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-5]-<br />

91 Ftdels obtained in 8 ald 9 .rre oapnred to each oc•wr as nell<br />

as to rYe avMlest aodels obtained :n 1 rhWwgh S .<br />

10) fie • .ar_ables seleeted u poteeriai cmfounYss Wre<br />

included in r/w eodels cbtailnd in I uuough S .<br />

avkP2f]l I1Nf£<br />

11) A aingle eodel tlrt cmtu»ed the three mutuslly acluaive R!S[cfP3<br />

epan¢e vaciahlee Ilnuaehold . wftleca ard sccial esposurel and thhe co+taaxkrs<br />

.*s titted to the dete .<br />

12) A aadei wes fitted to the daG that caaK .ined only the tw<br />

variables with signifiaet effects eed the m+fouders .<br />

http://legacy.library.ucsf.edu/tid/dsk94c00/pdf<br />

This c`xpter is divided into three sect,icus . 1M tint is<br />

devoted to the desctiption af the study aaple !n terne of snHO-<br />

dmcgrapsic cl+atacteristio . in additinn. it dwzis tt : distriMnioo<br />

of the variables used to aatch oses to oorRtols and prneets the<br />

distrihution of casea regerdiey histologic diaqncaes . lhe sewd<br />

section easiivea the distribution of osstain variables not tskm into<br />

amount by the aistChiag ptaoen - variables wfLLdh . by their nature,<br />

n .y be cornidered as potential mnfoeders of the asaociatiee Eet+een<br />

pessi•.e saoking and lueq cancer (for exanple . pipe end cigar asukLngl .<br />

7hM! third aAd last aettloT la slbd(Yided into four auhsectSGtts . eadf<br />

ane reporting the aaseseaar, of the aseociation bet .Ken luq uooer<br />

aM a different neuurenent of e~aaure to pessivs wokiyr, .<br />

-54

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