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Table 2 Risk of childhood overweight and obesity calculated from logistic regression models

From: Infancy weight gain, parental socioeconomic position, and childhood overweight and obesity: a Danish register-based cohort study

  Unadjusted model Intermediate model 1aa Intermediate model 1bb Adjusted model 2ac Adjusted model 2bd
OR 95% CI OR 95% CI OR 95% CI OR 95% CI OR 95% CI
Weight gain category
 Slow 0.48 0.39–0.60 0.49 0.39–0.61 0.49 0.39–0.61 0.27 0.21–0.34 0.27 0.21–0.34
 Mean 1 1 1 1 1
 Rapid 2.18 1.90–2.51 2.18 1.90–2.51 2.17 1.88–2.49 3.08 2.66–3.58 3.09 2.66–3.59
 Very rapid 4.10 3.59–4.68 4.14 3.36–4.72 4.10 3.59–4.67 7.59 6.52–8.83 7.58 6.51–8.83
Level of maternal education
 ISCED 0–2 1.22 1.03–1.45 1.14 0.95–1.36    1.15 0.95–1.40   
 ISCED 4 1.32 1.09–1.59 1.34 1.10–1.62    1.20 0.98–1.47   
 ISCED 5–6 1.12 0.93–1.36 1.18 0.97–1.44    1.10 0.90–1.34   
 ISCED 7–8 1 1    1   
Household income (quartiles)
 Low 1.40 1.21–1.63    1.28 1.10–1.50    1.34 1.13–1.59
 Low-middle 1.19 1.02–1.39    1.16 0.99–1.36    1.16 0.98–1.37
 High-middle 1.16 1.00–1.36    1.18 1.00–1.38    1.12 0.95–1.32
 High 1    1    1
Child sex
 Male 1      1 1
 Female 0.89 0.80–0.99      0.94 0.84–1.05 0.94 0.84–1.05
Size for gestational age at birth
 SGA 0.60 0.45–0.79      0.31 0.24–0.42 0.32 0.24–0.42
 AGA 1      1 1
 LGA 2.30 2.02–2.61      5.26 4.50–6.14 5.27 4.51–6.16
Parity
 1 1.01 0.90–1.13      0.88 0.77–1.00 0.84 0.74–0.96
 2 1      1 1
  > 2 1.01 0.85–1.20      0.93 0.77–1.11 0.93 0.78–1.12
Gestational age at birth
 37 weeks 1.04 0.81–1.34      0.43 0.33–0.56 0.43 0.33–0.56
 38 weeks 1.07 0.91–1.27      0.62 0.52–0.74 0.62 0.52–0.74
 39 weeks 0.91 0.79–1.06      0.75 0.64–0.88 0.75 0.64–0.88
 40 weeks 1      1 1
 41 weeks 1.06 0.92–1.21      1.23 1.06–1.43 1.23 1.06–1.43
Maternal pre-pregnancy BMI
 Underweight 0.52 0.35–0.78      0.56 0.37–0.84 0.55 0.37–0.83
 Normal weight 1      1 1
 Overweight 1.43 1.26–1.63      1.34 1.17–1.54 1.34 1.17–1.54
 Obesity I 1.89 1.60–2.23      1.67 1.40–2.01 1.68 1.40–2.01
 Obesity II + III 2.36 1.92–2.90      2.10 1.67–2.64 2.10 1.67–2.64
Gestational diabetes
 Yes 1.40 1.09–1.80      1.17 0.89–1.54 1.18 0.90–1.55
 No 1      1 1
Maternal smoking during pregnancy
 Yes 1.48 1.22–1.80      1.22 0.98–1.51 1.16 0.93–1.43
 Stoppede 1.54 1.20–1.97      1.45 1.11–1.89 1.40 1.08–1.83
 No 1      1 1
Mode of delivery
 Caesarean 1.07 0.94–1.22      0.99 0.85–1.14 0.99 0.86–1.15
 Vaginal 1      1 1
Duration of breastfeeding
 0–2 months 1.23 1.07–1.42      0.89 0.76–1.04 0.89 0.76–1.03
 2–4 months 0.96 0.81–1.15      0.84 0.70–1.01 0.84 0.70–1.01
 4–6 months 1      1 1
  > 6 months 0.85 0.68–1.05      0.81 0.65–1.01 0.81 0.65–1.01
  1. Unadjusted and adjusted odds ratios (OR) and associated 95% confidence intervals (95% CI) of overweight and obesity in the study population (n = 19,894), based on imputed data. Abbreviations: ISCED (International Standard Classification of Education), SGA (Small-for-gestational age), AGA (Appropriate-for-gestational age), LGA (Large-for-gestational age). aAdjusted for maternal education and control variables (region, birth year and number of database registrations), bAdjusted for household income and control variables (region, birth year and number of database registrations), cAdjusted for maternal education, all covariates and control variables (region, birth year and number of database registrations), dAdjusted for household income, all covariates and control variables (region, birth year and number of database registrations), eStopped during pregnancy