This pipeline computes the correlation between cancer subtypes identified by different molecular patterns and selected clinical features.
Testing the association between subtypes identified by 4 different clustering approaches and 7 clinical features across 30 patients, 4 significant findings detected with P value < 0.05.
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CNMF clustering analysis on array-based mRNA expression data identified 3 subtypes that correlate to 'HISTOLOGICAL.TYPE'.
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Consensus hierarchical clustering analysis on array-based mRNA expression data identified 3 subtypes that correlate to 'HISTOLOGICAL.TYPE'.
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CNMF clustering analysis on sequencing-based miR expression data identified 2 subtypes that do not correlate to any clinical features.
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Consensus hierarchical clustering analysis on sequencing-based miR expression data identified 3 subtypes that correlate to 'Time to Death' and 'HISTOLOGICAL.TYPE'.
Clinical Features |
Statistical Tests |
mRNA CNMF subtypes |
mRNA cHierClus subtypes |
MIRseq CNMF subtypes |
MIRseq cHierClus subtypes |
Time to Death | logrank test | 0.0944 | 0.126 | 0.576 | 0.0158 |
AGE | ANOVA | 0.326 | 0.467 | 0.389 | 0.988 |
GENDER | Fisher's exact test | 0.101 | 0.172 | 1 | 0.605 |
KARNOFSKY PERFORMANCE SCORE | ANOVA | 0.441 | 0.441 | 0.0754 | 0.39 |
HISTOLOGICAL TYPE | Chi-square test | 0.0226 | 0.0136 | 0.486 | 0.00614 |
RADIATIONS RADIATION REGIMENINDICATION | Fisher's exact test | 0.384 | 0.757 | 0.7 | 0.886 |
NEOADJUVANT THERAPY | Fisher's exact test | 0.883 | 0.685 | 1 | 0.707 |
Cluster Labels | 1 | 2 | 3 |
---|---|---|---|
Number of samples | 9 | 10 | 8 |
P value = 0.0944 (logrank test)
nPatients | nDeath | Duration Range (Median), Month | |
---|---|---|---|
ALL | 26 | 9 | 8.0 - 134.3 (47.3) |
subtype1 | 9 | 4 | 10.6 - 130.8 (43.9) |
subtype2 | 9 | 3 | 8.0 - 78.2 (41.1) |
subtype3 | 8 | 2 | 14.4 - 134.3 (51.3) |
P value = 0.326 (ANOVA)
nPatients | Mean (Std.Dev) | |
---|---|---|
ALL | 27 | 39.3 (9.1) |
subtype1 | 9 | 39.2 (6.2) |
subtype2 | 10 | 42.3 (7.6) |
subtype3 | 8 | 35.8 (12.6) |
P value = 0.101 (Fisher's exact test)
nPatients | FEMALE | MALE |
---|---|---|
ALL | 9 | 18 |
subtype1 | 2 | 7 |
subtype2 | 6 | 4 |
subtype3 | 1 | 7 |
P value = 0.441 (ANOVA)
nPatients | Mean (Std.Dev) | |
---|---|---|
ALL | 17 | 88.8 (12.2) |
subtype1 | 7 | 84.3 (16.2) |
subtype2 | 7 | 92.9 (7.6) |
subtype3 | 3 | 90.0 (10.0) |
P value = 0.0226 (Chi-square test)
nPatients | ASTROCYTOMA | OLIGOASTROCYTOMA | OLIGODENDROGLIOMA |
---|---|---|---|
ALL | 10 | 9 | 8 |
subtype1 | 7 | 2 | 0 |
subtype2 | 2 | 3 | 5 |
subtype3 | 1 | 4 | 3 |
P value = 0.384 (Fisher's exact test)
nPatients | NO | YES |
---|---|---|
ALL | 19 | 8 |
subtype1 | 7 | 2 |
subtype2 | 8 | 2 |
