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. 2013 May 31;14:170. doi: 10.1186/1471-2105-14-170

Table 2.

Description and membership function for clinicopathologic and genomic variables

(a) Clinicopathologic variables
Name Description Name & parameters of membership function
Age
Age at diagnosis
1 - 40–50, 2 - >50-60, 3 - >60-70, 4 - >70
Eth
Ethnicity
1 - Malay, 2 - Chinese, 3 - Indian
Gen
Gender
1 - Male, 2 - Female
Smoke
Smoking habit
1 - Yes, 2 - No
Drink
Alcohol drinking habit
1 - Yes, 2 - No
Chew
Quid chewing habit
1 - Yes, 2 - No
Site
Primary site of tumor
1 - Buccal mucosa, 2 - tongue
3 - floor, 4 - others
Subtype
Subtype and differentiation for SCC
1 - Well differentiated
2 - moderate differentiated
3 - poorly differentiated
Inv
Depth of Invasion front
1 - Non-cohesive, 2 - cohesive
Node
Neck nodes
1 - Negative, 2 - positive
PT
Pathological tumor staging
1 - T1, 2 - T2, 3 - T3, 4 - T4
PN
Pathological lymph nodes
1 - N0, 2- N1, 3- N2A, 4- N2B
Stage
Overall stage
1 - I, 2 - II, 3 - III, 4 - IV
Size
Size of tumor
1 - 0-2 cm, 2 - >2-4 cm, 3 - >4-6 cm, 4 - >6 cm
Treat
Type of treatment
1 - Surgery only
2 - Surgery + Radiotherapy
3 - Surgery + Chemotherapy
(b) Genomic variables
Name
Description
Name and parameters of membership function
p53
Tumor suppressor gene
1 - negative, 2 - positive
p63 Tumor suppressor gene 1 - negative, 2 - positive