Table 5. Postoperative evolution according to the Fried's scale.

	Non-frail n=13	Pre-frail n=70	Frail n=17	p
Hospital death	0%	8.6%	29.4%	0.026
Intensive care time (days)	3 (2–3)	3 (2–5)	3 (2–4)	0.946
Hospital time (days)	10 (7–11)	11 (7–16)	9 (6–22)	0.861
IMV time (hour)	15 (5–19)	17 (7–28)	13 (7–12)	0.615
Creatinine	1.2 (0.9–1.2)	1.3 (1.0–1.7)	1.1 (1.0–1.4)	0.231
Hemoglobin	10 (9–11)	10 (9–11)	10 (10–11)	0.994
Non-invasive ventilation	38%	40%	23%	0.448
Cardiogenic pulmonary congestion	46%	41%	47%	0.888
Pneumonia	8%	8%	23%	0.193
Urinary infection	0.0%	13%	23%	0.164
Superficial wound infection	8%	6%	12%	0.667
Mediastinitis	0%	3%	6%	0.640
Acute kidney failure	0.0%	8%	0%	0.255
Stroke	0.0%	3%	12%	0.178

IQR: interquartile range. Fisher's exact test (categorical variables). IMV: Invasive mechanical ventilation.