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Table 2 Association between tea consumption and NAFLD *

From: Daily tea drinking is not associated with newly diagnosed non-alcoholic fatty liver disease in Chinese adults: the Tianjin chronic low-grade systemic inflammation and health cohort study

TeaCategories of tea consumption (n = 19,350)P for trend a
Almost never<  1 cup/week1–6 cups/week≥ 1 cup/day
Green tea
 No. of participants6716496947642910 
 No. of NAFLD patients (%)1198 (17.84)881 (17.73)976 (20.49)706 (24.34) 
  Crude modelRef0.99 (0.90, 1.09) b1.19 (1.08, 1.30)1.48 (1.33, 1.65)< 0.0001
  Adjusted model 1 cRef0.99 (0.88, 1.12)0.98 (0.87, 1.11)0.99 (0.86, 1.13)0.77
  Adjusted model 2 dRef1.05 (0.90, 1.22)1.04 (0.89, 1.20)1.04 (0.88, 1.22)0.65
Oolong tea
 No. of participants9083493735511779 
 No. of NAFLD patients (%)1669 (18.37)895 (18.13)749 (21.09)448 (25.18) 
  Crude modelRef0.98 (0.90, 1.08)1.19 (1.08, 1.31)1.50 (1.33, 1.68)< 0.0001
  Adjusted model 1 cRef0.94 (0.84, 1.05)0.95 (0.84, 1.07)1.05 (0.90, 1.22)0.99
  Adjusted model 2 dRef0.92 (0.79, 1.07)0.97 (0.83, 1.15)1.04 (0.86, 1.25)0.80
Black tea
 No. of participants9227515433501619 
 No. of NAFLD patients (%)1740 (18.86)968 (18.78)681 (20.33)372 (22.98) 
  Crude modelRef1.00 (0.91, 1.09)1.10 (0.99, 1.21)1.28 (1.13, 1.46)< 0.001
  Adjusted model 1 cRef1.04 (0.93, 1.16)0.90 (0.79, 1.02)1.04 (0.89, 1.22)0.57
  Adjusted model 2 dRef1.10 (0.96, 1.26)0.91 (0.78, 1.07)0.99 (0.83, 1.19)0.42
Jasmine tea
 No. of participants10,736476423411509 
 No. of NAFLD patients (%)2033 (18.94)849 (17.82)515 (22.00)364 (24.12) 
  Crude modelRef0.93 (0.85, 1.01) b1.21 (1.08, 1.35)1.36 (1.20, 1.54)< 0.001
  Adjusted model 1 cRef0.91 (0.82, 1.02)0.98 (0.85, 1.12)0.96 (0.82, 1.13)0.46
  Adjusted model 2 dRef0.90 (0.79, 1.03)1.06 (0.90, 1.24)0.93 (0.78, 1.11)0.68
  1. * NAFLD, non-alcoholic fatty liver disease;
  2. a Multiple conditional logistic regression analysis
  3. b Odds ratios (95% confidence interval) (all such values)
  4. c Adjusted for age, BMI, and sex
  5. d Adjusted for age, BMI, sex, energy intake (kJ/d), type 2 diabetes, hypertension, hyperlipidaemia, physical activity, educational level, household income, smoking status, drinking status, employment status, family history of CVD, cancer, and diabetes, intake of sweet foods pattern, vegetable pattern and animal foods pattern, and consumption of other two kinds of tea