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

Table 9 Cross-tabulation of Na levels between the studied groups, n (%)

	Interventional (n = 70)	Control (n = 70)	P value
On day 2
Hyponatremia on day 2	38 (54.3)	34 (48.5)	0.491
Normal natremia on day 2	32 (45.7)	36 (51.4)
On day 4
Hyponatremia on day 4	37 (52.8)	35 (50)	0.731
Normal natremia on day 4	33 (47.2)	35 (50)
On discharge
Hyponatremia on discharge	21 (30)	39 (55.7)	0.021,a
Normal natremia on discharge	49 (70)	31 (44.3)

¹χ² test.

^aP values less than 0.05 were considered significant.

Hyponatremia was defined as a serum sodium concentration < 135 mmol/L, and normal natremia was defined as a serum sodium concentration of 135–145 mmol/L.