Skip to main content

Table 1 Participant characteristics included in both analytic samples by study (BtS/MAVAN) and combined

From: Dopamine D4 receptor gene polymorphism (DRD4 VNTR) moderates real-world behavioural response to the food retail environment in children

  BMI sample Energy density sample
BtS (n = 159) MAVAN (n = 120) Combined (n = 279) BtS (n = 135) MAVAN (n = 95) Combined (n = 230)
Age (years) (Mean (SD)) 8.9 (1.7) 4.0 (0.0) 6.8 (2.8) 8.87 (1.73) 4.0 (0.0) 6.9 (2.7)
Sex (n(%) male) 73 (45.9%) 61 (50.8%) 134 (48.0%) 61 (45.2%) 44 (46.3%) 105 (45.6%)
DRD4-7R VNTR carriers (n(%)) 55 (34.6%) 43 (35.8%) 98 (35.1%) 47 (34.8%) 34 (35.8%) 81 (35.2%)
BMI-for-age z-scorea (Mean (SD)) 0.47 (1.77) 0.38 (0.94) 0.43 (1.47) 0.47 (1.73) 0.33 (0.88) 0.41 (1.47)
Energy density (kcal/g) b (Mean (SD)) 4.60 (0.25) 4.50 (0.86) 4.56 (0.60) 4.60 (0.25) 4.52 (0.87) 4.56 (0.59)
mRFEI (Mean (SD)) 23.84 (11.91) 25.85 (10.95) 24.70 (11.53) 24.19 (12.59) 24.91 (11.13) 24.49 (11.98)
Low income prevalence (n(%)) 25 (15.7%) 38 (31.7)% 63 (22.6%) 20 (14.8%) 29 (30.5%) 49 (21.3%)
  1. a n = 215 for energy density sample; b n = 215 for BMI sample