The incidence and prevalence of<unk><unk>  varies depending on various factors like season, occupation etc.Hypersensitivity<unk>  usually affects patients in fourth to sixth decade of life.The mean age at diagnosis is 53 +/- 14 years.There is no racial predilection to<unk><unk> .<unk><unk>  affects men and women equally. Death due to<unk><unk>  is reported more in men.
Hypersensitivity pneumonitis epidemiology and demographics
Eosinophilic pneumonia epidemiology and demographics
Bronchiolitis epidemiology and demographics
Idiopathic interstitial pneumonia epidemiology and demographics
Bronchitis epidemiology and demographics
Idiopathic pulmonary fibrosis epidemiology and demographics
Cryptogenic organizing pneumonia epidemiology and demographics
Bronchiectasis epidemiology and demographics