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Table 1 General characteristics of subjects

From: The responses of subjective feeling, task performance ability, cortisol and HRV for the various types of floor impact sound: a pilot study

Variable N (Mean \( \pm \) SD or %)
Age (years) 15 (23.87 \( \pm \) 1.68)
Male 10 (66.67%)
Smoking
 Non smoker 13 (86.87%)
 Current smoker 2 (13.33%)
Coffee consumption
 No 7 (46.67%)
 Once a day 5 (33.33%)
 Twice a day 3 (20%)
Drinking alcohol
 No 4 (26.67%)
 Once or twice a week 3 (20%)
 Once or twice a month 8 (53.33%)
Current medication 0 (0%)
Hearing impairment 0 (0%)
Noise sensitivity
 Low 3 (20%)
 Middle 8 (53.33%)
 High 4 (26.67%)