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

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

	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 scores^a
-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 scores^b
-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 scores^c
-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 scores^d
-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

^a Adjustment for the baseline PSQI, dialysis vintage, serum ferritin, and eKt/V
^b Adjustment for the baseline PSQI, dialysis vintage, serum ferritin, eKt/V, and BMI
^c Adjustment for the baseline PSQI, dialysis vintage, serum ferritin, eKt/V, and baseline excess fluid
^d Adjustment for the baseline PSQI, dialysis vintage, serum ferritin, eKt/V, BMI, and baseline excess fluid