Green and black tea intake in relation to prostate cancer risk among Singapore Chinese

Julia A. Montague, Lesley M. Butler, Anna H. Wu, Jeanine M. Genkinger, Woon Puay Koh, Alvin S. Wong, Renwei Wang, Jian Min Yuan, Mimi C. Yu

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Purpose Tea is one of the most commonly consumed beverages worldwide. To date, observational data from prospective cohort studies investigating the relationship between green and black tea intake and prostate cancer risk are sparse and equivocal. In a population-based, prospective cohort study of Chinese men in Singapore, we investigated the relationship between green and black tea intake and prostate cancer risk. Methods Tea consumption data for 27,293 men were collected at baseline (between 1993 and 1998) using a validated food frequency questionnaire. After an average of 11.2 years of follow-up, 298 men had developed prostate cancer. Proportional hazards regression methods were used to assess the associations between tea intake and prostate cancer risk. Results There was no association between daily green tea intake and prostate cancer risk, compared with no green tea intake [hazard ratio (HR) = 1.08; 95 % confidence interval (CI) 0.79, 1.47]. For black tea, a statistically significant positive association and trend were observed for daily intake compared with no black tea intake (HR = 1.41, 95 % CI 1.03, 1.92; p for trend\0.01) Conclusions Few prospective data are available from populations that have both a high level and wide range of black and green tea intake; this study represents a unique opportunity to evaluate their individual effects on prostate cancer risk. Our findings support the notion that green tea intake does not protect against prostate cancer and that black tea intake may increase prostate cancer risk.

Original languageEnglish (US)
Pages (from-to)1635-1641
Number of pages7
JournalCancer Causes and Control
Volume23
Issue number10
DOIs
StatePublished - Oct 2012
Externally publishedYes

Fingerprint

Singapore
Tea
Prostatic Neoplasms
Cohort Studies
Prospective Studies
Confidence Intervals
Beverages
Population

Keywords

  • Black tea
  • Diet
  • Green tea
  • Prospective cohort
  • Prostate cancer
  • Singapore Chinese

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Montague, J. A., Butler, L. M., Wu, A. H., Genkinger, J. M., Koh, W. P., Wong, A. S., ... Yu, M. C. (2012). Green and black tea intake in relation to prostate cancer risk among Singapore Chinese. Cancer Causes and Control, 23(10), 1635-1641. https://doi.org/10.1007/s10552-012-0041-8

Green and black tea intake in relation to prostate cancer risk among Singapore Chinese. / Montague, Julia A.; Butler, Lesley M.; Wu, Anna H.; Genkinger, Jeanine M.; Koh, Woon Puay; Wong, Alvin S.; Wang, Renwei; Yuan, Jian Min; Yu, Mimi C.

In: Cancer Causes and Control, Vol. 23, No. 10, 10.2012, p. 1635-1641.

Research output: Contribution to journalArticle

Montague, JA, Butler, LM, Wu, AH, Genkinger, JM, Koh, WP, Wong, AS, Wang, R, Yuan, JM & Yu, MC 2012, 'Green and black tea intake in relation to prostate cancer risk among Singapore Chinese', Cancer Causes and Control, vol. 23, no. 10, pp. 1635-1641. https://doi.org/10.1007/s10552-012-0041-8
Montague, Julia A. ; Butler, Lesley M. ; Wu, Anna H. ; Genkinger, Jeanine M. ; Koh, Woon Puay ; Wong, Alvin S. ; Wang, Renwei ; Yuan, Jian Min ; Yu, Mimi C. / Green and black tea intake in relation to prostate cancer risk among Singapore Chinese. In: Cancer Causes and Control. 2012 ; Vol. 23, No. 10. pp. 1635-1641.
@article{58c7fc7ce03349879082dc18c3c4b09f,
title = "Green and black tea intake in relation to prostate cancer risk among Singapore Chinese",
abstract = "Purpose Tea is one of the most commonly consumed beverages worldwide. To date, observational data from prospective cohort studies investigating the relationship between green and black tea intake and prostate cancer risk are sparse and equivocal. In a population-based, prospective cohort study of Chinese men in Singapore, we investigated the relationship between green and black tea intake and prostate cancer risk. Methods Tea consumption data for 27,293 men were collected at baseline (between 1993 and 1998) using a validated food frequency questionnaire. After an average of 11.2 years of follow-up, 298 men had developed prostate cancer. Proportional hazards regression methods were used to assess the associations between tea intake and prostate cancer risk. Results There was no association between daily green tea intake and prostate cancer risk, compared with no green tea intake [hazard ratio (HR) = 1.08; 95 {\%} confidence interval (CI) 0.79, 1.47]. For black tea, a statistically significant positive association and trend were observed for daily intake compared with no black tea intake (HR = 1.41, 95 {\%} CI 1.03, 1.92; p for trend\0.01) Conclusions Few prospective data are available from populations that have both a high level and wide range of black and green tea intake; this study represents a unique opportunity to evaluate their individual effects on prostate cancer risk. Our findings support the notion that green tea intake does not protect against prostate cancer and that black tea intake may increase prostate cancer risk.",
keywords = "Black tea, Diet, Green tea, Prospective cohort, Prostate cancer, Singapore Chinese",
author = "Montague, {Julia A.} and Butler, {Lesley M.} and Wu, {Anna H.} and Genkinger, {Jeanine M.} and Koh, {Woon Puay} and Wong, {Alvin S.} and Renwei Wang and Yuan, {Jian Min} and Yu, {Mimi C.}",
year = "2012",
month = "10",
doi = "10.1007/s10552-012-0041-8",
language = "English (US)",
volume = "23",
pages = "1635--1641",
journal = "Cancer Causes and Control",
issn = "0957-5243",
publisher = "Springer Netherlands",
number = "10",

