Polyphenol intake and mortality risk: a re-analysis of the PREDIMED trial
Background: Polyphenols may lower the risk of cardiovascular disease (CVD) and other chronic diseases due to their antioxidant and anti-inflammatory properties, as well as their beneficial effects on blood pressure, lipids and insulin resistance. However, no previous epidemiological studies have e...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | info:eu-repo/semantics/article |
| Language: | eng |
| Published: |
BioMed Central
2014
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10171/37042 |
| _version_ | 1793400106652794880 |
|---|---|
| author | Tresserra-Rimbau, A. (Anna) Rimm, E.B. (Eric B.) Medina-Remon, A. (Alexander) Martinez-Gonzalez, M.A. (Miguel Ángel) Lopez-Sabater, M.C. (M. Carmen) Covas, M.I. (María Isabel) Corella, D. (Dolores) Salas-Salvado, J. (Jordi) Gomez-Gracia, E. (Enrique) Lapetra, J. (José) Aros, F. (Fernando) Fiol, M. (Miquel) Ros, E. (Emilio) Serra-Majem, L. (Luis) Pinto, X. (Xavier) Muñoz, M.A. (Miguel Angel) Gea, A. (Alfredo) Ruiz-Gutierrez, V. (Valentina) Estruch, R. (Ramón) Lamuela-Raventos, R.M. (Rosa Maria) |
| author_facet | Tresserra-Rimbau, A. (Anna) Rimm, E.B. (Eric B.) Medina-Remon, A. (Alexander) Martinez-Gonzalez, M.A. (Miguel Ángel) Lopez-Sabater, M.C. (M. Carmen) Covas, M.I. (María Isabel) Corella, D. (Dolores) Salas-Salvado, J. (Jordi) Gomez-Gracia, E. (Enrique) Lapetra, J. (José) Aros, F. (Fernando) Fiol, M. (Miquel) Ros, E. (Emilio) Serra-Majem, L. (Luis) Pinto, X. (Xavier) Muñoz, M.A. (Miguel Angel) Gea, A. (Alfredo) Ruiz-Gutierrez, V. (Valentina) Estruch, R. (Ramón) Lamuela-Raventos, R.M. (Rosa Maria) |
| author_sort | Tresserra-Rimbau, A. (Anna) |
| collection | DSpace |
| description | Background: Polyphenols may lower the risk of cardiovascular disease (CVD) and other chronic diseases due to
their antioxidant and anti-inflammatory properties, as well as their beneficial effects on blood pressure, lipids and
insulin resistance. However, no previous epidemiological studies have evaluated the relationship between the intake
of total polyphenols intake and polyphenol subclasses with overall mortality. Our aim was to evaluate whether
polyphenol intake is associated with all-cause mortality in subjects at high cardiovascular risk.
Methods: We used data from the PREDIMED study, a 7,447-participant, parallel-group, randomized, multicenter,
controlled five-year feeding trial aimed at assessing the effects of the Mediterranean Diet in primary prevention of
cardiovascular disease. Polyphenol intake was calculated by matching food consumption data from repeated food
frequency questionnaires (FFQ) with the Phenol-Explorer database on the polyphenol content of each reported
food. Hazard ratios (HR) and 95% confidence intervals (CI) between polyphenol intake and mortality were estimated
using time-dependent Cox proportional hazard models.
Results: Over an average of 4.8 years of follow-up, we observed 327 deaths. After multivariate adjustment, we
found a 37% relative reduction in all-cause mortality comparing the highest versus the lowest quintiles of total
polyphenol intake (hazard ratio (HR) = 0.63; 95% CI 0.41 to 0.97; P for trend = 0.12). Among the polyphenol subclasses,
stilbenes and lignans were significantly associated with reduced all-cause mortality (HR =0.48; 95% CI 0.25 to 0.91; P for
trend = 0.04 and HR = 0.60; 95% CI 0.37 to 0.97; P for trend = 0.03, respectively), with no significant associations apparent
in the rest (flavonoids or phenolic acids).
Conclusions: Among high-risk subjects, those who reported a high polyphenol intake, especially of stilbenes and
lignans, showed a reduced risk of overall mortality compared to those with lower intakes. These results may be useful
to determine optimal polyphenol intake or specific food sources of polyphenols that may reduce the risk of all-cause
mortality.
