Correlation between copy number variations of arm-level result and selected clinical features
Liver Hepatocellular Carcinoma (Primary solid tumor)
16 April 2014  |  analyses__2014_04_16
Maintainer Information
Citation Information
Maintained by TCGA GDAC Team (Broad Institute/MD Anderson Cancer Center/Harvard Medical School)
Cite as Broad Institute TCGA Genome Data Analysis Center (2014): Correlation between copy number variations of arm-level result and selected clinical features. Broad Institute of MIT and Harvard. doi:10.7908/C1PZ57FJ
Overview
Introduction

This pipeline computes the correlation between significant arm-level copy number variations (cnvs) and selected clinical features.

Summary

Testing the association between copy number variation 80 arm-level events and 8 clinical features across 149 patients, no significant finding detected with Q value < 0.25.

  • No arm-level cnvs related to clinical features.

Results
Overview of the results

Table 1.  Get Full Table Overview of the association between significant copy number variation of 80 arm-level events and 8 clinical features. Shown in the table are P values (Q values). Thresholded by Q value < 0.25, no significant finding detected.

Clinical
Features
Time
to
Death
AGE NEOPLASM
DISEASESTAGE
PATHOLOGY
T
STAGE
PATHOLOGY
N
STAGE
PATHOLOGY
M
STAGE
GENDER COMPLETENESS
OF
RESECTION
nCNV (%) nWild-Type logrank test t-test Chi-square test Fisher's exact test Fisher's exact test Fisher's exact test Fisher's exact test Fisher's exact test
1p gain 20 (13%) 129 0.667
(1.00)
0.958
(1.00)
0.683
(1.00)
0.0745
(1.00)
1
(1.00)
0.596
(1.00)
0.0841
(1.00)
0.271
(1.00)
1q gain 85 (57%) 64 0.0789
(1.00)
0.638
(1.00)
0.022
(1.00)
0.00523
(1.00)
0.587
(1.00)
0.314
(1.00)
0.178
(1.00)
0.613
(1.00)
2p gain 24 (16%) 125 0.894
(1.00)
0.452
(1.00)
0.664
(1.00)
0.726
(1.00)
0.058
(1.00)
0.654
(1.00)
0.0123
(1.00)
0.162
(1.00)
2q gain 19 (13%) 130 0.825
(1.00)
0.76
(1.00)
0.807
(1.00)
0.979
(1.00)
0.321
(1.00)
0.422
(1.00)
0.01
(1.00)
0.298
(1.00)
3p gain 13 (9%) 136 0.379
(1.00)
0.403
(1.00)
0.976
(1.00)
0.665
(1.00)
0.197
(1.00)
0.8
(1.00)
0.252
(1.00)
0.718
(1.00)
3q gain 14 (9%) 135 0.207
(1.00)
0.346
(1.00)
0.976
(1.00)
0.898
(1.00)
0.197
(1.00)
1
(1.00)
0.567
(1.00)
0.732
(1.00)
4p gain 12 (8%) 137 0.0796
(1.00)
0.338
(1.00)
0.619
(1.00)
0.701
(1.00)
1
(1.00)
0.582
(1.00)
0.539
(1.00)
0.851
(1.00)
4q gain 4 (3%) 145 0.802
(1.00)
0.453
(1.00)
1
(1.00)
1
(1.00)
1
(1.00)
0.612
(1.00)
0.643
(1.00)
0.128
(1.00)
5p gain 58 (39%) 91 0.503
(1.00)
0.434
