Subgroup analysis was performed on patients who had an ASA score
of 1 or 2, versus those with an ASA of 3 or 4.
Univariate analysis identified ASA score
, surgical stage, total number of postoperative complications, and length of stay as independent variables for midterm survival (Table 2).
We collected data on age, ASA score
, specialty of admission, preadmission functional status, functional status on the day of hospital discharge and 28-day post-procedural complications and mortality.
f) Adjusted for ASA score
>3, duration of surgery, and age.
The ASA score
, a preoperative rating assigned to each patient, predicts surgical site infection, length of hospital stay, and risk for death.
To evaluate the risk of surgery, the American Society of Anesthesiologists (ASA) has established the ASA score
, depending on patients' comorbidity and physical status.
The greatest predictors of morbidity and mortality for simultaneous bilateral THA are patient age and ASA score
Statistical analysis was by multivariate regression, with all estimates adjusted for the potential confounding factors of age, body weight, gender, ASA score
, emergency surgery and use of rectal anastomosis or transverse incision.
Only patients with an ASA score
[less than or equal to]3 were included; two patients who had an ASA score
of 4 and received general anesthetics were excluded from the review.
The ASA score
, a subjective assessment of the patient's overall health status, may reflect interobserver variability (17) that can adversely affect stratification of risk for surgical infection (18).
Multivariate regression analysis was conducted to adjust for age, BMI, and ASA score
(1 or 2 versus 3).
The CCI identified more patients with comorbidities as compared to the age-adjusted CCI and to the ASA score