Liver International

Fatty liver disease categories shifted in Canadian adults

Within three years, 35.4% of adults in the highest-alcohol fatty liver category changed subtypes, compared with 22.6% in the lowest-alcohol category.

Cohort study of 16,560 Canadian adults, median 7.8 years, against lowest-alcohol fatty liver groupPopulations

Limit: Liver fat was estimated with a score rather than measured directly

Stake: Novo Nordisk supplied the product tested. AbbVie supplied the product tested. Authors also declare ties to 1 more company.

Edited by Boris Djordjevic · AgingResearch.News

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An observational cohort analysis studied 16,560 Canadian adults aged 45–85 at enrollment; 52.1% were female, and the median age was 58. Researchers estimated liver fat with a score combining blood tests and high blood pressure. They used self-reported alcohol intake and metabolic risk factors to classify fatty liver disease at three-year intervals.

Over a median 7.8 years, 1,041 participants died. The highest-alcohol fatty liver group had 6.41 deaths per 1,000 person-years, versus 5.78 in the lowest-alcohol group. Both groups had at least one metabolic risk factor, such as obesity or diabetes. In a model accounting for changing exposures and other factors, the adjusted hazard ratio—a measure of relative death risk—was 6.11 for the highest-alcohol group compared with the lowest-alcohol group.

Why it matters

For adults aging with fatty liver disease, the authors concluded that assessments repeated over time may improve estimates of future risk rather than relying on a single classification.

Caveats

This observational analysis cannot establish cause and effect, and liver fat was estimated with a score rather than measured directly. The cohort excluded institutionalized adults and people with cognitive impairment at enrollment, limiting applicability to those groups.