Revisiting Interdialytic Weight Gain and Mortality Association With Serum Albumin Interactions: The Japanese Dialysis Outcomes and Practice Pattern Study

The dialysis practice guideline in Japan sets a limit on the allowed interdialytic weight gain (IDWG) <6%. However, the effects of relative gain of fluid volume to body weight may differ in presence of morbid conditions. Here, we examined whether or not the associations between IDWG and mortality differ by serum albumin (sAlb), a nutritional and illness marker.