Official Journal of the Japan Wood Research Society
Table 1 Characteristics of participants (n = 671)
Sex: men, n (%) | 298 (44.4%) |
Age (mean ± SD), years | 43.3 ± 11.2 |
Nightcap, n (%) | 164 (24.4%) |
Current smokers, n (%) | 59 (8.8%) |
Exercise habit, n (%) | 129 (19.2%) |
BMI ≥ 25.0, n (%) | 119 (17.7%) |
Shift worker, n (%) | 60 (8.9%) |