Concordance between bio-impedance analysis and clinical score in fluid-status assessment of maintenance haemodialysis patients: A single centre experience

Table 4 Univariable analysis of factors associated with fluid overload

Variable	Values	FO+ (n = 71)	FO- (n = 9)	OR	95%CI	P value
Duration of dialysis1 (mo)	3-76	71	9	1.05	0.967-1.147	0.13
No of missed dialysis sessions	0	59	7
	≥ 1	12	2	0.712	0.131-3.856	0.70
Advised on fluid restriction	No	6	2
	Yes	65	7	3.095	0.522-18.357	0.25
Actual fluid intake1 (mL)	200-2800	71	9	0.998	0.997-1.000	0.082
Advised on salt intake	No	9	1
	Yes	62	8	0.8611	0.096-7.719	0.89
Number of anti-hypertensives used	0	11	0
	1	13	2
	2	23	3
	3	14	4
	4	7	0
	5	2	0
	6	1	0	0.903	0.537-1.517	0.70
Patient’s BMI1 (kg/m2)	15.82-32.53	71	9	1.196	0.942-1.520	0.11

¹Variables eligible for inclusion in the multivariable model at a liberal P value of 0.20.

BMI: Body mass index; CI: Confidence interval; FO+: Positive fluid overload; FO-: Negative fluid overload; OR: Odds ratio.