subtype3 | 4 | 4 |
P value = 0.883 (Fisher's exact test)
nPatients | NO | YES |
---|---|---|
ALL | 10 | 17 |
subtype1 | 4 | 5 |
subtype2 | 3 | 7 |
subtype3 | 3 | 5 |
Cluster Labels | 1 | 2 | 3 |
---|---|---|---|
Number of samples | 9 | 7 | 11 |
P value = 0.126 (logrank test)
nPatients | nDeath | Duration Range (Median), Month | |
---|---|---|---|
ALL | 26 | 9 | 8.0 - 134.3 (47.3) |
subtype1 | 9 | 4 | 10.6 - 130.8 (43.9) |
subtype2 | 7 | 2 | 14.4 - 134.3 (52.4) |
subtype3 | 10 | 3 | 8.0 - 78.2 (43.9) |
P value = 0.467 (ANOVA)
nPatients | Mean (Std.Dev) | |
---|---|---|
ALL | 27 | 39.3 (9.1) |
subtype1 | 9 | 39.2 (6.2) |
subtype2 | 7 | 36.0 (13.6) |
subtype3 | 11 | 41.5 (7.6) |
P value = 0.172 (Fisher's exact test)
nPatients | FEMALE | MALE |
---|---|---|
ALL | 9 | 18 |
subtype1 | 2 | 7 |
subtype2 | 1 | 6 |
subtype3 | 6 | 5 |
P value = 0.441 (ANOVA)
nPatients | Mean (Std.Dev) | |
---|---|---|
ALL | 17 | 88.8 (12.2) |
subtype1 | 7 | 84.3 (16.2) |
subtype2 | 3 | 90.0 (10.0) |
subtype3 | 7 | 92.9 (7.6) |
P value = 0.0136 (Chi-square test)
nPatients | ASTROCYTOMA | OLIGOASTROCYTOMA | OLIGODENDROGLIOMA |
---|---|---|---|
ALL | 10 | 9 | 8 |
subtype1 | 7 | 2 | 0 |
subtype2 | 0 | 4 | 3 |
subtype3 | 3 | 3 | 5 |
P value = 0.757 (Fisher's exact test)
nPatients | NO | YES |
---|---|---|
ALL | 19 | 8 |
subtype1 | 7 | 2 |
subtype2 | 4 | 3 |
subtype3 | 8 | 3 |
P value = 0.685 (Fisher's exact test)
nPatients | NO | YES |
---|---|---|
ALL | 10 | 17 |
subtype1 | 4 | 5 |
subtype2 | 3 | 4 |
subtype3 | 3 | 8 |
Cluster Labels | 1 | 2 |
---|---|---|
Number of samples | 15 | 15 |
P value = 0.576 (logrank test)
nPatients | nDeath | Duration Range (Median), Month | |
---|---|---|---|
ALL | 29 | 10 | 7.7 - 134.3 (44.5) |
subtype1 | 15 | 5 | 7.7 - 134.3 (46.6) |
subtype2 | 14 | 5 | 9.5 - 130.8 (36.5) |
P value = 0.389 (t-test)
nPatients | Mean (Std.Dev) | |
---|---|---|
ALL | 30 | 40.9 (10.5) |
subtype1 | 15 | 42.6 (13.6) |
subtype2 | 15 | 39.2 (6.3) |
P value = 1 (Fisher's exact test)
nPatients | FEMALE | MALE |
---|---|---|
ALL | 21 | 9 |
subtype1 | 11 | 4 |
subtype2 | 10 | 5 |
P value = 0.0754 (t-test)
nPatients | Mean (Std.Dev) | |
---|---|---|
ALL | 19 | 89.5 (11.8) |
subtype1 | 9 | 94.4 (7.3) |
subtype2 | 10 | 85.0 (13.5) |
P value = 0.486 (Chi-square test)
nPatients | ASTROCYTOMA | OLIGOASTROCYTOMA | OLIGODENDROGLIOMA |
---|---|---|---|
ALL | 12 | 9 | 9 |
subtype1 | 5 | 4 | 6 |
subtype2 | 7 | 5 | 3 |
P value = 0.7 (Fisher's exact test)
nPatients | NO | YES |
---|---|---|
ALL | 10 | 20 |
subtype1 | 6 | 9 |
subtype2 | 4 | 11 |
P value = 1 (Fisher's exact test)
nPatients | NO | YES |
---|---|---|
ALL | 19 | 11 |
subtype1 | 9 | 6 |
subtype2 | 10 | 5 |
Cluster Labels | 1 | 2 | 3 |
---|---|---|---|
Number of samples | 12 | 11 | 7 |
P value = 0.0158 (logrank test)
nPatients | nDeath | Duration Range (Median), Month | |
---|---|---|---|
ALL | 29 | 10 | 7.7 - 134.3 (44.5) |
