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SGRQ scores by patient-reported health.*,†,‡.
Notes: *Score range: 0 (perfect health) to 100 (maximum impairment). †18 respondents with incomplete or missing data excluded. ‡Interquartile range is represented by a filled box. The bar represents median value; X represents mean. Whiskers represent minimum and maximum observation, accounting for outliers (filled circles).
Abbreviations: SGRQ, St. George’s Respiratory Questionnaire.
