Comparative Search Advanced Search Quick Info Gene Reference Comparative Search (Comparative Search Help Page) Use this page to perform various different statistical tests across specific sub-populations. 1. Comparative Tests: Select Test you wish to perform: R-Test: R-Test: Gene Expression of ALL Smokers vs. Pack Years R-Test: Gene Expression of Current Smokers vs. Pack Years R-Test: Gene Expression of Former Smokers vs. Pack Years R-Test: Gene Expression of All Patients vs. Age R-Test: Gene Expression of All Smokers vs. Age R-Test: Gene Expression of Current Smokers vs. Age R-Test: Gene Expression of Former Smokers vs. Age R-Test: Gene Expression of Never Smokers vs. Age R-Test: Gene Expression of All Patients vs. (FEV1/FVC)% R-Test: Gene Expression of All Patients vs. FEV1% R-Test: Gene Expression of Current Smokers vs. (FEV1/FVC)% R-Test: Gene Expression of Current Smokers vs. FEV1% R-Test: Gene Expression of Never Smokers vs. (FEV1/FVC)% R-Test: Gene Expression of Never Smokers vs. FEV1% Spearman: Spearman: Gene Expression of ALL Smokers vs. Pack Years Spearman: Gene Expression of Current Smokers vs. Pack Years Spearman: Gene Expression of Former Smokers vs. Pack Years Spearman: Gene Expression of All Patients vs. Age Spearman: Gene Expression of All Smokers vs. Age Spearman: Gene Expression of Current Smokers vs. Age Spearman: Gene Expression of Former Smokers vs. Age Spearman: Gene Expression of Never Smokers vs. Age Spearman: Gene Expression of All Patients vs. (FEV1/FVC)% Spearman: Gene Expression of All Patients vs. FEV1% Spearman: Gene Expression of Current Smokers vs. (FEV1/FVC)% Spearman: Gene Expression of Current Smokers vs. FEV1% Spearman: Gene Expression of Never Smokers vs. (FEV1/FVC)% Spearman: Gene Expression of Never Smokers vs. FEV1% T-Test: T-Test: Current AND Former Smokers vs. Never Smokers T-Test: Current Smokers vs. Never Smokers T-Test: Current Smokers vs. Former Smokers T-Test: Former Smokers vs. Never Smokers T-Test: Race: Caucasian Current Smokers vs. African American Current Smokers Wilcoxon Rank Test: Wilcoxon: ALL Smokers vs. Never Smokers Wilcoxon: Current Smokers vs. Never Smokers Wilcoxon: Current Smokers vs. Former Smokers Wilcoxon: Former Smokers vs. Never Smokers T-Test: Race: Caucasians vs. African Americans 2. R-Test (Pearson) Threshold OR Spearman Correlation Threshold: Return all genes which have a Pearson Coefficient greater than AND whose Pearson Coefficient has a confidence P-value better than - A threshold of .70 indicates a Pearson correlation coefficient greater than 0.70 or less than -0.70. - Valid Pearson correlation coefficient values are between -1 and 1. - P-values of Pearson Coefficients (R-values) indicate how unlikely a given correlation coefficient, r, will occur given NO relationship between the two compared variables. This P-value is dependant on the R-value itself and the sample size used to generate it. 3. T-Test Threshold or Wilcoxon Threshold (P-Value): Raw P-Value Adjusted Q-Value Permuted P-Value Threshold set at: A p-value of 0.001 indicates a 99.9% confidence interval. Permutation p-values only exist for the T-Test comparisons (not for Wilcoxon) 4. Restrict search by GO Keyword: 5. Sorting of results: For R-Test searches: Sort by Min P-value MAX R-score MIN R-score Chromosomal Location Affx_Id For T-Test searches: Sort by MIN P-value Fold-Change UP Fold-Change DOWN Chromosomal Location Affx_Id