Table 2

Neointimal Characteristics

ZES (n = 79)PES (n = 86)p Value
Neointima obstruction, %16.6 ± 12.09.9 ± 8.9<0.01
 Median (IQR)13.8 (7.0–22.8)7.7 (2.7–13.0)
Maximum CSN, %31.8 ± 16.125.2 ± 14.9<0.01
Stent with maximum CSN >50%, n (%)13 (16.5%)9 (10.5%)NS
Neointima-free frame ratio, %11.8 ± 17.430.9 ± 28.2<0.01

CSN = cross-sectional narrowing; IQR = interquartile ranges; other abbreviations as in Table 1.