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Table 2 Comparison of the current (DF/DHF/DSS) and the revised classification in 1962 prospective chart reviews (130 charts with missing information excluded)

From: Usefulness and applicability of the revised dengue case classification by disease: multi-centre study in 18 countries

DF/DHF/DSS classification by expert reviewer Revised classification by expert reviewer Total
  Not classifiable Dengue Severe Dengue  
   WS negative WS positive   
Not classifiable 23
(8.6%)
57
(21.3%)
159
(59.3%)
29
(10.8%)
268 (100%)
(13.7% of all)
DF 7
(0.5%)
551
(41.8%)
684
(51.9%)
75
(5.7%)
1317 (100%)
(67.1% of all))
DHF (grades 1 and 2) 2
(0.7%)
8
(2.8%)
240
(83.0%)
39
(13.5%)
289 (100%)
(14.7% of all)
DSS (DHF grades 3 and 4) 0
(0%)
0
(0%)
12
(13.6%)
76
(86.4%)
88 (100%)
(4.5% of all)
Total 32
(1.6%)
616
(31.4%)
1095
(55.8%)
219
(11.2%)
1962 (100%)
  1. * not classifiable = classification was not possible