Variable	Cost per month			Fischer’s exact test	p-value
Variable	Low	Medium	High	Fischer’s exact test	p-value
Cormobidity
Yes	40(35.7%)	16(14.3%)	56(50%)	34.94	<0.001^**
No	8(22.9%)	23(65.7%)	4(11.4%)	34.94	<0.001^**
Diabetes
Yes	3(15.8%)	2(10.5%)	14(73.7%)	8.879	0.012^**
No	45(32.5%)	37(28.9%)	46(35.9%	8.879	0.012^**
Heart disease
Yes	22(64.7%)	3(8.8%)	9(26.5%)	20.082	<0.001^**
No	26(23.0%)	36(31.9%)	51(45.1%)	20.082	<0.001^**
Renal disease
Yes	6(31.6%)	1(5.3%)	12(63.2%)	6.673	0.030^**
No	42(32.8%)	38(29.7%)	48(37.5%)	6.673	0.030^**
Dyslipideamia
Yes	8(23.5%)	9(26.5%)	17(50.0%)	2.018	0.359
No	40(35.4%)	30(26.5%)	43(38.1%)	2.018	0.359