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Table 3 Adjusted PSQI scores with clinically relevant variables in various models

From: Effect of bioelectrical impedance analysis-guided dry weight adjustment, in comparison to standard clinical-guided, on the sleep quality of chronic haemodialysis patients (BEDTIME study): a randomised controlled trial

  Baseline 1 month 3 month 6 month
PSQI scores
 -BIA group 7.9 (2.42) 6.8 (2.78) 5.6 (2.5) 4.44 (0.88)
 -Clinical group 9.22 (3.83) 9.44 (3.13) 8.13 (2.1) 6.62 (3.66)
 -Between-group difference (95% CI) −0.47 (−1.76 to 0.81) −1.82 (−3.13 to − 0.51) −3.16 (−4.49 to − 1.83)
 -P-value 0.47 0.006 <  0.001
PSQI scoresa
 -Between-group difference (95% CI) −0.47 (−1.76 to 0.81) −1.81 (−3.11 to 0.50) −3.10 (−4.42 to − 1.77)
 -P-value 0.47 0.007 <  0.001
PSQI scoresb
 -Between-group difference (95% CI) −0.47 (−1.73 to 0.78) −1.81 (−3.08 to − 0.53) − 3.11 (−4.41 to − 1.81)
 -P-value 0.46 0.005 <  0.001
PSQI scoresc
 -Between-group difference (95% CI) −0.47 (− 1.76 to 0.81) − 1.80 (− 3.10 to − 0.50) − 3.09 (− 4.42 to − 1.77)
 -P-value 0.47 0.007 <  0.001
PSQI scoresd
 -Between-group difference (95% CI) − 0.47 (− 1.70 to 0.76) − 1.87 (− 3.11 to − 0.62) −3.15 (− 4.42 to − 1.88)
 -P-value 0.45 0.003 < 0.001
  1. a Adjustment for the baseline PSQI, dialysis vintage, serum ferritin, and eKt/V
  2. b Adjustment for the baseline PSQI, dialysis vintage, serum ferritin, eKt/V, and BMI
  3. c Adjustment for the baseline PSQI, dialysis vintage, serum ferritin, eKt/V, and baseline excess fluid
  4. d Adjustment for the baseline PSQI, dialysis vintage, serum ferritin, eKt/V, BMI, and baseline excess fluid