After two weeks' interval, wash out, groups would change the method used to assess their dry weight. ( A - BIA and B -CA) After the second phase, all patients had a further evaluation with BIA to assess for hydration state, weight gain between sessions, frequency of complications and time to reach dry weight, all data registered in a specific instrument. Dry weight was achieved by adjustments made in all HD sessions, based on clinical evaluation or BIA. The maximum decrement to achieved dry weight was 500 grams of weight per dialysis session. Nurses did clinical evaluation in both groups.