Table 2.

Hazard ratios (95% CI) for the risk of hospitalization with acute kidney injury

	Unadjusted HR (95% CI)	Fully-adjusted* HR (95% CI)
High-intensity	1.35 (1.28, 1.43)	1.16 (1.10, 1.23)
Medium-intensity	1.09 (1.03, 1.16)	1.07 (1.01, 1.13)
Low-intensity	1.04 (0.93, 1.15)	1.03 (0.93, 1.15)
Non-use	1 (referent)	1 (referent)
P for trend	< 0.001	< 0.001

CI confidence interval, HR hazard ratio

*Adjusted for covariates in Table 1