Panagiotakos Demosthenes B, Lionis Christos, Zeimbekis Akis, Gelastopoulou Kyriaki, Papairakleous Natassa, Das Undurti N, Polychronopoulos Evangelos
Department of Nutrition-Dietetics, Harokopio University, Athens, Greece.
Yonsei Med J. 2009 Feb 28;50(1):31-8. doi: 10.3349/ymj.2009.50.1.31. Epub 2009 Feb 24.
We sought to evaluate the link between long-term tea intake and prevalence of type 2 diabetes mellitus, in a sample of elderly adults.
During 2005-2007, 300 men and women from Cyprus, 142 from Mitilini, 100 from Samothraki, 114 from Kefalonia, 131 from Crete, 150 from Corfu and 103 from Zakynthos (aged 65 to 100 years) were enrolled. Dietary habits (including tea consumption) were assessed through a food frequency questionnaire. Among various factors, fasting blood glucose was measured and prevalence of (type 2) diabetes mellitus was estimated.
54% of the participants reported that they consume tea at least once a week (mean intake 1.6 +/- 1.1 cup/day). The majority of the participants (98%) reported green or black tea consumption. The participants reported that they consume tea for at least 30 years of their life. After adjusting for various confounders, tea intake was inversely associated with lower blood glucose levels (b +/- SEM per 1 cup: - 5.9 +/- 2.6 mg/dL, p = 0.02). Moreover, multiple logistic regression revealed that moderate tea consumption (1 - 2 cups/day) was associated with 70% (95% CI 41% to 86%) lower odds of having (type 2) diabetes, irrespective of age, sex, body mass, smoking, physical activity status, dietary habits and other clinical characteristics.
The presented findings suggest that long-term tea intake is associated with reduced levels of fasting blood glucose and lower prevalence of diabetes, in a cohort of elderly people living in Mediterranean islands.
我们试图在一组老年人样本中评估长期饮茶与2型糖尿病患病率之间的联系。
在2005年至2007年期间，招募了来自塞浦路斯的300名男性和女性、来自米蒂利尼的142人、来自萨莫色雷斯的100人、来自凯法利尼亚的114人、来自克里特岛的131人、来自科孚岛的150人以及来自扎金索斯的103人（年龄在65至100岁之间）。通过食物频率问卷评估饮食习惯（包括茶的摄入量）。在各种因素中，测量空腹血糖并估算（2型）糖尿病的患病率。
54%的参与者报告称他们每周至少饮茶一次（平均摄入量为1.6±1.1杯/天）。大多数参与者（98%）报告饮用绿茶或红茶。参与者报告称他们一生中至少有30年的饮茶时间。在对各种混杂因素进行调整后，茶的摄入量与较低的血糖水平呈负相关（每1杯的b±标准误：-5.9±2.6mg/dL，p = 0.02）。此外，多因素逻辑回归显示，适度饮茶（1 - 2杯/天）与患（2型）糖尿病的几率降低70%（95%置信区间41%至86%）相关，与年龄、性别、体重、吸烟、身体活动状况、饮食习惯及其他临床特征无关。
所呈现的研究结果表明，在居住于地中海岛屿的老年人群体中，长期饮茶与空腹血糖水平降低及糖尿病患病率降低相关。
