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Table 2 The association between type of tea consumption and SBP/DBP

From: The association between tea consumption and blood pressure in the adult population in Southwest China

 

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)

  1. 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