(1.00)
0.165
(1.00)
0.0282
(1.00)
0.294
(1.00)
0.389
(1.00)
0.865
(1.00)
0.891
(1.00)
5q gain 44 (30%) 105 0.472
(1.00)
0.294
(1.00)
0.656
(1.00)
0.495
(1.00)
0.557
(1.00)
0.78
(1.00)
0.467
(1.00)
0.519
(1.00)
6p gain 39 (26%) 110 0.133
(1.00)
0.69
(1.00)
0.532
(1.00)
0.64
(1.00)
1
(1.00)
0.254
(1.00)
0.449
(1.00)
0.486
(1.00)
6q gain 21 (14%) 128 0.414
(1.00)
0.165
(1.00)
0.142
(1.00)
0.86
(1.00)
1
(1.00)
0.0639
(1.00)
0.636
(1.00)
0.193
(1.00)
7p gain 47 (32%) 102 0.371
(1.00)
0.131
(1.00)
0.579
(1.00)
0.312
(1.00)
0.189
(1.00)
0.524
(1.00)
0.368
(1.00)
0.672
(1.00)
7q gain 48 (32%) 101 0.802
(1.00)
0.276
(1.00)
0.462
(1.00)
0.289
(1.00)
0.213
(1.00)
0.624
(1.00)
1
(1.00)
0.831
(1.00)
8p gain 28 (19%) 121 0.694
(1.00)
0.113
(1.00)
0.236
(1.00)
0.213
(1.00)
1
(1.00)
0.202
(1.00)
0.83
(1.00)
0.234
(1.00)
8q gain 74 (50%) 75 0.913
(1.00)
0.773
(1.00)
0.317
(1.00)
0.551
(1.00)
1
(1.00)
0.711
(1.00)
0.0289
(1.00)
0.83
(1.00)
9p gain 6 (4%) 143 0.798
(1.00)
0.662
(1.00)
0.367
(1.00)
0.16
(1.00)
1
(1.00)
1
(1.00)
0.678
(1.00)
0.433
(1.00)
9q gain 6 (4%) 143 0.198
(1.00)
0.828
(1.00)
0.912
(1.00)
0.694
(1.00)
1
(1.00)
1
(1.00)
0.208
(1.00)
0.433
(1.00)
10p gain 21 (14%) 128 0.711
(1.00)
0.0972
(1.00)
0.415
(1.00)
0.286
(1.00)
1
(1.00)
0.452
(1.00)
0.81
(1.00)
1
(1.00)
10q gain 13 (9%) 136 0.416
(1.00)
0.241
(1.00)
0.475
(1.00)
0.594
(1.00)
1
(1.00)
0.355
(1.00)
0.372
(1.00)
0.594
(1.00)
11p gain 10 (7%) 139 0.9
(1.00)
0.68
(1.00)
0.0399
(1.00)
0.447
(1.00)
1
(1.00)
0.0535
(1.00)
0.741
(1.00)
0.102
(1.00)
11q gain 9 (6%) 140 0.594
(1.00)
0.567
(1.00)
0.0316
(1.00)
0.59
(1.00)
1
(1.00)
0.0601
(1.00)
1
(1.00)
0.0911
(1.00)
12p gain 14 (9%) 135 0.837
(1.00)
0.377
(1.00)
0.952
(1.00)
0.849
(1.00)
1
(1.00)
0.482
(1.00)
0.159
(1.00)
0.718
(1.00)
12q gain 18 (12%) 131 0.544
(1.00)
0.265
(1.00)
0.569
(1.00)
0.56
(1.00)
0.344
(1.00)
0.179
(1.00)
0.0181
(1.00)
0.609
(1.00)
13q gain 8 (5%) 141 0.103
(1.00)
0.639
(1.00)
0.688
(1.00)
0.825
(1.00)
0.171
(1.00)
1
(1.00)
0.712
(1.00)
0.493
(1.00)
14q gain 8 (5%) 141 0.907
(1.00)
0.638
(1.00)
0.027
(1.00)
0.936
(1.00)
1
(1.00)
0.207
(1.00)
1
(1.00)
0.0691
(1.00)
15q gain 14 (9%) 135 0.0891
(1.00)
0.803
(1.00)
0.819
(1.00)
0.352
(1.00)
1
(1.00)
1
(1.00)
0.567
(1.00)
0.855
(1.00)
16p gain 12 (8%) 137 0.978
(1.00)
0.335
(1.00)
0.255
(1.00)
0.184
(1.00)
1
(1.00)
1
(1.00)
1
(1.00)
1
(1.00)
16q gain 5 (3%) 144 0.594
(1.00)
0.205
(1.00)
0.797
(1.00)
0.142
(1.00)
1
(1.00)
1
(1.00)
0.378
(1.00)
1
(1.00)
17p gain 13 (9%) 136 0.444
(1.00)
0.492
(1.00)
0.19
(1.00)
0.473
