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Table 1 Baseline demographic characteristics of children, parents and teachers after school randomization

From: The Program SI! intervention for enhancing a healthy lifestyle in preschoolers: first results from a cluster randomized trial

  Control Intervention
Schools 12 12
Children 920 (44.6) 1142 (55.4)
 Age, mean (SD) 3.8 (0.9) 3.7 (0.9)
 Class year, N (%)   
   Age 3 371 (40.3) 455 (39.9)
   Age 4 286 (31.1) 354 (30.9)
   Age 5 263 (28.6) 333 (29.2)
 Gender, N girls (%) 440 (47.8) 581 (50.9)
 KAH-D score, mean (SD) 19.2 (4.6) 18.7 (4.9)
 KAH-PA score, mean (SD) 17.9 (4.7) 17.5 (4.7)
 KA-BH score, mean (SD) 13.8 (5.2) 13.1 (5.3)
 KAH overall score, mean (SD) 50.2 (10.5) 49.2 (10.8)
 Emotions score, mean (SD) 3.3 (2.0) 2.9 (2.2)
Parents 872 (44.76) 1076 (55.2)
 Age, mean (SD) 36.97 (5.78) 37.0 (5.8)
 Gender, N females (%) 662 (75.9) 857 (79.6)
 Salary, N (%)   
   <22,500 € 490 (61.6) 640 (65.0)
   >22,500 € 344 (35.0) 344 (35.0)
  Education level, N (%)   
   None/Elementary 56 (6.6) 100 (9.6)
   Secondary school 63 (7.4) 85 (8.2)
   High school 165 (19.4) 224 (21.6)
   Technical training 168 (19.7) 196 (18.9)
   University degree 399 (46.9) 434 (41.8)
 Birthplace, N (%)   
   Madrid 486 (56.9) 578 (54.6)
   Rest of Spain 183 (21.4) 214 (20.3)
   South America 127 (14.9) 196 (18.5)
   Other countries 58 (6.8) 69 (6.6)
 KAH-D score, mean (SD) 20.8 (4.0) 21.2 (3.7)
 KAH-PA score, mean (SD) 20.1 (4.6) 20.5 (4.6)
 KAH-HB score, mean (SD) 17.2 (3.0) 17.5 (2.8)
 KAH overall score, mean (SD) 58.0 (9.3) 59.1 (8.8)
Teachers 75 (50.0) 75 (50.0)
 Age, mean (SD) 43.5 (9.0) 42.7 (9.1)
 Gender, N females (%) 74 (98.7) 71 (94.7)
 KAH-D score, mean (SD) 22.7 (3.4) 22.1 (3.0)
 KAH-PA score, mean (SD) 22.5 (3.6) 22.8 (3.9)
 KAH-HB score, mean (SD) 17.3 (2.7) 17.8 (2.4)
 KAH overall score, mean (SD) 62.5 (7.4) 62.7 (7.3)
School environment score 8.1 (1.6) 8.1 (2.5)
  1. KAH-D: Diet knowledge, attitudes, and habits. KAH-PA: Physical activity knowledge, attitudes, and habits. KAH-BH: Body and heart knowledge, attitudes, and habits. Continuous variables are expressed as mean (standard deviation). Categorical variables are presented as N = sample size (percentage).