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. Author manuscript; available in PMC: 2017 Feb 17.
Published in final edited form as: J Vasc Surg. 2011 Jul 1;54(5):1273–1282. doi: 10.1016/j.jvs.2011.04.054

Table IV.

Regression model results for anesthesia groups vs morbidity and mortality outcomes

Overall
anesthesia		 General vs spinal General vs epidural General vs MAC/local
Outcomes P OR (95% CI) Pa OR (95% CI) Pa OR (95% CI) Pa
Renal morbidityb
  Unadjusted .3398
  Multivariable modelc .2803
Pulmonary morbidityb
  Unadjusted .0047 4.6 (1.5–14.4) .0095 2.1 (0.9–5.3) .0958 2.5 (1.0–6.2) .0417
  Multivariable modeld .0126 4.0 (1.3– 12.5) .0195 1.9 (0.8–4.7) .1711 2.6 (1.0–6.4) .0409
Mortalityb
  Unadjusted .3536
  Multivariable modele .3463
Wound morbidityb
  Unadjusted .0958
  Multivariable modelf .1403
Any morbidityb
  Unadjusted .0279 1.4 (1.0–1.9) .0831 0.9 (0.6–1.2) .4626 1.6 (1.1–2.3) .0181
  Multivariable modelg .0514
% Difference (95% CI) P % Difference (95% CI) P % Difference (95% CI) P
Length of stayh
  Unadjusted <.0001 16.80 (10.8–23.1) <.0001 5.20 (–0.9 to 11.6) .0945 20.10 (13.7–26.9) <.0001
  Multivariable modelg <.0001 10.00 (4.8–15.5) .0001 3.60 (–1.9 to 9.4) .2046 20.00 (14.1–26.2) <.0001

CI, Confidence interval; MAC, monitored anesthesia care; OR, odds ratio.

a

P value for contrast.

b

Logistic regression.

c

Model covariates for renal: age, gender, race, current smoker, total work relative value units, femoral access, American Society of Anesthesiologists class, estimated glomerular filtration rate, functional status, body mass index, diabetes, hypertension, history of congestive heart failure.

d

Model covariates for pulmonary: age, gender, race, current smoker, total work relative value units, femoral access, American Society of Anesthesiologists class, estimated glomerular filtration rate, functional status, history of congestive heart failure, chronic obstructive pulmonary disease, angina, cerebrovascular accident; red blood cell transfusions, dyspnea.

e

Model covariates for mortality: age, gender, race, current smoker, total work relative value units, femoral access, American Society of Anesthesiologists class, estimated glomerular filtration rate functional status, body mass index; history of congestive heart failure, chronic obstructive pulmonary disease, angina, cerebrovascular accident; red blood cell transfusions, prior percutaneous transluminal coronary intervention, prior coronary artery bypass grafting.

f

Model covariates for wound: age, gender, race, current smoker, total work relative value units, femoral access, body mass index, diabetes, history of chronic obstructive pulmonary disease, operative time, long-term steroid use.

g

Model covariates for any morbidity and length of stay: age, gender, race, current smoker, total work relative value units, femoral access, American Society of Anesthesiologists class, estimated glomerular filtration rate, functional status, body mass index, diabetes; history of congestive heart failure, chronic obstructive pulmonary disease, angina, cerebrovascular accident; red blood cell transfusions, operative time.

h

Linear regression (log-transformed for analysis, back-transformed results are presented).