An app-based coach improved self-management and mood in haemodialysis

Design

Randomised controlled trial

Population

96 adults on maintenance haemodialysis in China

Primary outcome

Self-management behaviour score at six months

Effect

+21.2 vs +7.9 points; difference 13.3 (95% CI 9.9–16.5)

A Chinese randomised trial assigned 96 patients on maintenance haemodialysis to usual care or usual care plus an 'E-Coach' delivered through a WeChat mini-application, which provided education, diet and exercise advice, medication reminders and regular online counselling.

Over six months, self-management scores rose by 21.2 points with the coach and 7.9 points with usual care, a difference of 13.3 (95% CI 9.9–16.5). Kidney-specific quality of life improved more, depression and anxiety scores fell more, and serum potassium and phosphate were lower in the coached group.

The trial was small, single-setting and unblinded, and its outcomes were mostly self-reported questionnaires. The abstract does not give effect sizes for potassium, phosphate or mood. Still, messaging-app support is inexpensive to deliver, and the direction of effect was consistent across outcomes.

• Consider structured messaging-based support for diet, medicines and reminders in haemodialysis patients.
• Target potassium and phosphate education in any digital programme; both improved here.
• Screen haemodialysis patients for depression and anxiety, which improved with coaching.
• Self-reported outcomes in an unblinded trial can overstate benefit.

Why it matters

Much of dialysis outcome depends on what happens between sessions.

Don't overread it

A small unblinded trial with self-reported outcomes cannot show effects on hospitalisation or survival.

The statistics, in plain English

A between-group difference of 13.3 points (9.9 to 16.5) on the self-management scale is clear of zero. With 96 patients and self-reported scales in an unblinded trial, the size of the effect may be smaller in practice.

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