Question 2. How common is asthma in the Philippines?

From Chapter 1 of the Philippine Consensus Report on Asthma 2004 by the Philippine College of Chest Physicians.
This guideline starts below.

How common is asthma in the Philippines?

Answer

There are no available nationwide data published on asthma prevalence. However, the limited reports gathered showed a prevalence of 12% in children aged 13-14 years and 17-22% in older age groups.

Summary of Evidence

Three thousand two hundred and seven children in Metro Manila aged 13-14 years participated in the International Study of Asthma and Allergies in Children (ISAAC). Participants accomplished a 12-month prevalence of self-reported asthma symptoms from written questionnaires and from video questionnaires. The results showed that approximately 12% and 8% prevalence based on responses to the written questionnaires and to the video questionnaires respectively. In a subsequent study, 12.3% of the same population reported wheezing.

A local study estimating the prevalence of asthma and allergies in adults was completed in Malolos, Bulacan in 1998. One thousand five (1,005) adults (ages 18-44 years) were interviewed using a pre-tested questionnaire adapted from the European Community Health Survey (ECHRS) and the ISAAC. The study showed a prevalence of 17.2% for asthma and 49.9% for allergy among adults. Another study conducted at the Lung Center of the Philippines reported a prevalence of 22% in adults.

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