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2<br />
fYIDWlOfAGIC =1f5 .<br />
-5-<br />
Conttouersul reP .u'ts on len9 m+cer tsWs snony narsokers<br />
have rot been dixvaa9in9 enou9h to dississ cne nyPothesis that<br />
passive sedting - also tnmed lnwlunruy ssYdrq or sea :dery<br />
Wdkinq - i,t ausally related to luq M-r' LI Jamxry of 1981,<br />
the British Medal Jounal pblished the first pqr .laticn stvdy<br />
. 8izayum repor*ed :1"r<br />
sPet3ficelly addn+si'9 tlus iawe (25)<br />
fi-dings of a 14 year old prospctiae stF .dY %Auch I"°olaed a follwrW<br />
for 91,560 soa-smaking malcTSed Japatese %acmm• rkro hwIlred aad se`^ccy<br />
four msss of Unq canar• had develocad in this 9ra¢o for Mhic4 the<br />
tw6asdl aWCinq history had been colle•tM itdePdrlently . aoften<br />
earr_ed to hsavy saduKS 11r20 oiq .retvs/deyl s0owed a hi9lws risk<br />
for lunq eancer thae +ms+ serrld en nar-s .okats IstaMatdired risk<br />
ratio . 2 .081 . RirtieIDOre, a statisrically siqalfiaust doee-tespo:ue<br />
relat_w .shiP was fosrl : the relative ruk for ni.es of +-s-+ ca or<br />
smkers of 1-19 ciqarettes/day .as 1 .6 : the relative risk for heavy<br />
2<br />
srokers 1>•201 s.. 2 .08 (NUReI-extension X test ') .299 ; P, tuo tails<br />
- .00091 . 7fie tred rass also otwtved .hen h•s^wd
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