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. 2015 Dec 16;13:302. doi: 10.1186/s12916-015-0528-8

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© Serina et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — a: Decrease in CSMF accuracy and CCC with progressive reduction in the number of question items for each age-specific module, with and without text items. b: First derivative of the predictive performance curves for CCC and CSMF accuracy, with and without text items. CSMF cause specific mortality fraction, CCC chance-corrected concordance