Forty participants were recruited, with 34 providing effective data. Of these 34 participants, five were women. Additionally, six participants who had 20 irregular heartbeats within 5 minutes were excluded
Age
Mean: 35.1 (standard deviation 10.8) (minimum: 20; maximum 58)
Education level
The education level of 11 participants was university, college, or above (); the education level of 23 participants was high school or below ()
