The association between chronic periodontitis and vasculogenic erectile dysfunction: a systematic review and meta-analysis.
Level 3 - non-randomized controlled study
Systematic review and meta-analysis of observational studies
PubMed 26749274 · doi:10.1111/jcpe.12512
What was done
A systematic review and random-effects meta-analysis was performed searching PubMed, EMBASE, and Cochrane through May 22, 2015, to evaluate the association between chronic periodontitis and erectile dysfunction in observational studies. Two independent reviewers extracted data, and subgroup and sensitivity analyses were planned.
What was found
From 250 identified records, four observational studies were included, covering 38,111 cases and 174,807 controls. Random-effects meta-analysis showed a significant positive association between chronic periodontitis and erectile dysfunction (OR = 3.07, 95% CI: 1.87–5.05, p < 0.001). Statistical heterogeneity across the studies was extremely high (I² = 98%).
Why it matters
The findings synthesize observational evidence linking oral inflammatory disease to vasculogenic erectile dysfunction, highlighting periodontitis as a potential co-occurring vascular risk factor.
Limits
The analysis included only four observational studies, precluding causal conclusions. Statistical heterogeneity was severe (I² = 98%), and the abstract notes that differences in population social characteristics and unmeasured confounders limit the decisiveness of the pooled effect estimate.
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