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Table 1 Baseline characteristics of the study sample (n = 676) by tea consumption (high vs. low)

From: Tea consumption and measures of attention and psychomotor speed in the very old: the Newcastle 85+ longitudinal study

  Low Tea Consumption (n = 213) High Tea Consumption (n = 463) p-value*
Demographics
 Mean age, years (SD) 85.4 (0.4) 85.5 (0.4) 0.0991
 Mean education, years (SD) 9.8 (1.8) 9.9 (1.8) 0.8201
 % Female (n) 54.9 (117) 93.9 (296) 0.026
Health
 Mean body mass index (SD) 24.5 (4.6) 24.5 (4.2) 0.9201
 Mean total cholesterol, mmol/l (SD) 4.8 (1.2) 4.8 (1.2) 0.9641
 Mean waist-to-hip ratio (SD) 0.9 (0.1) 0.9 (0.1) 0.4601
 % Hypertension (n) 54.7 (116) 62.2 (288) 0.066
 % Severe depression (n) 7.2 (15) 8.6 (39) 0.817
 % Cardiac disease (n) 46.7 (n = 99) 48.0 (n = 222) 0.763
 % Cerebrovascular disease (n) 17.5 (n = 37) 20.3 (n = 94) 0.385
 % Diabetes (n) 12.7 (n = 27) 13.8 (n = 64) 0.701
 % PVD (n) 6.6 (n = 14) 7.6% (n = 35) 0.657
 % Total disease count ≥2 (n) 20.8 (n = 44) 22.5 (n = 104) 0.664
Lifestyle
 % High physical activity (n) 34.9 (74) 36.8 (170) 0.721
 % Current smoking (n) 8.0 (17) 3.5 (16) 0.020
 % Heavy alcohol use (n) 7.1 (10) 18.1 (61) 0.008
  1. * Chi-squared test. 1 Independent sample t-test