Policy ForumDemography

Remeasuring Aging

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Science  10 Sep 2010:
Vol. 329, Issue 5997, pp. 1287-1288
DOI: 10.1126/science.1193647

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This article has a correction. Please see:

  1. Dependency ratios.

    Authors' calculations. OADR and POADR are based on (11). ADDR based on (11) and (28). The lower age boundary in all denominators is 20. See SOM §1 and tables S1 and S2 for more detailed methods and additional countries.