Therapeutic play-based guidance for children with pneumonia: Impact on treatment compliance, anxiety, and fear

Figure 4 Comparative pulmonary function evaluation. A: Forced expiratory volume levels across the research and control groups; B: Vital capacity levels across groups; C: Maximal voluntary ventilation levels in both cohorts; D: Peak expiratory flow levels across the research and control groups. ^aP < 0.05, ^bP < 0.01 vs baseline; ^cP < 0.05 vs control. FEV: Forced expiratory volume; VC: Vital capacity; MVV: Maximal voluntary ventilation; PEF: Peak expiratory flow.