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ets exposure, lung cancer - Legacy Tobacco Documents Library

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p . .ive ssnoking e}sic is Ckinss w.msa'<br />

lad. In addidoo to ever-smokers (S), therc re staokin` at botae (H), workytaca (iN') .<br />

were xIlosr who lud eohabitins rslsuves or both (HW') bad X.Rs oaly mtrSinally<br />

asnokinY in their presence at home (H) .<br />

or tDosr da.i.)y exposed at tbeir workplau<br />

for a auraber of years (W) . In Fg . I three<br />

tn u.-seetin t cirtJ cs La v e b .ea dra wa to<br />

0kovra sevctt possibie catcj orics aad one a- s+'I'' ""*'*"'<br />

4ol .ited circle (N) representinj those who<br />

lu .d aever beea ezposed to any of thcse<br />

stIular aourtet . Passive erposure ls de~<br />

aotez3 by the shaded area . and includes<br />

sidutrcam smoke hom lSOme or workplace<br />

To set wizether this qtulitativa method<br />

of usessmeat wou7d duc irninau higher<br />

risk Foups, all patienu and controls we•<br />

re fined into tac :, af these i d4fferent<br />

smoke <strong>exposure</strong> atejories and the odds<br />

ratios were caJculated (Table II) . It t8osr<br />

wiraing none (h1 represeot the standard<br />

witt a relative risk (RR) of 1-D0, smokers<br />

with no other source of ezposvre (S) or<br />

triu]tiple sources (SH, S' .' . 3HV,') had RR.s<br />

ranting from .2 .Sb to 5 .45, wheress nonamokers<br />

who were only esposed to pusi•<br />

Iva : saakad<br />

Passive axpoiure at vork place<br />

t4 1 • smult t+rrot,uV meso .ia .<br />

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