Fig. 6From: Subcutaneous immunotherapy with depigmented-polymerized allergen extracts: a systematic review and meta-analysisDPAEs versus placebo in all pollen seasons of original studies. Outcome: health-related quality of life (HRQL) measured with Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ). *Asthma classification: (0) Only intermittent asthma patients included; (1) Intermittent to mild persistent asthma patients included; (2) Intermittent to moderate persistent asthma patients included. **Rhinoconjunctivitis classification: (0) Any rhinoconjunctivitis severity included; (1) Moderate to severe rhinoconjunctivitis included. 95%CI: 95% confidence interval; m months, SD standard deviationBack to article page