Calculation of score for prognostic factors and stratified risk groups for patients with peritoneal surface malignancy of appendiceal origin

Factor	Score
Distant metastasis	3
No distant metastasis	0
Completeness of Cytoreduction Score 0/1	0
Completeness of Cytoreduction Score 2	6
Completeness of Cytoreduction Score 3	8
DPAM	0
PMCA	3
Signet ring	4
Adenocarcinoid	5
HIPEC	0
No HIPEC	1
Female	0
Male	1
Risk group	Prognostic score
Good	≤1
Low	2 to 4
Moderate	5 to 10
High	≥10

DPAM: disseminated peritoneal adenomucinosis; PMCA: peritoneal mucinous carcinomatosis; HIPEC: hyperthermic intraperitoneal chemotherapy.

Reproduced by permission from: Springer: Annals of Surgical Oncology. Ihemelandu C, Fernandez S, Sugarbaker PH. A Prognostic Model for Predicting Overall Survival in Patients with Peritoneal Surface Malignancy of an Appendiceal Origin Treated with Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy. Ann Surg Oncol 2017; 24:2266. Copyright © 2017. https://link.springer.com/journal/10434.

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Calculation of score for prognostic factors and stratified risk groups for patients with peritoneal surface malignancy of appendiceal origin