Table 3.
Laboratory findings at time of illness presentation
| Laboratory finding at illness presentation* | Non-dengue acute febrile illnesses (N = 43) | Symptomatic dengue (N = 31) | Univariate P values | Multivariate odds ratio (95% CI) for symptomatic dengue | Hospitalized DHF (N = 9) | Hospitalized DF (N = 13) | Mild outpatient dengue illness (N = 9) | Univariate P values |
|---|---|---|---|---|---|---|---|---|
| Hematocrit (%) | 33.6 (32.5, 34.6) | 34.5 (33.2, 35.8) | P = 0.3 | 36.3 (32.9, 39.8) | 33.6 (31.5, 35.6) | 33.9 (32.4, 35.4) | P = 0.2 | |
| Platelet count (×103/mm3) | 283 (246, 319) | 178 (141, 215) | P < 0.001 | 2.2 (1.2, 4.1 for every 100 × 103/mm3 decrease) | 123 (74, 173) | 202 (125, 278) | 201 (153, 250) | P = 0.11 |
| Leukocyte count (×103/mm3) | 11.7 (9.5, 13.9) | 7.7 (6.7, 8.8) | P = 0.004 | 1.3 (0.7, 2.7 for every 5 × 103/mm3 decrease) | 6.2 (4.9, 7.5) | 8.3 (6.1, 10.4) | 8.6 (6.6, 10.6) | P = 0.16 |
| Lymphocyte or monocyte percentage (%) | 49.0 (43.5, 54.5) | 58.4 (46.3, 70.5) | P = 0.09 | 63.3 (45.8, 80.7) | 54.8 (35.9, 73.8) | ND† | P = 0.4 |
*
Values are presented as mean (95% CI).
†
ND = not done.