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

Table 6. Two-by-two contingency table of the old and the new WHO classifications with the level of care.

Old WHO classification (test)	Level of care (N = 357)		Total
Old WHO classification (test)	Level I and II	Level III	Total
DF [negative]	295 (83%); [TN]	28 (8%); [FN]	323 (91%)
DHF/DSS [positive]	22 (6%); [FP]	12 (3%); [TP]	34 (10%)
Total	317 (89%)	40 (11%)	357 (100%)
TN: true negative; FN: false negative; FP: false positive; TP: true positive. Proportional agreement (95% CI) = 86% (0·82–0·90); Kappa (95% CI) = 0·25 (0·1–0·4); SE = 0·076.
New WHO classification (test)	Level of care (N = 346)		Total
New WHO classification (test)	Level I and II	Level III	Total
D-W/D+W [negative]	297 (86%); [TN]	14 (5%); [FN]	311 (90%)
SDF [positive]	9 (3%); [FP]	26 (8%); [TP]	35 (10%)
Total	306 (88%)	40 (12%)	346 (100%)
TN: true negative; FN: false negative; FP: false positive; TP: true positive. Proportional agreement (95% CI) = 93% (0·93–0·96); Kappa (95% CI) = 0·66 (0·53–0·79); SE = 0·07.

Results are presented as number (%). 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.