Post-diagnostic coffee and tea consumption and breast cancer survival.
Br J Cancer
; 124(11): 1873-1881, 2021 05.
Article
em En
| MEDLINE
| ID: mdl-33762714
ABSTRACT
BACKGROUND:
We examined the role of post-diagnostic coffee and tea consumption in relation to breast cancer-specific and all-cause mortality among women with breast cancer in prospective cohort studies.METHODS:
We identified 8900 women with stage I-III breast cancer from 1980 through 2010 in the Nurses' Health Study (NHS) and from 1991 through 2011 in the NHSII. Post-diagnostic coffee and tea consumption was assessed by a validated food frequency questionnaire every 4 years after diagnosis.RESULTS:
During up to 30 years of follow-up, we documented 1054 breast cancer-specific deaths and 2501 total deaths. Higher post-diagnostic coffee consumption was associated with a lower breast cancer-specific mortality compared with non-drinkers, >3 cups/day of coffee was associated with a 25% lower risk (hazard ratio (HR) = 0.75, 95% confidence interval (CI) = 0.59-0.96; Ptrend = 0.002). We also observed a lower all-cause mortality with coffee consumption compared with non-drinkers, >2 to 3 cups/day was associated with a 24% lower risk (HR = 0.76, 95% CI = 0.66-0.87) and >3 cups/day was associated with a 26% lower risk (HR = 0.74, 95% CI = 0.63-0.87, Ptrend < 0.0001). Post-diagnostic tea consumption was associated with a lower all-cause mortality compared with non-drinkers, >3 cups/day was associated with a 26% lower risk (HR = 0.74, 95% CI = 0.58-0.95; Ptrend = 0.04).CONCLUSIONS:
Among breast cancer survivors, higher post-diagnostic coffee consumption was associated with better breast cancer and overall survival. Higher post-diagnostic tea consumption may be related to better overall survival.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Chá
/
Neoplasias da Mama
/
Café
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Comportamento de Ingestão de Líquido
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article