Cohort profile: Risk evaluation of cancers in <scp>C</scp>hinese diabetic individuals: a longitudinal (<scp>REACTION</scp>) study (队列简介：中国糖尿病患者肿瘤发生风险的纵向研究（REACTION研究）)

The multi-center REACTION study has captured a broad range of data on physical, psychological and metabolic function as well as health status, biochemical and lifestyle information in 259 657 adults from the general population across the China.