| n | % |
HBP | 47 | 29.2 |
Diabetes mellitus | 26 | 16.2 |
Long-term use of NSAIDs | 24 | 15 |
HIV | 12 | 7.5 |
Heart disease | 5 | 3.1 |
Stroke | 5 | 3.1 |
Tuberculosis | 4 | 2.5 |
Cirrhosis of the liver | 3 | 1.86 |
Benign tumours | 3 | 1.86 |
Homozygous sickle cell disease | 1 | 0.62 |
Other | 11 | 6.8 |