.

View Article: PubMed Central - PubMed

Affiliation: Department of Geography, Delhi School of Economics, University of Delhi, Delhi, India; International Institute for Population Sciences, Mumbai, Maharashtra, India.

ABSTRACT

Background: Evidence from a number of countries in Europe and North America point towards the secular declining trend in menarcheal age with considerable spatial variations over the past two centuries. Similar trends were reported in several developing countries from Asia, Africa and Latin America. However, data corroborating any secular trend in the menarcheal age of the Indian population remained sparse and inadequately verified.

Methods: We examined secular trends, regional heterogeneity and association of socioeconomic, anthropometric and contextual factors with menarcheal age among ever-married women (15-49 years) in India. Using the pseudo cohort data approach, we fit multiple linear regression models to estimate secular trends in menarcheal age of 91394 ever-married women using the Indian Human Development Survey.

Results: The mean age at menarche among Indian women was 13.76 years (95 % CI: 13.75, 13.77) in 2005. It declined by three months from 13.83 years (95% CI: 13.81, 13.85) among women born prior to 1955-1964, to nearly 13.62 years (95% CI: 13.58, 13.67) among women born during late 1985-1989. However, these aggregate national figures mask extensive spatial heterogeneity as mean age at menarche varied from 15.0 years in Himachal Pradesh during 1955-1964 (95% CI: 14.89-15.11) to about 12.1 years in Assam (95% CI: 11.63-12.56) during 1985-1989.

Conclusion: The regression analysis established a reduction of nearly one month per decade, suggesting a secular decline in age at menarche among Indian women. Notably, the menarcheal age was significantly associated with the area of residence, geographic region, linguistic groups, educational attainment, wealth status, caste and religious affiliations among Indian women.

Show MeSH
Related in: MedlinePlus