Nomogram of Li et al for Predicting Recurrence-Free Survival for a Patient with a Primary Gastrointestinal Stromal Tumor (GIST)

Description

Li et al reported a nomogram for predicting recurrence-free survival (RFS) for a patient with a primary gastrointestinal stromal tumor (GIST). The authors re from Tianjin Medical University, the Second People's Hospital of Liaocheng, Shandong First Medical University, Baodi People's Hospital of Tianjin Boaodi Clinical College and Tianjin General Surgery Institute in China.

Patient selection: primary gastrointestinal stromal tumor (GIST)

Parameters:

(1) site of tumor

(2) diameter in cm

(3) mitotic index, with mitoses per 50 high power field

(4) rupture

(5) prognostic nutritional index (PNI) of Onodera et al

Parameter	Finding	Points
site of tumor	gastric	0
	non-gastric	33.2
diameter	<= 2 cm	0
	2.1 to 5 cm	44.8
	5.1 to 10 cm	67.7
	> 10 cm	100
mitotic index	<= 5	0
	> 5	45.3
ruptured	no	0
	yes	32.2
PNI	high	0
	low	33.5

total score =

= SUM(points for all of the parameters)

Interpretation:

• minimum score: 0

• maximum score: 244.2

• The higher the score the lower the probability of recurrence-free survival.

value of X =

= (-0.0001022 * ((score)^2)) - (0.011611 * (score)) + 2.8187

probability of 5-year recurrence-free survival =

= 1 / (1 + EXP((-1) * X))

To read more or access our algorithms and calculators, please log in or register.

Nomogram of Li et al for Predicting Recurrence-Free Survival for a Patient with a Primary Gastrointestinal Stromal Tumor (GIST)

Description

Specialty