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Table 1 Characteristics of study participants

From: Leisure-time physical activity in youth as a predictor of adult leisure physical activity among Japanese workers: a cross-sectional study

  Males    Females   
  Current participation in regular leisure-time physical activitya   Current participation in regular leisure-time physical activitya  
Characteristics Yes No pb Yes No pb
N 33 271   42 534  
Age [years], mean ± SD 43.1 ± 11.1 39.8 ± 10.4 0.18 39.5 ± 12.0 36.5 ± 11.3 0.099
Body mass index [kg/m2], mean ± SD 23.2 ± 2.9 23.6 ± 4.0 0.78 23.6 ± 4.0 21.5 ± 3.7 0.75
Monthly overtime hours [hours], mean ± SD 27.7 ± 26.1 35.1 ± 27.3 0.16 6.4 ± 5.2 8.7 ± 11.2 0.80
Sleep duration [hours], mean ± SD 6.4 ± 1.0 6.3 ± 1.0 0.48 6.2 ± 1.7 6.4 ± 1.1 0.20
Number of holidays [days/month], mean ± SD 7.7 ± 1.8 7.1 ± 2.0 0.16 9.7 ± 3.0 9.0 ± 2.2 0.025
Length of service [years], mean ± SD 15.8 ± 11.4 15.7 ± 10.4 0.86 13.4 ± 9.9 12.5 ± 10.1 0.39
GHQ-12 score, mean ± SD 3.5 ± 3.2 3.8 ± 3.4 0.69 4.1 ± 3.6 4.0 ± 3.3 0.99
Educational level, n (%)    0.58    1.00
High school graduate 10 (32.3) 80 (31.6)   6 (15.4) 77 (14.8)  
Junior/technical college graduate 8 (25.8) 48 (19.0)   26 (66.7) 351 (67.4)  
University degree or higher 13 (41.9) 125 (49.4)   7 (18.0) 93 (17.9)  
Married, n (%) 22 (66.7) 186 (69.9) 0.69 22 (55.0) 263 (49.6) 0.62
Night-shift worker, n (%) 13 (40.6) 74 (28.4) 0.16 32 (78.1) 392 (74.8) 0.71
Current smoker, n (%) 7 (21.9) 106 (40.0) 0.054 8 (19.5) 56 (10.7) 0.12
Regular drinker, n (%) 14 (43.8) 125 (46.8) 0.85 11 (26.8) 111 (21.3) 0.43
Any unusual item in the results of the latest physical examination, n (%) 17 (54.8) 141 (56.4) 1.00 19 (45.2) 222 (45.5) 1.00
History of type 2 diabetes, n (%) 1 (3.3) 12 (5.3) 1.00 1 (2.8) 8 (1.8) 0.50
History of hypertension, n (%) 6 (19.4) 35 (15.1) 0.60 2 (5.6) 33 (7.3) 1.00
History of depression, n (%) 3 (10.0) 11 (4.9) 0.22 2 (5.6) 15 (3.3) 0.36
  1. Number of subjects varied across variables as a result of missing information
  2. GHQ-12 General Health Questionnaire 12-item scale [28], SD standard deviation
  3. aDefined as exercising at least twice a week for 30 min per session for more than 1 year
  4. bWilcoxon rank sum test used for continuous variables and Fisher’s exact probability test used for categorical variables