Age at menarche and risk of asthma: systematic review and meta-analysis
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Age at menarche and risk of asthma : systematic review and meta-analysis. / Lieberoth, Sofie; Gade, Elisabeth Juul; Brok, Jesper; Backer, Vibeke; Thomsen, Simon Francis.
In: Journal of Asthma, Vol. 51, No. 6, 08.2014, p. 559-565.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Age at menarche and risk of asthma
T2 - systematic review and meta-analysis
AU - Lieberoth, Sofie
AU - Gade, Elisabeth Juul
AU - Brok, Jesper
AU - Backer, Vibeke
AU - Thomsen, Simon Francis
PY - 2014/8
Y1 - 2014/8
N2 - BACKGROUND: Several studies have suggested a relationship between the age at menarche and risk of asthma development.OBJECTIVE: To conduct a systematic review and meta-analysis of the relationship between the age at menarche and the risk of asthma.METHODS: This systematic review and meta-analysis was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA). A pre specified literature search strategy was used to identify studies of potential relevance and independent reviews were carried out by two authors. Raw data was pooled using the software package RevMan to calculate summary odds ratios. The risk of publication bias was assessed graphically by using a funnel plot and the robustness of the overall estimate obtained was assessed by using sensitivity analyses.RESULTS: The searches identified 61 potentially relevant articles of which seven articles, with a total of 22,859 subjects, matched the inclusion criteria for the meta-analysis. Pooling of the seven studies showed that girls with early menarche (<12 years) had an increased risk of asthma relative to girls with late menarche; random effects odds ratio = 1.37 (1.15-1.64), (p = 0.0005). Substantial heterogeneity was revealed (I(2) = 55%). Sensitivity analysis showed that the risk estimate was not markedly changed when excluding any of the studies. The funnel plot did not indicate publication bias.CONCLUSIONS: Early menarche appears to be associated with increased risk of asthma. Hormonal, immunological, genetic and environmental factors may act in a developmental context to explain this relationship. Future studies are warranted to further determine the mechanisms responsible for this observation.
AB - BACKGROUND: Several studies have suggested a relationship between the age at menarche and risk of asthma development.OBJECTIVE: To conduct a systematic review and meta-analysis of the relationship between the age at menarche and the risk of asthma.METHODS: This systematic review and meta-analysis was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA). A pre specified literature search strategy was used to identify studies of potential relevance and independent reviews were carried out by two authors. Raw data was pooled using the software package RevMan to calculate summary odds ratios. The risk of publication bias was assessed graphically by using a funnel plot and the robustness of the overall estimate obtained was assessed by using sensitivity analyses.RESULTS: The searches identified 61 potentially relevant articles of which seven articles, with a total of 22,859 subjects, matched the inclusion criteria for the meta-analysis. Pooling of the seven studies showed that girls with early menarche (<12 years) had an increased risk of asthma relative to girls with late menarche; random effects odds ratio = 1.37 (1.15-1.64), (p = 0.0005). Substantial heterogeneity was revealed (I(2) = 55%). Sensitivity analysis showed that the risk estimate was not markedly changed when excluding any of the studies. The funnel plot did not indicate publication bias.CONCLUSIONS: Early menarche appears to be associated with increased risk of asthma. Hormonal, immunological, genetic and environmental factors may act in a developmental context to explain this relationship. Future studies are warranted to further determine the mechanisms responsible for this observation.
KW - Age Factors
KW - Asthma
KW - Body Mass Index
KW - Child
KW - Female
KW - Humans
KW - Menarche
KW - Odds Ratio
KW - Risk Factors
U2 - 10.3109/02770903.2014.903966
DO - 10.3109/02770903.2014.903966
M3 - Journal article
C2 - 24628525
VL - 51
SP - 559
EP - 565
JO - Journal of Asthma
JF - Journal of Asthma
SN - 0277-0903
IS - 6
ER -
ID: 137428791