Table 5.

Functional outcomes at the last follow-up.^a.

WIQ		DCB	nSFA	Z/t	P
Total score	at admission	0.34 ​± ​0.26	0.36 ​± ​0.16	−0.612	0.542
	at the last follow up	0.51 ​± ​0.28	0.52 ​± ​0.21	−0.237	0.813
	T	−3.233	−4.243
	P	0.002	＜0.001
Distance	at admission	0.30(0.04,0.68)	0.45(0.20,0.57)	−1.229	0.219
	at the last follow up	0.86(0.19,1.00)	0.89(0.48,1.00)	−0.955	0.340
	Z	−3.551	−4.512
	P	＜0.001	＜0.001
Speed	at admission	0.25(0.10,0.33)	0.26(0.23,0.28)	−0.290	0.772
	at the last follow up	0.31(0.24,0.43)	0.28(0.25,0.34)	−0.376	0.707
	Z	−2.277	−2.682
	P	0.023	0.007
Stair-climbing	at admission	0.25(0.04,0.67)	0.42(0.17,0.53)	−0.096	0.923
	at the last follow up	0.61(0.17,0.88)	0.50(0.23,0.88)	−0.272	0.786
	Z	−2.262	−2.895
	P	0.024	0.004

Abbreviations: DCB ​= ​drug-coated balloon; nSFA ​= ​superficial femoral artery nonrevas cularization; WIQ ​= ​walking impairment questionnaire.

^aNormally distributed data were described as mean ​± ​standard deviation, whereas skewed data as medians (quartiles).