320
Participants
Start Date
May 27, 2022
Primary Completion Date
March 27, 2023
Study Completion Date
May 30, 2023
Questionnaires set
Participants will be asked to respond to the demographic information sheet,e-cigarette using characteristics sheet,the Penn State Electronic Cigarette Dependence Index (PS-ECDI ).
XIAW, Guangzhou
Sun Yat-sen University
OTHER