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Table 1 Prevalence of BMI category for sample and within diet quality, socio-demographic and lifestyle factors, number (percent)

From: The use of a dietary quality score as a predictor of childhood overweight and obesity

Child BMI Sample N = 8,136 Normal weight 5993 (74.1) Overweight 1565 (19.3) Obese 531 (6.6)  
  N (%) p-value
Diet Quality Score Q1 (Highest Diet Quality) 1,375 (17.0) 1,052 (76.5) 265 (19.3) 58 (4.2) 0.008
Q2 1,813 (22.4) 1,365 (75.3) 344 (19.0) 104 (5.8)
Q3 1,606 (19.9) 1,164 (72.5) 329 (20.5) 113 (7.1)
Q4 1,390 (17.2) 1,045 (75.2) 256 (18.5) 89 (6.4)
Q5 (Lowest Diet Quality) 1,906 (23.6) 1,368 (71.8) 371 (19.5) 168 (8.8)
Gender   
Boys 4,150 (51.3) 3,236 (78.0) 690 (16.6) 224 (5.4) <0.001
Girls 3,940 (48.7) 2,758 (70.0) 875 (22.2) 307 (7.8)
Physical Activity  
9 days or more 4,426 (54.7) 3,428 (77.4) 800 (18.1) 199 (4.5) <0.001
6–8 days 1,568 (19.4) 1,166 (74.4) 300 (19.1) 101 (6.5)
3–5 days 1,445 (17.9) 968 (67.0) 339 (23.4) 138 (9.6)
1–2 days 462 (5.7) 316 (68.3) 90 (19.5) 57 (12.2)
None 187 (2.3) 114 (61.1) 36 (19.5) 37 (19.5)
Television Viewing  
0 to <1 h 1,899 (23.5) 1,485 (78.2) 336 (17.7) 79 (4.1) <0.001
1 to <3 h 5,324 (65.8) 3,933 (73.9) 1,021 (19.2) 370 (6.9)
3 h or more 866 (10.7) 576 (66.5) 207 (23.9) 83 (9.6)
Parent’s Education  
Third level 1,378 (17.0) 1,105 (80.1) 230 (16.7) 44 (3.2) <0.001
Non-degree 1,304 (16.1) 934 (75.4) 246 (18.8) 75 (5.7)
Higher second level 2,987 (36.9) 2,221 (74.5) 578 (19.4) 182 (6.1)
<= Lower secondary level 2,426 (30.0) 1,684 (69.4) 511 (21.1) 231 (9.5)
Parent’s Body Mass Index  
Normal weight 3,651 (47.8) 3,037 (83.2) 522 (14.3) 92 (2.5) <0.001
Overweight 2,479 (32.5) 1,750 (70.6) 533 (21.5) 195 (7.9)
Obese 1,506 (19.7) 897 (59.6) 410 (27.2) 200 (13.2)
  1. Percentages displayed in row %. p-values are two sided and significant at <0.05 level
  2. Children with missing BMI values were excluded (N = 432, 5.0 %) from all analyses. Numbers may not add up to 8,136 due to survey weighting