subtype1 | 12 | 2 | 8.0 - 134.3 (51.3) |
subtype2 | 11 | 5 | 7.7 - 130.8 (46.6) |
subtype3 | 6 | 3 | 9.5 - 78.2 (25.9) |
P value = 0.988 (ANOVA)
nPatients | Mean (Std.Dev) | |
---|---|---|
ALL | 30 | 40.9 (10.5) |
subtype1 | 12 | 40.8 (13.1) |
subtype2 | 11 | 40.6 (10.4) |
subtype3 | 7 | 41.4 (6.3) |
P value = 0.605 (Fisher's exact test)
nPatients | FEMALE | MALE |
---|---|---|
ALL | 21 | 9 |
subtype1 | 8 | 4 |
subtype2 | 9 | 2 |
subtype3 | 4 | 3 |
P value = 0.39 (ANOVA)
nPatients | Mean (Std.Dev) | |
---|---|---|
ALL | 19 | 89.5 (11.8) |
subtype1 | 7 | 92.9 (9.5) |
subtype2 | 8 | 85.0 (15.1) |
subtype3 | 4 | 92.5 (5.0) |
P value = 0.00614 (Chi-square test)
nPatients | ASTROCYTOMA | OLIGOASTROCYTOMA | OLIGODENDROGLIOMA |
---|---|---|---|
ALL | 12 | 9 | 9 |
subtype1 | 1 | 5 | 6 |
subtype2 | 9 | 2 | 0 |
subtype3 | 2 | 2 | 3 |
P value = 0.886 (Fisher's exact test)
nPatients | NO | YES |
---|---|---|
ALL | 10 | 20 |
subtype1 | 4 | 8 |
subtype2 | 3 | 8 |
subtype3 | 3 | 4 |
P value = 0.707 (Fisher's exact test)
nPatients | NO | YES |
---|---|---|
ALL | 19 | 11 |
subtype1 | 7 | 5 |
subtype2 | 8 | 3 |
subtype3 | 4 | 3 |
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Cluster data file = LGG.mergedcluster.txt
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Clinical data file = LGG.clin.merged.picked.txt
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Number of patients = 30
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Number of clustering approaches = 4
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Number of selected clinical features = 7
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Exclude small clusters that include fewer than K patients, K = 3
consensus non-negative matrix factorization clustering approach (Brunet et al. 2004)
Resampling-based clustering method (Monti et al. 2003)
For survival clinical features, the Kaplan-Meier survival curves of tumors with and without gene mutations were plotted and the statistical significance P values were estimated by logrank test (Bland and Altman 2004) using the 'survdiff' function in R
For continuous numerical clinical features, one-way analysis of variance (Howell 2002) was applied to compare the clinical values between tumor subtypes using 'anova' function in R
For binary clinical features, two-tailed Fisher's exact tests (Fisher 1922) were used to estimate the P values using the 'fisher.test' function in R
For multi-class clinical features (nominal or ordinal), Chi-square tests (Greenwood and Nikulin 1996) were used to estimate the P values using the 'chisq.test' function in R
For continuous numerical clinical features, two-tailed Student's t test with unequal variance (Lehmann and Romano 2005) was applied to compare the clinical values between two tumor subtypes using 't.test' function in R
This is an experimental feature. Location of data archives could not be determined.