Table 1 Indicators of primary outcomes assessed pre-intervention ^a

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 drinks^b

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