Variables | Cohort group | Total | P value | |
Erythrocytosis | No erythrocytosis | |||
Total number of patients | 31 | 188 | 219 | |
Age (years) median (IQR): 38 (23), range=13–90 | ||||
35 and below | 16 | 73 | 89 | 0.366 |
36–55 | 11 | 77 | 88 | |
56 and above | 4 | 38 | 42 | |
Sex | ||||
Male | 29 | 91 | 120 | <0.001 |
Female | 2 | 97 | 99 | |
Baseline body weight (kgs) | ||||
<33 | 1 | 23 | 24 | <0.001* |
33–50 | 13 | 136 | 149 | |
51–70 | 15 | 25 | 40 | |
>70 | 2 | 3 | 5 | |
Educational status | ||||
No formal education | 2 | 53 | 55 | 0.027* |
Primary | 4 | 28 | 32 | |
Middle | 14 | 54 | 68 | |
Secondary | 8 | 45 | 53 | |
Higher education | 3 | 7 | 10 | |
Residence | ||||
Asmara | 13 | 56 | 69 | 0.271 |
Other than Asmara | 18 | 130 | 148 | |
Altitude (metres) | ||||
Below 750 | 2 | 32 | 34 | 0.249* |
750–1500 | 5 | 32 | 37 | |
Above 1500 | 21 | 99 | 120 | |
Comorbidity | ||||
Yes | 6 | 30 | 36 | 0.842 |
No | 25 | 157 | 182 | |
Liver injury | ||||
Yes | 11 | 53 | 64 | 0.536 |
No | 19 | 129 | 148 | |
Renal injury | ||||
Yes | 5 | 15 | 20 | 0.163* |
No | 24 | 168 | 192 | |
Hypothyroidism | ||||
Yes | 17 | 113 | 130 | 0.906 |
No | 12 | 70 | 82 | |
Treatment duration (months) | ||||
Less than or equal to 6 | 20 | 15 | 35 | <0.001* |
7–12 | 4 | 22 | 26 | |
Greater than 12 | 7 | 151 | 158 |
*Fisher χ2 test