}

TY - JOUR

T1 - Green and black tea intake in relation to prostate cancer risk among Singapore Chinese

AU - Montague, Julia A.

AU - Butler, Lesley M.

AU - Wu, Anna H.

AU - Genkinger, Jeanine M.

AU - Koh, Woon Puay

AU - Wong, Alvin S.

AU - Wang, Renwei

AU - Yuan, Jian Min

AU - Yu, Mimi C.

PY - 2012/10

Y1 - 2012/10

N2 - Purpose Tea is one of the most commonly consumed beverages worldwide. To date, observational data from prospective cohort studies investigating the relationship between green and black tea intake and prostate cancer risk are sparse and equivocal. In a population-based, prospective cohort study of Chinese men in Singapore, we investigated the relationship between green and black tea intake and prostate cancer risk. Methods Tea consumption data for 27,293 men were collected at baseline (between 1993 and 1998) using a validated food frequency questionnaire. After an average of 11.2 years of follow-up, 298 men had developed prostate cancer. Proportional hazards regression methods were used to assess the associations between tea intake and prostate cancer risk. Results There was no association between daily green tea intake and prostate cancer risk, compared with no green tea intake [hazard ratio (HR) = 1.08; 95 % confidence interval (CI) 0.79, 1.47]. For black tea, a statistically significant positive association and trend were observed for daily intake compared with no black tea intake (HR = 1.41, 95 % CI 1.03, 1.92; p for trend\0.01) Conclusions Few prospective data are available from populations that have both a high level and wide range of black and green tea intake; this study represents a unique opportunity to evaluate their individual effects on prostate cancer risk. Our findings support the notion that green tea intake does not protect against prostate cancer and that black tea intake may increase prostate cancer risk.

AB - Purpose Tea is one of the most commonly consumed beverages worldwide. To date, observational data from prospective cohort studies investigating the relationship between green and black tea intake and prostate cancer risk are sparse and equivocal. In a population-based, prospective cohort study of Chinese men in Singapore, we investigated the relationship between green and black tea intake and prostate cancer risk. Methods Tea consumption data for 27,293 men were collected at baseline (between 1993 and 1998) using a validated food frequency questionnaire. After an average of 11.2 years of follow-up, 298 men had developed prostate cancer. Proportional hazards regression methods were used to assess the associations between tea intake and prostate cancer risk. Results There was no association between daily green tea intake and prostate cancer risk, compared with no green tea intake [hazard ratio (HR) = 1.08; 95 % confidence interval (CI) 0.79, 1.47]. For black tea, a statistically significant positive association and trend were observed for daily intake compared with no black tea intake (HR = 1.41, 95 % CI 1.03, 1.92; p for trend\0.01) Conclusions Few prospective data are available from populations that have both a high level and wide range of black and green tea intake; this study represents a unique opportunity to evaluate their individual effects on prostate cancer risk. Our findings support the notion that green tea intake does not protect against prostate cancer and that black tea intake may increase prostate cancer risk.

KW - Black tea

KW - Diet

KW - Green tea

KW - Prospective cohort

KW - Prostate cancer

KW - Singapore Chinese

UR - http://www.scopus.com/inward/record.url?scp=84867022382&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84867022382&partnerID=8YFLogxK

U2 - 10.1007/s10552-012-0041-8

DO - 10.1007/s10552-012-0041-8

M3 - Article

C2 - 22864870

AN - SCOPUS:84867022382

VL - 23

SP - 1635

EP - 1641

JO - Cancer Causes and Control

JF - Cancer Causes and Control

SN - 0957-5243

IS - 10

ER -