Table 3.

Multivariate logistic regression on referred CKD 4–5 patients

Referral to a nephrologist		Odds ratio	Standard error	Z	P>|Z|	95% confidence interval
Age group category
	Age 18–59	5.94	0.87	12.16	0	4.46	7.91
	Age 60–79	2.33	0.25	7.88	0	1.89	2.87
	Age 80<	1	(base)
Sex
	Male	1.46	0.13	4.33	0	1.23	1.73
	Female	1	(base)
Diabetes
	No	1	(base)
	Yes	1.84	0.2	5.69	0	1.49	2.27
Hypertension
	No	1	(base)
	Yes	1.75	0.24	4.17	0	1.35	2.28
CVD
	No	1	(base)
	Yes	0.9	0.09	–1.09	0.277	0.74	1.09
Charlson score
	0	1	(base)
	1	0.83	0.11	–1.37	0.17	0.63	1.08
	2	0.94	0.11	–0.55	0.583	0.76	1.17
	3	0.72	0.14	–1.7	0.089	0.49	1.05
	4	0.64	0.14	–2.07	0.038	0.42	0.98
Education level
	Short	1	(base)
	Middle	1.07	0.15	0.46	0.646	0.81	1.41
	Long	3.09	1.21	2.86	0.004	1.43	6.67
Occupational status
	Not active	1	(base)
	Active	0.86	0.13	–0.98	0.325	0.64	1.16
	Temporarily not active	1.57	0.63	1.12	0.262	0.71	3.45
Nephrology outpatient clinic in municipality
	No	1	(base)
	Yes	1.28	0.11	2.91	0.004	1.08	1.52
CKD stage
	4	1	(base)
	5	3.58	0.32	14.35	0	3.01	4.26
_CONS		0.03	0.01	–19.87	0	0.02	0.05