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Table 2 Data elements to be collected, study timepoints (T0, T1, T2) target groups

From: Effects of a multi-level intervention on the pattern of physical activity among in-school adolescents in Oyo state Nigeria: a cluster randomised trial

Description of outcome measures

Method

Type of variable

Timing

Target group

Demographic characteristics, Socio-economic status

Questionnaire

Ordered categorical

T0 T1 T2

Adolescents

Knowledge, attitude, beliefs on nutrition and PA

Questionnaire

Ordered categorical

T0 T1 T2

Adolescents

Self-reported physical activity levels

Physical Activity Questionnaire (PAQ –A) for adolescents

Continuos

T0 T1 T2

Adolescents

Ordered categorical

PA Self efficacy

Questionnaire

Ordered categorical

T0 T1 T2

Adolescents

Perceived behavioural control and intention

Questionnaire

Ordered categorical

T0 T1 T2

Adolescents

Fitness level measured using the 20-mSRT

20-mSRT

Ordered categorical

T0 T1 T2

Adolescents

Step count (average steps/day)

Pedometers

Continuous

T0 T1 T2

Adolescents

Anthropometric and Physical assessments (BP, Ht, Wgt, BMI)

Brief physical assessment

Continuous

T0 T1 T2

Adolescents

Social Norms and Social support,

Questionnaire

Ordered categorical

T0 T1 T2

Adolescents, Teachers, School Heads

Built environment

Observation and checklist

Ordered categorical

T0

School Environment

Policy or programme changes

Key Informant interviews

Qualitative

T0 T1 T2

School Heads, Officials of Govt. and Ministries Policy Makers,