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Table 3 Differences in objective, subjective sleep parameters, and depression between each dialysis group and the CKD group, after adjustment for age, gender, race, and BMI; 95 % confidence intervals are also shown

From: Objective and subjective sleep disorders in automated peritoneal dialysis

  APD-CKD 3b–5 HD-CKD 3b–5 p value
Total sleep time (minutes) −26.8 (−80.9 to 27.2) −61.6 (−96.3 to −27.0) 0.003
Sleep efficiency (%) −4.05 (−11.67 to 3.57) −4.36 (−9.26 to 0.54) 0.18
Stage 1 (% of TST) 0.66 (−2.99 to 4.31) 1.17 (−1.23 to 3.58) 0.63
Stage 2 (% of TST) −4.82 (−11.60 to 1.96) −5.02 (−9.36 to −0.68) 0.057
Stages 3 and 4 (% of TST) 2.34 (−0.69 to 5.38) 2.81 (0.80 to 4.81) 0.018
Rapid eye movement sleep (% of TST) 0.41 (−4.83 to 5.65) −1.36 (−4.63 to 1.92) 0.66
Apnea hypopnea index 0.92 (−4.92 to 6.77) 4.84 (0.47 to 9.21) 0.091
Obstructive apnea index 1.25 (−3.51 to 6.02) 2.88 (−0.40 to 6.15) 0.22
Nocturnal hypoxemia (≥3 % of TST) 1.54 (−0.24 to 3.32) 1.82 (0.63 to 3.00) 0.009
Micro-arousal index 1.19 (−2.90 to 5.29) 0.29 (−1.96 to 2.54) 0.84
Periodic limb movement index 2.04 (0.25 to 3.82) 0.46 (−0.50 to 1.41) 0.078
Pittsburgh Sleep Quality Index score 2.54 (0.37 to 4.71) 2.22 (0.74 to 3.71) 0.005
PHQ-9 score 1.51 (−0.48 to 3.50) −0.13 (−1.30 to 1.03) 0.26
  1. Results are presented as differences in least squares means between the identified groups. Numbers in parentheses reflect the endpoints of the 95 % confidence interval for the indicated group difference