Table 2– Unadjusted 1-year risk of all-cause mortality by baseline 6-min walk distance (6MWD) and 24-week change in 6MWD

	Patient visits n	Deaths n (%)	Hazard ratio (95% CI)	p-value
Baseline 6MWD m
<250	125	15 (12.0)	2.33 (1.30–4.18)	0.005
250–349	244	19 (7.8)	1.42 (0.83–2.43)	0.201
≥350	787	45 (5.7)	1.00
24-week change in 6MWD m
< -50	308	38 (12.3)	3.76 (2.26–6.27)	<0.001
-50– -26	165	17 (10.3)	3.15 (1.69–5.86)	<0.001
≥ -25	683	24 (3.5)	1.00