From: Frailty index is useful for predicting postoperative morbidity in older patients undergoing gastrointestinal surgery: a prospective cohort study
No. of patients (n = 246)
Non-frail (n = 199)
Frail (n = 47)
p
I
19 (7.7)
9 (4.5)
10 (21.3)
0.629
II
31 (12.6)
17 (8.5)
14 (29.8)
 ≥ III
9 (3.7)
6 (3.0)
3 (6.4)