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Table 1 Sources of variation in study procedures across research sites

From: ‘On Your Feet to Earn Your Seat’: update to randomised controlled trial protocol

 

London

Lincs

Surrey

Kent

Recruitment

 Host site

General practices x 2

Foundation trust

General hospital (outpatients)

General practices x 3

 Identification of participants

Direct mailout

Public advertisements

Direct mailout

Direct mailout

Data collection

 Data collection sites

Participant’s home

Participant’s home

Research clinic

Research clinic or participant’s home

 Objective health and wellbeing variables

Walking speed

Walking speed

Walking speed

Walking speed

Grip strength

Leg strength

Leg strength

Leg strength

Leg strength

Balance

Balance

Balance

Balance

Blood pressure

Blood pressure

Blood pressure

Blood pressure

 Physical activity and sedentary behaviour measures

Objective + self-report

Self-report

Self-report

Self-report

 Shopping vouchers given

Yes

No

No

No