Table 2 Secondary study outcome measures Clinical endpoints

Potassium

4.67 (0.61)

4.67 (0.88)

0 (0.56)

4.61 (0.54)

4.80 (0.67)

0.20 (0.50)

Calcium

9.30 (0.68)

9.06 (0.63)

−0.24 (0.72)

9.48 (0.48)

9.52 (0.46)

0.04 (0.52)

Phosphate

4.50 (1.11)

4.700 (1.15)

0.20 (1.43)

4.44 (1.06)

4.32 (1.23)

−0.12 (0.95)

Haemoglobin

11.29 (1.37)

11.25 (1.31)

−0.04 (1.42)

11.56 (1.24)

11.38 (0.92)

−0.19 (0.81)

HbA1c (%)

9.57 (1.37)

8.78 (1.54)

−0.80 (1.24)*

9.62 (1.40)

9.50 (2.05)

−0.13 (1.10)*

Albumin

39.00 (2.75)

38.75 (2.79)

−0.25 (1.80)

37.75 (2.75)

37.83 (2.91)

0.08 (1.67)

Interdialytic Weight Gain

3.71 (1.24)

3.41 (1.43)

−0.30 (1.01)

3.43 (1.77)

3.52 (1.48)

0.09 (1.46)