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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: Am J Kidney Dis. 2014 Apr 26;64(2):222–229. doi: 10.1053/j.ajkd.2014.02.022

Table 2.

Anthropometric, physiological and nutritional variables of study participants at baseline and after 16-week intervention.

Variable Treatment Control Adj Mean Diff (95% CI)* p value**
Baseline 16 wk Baseline 16 wk
BMI(kg/m2) 34.9 (8.0) 34.5 (7.8) 36.5 (8.9) 36.2 (8.9) −0.24 (−090, 0.41) 0.5
Body Fat (%) 35.9 (9.5) 34.7 (9.7) 37.4 (8.6) 37.7 (8.7) −1.43 (−2.95, 0.09) 0.1
SBP (mm Hg) 126.4 (17.8) 124.5 (15.9) 133.7 (19.2) 128.4 (25.3) 2.02 (−7.54, 11.58) 0.9
DBP mm Hg) 79.5 (10.2) 77.8 (10.6) 79.1 (10.7) 75.3 (14.7) 2.62 (−2.62, 7.85) 0.1
Pulse pressure (mm Hg) 38.5 (10.9) 38.9 (9.1) 43.7 (14.5) 44.7 (13.9) −2.42 (−6.91, 2.06) 0.3
Aortic PWV(m/s) 10.7 (2.9) 10.8 (2.9) 11.1 (2.2) 10.98 (2.4) 0.14 (−0.74, 1.02) 0.8
VO2peak (ml/kg/min) 19.6 (6.7) 21.2 (7.7) 18.0 (6.0) 17.5 (5.7) 2.29 (0.12, 4.47) 0.04§
Peak RER 0.96 (0.2) 0.99 (0.09) 0.99 (0.14) 0.96 (0.13) 0.04 (−0.03, 0.11) 0.2
Peak SBP (mm Hg) 179.4 (29.4) 173.1 (26.1) 178.7 (27.7) 167.4 (30.8) 5.00 (−11.14, 21.13) 0.5
Peak heart rate (bpm) 134.4 (25.8) 136.8 (24.7) 126.7 (18.9) 122.2 (18.6) 8.23 (0.32, 16.14) 0.04§
AIx at 75 bpm 22.6 (11.2) 20.9 (11.1) 17.1 (11.0) 16.4 (7.7) 0.34 (−2.89, 3.57) 0.8
hsCRP (mg/L) 6.0 (3.7) 5.9 (4.5) 5.6 (2.96) 5.4 (3.3) 0.14 (−1.50, 1.78) 0.9
ET-1* (fmol/ml) 1.6 (1.0) 1.3 (0.7) 1.7 (1.3) 2.2 (2.2) −0.83 (−1.56, − 0.10) 0.03§
NO (μmol/L) 19.4 (15.3) 18.1 (14.8) 17.4 (13.5) 15.7 (9.5) 1.69 (−5.39, 8.77) 0.6
NO:ET-1 ratio 12.3 (7.11) 15.93 (13.1) 14.1 (15.0) 8.8 (6.8) 7.80 (1.12, 14.17) 0.02§
Calories (kcal) 2149.3 (722.1) 2200.5 (849.6) 2077.2 (568.5) 1985.1 (411.7) 183.05 (−162.46, 528.87) 0.3
Sodium (mg) 3643.7 (1273.2) 3714.4 (1432.7) 3612.9 (1550.4) 3512.6 (1289.8) 186.38 (−217.73, 590.49) 0.4

Note: Unless otherwise indicated, values are given as mean ± standard deviation.

Adj, adjusted; AIx, central augmentation index; BMI, body mass index; diff, difference; CI. confidence interval; DBP, diastolic blood pressure; DM, diabetes mellitus; eGFR, estimated glomerular filtration rate; HTN, hypertension; RER, respiratory exchange ratio; SBP, systolic blood pressure; VO2peak, peak oxygen uptake; NO, nitric oxide; ET-1, endothelin 1;

hsCRP, high-sensitivity C-reactive protein;

*

95% CI for difference between adjusted means of treatment and control groups at 16 weeks, controlling for age and baseline assessment.

**

p value for difference between treatment and control groups at 16 weeks analyzed by either a 1 way or 2×2 analysis of covariance (see text for details for each variable).

§

indicates significant difference between treatment and control groups at week 16 controlling for age and baseline values.