Table 1 Characteristics of the participants at baseline (N = 2,530).

From: Pokémon GO and psychological distress, physical complaints, and work performance among adult workers: a retrospective cohort study

  Baseline (Nov 2015–Feb 2016)
Total N = 2,530 Pokémon GO players N = 246 (9.7%) Non-players N = 2,284 (90.3%) p values for difference between groups
N (%) N (%) N (%)
Mean age (SD) 42.12 (10.79) 37.09 (10.85) 42.66 (10.65) p < 0.001
Sex     p = 0.716
  Male 1,580 (62.5) 151 (64.1) 1,429 (62.6)  
  Female 950 (37.5) 95 (38.6) 855 (37.4)
Marital status     p = 0.095
  Unmarried 1,010 (39.9) 107 (43.5) 903 (39.5)  
  Married 1,351 (53.4) 117 (47.6) 1,234 (54.0)
  Divorce/Widowed 169 (6.7) 22 (8.9) 147 (6.4)
Educational status     p = 0.702
  ≤12 years 613 (24.2) 60 (24.4) 553 (24.2)  
  13–16 years 1,731 (68.4) 171 (69.5) 1,560 (68.3)
  ≥17 years 176 (7.0) 15 (6.1) 161 (7.0)
  Others 10 (0.4) 0 (0.0) 10 (0.4)
Employment status     p = 0.188
  Full-time 2,147 (84.9) 217 (88.2) 1,930 (84.5)  
  Contract/Dispatched 351 (13.9) 25 (10.2) 326 (14.3)
  Others 32 (1.3) 4 (1.6) 28 (1.2)
Job type     p = 0.101
  Managerial 323 (12.8) 19 (7.7) 304 (13.3)  
  Professional 394 (15.6) 42 (17.1) 352 (15.4)
  Technical 259 (10.2) 31 (12.6) 228 (10.0)
  Clerical 975 (38.5) 94 (38.2) 881 (38.6)
  Production/Skilled 383 (15.1) 44 (17.9) 339 (14.8)
  Others 196 (7.7) 16 (6.5) 180 (7.9)
Employment shift status     p = 0.898
  Day-time 2,215 (87.5) 216 (87.8) 1,999 (87.5)  
  Shift-time/night-time 315 (12.5) 30 (12.2) 285 (12.5)
Household income     p = 0.229
  ≤\2.99 million 357 (14.1) 42 (17.1) 315 (13.8)  
  \3.00-\4.99 million 688 (27.2) 72 (29.3) 616 (27.0)
  \5.00-\7.99 million 676 (26.7) 63 (25.6) 613 (26.8)
  \8.00-\9.99 million 270 (10.7) 29 (11.8) 241 (10.6)
  \10.00-\14.99 million 193 (7.6) 19 (7.7) 174 (7.6)
  ≥\15.00 million 50 (2.0) 2 (0.8) 48 (2.1)
  Unknown/Not answered 296 (11.7) 19 (7.7) 277 (12.1)
Smoking     p = 0.067
  Currently not smoking 1,939 (76.6) 177 (72.0) 1,762 (77.1)  
  Currently smoking 591 (23.4) 69 (28.0) 522 (22.9)
Drinking     p = 0.453
  Not/rarely drinking 1,014 (40.1) 90 (36.6) 924 (40.5)  
  Sometimes 928 (36.7) 98 (39.8) 830 (36.3)
  Everyday 588 (23.2) 58 (23.6) 530 (23.2)
  1. Note. “Pokémon GO players” had continued to play Pokémon GO for 1 month or longer.