Table 2. Risk factors related to SCD complications among our sample.
SCD: sickle cell disease; WBC: white blood cells; BMI: body mass index
| Variables | Risk factors | Frequency | P-value | |
| Saudis | Non-Saudis | |||
| (N=55) | (N=47) | |||
| WBC count | ||||
| Leukocytopenia | 5 | 2 | 7 | 0.001 |
| Leukocytosis | 20 | 31 | 51 | |
| Hemoglobin class | ||||
| Anemia | 44 | 52 | 96 | - |
| Non-anemic | 3 | 3 | 6 | |
| Oxygen saturation | ||||
| Hypoxia | 0 | 1 | 1 | - |
| Temperature | ||||
| Hyperthermia | 7 | 6 | 13 | - |
| BMI class | ||||
| Underweight | 18 | 17 | 35 | - |
| Normal | 21 | 29 | 50 | |
| Overweight | 4 | 2 | 6 | |
| Obese | 4 | 5 | 9 | |
| SCD genotype | ||||
| HbSS | 36 | 35 | 71 | - |
| HbSC | 11 | 20 | 31 | |
| Hydroxyurea | ||||
| Yes | 30 | 31 | 61 | - |
| No | 17 | 24 | 41 | |
| Folic acid | ||||
| Yes | 42 | 49 | 91 | - |
| No | 5 | 6 | 11 | |
| Pneumococcal vaccination | ||||
| Yes | 11 | 16 | 27 | - |
| No | 44 | 31 | 75 | |