correlational
negative effect
No Evidence

People whose hearts don't change rate as much are more likely to develop fatty liver disease than people whose hearts change rate more

Scientific Claim

Individuals with lower heart rate variability have higher incidence of non-alcoholic fatty liver disease compared to those with higher heart rate variability

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

association

Can only show association/correlation

Assessment Explanation

The claim uses 'associated with' and correctly describes the direction of the relationship without implying causation.

Source Excerpt

Low heart rate variability from 10-s electrocardiograms is associated with development of non-alcoholic fatty liver disease

Evidence from Studies

Supporting Evidence (1)

Why it supports

The study found a statistical association between lower HRV and higher NAFLD incidence. The study design supports this correlational claim but cannot determine causation.