~-.~JiVIi~ s«M .

In
wdiffereneiatai ^el1 typn .
A msa c ;e.•rc assacia[_on ' s fou:d bero,eer: hl.stn!oqic :ype and
gpX . MG6t studie9 a9tCe thet epideifrcld rfl'^llYllla is TJCe frequOR lf1
ma!es tlw+ finela
. 7fie pivporcim of male raxs classified as
epideeroid earci+nies nn9as Ue*.ween 381 qu1 64" wr fe :mles, the
val :xs are 6etweeA 21% end. 551 . 1Ye ottrt notabie dSfel~- occ.as
an,,4 ademurc~mies : this taor is e=h so:e mnm : evrrwl .aien tlw,
nm . ap to 52% of a11 1 :m9 earner casa in faftles have bem repa'tc1
to `slong to these qraip, M~ 331 is the highest aavo9 aen to be
pces,ced in recent studia .
17w differenm in tmeki+sl eabits Cet .een seA and .omen aulgeses
dre such iubits s .y 6e raspotnlDls for the diffeZms.a in histoloqic
types avq the .esu . Oefortontaly . this has net been pmperly
assesasd in any at•* . Nast reperts deal with the sex-hinnlegic
type, or the s+okilK''l3tolegie type .a.otiariam. 2ne thier+ey
interacrlon, xx-sdcUq-histoloqie type, reawins to be studied .
http://legacy.library.ucsf.edu/tid/dsk94c00/pdf
. aGPIfR W4D
In Anrii of 1982 the Ner York State ptpattmeot of Health
initiated a latqe stidy nf the tpldaefolary ot luq oen'i . t!w York
SGt., with appmximstely 10 .000 oses of Wnq caneri reprsted every
}rar to its tumr registry, ptovided an e>mellerc setting for a stufy
of this natore . The pmject wes intaided to be emprelx•naive, that
is . to intiode both snokinq and nat-smdcLq long caneer cases . Stsdy
of the q[oup of sndcing cases wes limttad to the clinidl ard
patAolo9inl cfur .c.e.istics of lunq canner, .heress the asses>fne :t of
espnsure to passive sndciig ad other relevsnt em .im.rntal variables
w:re the mein study variables in the non-s:rqking The ruay
design also d1iaC for a population based mse,rtdrd emtrol groop
(this gM'P wil l be descihed Iater in full dereil l . Lt is only clese
~ lattel qn .xps - sm-aiokinq cases and their wtteapordvnt
Mtdrd ceetrols - that will be used to assess the effect of
eW:sure to paesive srokinq on t,rye risks of lJry caKer . 1Te
-30