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Table 2 Response rates of the participants in the WHZH cohort

From: The Wuhan-Zhuhai (WHZH) cohort study of environmental air particulate matter and the pathogenesis of cardiopulmonary diseases: study design, methods and baseline characteristics of the cohort

  Cohort Wuhan Zhuhai
Invited 5622 3698 1924
Completed 4812 3053 1759
Response rate 85.6% 82.6% 91.4%