This pipeline computes the correlation between significant copy number variation (cnv focal) genes and selected clinical features.
Testing the association between copy number variation 2 focal events and 11 clinical features across 66 patients, no significant finding detected with Q value < 0.25.
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No focal cnvs related to clinical features.
Clinical Features |
Time to Death |
AGE |
NEOPLASM DISEASESTAGE |
PATHOLOGY T STAGE |
PATHOLOGY N STAGE |
PATHOLOGY M STAGE |
GENDER |
KARNOFSKY PERFORMANCE SCORE |
NUMBERPACKYEARSSMOKED | RACE | ETHNICITY | ||
nCNV (%) | nWild-Type | logrank test | Wilcoxon-test | Fisher's exact test | Fisher's exact test | Fisher's exact test | Fisher's exact test | Fisher's exact test | Wilcoxon-test | Wilcoxon-test | Fisher's exact test | Fisher's exact test | |
amp 8q11 23 | 19 (29%) | 47 |
100 (1.00) |
0.335 (1.00) |
0.117 (1.00) |
0.838 (1.00) |
0.33 (1.00) |
0.137 (1.00) |
0.412 (1.00) |
1 (1.00) |
0.234 (1.00) |
0.791 (1.00) |
0.098 (1.00) |
amp 15q22 31 | 23 (35%) | 43 |
100 (1.00) |
0.332 (1.00) |
0.127 (1.00) |
0.395 (1.00) |
0.141 (1.00) |
0.112 (1.00) |
0.601 (1.00) |
1 (1.00) |
0.784 (1.00) |
1 (1.00) |
0.277 (1.00) |
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Copy number data file = transformed.cor.cli.txt
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Clinical data file = KICH-TP.merged_data.txt
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Number of patients = 66
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Number of significantly focal cnvs = 2
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Number of selected clinical features = 11
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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 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.
In addition to the links below, the full results of the analysis summarized in this report can also be downloaded programmatically using firehose_get, or interactively from either the Broad GDAC website or TCGA Data Coordination Center Portal.