Fig. 1
From: Objective and subjective sleep disorders in automated peritoneal dialysis
Multivariate analyses results. Least squares means and 95 % confidence intervals for sleep parameters with significant differences among groups after adjustment for age, gender, race, and BMI. a Estimates of total sleep time. b Estimates of the percentage of TST in stages 3 and 4 of sleep. c Estimates of the percentage of TST with oxygen saturation less than 90 % (nocturnal hypoxemia). d Estimates of sleep quality (total score of PSQI)