# Clustering Approach 1 : CN_CNMF
Index	Clinical feature name	Test type	P value	Comment
1	Time to Death	logrank test	0.0222265313197478	Range of duration = 0.07 to 210.94, nDeath = 138, nCensor = 230
2	AGE	ANOVA	0.39888955565745	Range of values = 19 to 90, Mean = 60.7399, StdDev = 12.272
3	NEOPLASM.DISEASESTAGE	Chi-square test	0.0326282978646186	nTypes = 5 (STAGE I/STAGE II/STAGE III/STAGE IVA/STAGE IVB), nPatients = 24/58/59/174/6, nMissing = 52
4	PATHOLOGY.T.STAGE	Chi-square test	0.238756421589438	nTypes = 4 (T1/T2/T3/T4), nPatients = 37/95/76/118, nMissing = 47
5	PATHOLOGY.N.STAGE	Chi-square test	0.0212236478777005	nTypes = 4 (N0/N1/N2/N3), nPatients = 125/45/117/5, nMissing = 81
6	PATHOLOGY.M.STAGE	Fisher's exact test	1.00000000000003	nTypes = 2 (M0/MX), nPatients = 89/28, nMissing = 256
7	GENDER	Fisher's exact test	0.000201750636815152	nTypes = 2 (FEMALE/MALE), nPatients = 107/266
8	HISTOLOGICAL.TYPE	Chi-square test	0.117858784609827	nTypes = 3 (HEAD AND NECK SQUAMOUS CELL CARCINOMA/HEAD AND NECK SQUAMOUS CELL CARCINOMA  SPINDLE CELL VARIANT/HEAD AND NECK SQUAMOUS CELL CARCINOMA BASALOID TYPE), nPatients = 368/1/4
9	RADIATIONS.RADIATION.REGIMENINDICATION	Fisher's exact test	0.734282978052843	nTypes = 2 (NO/YES), nPatients = 74/299
10	NUMBERPACKYEARSSMOKED	ANOVA	0.0153417766324129	Range of values = 0.01685 to 300, Mean = 47.5166, StdDev = 38.8222, nMissing = 164
11	YEAROFTOBACCOSMOKINGONSET	ANOVA	0.0448905159927144	Range of values = 1928 to 2001, Mean = 1966.44, StdDev = 12.7194, nMissing = 165
12	NUMBER.OF.LYMPH.NODES	ANOVA	0.0575603182753466	Range of values = 0 to 44, Mean = 2.4911, StdDev = 4.92814, nMissing = 92
