Tea consumption and the risk of depression: a meta-analysis of observational studies.
Aust N Z J Psychiatry
; 49(4): 334-45, 2015 Apr.
Article
en En
| MEDLINE
| ID: mdl-25657295
ABSTRACT
OBJECTIVE:
Whether tea consumption decreases the risk of depression remains controversial. We performed a meta-analysis of findings from observational studies to evaluate the association between tea consumption and depression risk.METHOD:
Embase, PubMed, and Chinese National Knowledge Infrastructure databases were searched from their inception through August 2014 for observational studies that had reported the association between tea consumption and depression risk. We used a fixed effects model when heterogeneity was negligible and a random effect model when heterogeneity was significant to calculate the summary relative risk estimates (RRs) and 95% confidence intervals (CIs).RESULTS:
Eleven studies with 13 reports were eligible for inclusion in the meta-analysis (22,817 participants with 4,743 cases of depression). Compared to individuals with lower tea consumption, those with higher tea consumption had a pooled RR of depression risk at 0.69 (95% CI 0.63-0.75). Eight reports were included in the dose-response analysis of tea consumption and depression risk (10,600 participants with 2,107 cases). There was a linear association between tea consumption and the risk of depression, with an increment of 3 cups/day in tea consumption associated with a decrease in the risk of depression of 37% (RR = 0.63, 95% CI 0.55-0.71).CONCLUSION:
Tea consumption is associated with a decreased risk of depression.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Té
/
Depresión
/
Conducta de Ingestión de Líquido
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
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Systematic_reviews
Límite:
Humans
País/Región como asunto:
Asia
Idioma:
En
Revista:
Aust N Z J Psychiatry
Año:
2015
Tipo del documento:
Article
País de afiliación:
China