| Title |
Green tea consumption and breast cancer risk or recurrence: a meta-analysis
|
|---|---|
| Published in |
Breast Cancer Research and Treatment, May 2009
|
| DOI | 10.1007/s10549-009-0415-0 |
| Pubmed ID | |
| Authors |
Adeyemi A. Ogunleye, Fei Xue, Karin B. Michels |
| Abstract |
Green tea is a commonly consumed beverage in Asia and has been suggested to have anti-inflammatory and possible anti-carcinogenic properties in laboratory studies. We sought to examine the association between green tea consumption and risk of breast cancer incidence or recurrence, using all available epidemiologic evidence to date. We conducted a systematic search of five databases and performed a meta-analysis of studies of breast cancer risk and recurrence published between 1998 and 2009, encompassing 5,617 cases of breast cancer. Summary relative risks (RR) were calculated using a fixed effects model, and tests of heterogeneity across combined studies were conducted. We identified two studies of breast cancer recurrence and seven studies of breast cancer incidence. Increased green tea consumption (more than three cups a day) was inversely associated with breast cancer recurrence (Pooled RR = 0.73, 95% CI: 0.56-0.96). An analysis of case-control studies of breast cancer incidence suggested an inverse association with a pooled RR of 0.81 (95% CI: 0.75, 0.88) while no association was found among cohort studies of breast cancer incidence. Combining all studies of breast cancer incidence resulted in significant heterogeneity. Available epidemiologic evidence supports the hypothesis that increased green tea consumption may be inversely associated with risk of breast cancer recurrence. The association between green tea consumption and breast cancer incidence remains unclear based on the current evidence. |
X Demographics
The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Brazil | 1 | 33% |
| Kuwait | 1 | 33% |
| Unknown | 1 | 33% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 67% |
| Practitioners (doctors, other healthcare professionals) | 1 | 33% |
Mendeley readers
The data shown below were compiled from readership statistics for 119 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Canada | 3 | 3% |
| Switzerland | 1 | <1% |
| Germany | 1 | <1% |
| India | 1 | <1% |
| France | 1 | <1% |
| Unknown | 112 | 94% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 23 | 19% |
| Researcher | 19 | 16% |
| Student > Master | 13 | 11% |
| Other | 11 | 9% |
| Student > Postgraduate | 8 | 7% |
| Other | 27 | 23% |
| Unknown | 18 | 15% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 34 | 29% |
| Agricultural and Biological Sciences | 25 | 21% |
| Biochemistry, Genetics and Molecular Biology | 11 | 9% |
| Nursing and Health Professions | 7 | 6% |
| Chemistry | 4 | 3% |
| Other | 14 | 12% |
| Unknown | 24 | 20% |
Attention Score in Context
This research output has an Altmetric Attention Score of 39. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 20 April 2023.
All research outputs
#934,869
of 23,578,918 outputs
Outputs from Breast Cancer Research and Treatment
#104
of 4,738 outputs
Outputs of similar age
#2,290
of 93,787 outputs
Outputs of similar age from Breast Cancer Research and Treatment
#1
of 21 outputs
Altmetric has tracked 23,578,918 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 96th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 4,738 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.2. This one has done particularly well, scoring higher than 97% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 93,787 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 97% of its contemporaries.
We're also able to compare this research output to 21 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 95% of its contemporaries.