Table 3.

Potential factors that increased the risk of major bleeding.

Potential modifying factor	OR	95% CI	P
6MWT <300 m	2.80	0.94–8.32	0.057
HAS-BLED score ≥3	11.17	3.06–40.77	<0.001
Prior bleeding/predisposition to bleed	27.36	5.93–126.25	<0.001
Poor anticoagulation	2.72	1.00–7.40	0.045
Diabetes	2.66	0.93–7.65	0.063
Target INR >2.5	3.87	0.97–15.35	0.064

6MWT, six-minute walking test; CI, confidence interval; INR, international normalized ratio; OR, odds ratio.