Meta-analysis links high homocysteine levels to worse cognitive scores in depression patients

This systematic review and meta-analysis examined the relationship between homocysteine levels and cognitive function in a population of 1,269 patients with depression. The setting and follow-up duration were not reported in the source data. The primary outcome assessed was cognitive function, with no secondary outcomes specified. The analysis pooled data to determine the strength of the association between the exposure and the outcome.

The main result indicated a significant inverse association between homocysteine levels and cognitive scores. The effect size was reported as r = -0.41, with a 95% confidence interval ranging from -0.57 to -0.22. This suggests that higher homocysteine levels are linked to lower cognitive scores in this specific group.

Limitations of the evidence include the observational nature of the data, which prevents causal conclusions. Adverse events, discontinuations, and tolerability were not reported. Funding sources and conflicts of interest were also not reported. The practice relevance and certainty of the findings were not explicitly stated by the authors.