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Table 6 Association between level of parental involvement and students’ FV intake, multilevel linear regression analyses, n = 347

From: Parental involvement and association with adolescents’ fruit and vegetable intake at follow-up: Process evaluation results from the multi-component school-based Boost intervention

Stratifying variable Level of parental involvement Adjusteda multilevel analysis
Estimate (grams/day) SE p-value
  Low/no (reference) 0   0.02*
  Medium 47.5 33.7  
  High 95.2 34.3  
Gender
 Girls Low/no (reference) 0   0.03*
Medium 14.6 55.2
High 130.9 53.1
 Boys Low/no (reference) 0   0.03*
Medium 101.3 43.2
High 97.2 44.9
Family educational level
 High Low/no (reference) 0   0.97
Medium 20.9 94.8
High 5.0 94.8
 Medium Low/no (reference) 0   <0.01*
Medium 126.1 51.7
High 191.6 58.8
 Low Low/no (reference) 0   0.37
Medium −29.6 51.7
High 50.8 51.8
Family structure
 Live with two adults Low/no (reference) 0   0.13
Medium 33.5 37.3
High 75.7 37.4
 Live in single parent family Low/no (reference) 0   <0.01*
Medium 208.0 66.9
High 390.8 73.0
  1. aAdjusted for baseline FV intake, family education level, family structure, mother’s country of birth and dose delivered of other intervention components
  2. *Significant associations (p ≤ 0.05)