Danan Gu1, Fang Yang2, Jessica Sautter3. 1. United Nations Population Division, Two UN Plaza, DC2-1910, New York, NY, 20012, USA. gudanan@yahoo.com. 2. Department of Social Work, School of Sociology and Political Science, Shanghai University, Shanghai, China. 3. Department of Behavioral and Social Sciences, University of the Sciences, Philadelphia, USA.
Unfortunately, the original version of this article [1] contained an error within the results section of the abstract. The sentence beginning with “We found that a one percentage point increase” read “....HR = 1.027, 95 % CI: 1.025–1.027…” but should have read “…HR = 1.027, 95 % CI: 1.025–1.029…” The upper limit of “1.027” was wrong, and was inconsistent with Table 2. This has been corrected in the original article.