Is subjective global assessment a reliable measure of nutritional status in hemodialysis?

Box and whisker plot comparing composite nutritional score and SGA based on a 3-point scale (A to C) as described by Detsky.1 Values were significantly different (P < .0001; Mann-Whitney U test), but the overlap in scores was considerable. Bold line, median value; box, 25th and 75th percentiles; thin lines, 95% confidence intervals; circles, outliers.

Box and whisker plot comparing composite nutritional score and SGA based on the 7-point scale recommended in the Disease Outcomes and Quality Initiative (DOQI) guidelines. Values were significantly different (P = .001; Kruskal Wallis test), but the overlap in scores was considerable, particularly for midrange SGA scores. Bold line, median value; box, 25th and 75th percentiles; thin lines, 95% confidence intervals; circles, outliers.

The relationship between serum albumin and CRP (plotted on a log scale).