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Official Journal of the Japan Wood Research Society

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Table 1 Characteristics of participants (n = 671)

From: Association of wood use in bedrooms with comfort and sleep among workers in Japan: a cross-sectional analysis of the SLeep Epidemiology Project at the University of Tsukuba (SLEPT) study

Sex: men, n (%)298 (44.4%)
Age (mean ± SD), years43.3 ± 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%)
  1. SD standard deviation, BMI body mass index