Clinical trial registration: ISRCTN35739639. |
| format | info:eu-repo/semantics/article |
| id | oai:dadun.unav.edu:10171-37042 |
| institution | Universidad de Navarra |
| language | eng |
| publishDate | 2014 |
| publisher | BioMed Central |
| record_format | dspace |
| spelling | oai:dadun.unav.edu:10171-370422023-03-13T11:03:59Z Polyphenol intake and mortality risk: a re-analysis of the PREDIMED trial Tresserra-Rimbau, A. (Anna) Rimm, E.B. (Eric B.) Medina-Remon, A. (Alexander) Martinez-Gonzalez, M.A. (Miguel Ángel) Lopez-Sabater, M.C. (M. Carmen) Covas, M.I. (María Isabel) Corella, D. (Dolores) Salas-Salvado, J. (Jordi) Gomez-Gracia, E. (Enrique) Lapetra, J. (José) Aros, F. (Fernando) Fiol, M. (Miquel) Ros, E. (Emilio) Serra-Majem, L. (Luis) Pinto, X. (Xavier) Muñoz, M.A. (Miguel Angel) Gea, A. (Alfredo) Ruiz-Gutierrez, V. (Valentina) Estruch, R. (Ramón) Lamuela-Raventos, R.M. (Rosa Maria) Polyphenol intake All-cause mortality Predimed Mediterranean diet Stilbenes Lignans Background: Polyphenols may lower the risk of cardiovascular disease (CVD) and other chronic diseases due to their antioxidant and anti-inflammatory properties, as well as their beneficial effects on blood pressure, lipids and insulin resistance. However, no previous epidemiological studies have evaluated the relationship between the intake of total polyphenols intake and polyphenol subclasses with overall mortality. Our aim was to evaluate whether polyphenol intake is associated with all-cause mortality in subjects at high cardiovascular risk. Methods: We used data from the PREDIMED study, a 7,447-participant, parallel-group, randomized, multicenter, controlled five-year feeding trial aimed at assessing the effects of the Mediterranean Diet in primary prevention of cardiovascular disease. Polyphenol intake was calculated by matching food consumption data from repeated food frequency questionnaires (FFQ) with the Phenol-Explorer database on the polyphenol content of each reported food. Hazard ratios (HR) and 95% confidence intervals (CI) between polyphenol intake and mortality were estimated using time-dependent Cox proportional hazard models. Results: Over an average of 4.8 years of follow-up, we observed 327 deaths. After multivariate adjustment, we found a 37% relative reduction in all-cause mortality comparing the highest versus the lowest quintiles of total polyphenol intake (hazard ratio (HR) = 0.63; 95% CI 0.41 to 0.97; P for trend = 0.12). Among the polyphenol subclasses, stilbenes and lignans were significantly associated with reduced all-cause mortality (HR =0.48; 95% CI 0.25 to 0.91; P for trend = 0.04 and HR = 0.60; 95% CI 0.37 to 0.97; P for trend = 0.03, respectively), with no significant associations apparent in the rest (flavonoids or phenolic acids). Conclusions: Among high-risk subjects, those who reported a high polyphenol intake, especially of stilbenes and lignans, showed a reduced risk of overall mortality compared to those with lower intakes. These results may be useful to determine optimal polyphenol intake or specific food sources of polyphenols that may reduce the risk of all-cause mortality. Clinical trial registration: ISRCTN35739639. 2014-11-12T17:53:53Z 2014-11-12T17:53:53Z 2014 info:eu-repo/semantics/article https://hdl.handle.net/10171/37042 eng info:eu-repo/semantics/openAccess application/pdf BioMed Central |
| spellingShingle | Polyphenol intake All-cause mortality Predimed Mediterranean diet Stilbenes Lignans Tresserra-Rimbau, A. (Anna) Rimm, E.B. (Eric B.) Medina-Remon, A. (Alexander) Martinez-Gonzalez, M.A. (Miguel Ángel) Lopez-Sabater, M.C. (M. Carmen) Covas, M.I. (María Isabel) Corella, D. (Dolores) Salas-Salvado, J. (Jordi) Gomez-Gracia, E. (Enrique) Lapetra, J. (José) Aros, F. (Fernando) Fiol, M. (Miquel) Ros, E. (Emilio) Serra-Majem, L. (Luis) Pinto, X. (Xavier) Muñoz, M.A. (Miguel Angel) Gea, A. (Alfredo) Ruiz-Gutierrez, V. (Valentina) Estruch, R. (Ramón) Lamuela-Raventos, R.M. (Rosa Maria) Polyphenol intake and mortality risk: a re-analysis of the PREDIMED trial |
| title | Polyphenol intake and mortality risk: a re-analysis of the PREDIMED trial |
| title_full | Polyphenol intake and mortality risk: a re-analysis of the PREDIMED trial |
| title_fullStr | Polyphenol intake and mortality risk: a re-analysis of the PREDIMED trial |
| title_full_unstemmed | Polyphenol intake and mortality risk: a re-analysis of the PREDIMED trial |
| title_short | Polyphenol intake and mortality risk: a re-analysis of the PREDIMED trial |
| title_sort | polyphenol intake and mortality risk: a re-analysis of the predimed trial |
| topic | Polyphenol intake All-cause mortality Predimed Mediterranean diet Stilbenes Lignans |
| url | https://hdl.handle.net/10171/37042 |
| work_keys_str_mv | AT tresserrarimbauaanna polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT rimmebericb polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT medinaremonaalexander polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT martinezgonzalezmamiguelangel polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT lopezsabatermcmcarmen polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT covasmimariaisabel polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT corelladdolores polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT salassalvadojjordi polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT gomezgraciaeenrique polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT lapetrajjose polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT arosffernando polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT fiolmmiquel polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT roseemilio polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT serramajemlluis polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT pintoxxavier polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT munozmamiguelangel polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT geaaalfredo polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT ruizgutierrezvvalentina polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT estruchrramon polyphenolintakeandmortalityriskareanalysisofthepredimedtrial AT lamuelaraventosrmrosamaria polyphenolintakeandmortalityriskareanalysisofthepredimedtrial |