Table 3. Effect of timing of nephrology referral on patient survival using multivariable cox proportional hazard model.

Cox proportional hazard model	HR ER/LR	95% CI	P-value
Total follow up ACM	0.760	0.619–0.933	0.009
90-Day ACM	0.422	0.215–0.828	0.012
After 90-Day ACM	1.156	0.879–1.521	0.301

Abbreviations: ER, early referral; LR, late referral; ACM, all-cause mortality Multivariable, adjusted for age, gender, diabetes mellitus, hypertension, serum creatinine, albumin, comorbidites including cardiovascular disease and malignancy, type of vascular access at the first dialysis