Case Control Study
Copyright ©The Author(s) 2023.
World J Psychiatry. May 19, 2023; 13(5): 191-202
Published online May 19, 2023. doi: 10.5498/wjp.v13.i5.191
Table 1 Statistics on the distribution and return of questionnaires
Number of actual issue
Number of recoveries
Recovery rate (%)
Effective number
Effective rate (%)
240240100%240100%