| Variables | Effective | Percent |
| Sex | ||
| Male | 165 | 47.1 |
| Female | 135 | 52.9 |
| Age range | ||
| 6 - 11 | 91 | 26 |
| 12 - 59 | 170 | 48.6 |
| 60 | 89 | 25.4 |
| Electrophoretic profile | ||
| SS | 327 | 93.4 |
| SC | 23 | 6.6 |
| EPI* status | ||
| Up to date | 231 | 66 |
| Not up to date | 119 | 34 |
| Clinical signs | ||
| Fever | 194 | 55.1 |
| Mucocutaneous pallor | 193 | 52.1 |
| Osteoarticular pain | 129 | 36.8 |
| Diarrhea/Vomiting | 53 | 15.1 |
| Abdominal pain | 50 | 14.2 |
| Cough | 45 | 12.9 |
| Hand-foot syndrome | 29 | 8.4 |
| Respiratory distress | 14 | 4 |
| Other | 14 | 4 |