Covariates | Frequency | Percentage | Mean no of pain episodes per year | P-value for the mean difference |
---|---|---|---|---|
Age | ||||
 Young children (0-7) | 971 | 38.35 | 1.53 | 0.00 |
 Children (8-15) | 982 | 38.78 | 1.79 | |
 Young adults (16-24) | 430 | 16.98 | 2.05 | |
 Adults (25-40) | 127 | 5.02 | 1.93 | |
 Older persons (41+) | 22 | 0.87 | 1.82 | |
Sex | ||||
 Male | 1261 | 49.80 | 1.78 | 0.18 |
 Female | 1271 | 50.20 | 1.71 | |
Fever status | ||||
 No | 505 | 19.94 | 1.41 | 0.00 |
 Yes | 2027 | 80.06 | 1.83 | |
Infection status | ||||
 No | 1185 | 46.80 | 1.52 | 0.00 |
 Yes | 1347 | 53.20 | 1.94 | |
Other chronic diseases | ||||
 No | 1796 | 70.93 | 1.67 | 0.00 |
 Yes | 736 | 29.07 | 1.91 | |
Blood transfusion | ||||
 No | 2312 | 91.31 | 1.73 | 0.10 |
 Yes | 220 | 8.69 | 1.89 | |
Hydroxyurea | ||||
 No | 101 | 3.99 | 2.80 | 0.00 |
 Yes | 2431 | 96.01 | 1.70 | |
Malaria Status | ||||
 No | 2515 | 99.33 | 1.74 | 0.00 |
 Yes | 17 | 0.67 | 2.82 | |
Folic Acid | ||||
 No | 731 | 28.87 | 1.30 | 0.00 |
 Yes | 1801 | 71.13 | 1.92 |