Table 1 Search strategy adopted in the present systematic review and meta-analysis
From: Association between caffeine intake and erectile dysfunction: a meta-analysis of cohort studies
Search Strategy | Details |
|---|---|
Search string | “caffeine” OR “coffee” OR “caffeinated” AND “erectile” OR “erection” OR “penile” OR “erectile dysfunction” OR “penile dysfunction” “erectile disorders” OR “penile disorders” |
Databases | PubMed/MEDLINE, Web-of-Science, Embase, Scopus, manual search in Google Scholar |
Inclusion criteria | ‐ P (patients/population): general population/patients suffering from erectile dysfunction ‐ I (intervention/exposure): caffeine supplementation, coffee, tea, caffeinated drinks/beverages. ‐ C (comparisons/comparators): coffee consumers versus non-consumers; different kinds of coffee (caffeinated/decaffeinated) ‐ (outcome): incidence of erectile dysfunction ‐ S (study design): Cohort study |
Exclusion criteria | Experimental studies investigating in vitro or animal models. Study design: editorial, commentaries, expert opinions, letters to the editor, review articles, original non-cohort studies, and articles with insufficient details. |
Time filter | None (from inception) |
Language filter | None (any language) |