Comparison of biochemical and clinical parameters between groups were evaluated on the 3rd and 15th month of hemodialysis by analysis of variance with two factors of variation: group and time.

Table 2: Comparison of biochemical and clinical parameters between groups were evaluated on the 3^rd and 15^th month of hemodialysis by analysis of variance with two factors of variation: group and time.

Variables N (%)	G1-M3 31 (55.4)	G1-M15 25 (44.6)	G2-M3 25 (61.0)	G2-M15 16 (39.0)	p
Phosphorus (mg/dL)
Mean	5.2	4.5	5.1	5.1
Period					0.4
Group^*Period					0.329
Total Calcium (mg/dL)
Mean	9.6	9.1	10.3	10.2
Period					0.075
Group^*Period					0.313
PTHi (pg/mL)
Mean	527.1	358.7	570.8	506.3
Period					0.151
Group^*Period					0.517
Ca × P Product (g²/dL²)
Mean	50.6	41.1	51.4	53.4
Period					0.333
Group^*Period					0.140
Albumin (g/dL)
Mean	3.7	3.7	3.6	3.7
Period					0.384
Group^*Period					0.483
CRP (× UNL)
Mean	5.0	2.3	7.4	5.8
Period					0.009^*
Group^*Period					0.504
LDL-c (mg/dL)
Mean	116.4	82.6	82.6	90.3
Period					0.297
Group^*Period					0.101
Triglycerides (mg/dL)
Mean	185.1	178.7	155.3	153.0
Period					0.728
Group^*Period					0.870
IDWG (%)
Mean	2.7	2.9	2.8	3.1
Period					0.186
Group^*Period					0.772
Kt/V_urea
Mean	1.3	1.4	1.3	1.2
Period					0.507
Group^*Period					0.191
nPNA (g/kg/day)
Mean	1.3	1.1	1.4	1.3
Period					0.097
Group^*Period					0.803

Symbols and abbreviations: ^*: Statistically significant p value; G1: Group with full nutritional assistance; G2: Group with partial nutritional assistance; N: Number of patients; M3: 3^rd month-beginning of monitoring; M15: 15^th month-end of monitoring; iPTH: Intact parathyroid hormone; Ca × P: Calcium × phosphorus product; CRP: C-reactive protein × UNL-upper normal limit); LDL-c: Low density lipoprotein cholesterol; %IDWG: Percentage of interdialytic weight gain; Kt/Vurea: Volume of plasma cleared of urea; nPNA: Equivalent of total normalized protein nitrogen appearance.