Table 2.
The association between type of tea consumption and SBP/DBP
| Green tea | Scented tea | Dark tea | Sweet tea | Black tea | |||||
|---|---|---|---|---|---|---|---|---|---|
| β(95%CI) | β(95%CI) | β(95%CI) | β(95%CI) | β(95%CI) | |||||
| Outcome = SBP | |||||||||
| Duration of tea consumption (years) | |||||||||
| ≤ 15 | -0.24(-0.77,0.30) | -1.42(-2.25,-0.59) | -2.66(-3.99,-1.33) | -5.35(-7.96,-2.73) | -0.65(-2.31,1.02) | ||||
| 16–40 | -1.88(-2.29,-1.47) | -1.88(-2.51,-1.25) | -1.79(-2.55,-1.02) | -5.08(-6.20,-3.97) | -2.63(-4.36,-0.91) | ||||
| > 40 | -2.98(-3.74,-2.21) | -2.17(-3.47,-0.87) | -4.19(-5.12,-3.26) | -5.64(-6.83,-4.45) | -5.76(-9.07,-2.45) | ||||
| Frequency of tea consumption (d/w) | |||||||||
| 1–2 | -1.35(-2.15,-0.55) | -2.48(-3.76,-1.20) | -2.41(-4.13,-0.70) | -5.18(-8.64,-1.71) | -0.59(-3.39,2.20) | ||||
| 3–5 | -0.70(-1.43,0.04) | -1.26(-2.30,-0.23) | -0.33(-1.92,1.27) | -6.26(-9.34,-3.18) | -2.14(-4.73,0.44) | ||||
| 6–7 | -1.76(-2.14,-1.39) | -1.82(-2.41,-1.22) | -2.90(-3.58,-2.21) | -5.30(-6.26,-4.33) | -2.43(-3.86,-1.01) | ||||
| Amount of tea consumption (g/d) | |||||||||
| ≤ 2.0 | -1.85(-2.44,-1.25) | -2.21(-3.01,-1.40) | -5.31(-6.41,-4.20) | -5.29(-6.42,-4.15) | -2.72(-5.17,-0.26) | ||||
| 2.1-4.0 | -1.67(-2.19,-1.15) | -1.60(-2.44,-0.75) | -4.61(-5.69,-3.53) | -7.18(-8.74,-5.62) | -3.06(-5.13,-0.99) | ||||
| 4.1-8.0 | -1.32(-1.90,-0.74) | -2.14(-3.13,-1.16) | -0.29(-1.26,0.67) | -6.61(-8.60,-4.62) | -2.67(-5.13,-0.22) | ||||
| ≥ 8.1 | -1.21(-1.85,-0.57) | -0.72(-1.80,0.37) | -1.81(-2.67,-0.96) | -3.19(-4.69,-1.69) | -0.22(-2.35,1.91) | ||||
| Outcome = DBP | |||||||||
| Duration of tea consumption (years) | |||||||||
| ≤ 15 | 0.55(0.21,0.89) | 0.31(-0.21,0.84) | -0.76(-1.61,0.09) | 1.41(-0.26,3.08) | -0.25(-1.31,0.81) | ||||
| 16–40 | 0.31(0.05,0.58) | 0.08(-0.33,0.48) | -0.96(-1.45,-0.47) | -0.53(-1.25,0.18) | -0.54(-1.64,0.56) | ||||
| > 40 | 0.30(-0.18,0.79) | -0.14(-0.97,0.69) | 0.45(-0.14,1.05) | 1.60(0.84,2.36) | -0.62(-2.73,1.49) | ||||
| Frequency of tea consumption (d/w) | |||||||||
| 1–2 | 0.08(-0.43,0.59) | -0.84(-1.65,-0.02) | -0.43(-1.52,0.67) | -0.18(-2.39,2.04) | -1.19(-2.98,0.59) | ||||
| 3–5 | 0.53(0.07,1.00) | 0.16(-0.50,0.82) | -1.02(-2.04,0.00) | -0.46(-2.43,1.51) | -0.09(-1.74,1.55) | ||||
| 6–7 | 0.44(0.20,0.68) | 0.37(-0.01,0.75) | -0.47(-0.91,-0.03) | 0.55(-0.07,1.16) | -0.24(-1.15,0.66) | ||||
| Amount of tea consumption (g/d) | |||||||||
| ≤ 2.0 | 0.33(-0.05,0.71) | 0.05(-0.46,0.56) | 0.31(-0.40,1.02) | 1.38(0.65,2.11) | -1.20(-2.76,0.37) | ||||
| 2.1-4.0 | 0.11(-0.23,0.44) | 0.13(-0.41,0.67) | -1.02(-1.72,-0.33) | -0.76(-1.75,0.24) | -0.73(-2.04,0.59) | ||||
| 4.1-8.0 | 0.65(0.29,1.02) | -0.06(-0.69,0.56) | -0.26(-0.88,0.35) | -0.45(-1.72,0.82) | 0.11(-1.45,1.67) | ||||
| ≥ 8.1 | 0.51(0.10,0.92) | 0.56(-0.13,1.26) | -0.86(-1.41,-0.31) | 0.06(-0.90,1.02) | 0.26(-1.09,1.62) | ||||
Note: Adjusted for age, sex, ethnicity, marital status, education, occupation, family income, BMI, MET, smoking status, alcohol use status, salt intake, vegetable intake, fruits intake, dairy intake, family history of hypertension, and physician-diagnosed diseases. β indicates unstandardized partial regression coefficient