Patterns and trends in sarcoidosis: an epidemiological perspective

Area of Science:

• Pulmonary Medicine
• Immunology
• Epidemiology

Background:

• Sarcoidosis is a multisystem inflammatory disease with increasing global incidence and prevalence.
• Epidemiological patterns, including geographic variations and demographic disparities, are critical for understanding sarcoidosis burden.
• Shifting trends in age of diagnosis and sex distribution necessitate updated clinical perspectives.

Purpose of the Study:

• To review current global trends in sarcoidosis incidence, prevalence, and burden.
• To analyze variations in sarcoidosis phenotypes based on race, age, gender, and geography.
• To discuss historical and recent trends in sarcoidosis morbidity, co-morbidity, and mortality.

Main Methods:

• Literature review of epidemiological studies on sarcoidosis.
• Analysis of demographic data, including race, age, and gender.
• Examination of geographic variations in disease occurrence.
• Review of trends in clinical presentation, morbidity, and mortality.

Main Results:

• Worldwide increase in sarcoidosis incidence and prevalence.
• Highest incidence in Nordic countries, lowest in Asia.
• Disproportionately high incidence and prevalence in Black females in the United States.
• Increasing age at diagnosis (average >50 years) and rising incidence in older adults (>65 years).
• Historical female predominance shifting towards increasing incidence in males.

Conclusions:

• Sarcoidosis epidemiology is dynamic, with significant demographic and geographic variations.
• Evolving trends in age and sex distribution require updated clinical awareness and management strategies.
• Further research into environmental, genetic, and social determinants is crucial for addressing the growing global burden of sarcoidosis.