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. 2014 Jun 11;180(1):29–40. doi: 10.1093/aje/kwu113

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© The Author 2014. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited

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Figure 2. — Forest plot displaying a random-effects meta-analysis of the adjusted hazard ratios (HRs) for death from all causes associated with a 1-category (usually corresponding to a 1-year) increase in menarcheal age. Boxes represent the hazard ratios for each individual study with the size of the box reflecting the weight assigned to the study. Dotted vertical line represents the combined estimate. The width of the diamond illustrates the 95% confidence intervals (CIs) around the combined estimate.