Subjects & methods
Subjects
A convenience sampling method was adopted. The questionnaire was built on Questionnaire Star and distributed online. In total, 523 questionnaires were recovered; 22 questionnaires with excessively short response times and obvious errors were deleted, and 501 valid questionnaires were ultimately obtained, for an effective rate of 95.7%. Among the respondents, 194 (38.7%) were males and 307 (61.3%) were females. The age distribution was as follows: 15 respondents were under 18 years old (3%), 340 were between 18 and 30 years old (67.9%), 46 were between 31 and 40 years old (9.2%), 73 were between 41 and 50 years old (14.6%), and 27 were over 50 years old (5.4%). The specific information is shown in table 1.