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Table 1 Outcome data collected from participating children, parents, and other family members

From: A cluster-randomised feasibility trial of a children’s weight management programme: the Child weigHt mANaGement for Ethnically diverse communities (CHANGE) study

Assessment Data collection method Data processing
Child assessments
 Sex, date of birth, postcode Obtained from weight management service records, verified by parent/child Home postcodes mapped to Index of Multiple Deprivation (IMD) 2015 scores [34], which were categorised into quintiles using nationally derived quintile cut offs
 Ethnicity, religion, language Reported by parent/carer  
 Height Marsden Weighing Group © Leicester Height Measure HM-250P (two measures taken, with a third measure if > 4 mm difference; two closest measures averaged) BMI calculated (kg/m2); age- and sex-specific z-scores derived for BMI, percentage body fat, and waist circumference using the relevant UK reference data [21, 35, 36]
 Weight and percentage body fat TANITA® BC-420MA body composition scales (light clothing, no shoes, empty bladder)
 Waist circumference Lufkin® W606 PM flexible steel tape measure (two measures taken; with a third measure if > 4 mm difference; two closest measures averaged)
 Pubertal status Simplified visual assessment of breast development in girls, facial hair in boys (based on the Tanner scale [37]). Parent report whether girls had started menstruating  
 Objective 7-day physical activity record Wrist-worn GeneActiv© (Activinsights, Cambs, UK) or waist-worn Actigraph GT3X + © (ActiGraph, Pensacola, FL) on non-dominant side of body for 7 days  
 Health-related quality of life Pediatric Quality of Life Inventory™ (PedsQL) [38, 39] (aged 5–7 or 8–12 years; self-report) Scales converted to 0–100 point scales, with higher scores indicating better quality of life; total score and subscale scores calculated (physical, emotional, social and school functioning)
The Child Health Utility 9D (CHU 9D) [40,41,42]—a preference based measure of health-related quality of life for use in children, allowing calculation of QALYsa  
 Body image questionnaire Figure Rating Scale (adapted for use in multi-ethnic populations) [43, 44] Body dissatisfaction scores derived by subtracting ‘ideal self’ from ‘self’ score (range of scores: − 8 to + 8; 0 indicates body satisfaction, negative values indicate child would like to be smaller, positive values indicate child would like to be larger)
 Child dietary patterns Children’s Dietary Questionnaire [45] (completed by parent/carer)—28-item questionnaire that measures intake patterns of a variety of healthy and unhealthy foods; adapted for use in the local population Scores calculated for intake of fruit and vegetables; dairy; sugar-sweetened beverages; and non-core foods
Parent assessments
 Ethnicity, religion, language, place of birth and when moved to UK, age when left full time education, highest educational qualification, employment status Self-reported  
 Family diet and activity habits Family Nutrition and Physical activity survey [46] Total score calculated
 Authoritative parenting style Authoritative parenting dimension of the Parenting Styles and Dimensions questionnaire [47] Subscale score from 1 to 5 calculated
 Parental self-efficacy Parental Locus of Control scale [48] Subscale score from 1 to 5 calculated
 Parental feeding practices Comprehensive Feeding Practices Questionnaire [49] (9 subscales included) Subscale scores from 1 to 5 calculated (child control, encouraging balance and variety, environment, modelling, monitoring, restriction for health, restriction for weight control, teaching about nutrition, and involvement)
 Height, weight, % body fat As for child BMI calculated (kg/m2)
Assessments with other family members
 Date of birth Self-reported (or proxy reported by parent for younger children)  
 Height, weight, % body fat As for child BMI calculated (kg/m2)
  1. aQALY quality-adjusted life year