Table 2

Treatment effect size estimates and impact on disability weights for chronic obstructive pulmonary disease (COPD) and asthma in WHO sub-Saharan African sub-region AfrE and South East Asian sub-region SearD

Intervention	Effect size	Change in value, and data source
Intervention	Effect size	Disability weights	Mortality
COPD
Smoking cessation	0.08	0.01⁴⁰	−0.15⁴¹
Flu vaccine	−0.39	−0.05⁴²	−0.12⁴³
Bronchodilator (for COPD stage II)	1.83	0.24⁴⁴	0⁴⁵
Bronchodilator + corticosteroid (COPD stage III and IV)	1.22	0.16⁴⁶	−0.25^{47 48}
Severe exacerbation treatment	−0.42	−0.05⁵⁰	−0.06^{49 51}
Oxygen therapy	−0.87	−0.11⁵²	−0.50⁵³
Asthma
Placebo (asthma)	0.05	0.01^24-26	N/A
Low dose inhaled corticosteroids	0.76	0.1^{24 25}	N/A
Medium dose inhaled corticosteroids	0.95	0.12^{24 26}	N/A
Low dose inhaled corticosteroids + long acting β agonists	1.22	0.16^{24 26}	N/A
Inhaled corticosteroids + leukotriene receptor agonists	1.17	0.15^{24 26 54}	N/A

N/A = Not applicable