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Table 1 Explanatory variables and their definitions

From: How has child growth around adiposity rebound altered in Scotland since 1990 and what are the risk factors for weight gain using the Growing Up in Scotland birth cohort 1?

Variable Sweep (Age of child) when data was collected Definition Sample
Gender Sweep 1 (10 months) Male 49.6 %
   Female 50.4 %
Number of children in family Sweep 7 (7–8 years) One 14.6 %
  Two 54.0 %
   Three 24.2 %
   Four or more 7.2 %
Ethnicity Sweep 1 (10 months) White 97.6 %
   Non-white 2.4 %
Scottish Index of Multiple Deprivation (SIMD) Sweep 7 (7–8 years) Q1 (Least deprived) 25.2 %
  Q2 24.4 %
  Q3 21.6 %
  Q4 15.7 %
  Q5 (Most deprived) 13.1 %
Maternal weight status Sweep 6 (5–6 years) Healthy/underweight (BMI <25 kg/m2) 44.9 %
  Overweight (≥25 kg/m2 to >30 kg/m2) 31.5 %
  Obese (≥30 kg/m2) 23.6 %
Mother smoked in pregnancy Sweep 1 (10 months) No 81.6 %
  Yes 18.4 %
If child ever breastfed Sweep 1 (10 months) Yes 69.8 %
  No 30.2 %
Birth weight Sweep 1 (10 months) Normal (>2.5 kg) 94.2 %
   Low (<2.5 kg) 5.8 %
Total sample size    2,278