Funding for this research was provided by:
Hong Kong PhD Fellowship Scheme (PF15-18545)
Research Impact Fund (R4046-18)
Received: 6 October 2021
Accepted: 25 March 2022
First Online: 14 June 2022
: Ethics approval on the secondary data was obtained from the Survey and Behavioural Research Ethics Committee of The Chinese University of Hong Kong (Date: August 13, 2018).The anonymized aggregated secondary data was obtained from WeChat users who had consented to participate in the fitness tracking channel WeRun (微信运动) within WeChat and have authorized the collection of their number of steps.
: Not applicable.
: The authors declare that they have no competing interests.