For instance, local governments in large Chinese cities such as Beijing and Shanghai are tightening instead of loosening their admission threshold for the hukou [28]. Although the hukou system has undergone great reforms, currently, the unequal characteristics of hukou are still obvious. The hukou ...
Subgroups analyses were based on the sex, age (60 years as threshold) and baseline 10-year risk of CVD (5% as threshold). We also conducted sensitivity analyses on the completion population, including all participants for whom data were available at all study assessments. All statistical ...