Time Trends and Regional Variation in Prevalence of Asthma and Associated Factors in Saudi Arabia: A Systematic Review and Meta-Analysis

<div>Asthma prevalence (95% confidence interval) over the years in Saudi Arabia.</div>

BioMed Research International

Figure 6: Time Trends and Regional Variation in Prevalence of Asthma and Associated Factors in Saudi Arabia: A Systematic Review and Meta-Analysis 