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Table 1 Demographic and clinical characteristics of COPD patients at baseline

From: Validation and clinical interpretation of the St George’s respiratory questionnaire for COPD (SGRQ-C) after adaptation to Malaysian language and culture, in patients with COPD

 Outpatient (Stable Disease)n = 240
Age: mean Years (SD)69.40 (6.87) kg/m2
BMI: mean (SD)23.49 (4.35)
Ethnicity: % (n)
 Malay24.5 (60)
 Chinese44.2 (106)
 Tamil29.2 (69)
 Others2.08 (5)
Smoking Status: % (n)
 Current Smoker11.6 (28)
 Ex-Smoker77.9 (187)
 Non-Smoker10.4 (25)
Post-bronchodilator Spirometry: Mean (SD)
 FEV1/FVC51.72 (12.75)
 FEV1 (%)55.27 (14.84)
Mean (95% CI) SGRQ-CM scores at different disease stage: GOLD Classification (% Predicted FEV1)
 l (> 80%)41.89 (29.45–54.34)
 ll (50–79%)45.26 (41.32–49.19)
 lll (30–49%)53.52 (47.52–59.52)
 lV (<  30%)64.30 (56.72–71.87)
Mean (95% CI)SGRQ-CM scores at different disease stage: mMRC Dyspnea grade
 Grade 029.24 (25.9–32.58)
 Grade 132.46 (29–35.91)
 Grade 247.90 (42.2–53.57)
 Grade 357.77 (53.3–62.16)
 Grade 466.36 (60.8–71.85)
Health status instrument Score: mean (SD)
 CAT16.52 (6.85)
 EQ-5D-5 L UI0.62 (0.23)
 EQ-VAS59.24 (17.30)
 mMRC2.31 (1.31)
SGRQ-CM Scores: mean (SD)
 Symptom55.44 (19.98)
 Activity58.43 (18.78)
 Impact43 (20.71)
 Total Score49.93 (18.61)
  1. BMI Body mass index in kg/m2, COPD Chronic Obstructive Pulmonary Disease, CAT COPD assessment test, EQ-5D-5 L UI European Quality of life 5-Dimension 5-Level questionnaire Utility index score, EQ-VAS European Quality of life 5-Dimension 5-Level questionnaire Visual analogue score, FEV1 Forced expiratory volume in 1 s, FVC Forced vital capacity, GOLD Global Initiative for Chronic Obstructive Lung Disease, mMRC modified Medical Research Council dyspnea scale, SGRQ-CM St George’s Respiratory COPD specific Questionnaire Malaysian version, SD Standard deviation