Table 4

Association between SEP and children’s weight status categories, by wave

WavesSEP quintilesRR for SEP quintile
Normal–overweight/obeseOverweight/obese–overweight/obeseOverweight/obese–normal
RR (95% CI)p ValueRR (95% CI)p ValueRR (95% CI)p Value
Wave 1–2Adjusted* for independent variables and covariates
 2nd Quintile1.35 (0.80 to 2.28)0.261.02 (0.74 to 1.41)0.860.87 (0.60 to 1.26)0.46
 3rd Quintile1.43 (0.84 to 2.43)0.191.33 (0.97 to 1.82)0.070.94 (0.65 to 1.37)0.75
 4th Quintile1.82(1.07 to 3.09)0.031.20 (0.85 to 1.68)0.300.77 (0.50 to 1.17)0.22
 Most disadvantaged1.56 (0.82 to 2.97)0.181.43 (0.97 to 2.11)0.071.08 (0.68 to 1.71)0.75
Wave 1–3Adjusted* for independent variables and covariates
 2nd Quintile0.98 (0.67 to 1.46)0.940.89 (0.65 to 1.22)0.491.00 (0.67 to 1.49)1.00
 3rd Quintile0.81 (0.53 to 1.23)0.320.97 (0.71 to 1.32)0.841.31 (0.89 to 1.92)0.18
 4th Quintile1.21 (0.80 to 1.82)0.360.92 (0.66 to 1.30)0.651.12 (0.72 to 1.72)0.62
 Most disadvantaged1.68(1.06 to 2.65)0.031.46 (0.99 to 2.13)0.051.43 (0.87 to 2.35)0.15
Wave 1–4Adjusted* for independent variables and covariates
 2nd Quintile1.26 (0.87 to 1.83)0.231.14 (0.81 to 1.60)0.460.76 (0.52 to 1.11)0.16
 3rd Quintile1.15 (0.78 to 1.69)0.481.38 (0.99 to 1.93)0.060.94 (0.65 to 1.36)0.75
 4th Quintile1.59(1.08 to 2.35)0.021.33 (0.93 to 1.91)0.120.75 (0.49 to 1.15)0.19
 Most disadvantaged2.25(1.46 to 3.74)<0.011.96(1.30 to 2.96)<0.011.18 (0.74 to 1.89)0.48
  • Bold indicates significant result.

  • *Adjusted for age, sex, ethnicity and mother's and father's BMI.

  • BMI, body mass index;RR, relative risk; SEP, socioeconomic position.