Table 2.

Prevalence of dengue shock syndrome among hospitalized pediatric dengue patients

Variable	N total	N	Dengue shock syndrome
			Percent	OR	95% CI	AOR	95% CI
Total	75,057	9,392	12.51
Sex
Male	43,519	5128	11.78	1.0		1.0
Female	31,538	4264	13.52	1.17*	1.12–1.22*	1.19*	1.14–1.24*
Age group
< 1	3,318	281	8.47	0.68*	0.60–0.78*	0.62*	0.54–0.71*
1–5	16,315	1,944	11.92	1.0		1.0
6–10	27,499	4,262	15.50	1.36*	1.28–1.44*	1.40*	1.32–1.49*
11–15	27,925	2,905	10.40	0.86*	0.81–0.91*	0.95	0.89–1.03
Hospital
HTD	18,980	1,773	9.34	1.0		1.0
CH1	33,542	5,515	16.44	1.91*	1.80–2.02*	1.79*	1.69–1.90*
CH2	22,535	2,104	9.34	1.0	0.94–1.07	0.96	0.89–1.03
Residence†
HCMC	53,070	5,608	10.57	1.0		1.0
Province	20,340	3,677	18.08	1.87*	1.79–1.95*	1.79*	1.69–1.90*
Season‡
Dry	19,549	2,612	13.36	1.0		1.0
Wet	55,508	6,780	12.21	0.90*	0.86–0.95*	0.96	0.91–1.0

HTD = Hospital for Tropical Disease; CH1 = Children's Hospital Number 1; CH2 = Children's Hospital Number 2; HCMC = Ho Chi Minh City; OR = odds ratio; AOR = adjusted odds ratio (adjusted for sex, age group, hospital, location of admission, year, and season of admission).

^*Values are significant at P < 0.001.

^†Location of residence was missing for 1,651 patients and imputed for multivariate analysis.

^‡Dry season is January to June, and wet season is July to December.