After an alcohol-related admission, little reliably improves follow-up

Design

Systematic review of 17 studies (12 randomised trials)

Population

Hospitalised adults with alcohol use disorder

Primary outcome

Linkage to outpatient follow-up after discharge

Effect

8 of 21 interventions improved linkage; randomised effects -8% to +30% absolute; low certainty

Hospitalisations for alcohol use disorder are common and carry high morbidity, and the handover to outpatient care is where readmissions are won or lost. This systematic review examined 17 studies covering 21 interventions, including 12 randomised trials, aimed at improving outpatient follow-up after discharge.

The results are sobering. Only 8 of the 21 interventions improved linkage to follow-up, effect sizes across the randomised trials ran from an 8% absolute fall to a 30% absolute rise, and the overall certainty of evidence was low because of bias and imprecision. What distinguished the interventions that worked was combining behavioural support and care coordination with either alcohol-use-disorder medication or social support, rather than any single component.

The lesson for a discharging team is not to rely on a referral alone. A bundled approach that starts medication in hospital and builds a coordinated plan is the better bet, while recognising the evidence base is thin.

• Systematic review of 17 studies and 21 interventions, including 12 randomised trials.
• Only 8 of 21 interventions improved linkage to outpatient follow-up.
• Randomised-trial effects ranged from an 8% absolute decrease to a 30% absolute increase.
• Interventions that worked combined behavioural support, care coordination and medication or social support.
• Start alcohol-use-disorder medication in hospital rather than relying on a referral alone.

Why it matters

It shows the common reflex, a follow-up referral, is on its own largely ineffective for these patients.

Don't overread it

The low certainty means this cannot rank specific programmes; it argues for bundled care, not for any particular protocol.

The statistics, in plain English

That only 8 of 21 interventions helped, with effects ranging from negative to strongly positive, signals real inconsistency rather than a reliable benefit. Low GRADE certainty means future trials could easily shift these estimates.

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