(1.00)
1
(1.00)
0.602
(1.00)
1
(1.00)
0.49
(1.00)
17q gain 39 (26%) 110 0.27
(1.00)
0.44
(1.00)
0.558
(1.00)
0.438
(1.00)
1
(1.00)
0.0735
(1.00)
0.255
(1.00)
0.0792
(1.00)
18p gain 10 (7%) 139 0.311
(1.00)
0.192
(1.00)
0.013
(1.00)
0.174
(1.00)
1
(1.00)
0.163
(1.00)
0.741
(1.00)
0.0371
(1.00)
18q gain 9 (6%) 140 0.357
(1.00)
0.373
(1.00)
0.0167
(1.00)
0.277
(1.00)
1
(1.00)
0.189
(1.00)
1
(1.00)
0.0309
(1.00)
19p gain 30 (20%) 119 0.468
(1.00)
0.941
(1.00)
0.123
(1.00)
0.59
(1.00)
0.511
(1.00)
0.134
(1.00)
0.0934
(1.00)
0.223
(1.00)
19q gain 34 (23%) 115 0.48
(1.00)
0.926
(1.00)
0.125
(1.00)
0.578
(1.00)
0.548
(1.00)
0.186
(1.00)
0.162
(1.00)
0.149
(1.00)
20p gain 43 (29%) 106 0.456
(1.00)
0.506
(1.00)
0.319
(1.00)
0.656
(1.00)
1
(1.00)
0.147
(1.00)
0.267
(1.00)
0.573
(1.00)
20q gain 45 (30%) 104 0.529
(1.00)
0.51
(1.00)
0.368
(1.00)
0.55
(1.00)
1
(1.00)
0.123
(1.00)
0.368
(1.00)
0.47
(1.00)
21q gain 13 (9%) 136 0.51
(1.00)
0.769
(1.00)
0.446
(1.00)
0.397
(1.00)
1
(1.00)
0.8
(1.00)
0.372
(1.00)
0.344
(1.00)
22q gain 19 (13%) 130 0.395
(1.00)
0.64
(1.00)
0.879
(1.00)
0.694
(1.00)
0.344
(1.00)
0.844
(1.00)
0.804
(1.00)
0.332
(1.00)
xq gain 28 (19%) 121 0.928
(1.00)
0.0511
(1.00)
0.953
(1.00)
0.791
(1.00)
1
(1.00)
0.233
(1.00)
0.52
(1.00)
0.529
(1.00)
1p loss 37 (25%) 112 0.916
(1.00)
0.397
(1.00)
0.535
(1.00)
0.484
(1.00)
1
(1.00)
0.0646
(1.00)
0.564
(1.00)
0.407
(1.00)
1q loss 11 (7%) 138 0.655
(1.00)
0.27
(1.00)
0.839
(1.00)
0.599
(1.00)
0.197
(1.00)
1
(1.00)
1
(1.00)
0.21
(1.00)
2p loss 11 (7%) 138 0.0601
(1.00)
0.812
(1.00)
0.833
(1.00)
0.279
(1.00)
1
(1.00)
1
(1.00)
0.53
(1.00)
0.54
(1.00)
2q loss 13 (9%) 136 0.365
(1.00)
0.871
(1.00)
0.936
(1.00)
0.594
(1.00)
1
(1.00)
0.8
(1.00)
1
(1.00)
0.28
(1.00)
3p loss 19 (13%) 130 0.0825
(1.00)
0.795
(1.00)
0.167
(1.00)
0.0155
(1.00)
0.344
(1.00)
0.235
(1.00)
0.214
(1.00)
0.575
(1.00)
3q loss 10 (7%) 139 0.0322
(1.00)
0.228
(1.00)
0.823
(1.00)
0.272
(1.00)
0.197
(1.00)
0.748
(1.00)
0.512
(1.00)
1
(1.00)
4p loss 31 (21%) 118 0.439
(1.00)
0.714
(1.00)
0.0474
(1.00)
0.335
(1.00)
0.0658
(1.00)
0.144
(1.00)
0.686
(1.00)
0.272
(1.00)
4q loss 48 (32%) 101 0.334
(1.00)
0.182
(1.00)
0.198
(1.00)
0.365
(1.00)
0.213
(1.00)
0.189
(1.00)
0.372
(1.00)
0.21
(1.00)
5p loss 10 (7%) 139 0.526
(1.00)
0.682
(1.00)
0.261
(1.00)
0.599
(1.00)
0.197
(1.00)
1
(1.00)
0.317
(1.00)
0.487
(1.00)
5q loss 14 (9%) 135 0.217
(1.00)
0.882
(1.00)
0.457
(1.00)
0.198
(1.00)
0.223
(1.00)
1
(1.00)
1
(1.00)
0.534
(1.00)
6p loss 17 (11%) 132 0.758
(1.00)
0.844
(1.00)
0.63
(1.00)
0.395
