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Figure 3: Five important essential steps for the use of metered-dose inhaler followed by patients in the pre- and post-intervention phase (n = 100). Group A: Educational intervention: Demonstration of the technique of MDI administration by the investigator. Group B: Educational intervention: Pictorial leaflet with instructions shown to the patients. Group A: Preintervention versus postintervention (*P = 0.001, Chi-square test). Group B: Preintervention versus postintervention (*P = 0.027, Chi-square test). Preintervention: Group A versus Group B (P > 0.05, Chi-square test). Postintervention: Group A versus Group B (#P = 0.003, Chi-square test)

Figure 3: Five important essential steps for the use of metered-dose inhaler followed by patients in the pre- and post-intervention phase (<i>n</i> = 100). Group A: Educational intervention: Demonstration of the technique of MDI administration by the investigator. Group B: Educational intervention: Pictorial leaflet with instructions shown to the patients. Group A: Preintervention versus postintervention (*<i>P</i> = 0.001, Chi-square test). Group B: Preintervention versus postintervention (*<i>P</i> = 0.027, Chi-square test). Preintervention: Group A versus Group B (<i>P</i> > 0.05, Chi-square test). Postintervention: Group A versus Group B (#<i>P</i> = 0.003, Chi-square test)