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. 2021 Jan 5;11(1):e043062. doi: 10.1136/bmjopen-2020-043062

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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Intrinsic capacity in different regions, age and sex groups. (A) The comparison of the weighted prevalence of IC decline among the six regions of China (χ² test, p<0.01). (B) The comparison of the weighted prevalence of IC decline between north China and south China (χ² test, p<0.01). (C) The comparison of the IC score among different age groups (one-way ANOVA, p<0.01). (D) The comparison of the IC score between men and women (t-test, p<0.01). ANOVA, analysis of variance; IC, intrinsic capacity.