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Table 2 Baseline characteristics of participants in the BW Study 2010

From: Effects of statewide health promotion in primary schools on children’s sick days, visits to a physician and parental absence from work: a cluster-randomized trial

  Missing Values Intervention (n = 1072) Control (n = 871) Total (n = 1943)
Boys, n (%)   536 (50.0) 459 (52.7) 995 (51.2)
Age, years [m (sd)]   7.09 (0.64) 7.06 (0.64) 7.08 (0.64)
Grade 1, n (%)   550 (51.3) 474 (54.4) 1024 (52.7)
Migration background, n (%) 297 318 (35.1)1 207 (28.0) 525 (31.9)
Anthropometry
 BMIPERC, [m (sd)] 50 49.13 (28.07) 48.75 (27.67) 48.96 (27.88)
 Waist circumference, cm [m (sd)] 54 55.72 (5.87) 55.41 (5.89) 55.58 (5.88)
 WHtR,[m (sd)] 55 0.45 (0.04) 0.45 (0.04) 0.45 (0.04)
 Overweight/obesity, n (%) 50 107 (10.3) 83 (9.7) 190 (10.0)
 Abdominal obesity, n (%) 55 90 (8.7) 68 (8.0) 158 (8.4)
Parental characteristics
 Single parent, n (%) 265 101 (10.9) 76 (10.1) 177 (10.5)
 Tertiary family educational level, n (%) 323 293 (32.7) 229 (31.6) 522 (32.2)
 Household income < 1750 €, n (%) 452 113 (14.0) 94 (13.8) 207 (13.9)
 Overweight/obesity (mother), n (%) 363 279 (32.1) 217 (30.5) 496 (31.4)
 Overweight/obesity (father), n (%) 468 512 (62.3) 386 (59.1) 898 (60.9)
 Abdominal obesity (mother), n (%) 916 275 (49.0) 206 (44.2) 481 (46.8)
 Abdominal obesity (father), n (%) 1011 386 (75.2) 306 (73.0) 692 (74.2)
 Smoking (mother), n (%) 287 172 (20.7) 175 (21.2) 347 (21.0)
 Smoking (father), n (%) 356 234 (29.4) 238 (30.1) 472 (29.7)
 Days off work (mother), median [m (sd)] 309a 2 [3.09 (4.62)]2 0 [2.36 (4.23)] 1 [2.77 (4.47)]
 Employed (mother), n (%) 302 657 (72.3) 519 (70.9) 1176 (71.7)
 Working hours/week (mother), [m (sd)] 21a 20.83 (10.68) 21.18 (11.79) 20.99 (11.18)
 Days off work (father), median [m (sd)] 839a 0 [0.78 (2.31)]2 0 [0.33 (1.19)] 0 [0.56 (1.87)]
 Employed (father), n (%) 354 833 (95.6) 694 (96.7) 1527 (96.1)
 Working hours/week (father), [m (sd)] 86a 43.60 (10.65) 43.99 (10.35) 43.78 (10.51)
Health and lifestyle characteristics
 Sick days, median [m (sd)] 390 5 [7.50 (7.70)] 5 [6.73 (5.97)] 5 [7.15 (6.97)]
 Visits to a physician, median [m (sd)] 404 2 [2.99 (2.76)] 2 [2.95 (3.23)] 2 [2.97 (2.98)]
 Playing outside > 60 min/day, n (%) 296 607 (66.6)3 523 (71.2) 1130 (68.6)
 Physical active ≥ 4 days/week ≥ 60 min/day, n (%) 320 238 (26.6) 199 (27.3) 437 (26.9)
 6 min run test, meter [m (sd)] 63 839.67 (122.88)4 855.28 (120.10) 846.69 (121.85)
 Screen media > 1 h/day, n (%) 250 144 (15.4) 100 (13.2) 244 (14.4)
 Sugar sweetened beverages > 1 time/week, n (%) 241 236 (25.1) 180 (23.6) 416 (24.4)
Skipping breakfast, n (%) 236 97 (12.7) 126 (13.4) 223 (13.1)
  1. m mean, sd standard deviation, WHtR Waist-to-height ratio, a with regard to those who stated an employment
  2. 1p = 0.002, 2p < 0.001, 3p = 0.048, 4p = 0.006