Development of clinical decision rules to predict recurrent shock in dengue

Table 1 Clinical characteristics, laboratory parameters and univariate analysis ^a

Characteristics	Single shock	Recurrent shock	Missing data (%)	P-value
Characteristics	(N = 318)	(N = 126)	Missing data (%)	P-value
Age (years)	10 (0.25 to 15)^b	10 (0.5 to 15)	0	0.95
Females/total	171/318	73/126	0	0.43
Admission day	3.97 ± 1.20^c	3.71 ± 1.08	1 (0.2)	0.035
Days of shock	4.95 ± 1.34	4.67 ± 1.38	14 (3.2)	0.054
Petechia	144/318 (45%)	61/126 (48%)	0	0.55
Tourniquet test	12/318 (4%)	5/126 (4%)	2 (0.5)	0.93
Nose/gum bleeding	40/318 (13%)	21/126 (17%)	0	0.26
Purpura/ecchymosis	98/318 (31%)	62/126 (49%)	0	<0.001
GI bleeding	36/318 (11%)	23/126 (18%)	0	0.052
Ascites/pleural effusion	114/318 (36%)	92/126 (73%)	1 (0.2)	<0.001
HCT (%)	43.01 ± 5.83	43.50 ± 5.50	3 (0.7)	0.43
PLTs (×10³/μl)	110.59 ± 56.10	96.63 ± 60.34	16 (3.6)	0.024
WBC count (×10³/μl)	5.55 ± 3.75	4.98 ± 2.73	44 (9.9)	0.141
Pulse pressure (mmHg)	18.41 ± 6.26	16.31 ± 7.24	0	0.001

^aDays of shock, number of illness days prior to the first shock; GI, gastrointestinal; HCT, hematocrit; PLTs, platelets; WBC, white blood cell. Admission day, fever days prior to admission and day 1 of illness were assigned as the day of fever onset. ^bMedian (minimum, maximum) calculated using the Mann–Whitney U test for continuous variables not normally distributed. ^cMean ± SD calculated using Student’s t-test for continuous variables normally distributed.

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