Evidence map›Paper›PMID 18204918›Full record

ArticleEuropean journal of nutrition2008

Effects of black and green tea consumption on blood glucose levels in non-obese elderly men and women from Mediterranean Islands (MEDIS epidemiological study).

Evangelos Polychronopoulos, Akis Zeimbekis, Christina-Maria Kastorini, Natassa Papairakleous, Ioanna Vlachou, Vassiliki Bountziouka, Demosthenes B Panagiotakos

Abstract read
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In one paragraph

Article in European journal of nutrition, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
4.6field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Trial
  5. Sage tea drinking improves lipid profile and antioxidant defences in humans.International journal of molecular sciences · 2009
    Trial
  6. The Intrinsic Virtues of EGCG, anMolecules (Basel, Switzerland) · 2020
    Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. New insights into insulin action and resistance in the vasculature.Annals of the New York Academy of Sciences · 2014
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Impact of dietary polyphenols on carbohydrate metabolism.International journal of molecular sciences · 2010
    Review
  18. Article
  19. Complementary and alternative medicine for the treatment of type 2 diabetes.Canadian family physician Medecin de famille canadien · 2009
    Review
  20. The Association between Concentrations of Green Tea and Blood Glucose Levels.Journal of clinical biochemistry and nutrition · 2009
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Evangelos PolychronopoulosDept. of Dietetics, Nutrition Science, Harokopio University, Athens, Greece.
Akis Zeimbekis
Christina-Maria Kastorini
Natassa Papairakleous
Ioanna Vlachou
Vassiliki Bountziouka
Demosthenes B Panagiotakos
Harokopio University of Athens · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundObesity and diabetes are metabolic disorders that affect a large amount of the elderly population and are related to increased cardiovascular risk. Tea intake has been associated with lower risk of mortality and morbidity in some, but not all studies. We evaluated the association between tea intake, blood glucose levels, in a sample of elderly adults.

methodsDuring 2005-2006, 300 men and women from Cyprus, 142 from Mitilini and 100 from Samothraki islands (aged 65-100 years) were enrolled. Dietary habits (including tea consumption) were assessed through a food frequency questionnaire. Among various factors, fasting blood glucose and body mass index (BMI) were measured.

resultsFifty-four percent of the participants reported that they consume tea at least once a week (mean intake 1.6 +/- 1.1 cup/day). A significant interaction was observed between tea intake, obesity status on glucose levels (P < 0.001). After adjusting for various confounders, tea intake was associated with lower blood glucose levels in non-obese (P for trend <0.001), but not in obese people (P = 0.24). Multiple logistic regression analysis revealed that moderate tea consumption (1-2 cups/day) was associated with 88% (95% CI 76-98%) lower odds of having diabetes among non-obese participants, irrespective of age, sex, smoking, physical activity status, dietary habits and other clinical characteristics.

conclusionTea consumption is associated with reduced levels of fasting blood glucose only among non-obese elderly people.

Indexed as

BeveragesTeaAgedAged, 80 and overBiomarkersBlood GlucoseDiabetes Mellitus, Type 2Feeding BehaviorFemaleHumansLogistic ModelsMaleMediterranean IslandsObesityRisk FactorsSurveys and QuestionnairesBiomarkersBlood GlucoseTea

Identifiers

PMID18204918
OpenAlexW2027022327

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.