This pipeline computes the correlation between significantly recurrent gene mutations and selected clinical features.
Testing the association between mutation status of 3 genes and 4 clinical features across 316 patients, no significant finding detected with Q value < 0.25.
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No gene mutations related to clinical features.
Clinical Features |
Time to Death |
AGE |
KARNOFSKY PERFORMANCE SCORE |
TUMOR STAGE |
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nMutated (%) | nWild-Type | logrank test | t-test | t-test | Fisher's exact test | |
TP53 | 276 (87%) | 40 |
0.389 (1.00) |
0.649 (1.00) |
0.585 (1.00) |
1 (1.00) |
TBP | 4 (1%) | 312 |
0.323 (1.00) |
0.191 (1.00) |
||
SRC | 4 (1%) | 312 |
0.197 (1.00) |
0.621 (1.00) |
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Mutation data file = OV-TP.mutsig.cluster.txt
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Clinical data file = OV-TP.clin.merged.picked.txt
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Number of patients = 316
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Number of significantly mutated genes = 3
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Number of selected clinical features = 4
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Exclude genes that fewer than K tumors have mutations, K = 3
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, two-tailed Student's t test with unequal variance (Lehmann and Romano 2005) was applied to compare the clinical values between tumors with and without gene mutations using 't.test' function in R
For binary or multi-class clinical features (nominal or ordinal), two-tailed Fisher's exact tests (Fisher 1922) were used to estimate the P values using the 'fisher.test' function in R
For multiple hypothesis correction, Q value is the False Discovery Rate (FDR) analogue of the P value (Benjamini and Hochberg 1995), defined as the minimum FDR at which the test may be called significant. We used the 'Benjamini and Hochberg' method of 'p.adjust' function in R to convert P values into Q values.
This is an experimental feature. The full results of the analysis summarized in this report can be downloaded from the TCGA Data Coordination Center.