(1.00)
0.389
(1.00)
0.0196
(1.00)
0.29
(1.00)
1
(1.00)
6q loss 46 (31%) 103 0.824
(1.00)
0.0514
(1.00)
0.214
(1.00)
0.85
(1.00)
0.239
(1.00)
0.225
(1.00)
0.471
(1.00)
0.951
(1.00)
7p loss 8 (5%) 141 0.0629
(1.00)
0.642
(1.00)
0.923
(1.00)
0.596
(1.00)
1
(1.00)
0.727
(1.00)
0.0563
(1.00)
0.548
(1.00)
7q loss 11 (7%) 138 0.194
(1.00)
0.408
(1.00)
0.861
(1.00)
0.364
(1.00)
1
(1.00)
0.57
(1.00)
0.0238
(1.00)
0.266
(1.00)
8p loss 74 (50%) 75 0.317
(1.00)
0.00162
(1.00)
0.106
(1.00)
0.46
(1.00)
0.0763
(1.00)
0.39
(1.00)
0.867
(1.00)
0.584
(1.00)
8q loss 15 (10%) 134 0.653
(1.00)
0.938
(1.00)
0.276
(1.00)
0.0344
(1.00)
0.223
(1.00)
0.274
(1.00)
0.0262
(1.00)
1
(1.00)
9p loss 46 (31%) 103 0.0772
(1.00)
0.941
(1.00)
0.0498
(1.00)
0.411
(1.00)
0.213
(1.00)
0.0449
(1.00)
0.203
(1.00)
0.205
(1.00)
9q loss 48 (32%) 101 0.0179
(1.00)
0.877
(1.00)
0.0395
(1.00)
0.404
(1.00)
0.0251
(1.00)
0.0279
(1.00)
0.372
(1.00)
0.226
(1.00)
10p loss 17 (11%) 132 0.921
(1.00)
0.0468
(1.00)
0.062
(1.00)
0.245
(1.00)
0.249
(1.00)
0.833
(1.00)
0.0668
(1.00)
0.869
(1.00)
10q loss 30 (20%) 119 0.172
(1.00)
0.456
(1.00)
0.245
(1.00)
0.298
(1.00)
0.411
(1.00)
0.9
(1.00)
0.146
(1.00)
0.345
(1.00)
11p loss 24 (16%) 125 0.726
(1.00)
0.104
(1.00)
0.492
(1.00)
0.762
(1.00)
0.0437
(1.00)
1
(1.00)
0.65
(1.00)
0.684
(1.00)
11q loss 27 (18%) 122 0.981
(1.00)
0.131
(1.00)
0.509
(1.00)
0.577
(1.00)
0.0658
(1.00)
1
(1.00)
0.663
(1.00)
0.445
(1.00)
12p loss 27 (18%) 122 0.211
(1.00)
0.959
(1.00)
0.379
(1.00)
0.601
(1.00)
0.0826
(1.00)
0.467
(1.00)
1
(1.00)
0.122
(1.00)
12q loss 16 (11%) 133 0.294
(1.00)
0.559
(1.00)
0.11
(1.00)
0.933
(1.00)
1
(1.00)
0.299
(1.00)
0.285
(1.00)
0.0887
(1.00)
13q loss 52 (35%) 97 0.721
(1.00)
0.234
(1.00)
0.0986
(1.00)
0.00196
(1.00)
1
(1.00)
0.252
(1.00)
0.861
(1.00)
0.521
(1.00)
14q loss 45 (30%) 104 0.65
(1.00)
0.995
(1.00)
0.385
(1.00)
0.115
(1.00)
1
(1.00)
0.269
(1.00)
0.464
(1.00)
0.382
(1.00)
15q loss 29 (19%) 120 0.921
(1.00)
0.491
(1.00)
0.505
(1.00)
0.227
(1.00)
0.0826
(1.00)
0.0814
(1.00)
0.674
(1.00)
1
(1.00)
16p loss 42 (28%) 107 0.0157
(1.00)
0.163
(1.00)
0.192
(1.00)
0.206
(1.00)
0.201
(1.00)
0.178
(1.00)
0.853
(1.00)
0.172
(1.00)
16q loss 53 (36%) 96 0.126
(1.00)
0.052
(1.00)
0.296
(1.00)
0.17
(1.00)
0.553
(1.00)
0.408
(1.00)
1
(1.00)
0.32
(1.00)
17p loss 75 (50%) 74 0.107
(1.00)
0.462
(1.00)
0.0725
(1.00)
0.241
(1.00)
0.243
(1.00)
0.522
(1.00)
0.504
(1.00)
0.147
(1.00)
17q loss 19 (13%) 130 0.744
(1.00)
0.355
(1.00)
0.178
(1.00)
0.535
(1.00)
0.0258
(1.00)
0.58
(1.00)
0.804
(1.00)
0.706
