Journal of Historical Research, Law and Policy 3115-7505 3 Serial Number 9 2025 03 28 Air Pollution Control Legislation and Respiratory Health: A Systematic Review and Meta-analysis Air Pollution Control Legislation and Respiratory Health: A Systematic Review and Meta-analysis 1 17 10.61838/jhrlp.92 EN Journal Article 2024 12 02 <p>Air pollution is one of the most significant environmental factors threatening public health, associated with an increased incidence of respiratory diseases and premature mortality. The present study aimed to evaluate the effect of air pollution control legislation on respiratory health. The international databases PubMed/Scopus, MEDLINE (Ovid), Cochrane Library, and Embase were searched using keywords aligned with the study objective as of September 2025. Two blinded, independent authors reviewed all articles. STATA/MP.v17 (College Station, Texas, USA) was used to perform the analyses. Fifteen eligible studies were included in the study after reviewing the title, abstract, and full text by independent and blinded researchers. An overall reduction in pollutants was estimated to be 20% (ES 0.20; 95% CI: 0.10-0.31). Meta-regression with a random-effects model revealed a significant inverse relationship (-0.0846, P = 0.032) between air pollution reduction and policy type. The impact of implementing pollution reduction laws on asthma was significant (HR: 0.86, 95% CI: 0.80-0.92). Strengthening legal frameworks, promoting evidence-based policy making, and enforcing regulations can help reduce emissions, thereby improving public health and reducing the burden of air pollution-related diseases.</p> https://jhrlp.com/index.php/jhrlp/article/download/92/91