. 2019 Aug 20;13(8):e0007144. doi: 10.1371/journal.pntd.0007144

Table 12. Correlation between the number of clinical warning signs (<2 versus ≥2) in the old and the new dengue classifications and the required level of care.

Parameter	Category	< 2 warning signs (N = 246)		≥2 warning signs (N = 111)		p-value
Parameter	Category	Freq.	%	Freq.	%	p-value
Old classification	DF	237	96	86	78	<0·00001*
Old classification	DHF/DSS	9	4	25	23	<0·00001*
New classification	D-W/D+W	215	90	96	89	0·679
New classification	SDF	23	10	12	11	0·679
Level of care	Level I/Level II	222	90	95	86	0·196
Level of care	Level III	24	10	16	14	0·196

DF: dengue fever; DHF: dengue hemorrhagic fever; DSS: dengue shock syndrome; D-W: dengue without warning signs; D+W: dengue with warning signs; SDF: severe dengue fever; because of missing data, frequencies do not sum up to totals in new classification.