Differences and similarities in non-cystic fibrosis bronchiectasis between developing and affluent countries

Area of Science:

• Pulmonology
• Epidemiology

Background:

• Non-CF bronchiectasis is a significant cause of illness worldwide, particularly in developing countries and among indigenous populations.
• While prevalence declines in developed nations, it remains high in certain indigenous groups, highlighting a need for focused research.

Purpose of the Study:

• To emphasize the need for epidemiological studies to determine the incidence and prevalence of non-CF bronchiectasis in developing countries.
• To highlight the differences in etiology, nutritional status, exacerbation frequency, and disease severity between developing and affluent countries.

Main Methods:

• This study is a review and synthesis of existing data and literature on non-CF bronchiectasis.
• It identifies gaps in epidemiological data, particularly for developing nations.

Main Results:

• Prevalence is increasing in indigenous populations, even in affluent countries.
• Despite similarities in core characteristics, etiological factors and disease severity vary significantly between developing and developed regions.
• Diagnostic delays are common in both settings, albeit for different reasons.

Conclusions:

• Epidemiological data on non-CF bronchiectasis in developing countries are lacking and urgently required.
• Evidence-based management necessitates long-term studies.
• Multidisciplinary approaches are crucial for effective management and prevention, though resource limitations in developing countries pose a major challenge.