Table 4: Mean Differences in Quantitative Angiographic Analysis Before and After Percutaneous Coronary Intervention in the Culprit Lesion, Stratified by Frailty Phenotype.

	Robust (n=42)	Prefrail (n=110)	Frail (n=59)	p-value*
Culprit lesion diameter stenosis	–58.6 [–53.5, –63.7]	−55.7 [−52.7, −58.6]	−50.6 [−45.7, −55.6]	0.042
Culprit lesion vessel diameter	+0.28 [0.13–0.43]	+0.26 [0.14–0.38]	+0.14 [0.23–0.50]	0.58
Culprit lesion area	+67.6 [63.0–72.1]	+64.1 [61.4–66.8]	+60.2 [54.9–65.5]	0.26
Culprit lesion minimum lumen diameter	+2.0 [2.10–1.80]	+1.81 [1.93–1.68]	+1.6 [1.83–1.40]	0.13

Unless indicated otherwise, data show the mean difference with 95% CIs in parentheses. Statistically significant (p≤0.05) results are bolded. All mean differences were statistically significant at the p<0.0001 level. *p-value for the difference in mean difference between frailty phenotypes.