Relación entre el consumo habitual de café y la mortalidad general y cardiovascular: Revisión de revisiones sistemáticas de la literatura

The objective of this study was to establish the relationship between habitual coffee consumption and all-cause and cardiovascular mortality. A systematic review was conducted using Medline, EMBASE, LILACS and Cochrane databases. Systematic reviews and meta-analysis were selected and analyzed. From 181 systematic reviews, 74 were selected by title and summary; after eliminating duplicates. According to the quality score of the AMSTAR tool, five articles were selected for information extraction and analysis. Moderate coffee consumption (3 or 4 cups) decreased overall mortality, compared to non-consumption (RR= 0.83, 95% CI: 0.79-0.88; I²= 83% for 3 cups, and RR= 0.84, 95% CI: 0.82-0.87; I²= 58% for 4 cups) and minimum consumption (RR= 0.88, 95% CI: 0.84-0.93; I²= 68.7% for 4 cups, and RR= 0.87, 95% CI: 0.83-0.91; I²= 59.8% between 3 and 4 cups). Cardiovascular mortality was reduced when compared to non-consumption, for 4 cups (RR= 0.80, 95% CI: 0.74-0.86; I²= 58%) and (RR= 0.83, 95% CI: 0.75-0.92; I²= 92%), and for 3 cups (RR= 0.81, 95 CI: 0.72-0.90; I²= 92%; RR= 0.79, 95% CI: 0.74-0.84; I²= 58%). In conclusion, habitual coffee consumption between 3 and 4 cups reduces the risk of all-cause and cardiovascular mortality.