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Table 3 Adjusted OR (CI 95%) for low vegetable intake by frequency of breakfast, lunch and evening meal, separately for boys and girls in three age groups. Adjusted for covariates

From: Fruit and vegetable intake is associated with frequency of breakfast, lunch and evening meal: cross-sectional study of 11-, 13-, and 15-year-olds

  All schoolchildren Boys Girls Sex interaction Boys    Age interaction Girls    Age interaction
     P-value 11 years 13 years 15 years P-value 11 years 13 years 15 years P-value
Breakfast             
Irregular vs. regular 1.48 (1.16-1.89) 1.19 (0.82-1.73) 1.78 (1.28-2.47) 0.1239 0.95 (0.53-1.70) 1.00 (0.45-3.70)A 2.67 (1.16-6.09) A 0.2341 1.09 (0.56-2.14) 1.60 (0.94-2.74) 2.87 (1.61-5.10) 0.0874
Lunch             
Irregular vs. regular 1.83 (1.50-2.24) 1.73 (1.29-2.31) 1.90 (1.44-2.51) 0.7684 1.81 (1.09-3.02) 1.48 (0.84-2.60)A 2.03 (1.10-3.77) A 0.9833 2.13 (1.18-3.83) 1.57 (1.01-2.44) 2.02 (1.24-3.28) 0.7987
Evening meal             
Irregular vs. regular 1.70 (1.23-2.33) 2.17 (1.19-3.94) 1.51 (1.03-2.21) 0.3716 1.26 (0.54-2.90) 4.35 (1.16-16.28) A 4.00 (0.76-21.01)A 0.2314 1.36 (0.59-3.11) 1.54 (0.77-3.09) 1.45 (0.81-2.59) 0.9443
  1. AThe analyses were performed using PROC LOGISTIC because PROC GLIMMIX did not converge
  2. The analyses including the full study population were adjusted for the covariates: sex, age, intended weight loss, body perception, overweight, family type and family social class
  3. The sex stratified analyses were adjusted for the same covariates except sex
  4. The sex and age stratified analyses were adjusted for the same covariates except sex and age