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Table 2 Outcomes and corresponding measures

From: PREBIOTIC: a study protocol of a randomised controlled trial to assess prebiotic supplementation in kidney transplant recipients for preventing infections and gastrointestinal upset — a feasibility study

Outcome

Measure

Proportion of eligible patients who agree to take part in the study

% (95% CI)

Ability to successfully recruit 60 patients within 6 months

% (95% CI)

Proportion of participants adherent to prescribed study therapy (intervention or placebo) over the period of the study

% (95% CI)

Proportion of patients who continue to the prebiotic supplementation

% (95% CI)

Mean changes in the Gastrointestinal Symptom Rating Scale

Mean change (SD)

Proportion of patients who withdraw from the PREBIOTIC study

% (95% CI)

Proportion of participants providing two stool samples at designated times (the first week and between week 4 to week 6 post-kidney transplant) to assess gut microbiota changes

% (95% CI)

Proportion of participants providing two blood samples at designated times (the first week and week 6 post-kidney transplant)

% (95% CI)

Changes in the overall quality of life (measured by EQ-5D survey)

Mean change (SD)

Proportion of patients with at least one infectious event

% (95% CI)