Farmer's lung epidemiology and demographics

Farmer’s lung disease is more prevalent in damper climates and after wet harvest season. It is more commonly observed in men as they are more exposed to the offending agent. Peak incidence of cases is from late winter to early spring.

• Farmer’s lung disease is more prevalent in damper climates, especially after wet harvest season.
• In USA, rates vary from 0.42% in Wisconsin to 3% in Wyoming.
• In Scotland- rates vary from 2.3%-8.6% in farmers of varying regions.^[1]

• If not properly diagnosed or recognized, with Farmer’s lung disease or antigen exposure, about 50% will be disabled with in 5 years, and about 10% will die.

• Patients of all age groups may develop Farmer’s lung disease.
• Farmer’s lung disease is observed to be less prevalent in children.

• There is no racial predilection to Farmer’s lung disease noted.

• Farmer’s lung disease is more prevalent in men as they are often exposed to the offending agent.
• Women and children have less observed prevalence rates.

• Farmer’s lung disease is more prevalent in damper climates.