Table 1. Clinical and laboratory data for patients with schistosomiasis, by stage of disease, Israel, 1993–2005.
| Acute (n = 42) | Chronic (n = 23) | Asymptomatic (n = 48) | p value | |
|---|---|---|---|---|
| Age ± SD, y | 28.1 ± 8.0 | 25.1 ± 2.6 | 27.2 ± 6.8 | NS* |
| Male:female ratio | 2.63:1 | 4.5:1 | 2.5:1 | NS |
| Exposure, weeks ± SD | 2.3 ± 1.9 | 4 ± 5.8 | 2.1 ± 0.8 | NS |
| Exposure to symptoms, weeks ± SD | 3.1 ± 2.7 | 58.0 ± 31.5 | – | <0.001† |
| Eosinophil count, ×109/L ± SD | 2,374 ± 1,937 | 864 ± 529 | 1,363 ± 1,490 | <0.05† NS‡ |
| Schistosoma haematobium§ | 42.5% | 60.9% | 27.1% | NS |
| S. mansoni§ | 27.5% | 0% | 52.1% | <0.05†‡ |
| Ova detection | 25% | 56.5% | 14.6% | <0.02† NS‡ |
| Serologic diagnosis | 95% | 96% | 89.5% | NS |
*NS, not significant. †Comparison between acute and chronic schistosomiasis. ‡Comparison between acute and asymptomatic schistosomiasis. §In 14.7% of all cases, the test used was not species specific.