Table 1

Results for hierarchical linear modelling analyses for evaluating the role of age, body mass index, individual affluence, and neighbourhood affluence on individual body dissatisfaction

Variance components between neighbourhoodsParameterVariance estimate (μ)SDdfχ2p value
Interceptμ0Constrained to zero
BMI (centred)μ10.0180.135184.440.002
Within neighbourhood fixed effectsParameterCoefficientSEt ratiop value
Individual affluence*γ30−0.210.22−0.980.33
Between neighbourhood effectsParameterCoefficientSEt ratiop value
*Individual affluence = dummy variable: “low income” (≤$20000) v not (>$20000); †neighbourhood affluence = centred variable: mean average family income across census tract boundary.
Neighbourhood affluence† (centred)γ110.0000020.0000012.590.013
Final model
Level-1Body satisfaction = β0 + β1 (BMI) + β2 (age) + β2 (individual affluence*)
Level-2β0 = γ00
β1 = γ10 + γ11 (neighbourhood affluence†) + μ1
β2 = γ20
β3 = γ30