Table 1. Clinical characteristics of DHF patients with primary and secondary dengue.
| Clinical characteristic | Primary dengueN (%) | Secondary dengueN (%) | TotalN (%) |
| Abdominal pain | 6 (33.3) | 44 (47.8) | 50 (45.5) |
| Bleeding manifestations | 9 (50) | 40 (43.5) | 49 (44.5)) |
| Petechiae | 3 (16.7) | 10 (25) | 13 (11.8) |
| Gum bleeding | 3 (16.7) | 17 (18.5) | 20 (18.2) |
| Prolonged bleeding from sites of venepuncture | 2 (11.1) | 16 (17.4) | 18 (16.4) |
| Haematemesis | 0 (0) | 8 (8.6) | 8 (7.3) |
| Melena | 3 (16.7) | 18 (19.6) | 21 (19.1) |
| Vaginal bleeding | 0 (0) | 6 (6.5) | 6 (5.4) |
| Pleural effusions | 2 (11.1) | 15 (16.3) | 17 (15.4) |
| Ascites | 1 (5.5) | 15 (16.3) | 16 (14.5) |
| Narrow pulse pressure (<20 mmHg) | 3 (16.7) | 26 (28.3) | 29 (26.4) |
| Platelet count <20,000 cells/mm3 | 5 (27.8) | 42 (45.6) | 47 (42.7) |