Table 3.

Adjusted mortality HRs, with  altitude by  cause of ESKD interaction, in Peruvian patients receiving HD

Variable	HR (95% CI)	P-value
Age (1-year increase)	1.04 (1.03–1.05)	<0.001
Sex (women versus men)	1.26 (0.96–1.63)	0.091
Interaction of altitude and sex	0.83 (0.44–1.58)	0.571
Interaction of altitude and cause of ESKD		0.014
High versus low altitude for diabetes	2.50 (1.36–4.59)	0.003
High versus low altitude for hypertension	1.15 (0.71–1.89)	0.567