Effects of oral rehydration solution-based prophylactic sodium supplementation on clinical outcomes in pediatric pneumonia: A randomized controlled trial

Table 8 Regression analysis for hospital length of stay

Hospital length of stay in days
Variable	Univariate analysis			Multivariate analysis
	B	CI	P value	CI	P value
Interventional (ORS) vs control1	-5.09	-6.6:-3.4	< 0.001a	-6.37:-3.4	< 0.001a
Respiratory scores on admission	1.3	0.86:1.9	< 0.001a	0.88:1.84	< 0.001a
Modified shock index on admission	4.5	0.73:8.4	0.02a	-3.9:3.2	0.859
Age in months	-0.18	-0.096:0.06	0.652
Sex2	0.71	-1.07:2.5	0.43
Na on admission	0.032	-0.4:0.4	0.88
K on admission	0.947	-0.28:2.1	0.131	-0.09:1.2	0.786
Weight Z scores	-0.73	-1.4:-0.07	0.03	-5.4:1.9	0.356
Height Z scores	-1.06	-2:-0.04	0.04	-1.87:2.1	0.88
BMI Z scores	-0.4	-1:0.08	0.096	-1.43:3.6	0.387

¹The control group is the reference.

²Female sex is the reference.

^aP values less than 0.05 were considered significant.

BMI: Body mass index; K: Potassium; Na: Sodium; ORS: Oral rehydration solution.