TABLE 2.

Incidence of Major In-hospital Complications, Mortality, and Resource Utilization by Group of Anesthesia

Complications
	Neuraxial		Neuraxial/General		General		P
	n	%	n	%	n	%
Deep venous thrombosis	9	0.4	17	0.4	143	0.6	0.1327
Pulmonary embolism	15	0.5	20	0.4	144	0.6	0.1018
Cerebrovascular event	4	0.1	4	0.1	23	0.1	0.9383
Pulmonary complications	49	1.8	79	1.9	475	2.2	0.2622
Cardiac (non–myocardial infarction)	277	9.0	401	9.3	2103	9.2	0.9
Pneumonia	44	1.3	54	1.1	343	1.6	0.0605
All infections	125	3.8	192	4.2	1022	4.6	0.1166
Acute renal failure	82	2.8	125	2.7	701	3.2	0.1172
Gastrointestinal complication	29	0.9	43	0.9	298	1.3	0.0657
Acute myocardial infarction	11	0.4	10	0.2	54	0.2	0.258
Mortality (30-d)	3	0.1	9	0.2	48	0.2	0.2879
Blood transfusion	438	12.7	592	12.4	3230	13.8	0.0273*
Mechanical ventilation	119	2.8	139	2.8	945	4.4	<0.0001*
Critical care services admission	97	3.1	190	4.8	1647	6.9	<0.0001*

(MI = myocardial infarction).

The P value indicates testing of the null hypothesis (= no difference across all three groups: neuraxial [N], neuraxial/general [NG], and general [G]): χ² test (for categorical outcomes).

^*Significant P values from post hoc comparisons: for outcome of blood transfusion: P = 0.0173(G vs NG); for outcome of mechanical ventilation: P < 0.0001 (G vs NG) and P < 0.001 (G vs N); for critical care service admission: P < 0.0001(G vs NG), P = 0.0015 (N vs NG), and P < 0.001 (G vs N).