Table 4 : Relation between initiating haemodialysis with AVF as outcome and different patient characteristics.

Predictor	Starting HD with AVF		Odds ratio	p-value
	No	Yes	(95% CIs)
Age at  referral time to nephrology care
<14.9	6	2	1	-
15-29.9	48	6	0.4(0.06_2.3)	0.3
30-44.9	77	6	0.2(0.04_1.4)	0.1
45-59.9	84	10	0.4(0.06_2)	0.2
≥60	48	3	0.2(0.03_1.4)	0.1
Sex
Female	135	12	1	-
Male	192	20	1.2(0.56_2.5)	0.6
Referral source
Emergency department	181	7	1	-
Other healthcare centres	64	5	2(0.6_6.6)	0.2
Outpatient clinic	82	20	6.3(2.7_15.5)	<0.0001
Period of pre-ESRD care/month
>12month	35	14	1	-
6-12month	17	3	0.4(0.1_1.7)	0.2
<6month	73	10	0.3(0.14_0.85)	0.02
0month	138	0	-	-
Reason of referral to nephrologist
Diseases of genitourinary system	6	5	1	-
Disease of circulatory system	102	13	0.2(0.04_0.6)	0.005
Endocrine, nutritional and metabolic diseases & immunity disorders	152	9	0.07(0.02_0.3)	<0.0001
Symptoms and signs indicate to renal diseases	15	2	0.2(0.02_1.1)	0.06
Diabetic nephropathy
No	243	27	1	-
Yes	84	5	0.54(0.2_1.4)	0.2
Hypertensive nephropathy
No	150	11	1	-
Yes	177	21	1.62(0.77_3.5)	0.2

HD= haemodialysis, AVF= arterio-venous fistula.