Surgical mortality in patients with malignant obstructive jaundice: a multivariate discriminant analysis.
OBJECTIVE
To estimate the operative mortality in patients with malignant obstructive jaundice.


METHODS
Twelve risk factors were analyzed using multivariate discriminant analysis in 90 patients who had been operated on.


RESULTS
Operative mortality was significantly related to the following factors: age, duration of jaundice, packed RBC volume, white blood cell count and concentration of blood urine nitrogen; it was not significantly related to diseases and types of operation. The following formula was obtained: packed RBC volume x 0.09954-age x 0.04018- blood urine nitrogen x 0.23693-duration of jaundice x 2.07388-WBC count x 0.21118+ 5.26593. With this formula, an operative mortality of 77.8% was predicted.


CONCLUSIONS
With a positive value from the formula, the patient should be operated on; otherwise non-operative treatment is advocated.
Han
Xi-Chun
XC
Department of Surgery, Second Hospital, Jilin University, Changchun 130041, China. hanchun601@sohu.com
Li
Jin-Long
JL
Han
Gang
G
D000368:Aged; D001661:Biliary Tract Neoplasms / Q000401:mortality* / Q000601:surgery*; D016002:Discriminant Analysis; D005260:Female; D006801:Humans; D041781:Jaundice, Obstructive / Q000401:mortality* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011183:Postoperative Complications / Q000401:mortality