EVOLUTION-MANAGER
Edit File: lung.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: NCCTG Lung Cancer Data</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="R.css" /> </head><body> <table width="100%" summary="page for lung {survival}"><tr><td>lung {survival}</td><td style="text-align: right;">R Documentation</td></tr></table> <h2>NCCTG Lung Cancer Data</h2> <h3>Description</h3> <p>Survival in patients with advanced lung cancer from the North Central Cancer Treatment Group. Performance scores rate how well the patient can perform usual daily activities. </p> <h3>Usage</h3> <pre> lung cancer </pre> <h3>Format</h3> <table summary="Rd table"> <tr> <td style="text-align: left;"> inst:</td><td style="text-align: left;"> Institution code</td> </tr> <tr> <td style="text-align: left;"> time:</td><td style="text-align: left;"> Survival time in days</td> </tr> <tr> <td style="text-align: left;"> status:</td><td style="text-align: left;"> censoring status 1=censored, 2=dead</td> </tr> <tr> <td style="text-align: left;"> age:</td><td style="text-align: left;"> Age in years</td> </tr> <tr> <td style="text-align: left;"> sex:</td><td style="text-align: left;"> Male=1 Female=2</td> </tr> <tr> <td style="text-align: left;"> ph.ecog:</td><td style="text-align: left;"> ECOG performance score (0=good 5=dead)</td> </tr> <tr> <td style="text-align: left;"> ph.karno:</td><td style="text-align: left;"> Karnofsky performance score (bad=0-good=100) rated by physician</td> </tr> <tr> <td style="text-align: left;"> pat.karno:</td><td style="text-align: left;"> Karnofsky performance score as rated by patient</td> </tr> <tr> <td style="text-align: left;"> meal.cal:</td><td style="text-align: left;"> Calories consumed at meals</td> </tr> <tr> <td style="text-align: left;"> wt.loss:</td><td style="text-align: left;"> Weight loss in last six months</td> </tr> <tr> <td style="text-align: left;"> </td> </tr> </table> <h3>Note</h3> <p>The use of 1/2 for alive/dead instead of the usual 0/1 is a historical footnote. For data contained on punch cards, IBM 360 Fortran treated blank as a zero, which led to a policy within the section of Biostatistics to never use "0" as a data value since one could not distinguish it from a missing value. The policy became a habit, as is often the case; and the 1/2 coding endured long beyond the demise of punch cards and Fortran. </p> <h3>Source</h3> <p>Terry Therneau</p> <h3>References</h3> <p>Loprinzi CL. Laurie JA. Wieand HS. Krook JE. Novotny PJ. Kugler JW. Bartel J. Law M. Bateman M. Klatt NE. et al. Prospective evaluation of prognostic variables from patient-completed questionnaires. North Central Cancer Treatment Group. Journal of Clinical Oncology. 12(3):601-7, 1994. </p> <hr /><div style="text-align: center;">[Package <em>survival</em> version 2.44-1.1 <a href="00Index.html">Index</a>]</div> </body></html>