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Table 1 Examples of data available from each trial

From: Protocol for the development of a repository of individual participant data from randomised controlled trials conducted in adult care homes (the Virtual International Care Homes Trials Archive (VICHTA))

Type of data

Examples of data available

Trial level

Study design

Duration of follow-up

Timing of assessment points

Intervention details

Region/geographical area covered

Care home level

Staff ratios; staff retention

Number of beds; bed occupancy rates

Case mix; funding mix; ownership

Participant level

Inclusion and exclusion criteria for residents

Age at randomisation

Sex

Ethnicity

BMI

Medical conditions, e.g. Y/N presence of dementia, diabetes, COPD, previous stroke

Time living in care home

Status at end of follow-up (alive/dead/lost to follow-up)

Cause of death

Health resource use during follow-up

Hospitalisations during follow-up

Medications

Advanced care planning

Outcome measures

Individual domain levels

Summary scores

Resident-reported, carer-reported or researcher-reported responses

Baseline measures

Follow-up measures