Table 4.
Proportion of patients without circulatory failure and classified as DF according to WHO criteria, that is reclassified to DHF when the various modified classification systems are applied.*
Criteria used for the classification of DHF patients | Number of DF patients without circulatory failure reclassified to DHF | Proportion (95% CI) |
Bleeding and thrombocytopenia | 5 | 45 (17–77) |
Bleeding and haemoconcentration | 1 | 9 (0–41) |
Haemoconcentration and Thrombocytopenia | 2 | 18 (2–52) |
Bleeding and thrombocytopenia or haemoconcentration | 6 | 55 (23–83) |
Thrombocytopenia and haemoconcentration or bleeding | 7 | 64 (31–89) |
Haemoconcentration and Bleeding or thrombocytopenia | 3 | 27 (6–61) |
* DF, denotes dengue fever; DHF, denotes dengue haemorrhagic fever; WHO, denotes World Health Organization.