Caplans syndrome epidemiology and demographics
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The incidence of Caplan syndrome is 1 in 100,000 people but it is decreasing due to the reduction of exposure to coal, silica, and asbestos. Silica exposure has the most prevalence of Caplan syndrome.
Epidemiology and Demographics
- Caplan syndrome is very rare in the United States. Incidence is currently 1 in 100,000 people but is likely to fall as the coal mining industry declines.
- The prevalence of Caplan syndrome is estimated to be very low.
- Most recent study showed the prevalence of Caplan syndrome n Japan is 0.75% and in the USA it is 0.89%. No recent study on the prevalence in Europe.
case-fatality rate/Mortality rate
- Mortality rate in Caplan syndrome is very low except in association with black lung caused by coal worker pneumoconiosis.
- Aveerage age of first radiographic appearance of Caplan syndrome is 54 years. The age range is 41 to 64 years of age. 
- There is no racial predilection to Caplan syndrome.
- There is no study available on gender.
- "StatPearls". 2021. PMID 29763061. PMID: 29763061. Check
- Benedek, Thomas G. (1973). "Rheumatoid pneumoconiosis". The American Journal of Medicine. 55 (4): 515–524. doi:10.1016/0002-9343(73)90209-X. ISSN 0002-9343.
- Shaw, Megan; Collins, Bridget F.; Ho, Lawrence A.; Raghu, Ganesh (2015). "Rheumatoid arthritis-associated lung disease". European Respiratory Review. 24 (135): 1–16. doi:10.1183/09059180.00008014. ISSN 0905-9180.
- Lindars, D. C.; Davies, D. (1967). "Rheumatoid pneumoconiosis: A study in colliery populations in the East Midlands coalfield". Thorax. 22 (6): 525–532. doi:10.1136/thx.22.6.525. ISSN 0040-6376.
- Alaya, Zeineb; Braham, Mouna; Aissa, Sana; Kalboussi, Houda; Bouajina, Elyès (2018). "A case of Caplan syndrome in a recently diagnosed patient with silicosis: A case report". Radiology Case Reports. 13 (3): 663–666. doi:10.1016/j.radcr.2018.03.004. ISSN 1930-0433.
- "Rheumatoid Pneumoconiosis: A Comparative Study of Autopsy Cases between Japan and North America". The Annals of Occupational Hygiene. 2002. doi:10.1093/annhyg/46.suppl_1.265. ISSN 1475-3162.