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Table 1 Indicators of primary outcomes assessed pre-intervention a

From: The Well London program - a cluster randomized trial of community engagement for improving health behaviors and mental wellbeing: baseline survey results

Age group Outcome Indicator Measurement tool
Adults Healthy eating* Binary: consumption of five or more portions of fruit and vegetables per day (‘five-a-day’) Food frequency questionnaire
Adults Healthy physical activity* Binary: doing five or more sessions of moderate intensity physical activity per week lasting at least 30 min (‘five-a-week’) International Physical Activity Questionnaire
Adults Mental wellbeing - positive Continuous: Hope Scale score Hope Scale
Adults Mental wellbeing - negative Binary: reports feeling anxious or depressed EQ5D (1 item)
Adults Mental wellbeing - negative Binary: reports visiting GP for anxiety or depression or other emotional problem Individual questionnaire item
Adolescents Healthy eating - positive Binary: frequent consumption of fruit Individual questionnaire item
Adolescents Healthy eating negative Continuous: score summarizing frequency of consumption of chips, sweets or chocolate, and s ugar sweetened soft drinksb Individual questionnaire items
Adolescents Healthy physical activity* Continuous: IPAQ score Physical Activity Questionnaire for Adolescents
Adolescents Mental health - negative* Binary: score above threshold for normal mental health Strengths and Difficulties Questionnaire
Adolescents Mental health - positive wellbeing* Continuous: positive affect score and negative affect score Positive and negative affect scale
  1. aOnly those outcomes marked with an asterisk will be primary trial outcomes at follow-up. Mental wellbeing in adults will be assessed using the GHQ12 [67] and the Warwick-Edinburgh Mental Wellbeing Scale [68, 69].
  2. bRespondents completed a Likert scale to indicate the frequency of consuming these items; the overall unhealthy eating score was calculated as the mean response across the three items (scores: 1, ‘hardly ever’; 2, ‘once or twice a week’; 3, ‘3-4 times a week’; 4, ‘almost every day’; 5, ‘every day without exception’.