Codesheet for NWTS expanded datafiles: nwts.ex and nwtsb.ex

Var         Description               Codes
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stage       Stage of disease          1=I
                                      2=II 
                                      3=III 
                                      4=IV

instit      Institutional histology   1 = Favorable (FH)
                                      2 = Unfavorable (UH)

histol      Central Path histology    1 = Favorable (FH)
                                      2 = Unfavorable (UH)

cc          Case-control status       0 = Control (not relapsed or died)
                                      1 = Case (relapsed or died)

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Reference: Breslow & Chatterjee, Applied Statistics 48:457-68, 1999