qHA study to discover factors that relate to lung disease byssinosis.Hɷ28 Mar 2006 22:02yes_bysno_bysdustracesexsmokeremplength%8.0g%8.0g%8.0g%8.0g%8.0g%8.0g%11.0gdustlabracelabsexlabsmokerlabemplengthlabNumber suffering from byssinosisNumber not suffering from byssinosisDustiness of workplace, 1 = high, 2 = medium, 3 = low1 = white, 2 = othere, 1 = high, 2 = medium, 3 = low1 = male, 2 = femalee, 1 = high, 2 = medium, 3 = low1 = yes, 2 = nomalee, 1 = high, 2 = medium, 3 = lowLength of employment, 1 = <10 years, 2 = 10-20 years, 3 = >20 years%JX]#K/z6-2!!^: ZM  -[/'T@emplengthlabl4w^c <10 years10-20 years>20 yearssmokerlababl4w^cyesno$sexlabababl4w^c malefemale$racelabbabl4w^c whiteother0dustlabbabl4w^c highmediumlow