Preoperative moderate to severe anemia is associated with increased postoperative major adverse cardiac and cerebral events and pulmonary complications: a propensity score-matched analysis in hip fracture surgery patients over 80 years old

Table 4 Postoperative complications in matched cohorts

	Hemoglobin (g dl⁻¹)		Odd ratio	95%CI	P value
	< 11 (n = 256)	≥ 11 (n = 256)	Odd ratio	95%CI	P value
MACCE	25 (9.4)	12 (4.5)	2.196	1.079–4.470	0.027
PPCs	32 (12.1)	11 (4.2)	3.171	1.563–6.436	0.001
In-hospital mortality	10 (3.8)	2 (0.8)	5.157	1.119–23.766	0.019
Delirium	3 (1.1)	3 (1.1)	0.991	0.249–3.940	> 0.999
GI complication	5 (1.9)	4 (1.5)	1.255	0.333–4.725	> 0.999
ICU	7 (2.6)	1 (0.4)	7.163	0.875–58.672	0.068
DVT	5 (1.9)	2 (0.8)	2.529	0.486–13.151	0.450
Transfusion (> 2U)	123 (46.4)	124 (46.8)	1.015	0.722–1.428	0.931

Abbreviations: MACCE Major adverse cardiac and cerebral events, PPCs Postoperative pulmonary complications, GI Gastrointestinal, DVT Deep venous thrombus

ISSN: 2047-0525