(1.00)
18p loss 27 (18%) 122 0.675
(1.00)
0.854
(1.00)
0.758
(1.00)
0.357
(1.00)
0.432
(1.00)
0.299
(1.00)
0.521
(1.00)
0.784
(1.00)
18q loss 30 (20%) 119 0.785
(1.00)
0.741
(1.00)
0.789
(1.00)
0.779
(1.00)
0.472
(1.00)
0.197
(1.00)
0.209
(1.00)
0.611
(1.00)
19p loss 16 (11%) 133 0.0274
(1.00)
0.958
(1.00)
0.929
(1.00)
0.545
(1.00)
0.273
(1.00)
0.662
(1.00)
0.285
(1.00)
0.111
(1.00)
19q loss 11 (7%) 138 0.1
(1.00)
0.734
(1.00)
0.961
(1.00)
0.828
(1.00)
0.197
(1.00)
0.57
(1.00)
0.53
(1.00)
0.175
(1.00)
20p loss 8 (5%) 141 0.302
(1.00)
0.349
(1.00)
0.388
(1.00)
0.491
(1.00)
1
(1.00)
0.207
(1.00)
1
(1.00)
1
(1.00)
20q loss 4 (3%) 145 0.74
(1.00)
0.969
(1.00)
0.969
(1.00)
0.512
(1.00)
1
(1.00)
0.612
(1.00)
1
(1.00)
1
(1.00)
21q loss 40 (27%) 109 0.0696
(1.00)
0.732
(1.00)
0.275
(1.00)
0.789
(1.00)
0.142
(1.00)
0.169
(1.00)
0.0385
(1.00)
0.331
(1.00)
22q loss 31 (21%) 118 0.375
(1.00)
0.276
(1.00)
0.73
(1.00)
0.174
(1.00)
1
(1.00)
0.395
(1.00)
0.535
(1.00)
0.189
(1.00)
xq loss 20 (13%) 129 0.541
(1.00)
0.299
(1.00)
0.64
(1.00)
0.383
(1.00)
0.321
(1.00)
0.441
(1.00)
0.465
(1.00)
0.798
(1.00)
Methods & Data
Input
  • Copy number data file = transformed.cor.cli.txt

  • Clinical data file = LIHC-TP.merged_data.txt

  • Number of patients = 149

  • Number of significantly arm-level cnvs = 80

  • Number of selected clinical features = 8

  • Exclude regions that fewer than K tumors have mutations, K = 3

Survival analysis

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

Student's t-test analysis

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

Chi-square test

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

Fisher's exact test

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

Q value calculation

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.

Download Results

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.

References
[1] Bland and Altman, Statistics notes: The logrank test, BMJ 328(7447):1073 (2004)
[2] Lehmann and Romano, Testing Statistical Hypotheses (3E ed.), New York: Springer. ISBN 0387988645 (2005)
[3] Greenwood and Nikulin, A guide to chi-squared testing, Wiley, New York. ISBN 047155779X (1996)
[4] Fisher, R.A., On the interpretation of chi-square from contingency tables, and the calculation of P, Journal of the Royal Statistical Society 85(1):87-94 (1922)
[5] Benjamini and Hochberg, Controlling the false discovery rate: a practical and powerful approach to multiple testing, Journal of the Royal Statistical Society Series B 59:289-300 (1995)