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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: Hypertension. 2011 Feb 28;57(4):695–701. doi: 10.1161/HYPERTENSIONAHA.110.165456

Table 2.

Estimated Mean Difference in Blood Pressure (mm Hg), Sugar-Sweetened Beverage or Diet Beverage Intake Higher by 1 Serving/day (355 ml/24-h), Regressed Separately in Sequential Models, INTERMAP USA and UK Participants (N=2,696)

Systolic Blood Pressure Diastolic Blood Pressure

Not adjusted for
Weight, Height
Adjusted for
Weight, Height
Not adjusted for
Weight, Height
Adjusted for
Weight, Height

Beverage Difference Difference Difference Difference
Model  mm Hg (95% CI) Z  mm Hg (95% CI) Z  mm Hg (95% CI) Z  mm Hg (95% CI) Z
Sugar-sweetened beverages
1 1.26 (0.68, 1.84) 4.28 1.05 (0.50, 1.60) 3.74 0.61 (0.21, 1.01) 3.02 0.49 (0.11, 0.87) 2.51
2 1.35 (0.75, 1.95) 4.38 0.94 (0.36, 1.52) 3.20 0.61 (0.20, 1.02) 2.90 0.37 (−0.03, 0.77) 1.81
3 1.60 (0.97, 2.23) 4.98 1.05 (0.44, 1.66) 3.40 0.76 (0.32, 1.20) 3.42 0.43 (0.004, 0.86) 1.98
4a (Veg protein) 1.36 (0.67, 2.05) 3.87 0.99 (0.33, 1.65) 2.95 0.58 (0.11, 1.05) 2.42 0.36 (−0.10, 0.82) 1.54
4b (Calcium) 1.42 (0.78, 2.06) 4.36 0.91 (0.29, 1.53) 2.90 0.66 (0.22, 1.10) 2.95 0.35 (−0.08, 0.78) 1.61
4c (Magnesium) 1.25 (0.57, 1.93) 3.59 0.96 (0.30, 1.62) 2.86 0.60 (0.13, 1.07) 2.52 0.43 (−0.03, 0.89) 1.83
4d (Phosphorus) 1.41 (0.76, 2.06) 4.25 0.90 (0.27, 1.53) 2.82 0.63 (0.18, 1.08) 2.77 0.33 (−0.11, 0.77) 1.47
4e (Caffeine) 1.61 (0.98, 2.24) 4.98 1.08 (0.47, 1.69) 3.49 0.74 (0.31, 1.17) 3.36 0.43 (0.01, 0.85) 2.00
Diet beverages
1 −0.27 (−0.78, 0.24) −1.03 −0.68 (−1.16, −0.20) −2.75 −0.26 (−0.60, 0.08) −1.49 −0.50 (−0.83, −0.17) −2.94
2 −0.32 (−0.82, 0.18) −1.25 −0.58 (−1.07, −0.09) −2.34 −0.28 (−0.63, 0.07) −1.59 −0.43 (−0.76, −0.10) −2.52
3 −0.35 (−0.86, 0.16) −1.34 −0.58 (−1.07, −0.09) −2.32 −0.30 (−0.65, 0.05) −1.70 −0.44 (−0.78, −0.10) −2.52
4a (Veg protein) −0.28 (−0.80, 0.24) −1.06 −0.54 (−1.03, −0.05) −2.17 −0.26 (−0.61, 0.09) −1.46 −0.42 (−0.76, −0.08) −2.40
4b (Calcium) −0.31 (−0.83, 0.21) −1.17 −0.54 (−1.03, −0.05) −2.15 −0.28 (−0.63, 0.07) −1.57 −0.42 (−0.76, −0.08) −2.40
4c (Magnesium) −0.28 (−0.79, 0.23) −1.08 −0.55 (−1.04, −0.06) −2.18 −0.27 (−0.62, 0.08) −1.53 −0.43 (−0.77, −0.09) −2.48
4d (Phosphorus) −0.22 (−0.74, 0.30) −0.83 −0.48 (−0.97, 0.01) −1.91 −0.22 (−0.57, 0.13) −1.23 −0.38 (−0.72, −0.04) −2.16
4e (Caffeine) −0.36 (−0.87, 0.15) −1.38 −0.60 (−1.09, −0.11) −2.41 −0.30 (−0.65, 0.05) −1.68 −0.44 (−0.78, −0.10) −2.55

Model 1: adjusted for age, gender, sample, special diet, supplement use, history of CVD/diabetes, physical activity, family history of high BP, energy intake. Model 2: adjusted for Model 1 variables + urinary Na, urinary K, 14-day alcohol. Model 3: adjusted for Model 2 variables + dietary cholesterol, polyunsaturated fatty acids, saturated fatty acids. Model 4a–4e: adjusted for Model 3 variables + (a) vegetable protein, (b) calcium, (c) magnesium, (d) phosphorus, (e) caffeine.

Z-score = regression coefficient/standard error; Z ≥1.96, uncorrected P ≤0.05; Z ≥2.58, uncorrected P ≤0.01; Z ≥3.29, P≤ =0.001.

No significant USA-UK difference detected, P <0.05.