Nomograms of Wang et al for a Patient with Buccal Cancer: Nomogram for Cancer Specific Survival

Description

Wang et al reported nomograms for predicting outcomes for patients with cancer of the buccal mucosa. These can help to identify a patient who may require more aggressive management. The authors are from Tianjin Medical University, Guangzhou Medical University, and Sun Yat-sen University in China.

Patient selection: cancer of the buccal mucosa

Parameters:

(1) age at diagnosis

(2) histological grade

(3) histological type

(4) SEER stage

(5) tumor diameter in mm

(6) surgery

Parameter	Finding	Points
age at diagnosis	<= 70 years	0
	> 70 years	3.9
histologic grade	low	0
	high	2.3
histological type	squamous cell carcinoma	7.5
	other	0
SEER	localized	0
	regional	6.5
	distant	10
diameter	<= 40 mm	0
	> 40 mm	3.4
surgery	no	5
	yes	0

total score =

= SUM(points for all of the parameters)

Interpretation:

• minimum score: 0

• maximum score: 32.1

value of X =

= (-0.00526 * ((score)^2)) - (0.08364 * (score)) + 2.627

probability of 5-year cancer specific survival =

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

Performance:

• The area under the ROC curve is 0.80.

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Nomograms of Wang et al for a Patient with Buccal Cancer: Nomogram for Cancer Specific Survival

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