Table 3.

Comparison of complications and hospitalization of children.

Group		Admission to PICU [n (%)]	Worsening condition [n (%)]	Average hospital costs ($\overline{X}\pm s$m Yuan)	Mean hospital stay (±S, days)
Control group	56	9 (16.07)	13 (23.21)	10484.20 ± 1342.02	10.11 ± 2.36
Observation group	58	2 (3.45)	5 (8.62)	9052.02 ± 3574.78	7.90 ± 2.06
t/χ 2		5.207	4.564	−2.850	−5.318
P		0.022	0.033	0.006	0.000