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. 2015 May 13;10:925–937. doi: 10.2147/COPD.S82064

Table 5.

Characteristics of the prevalent cohort: GOLD A/B and GOLD C/D

GOLD category A/B GOLD category C/D
Sample size, n (%) 32,723 (66.4) 16,563 (33.6)
Age at point prevalence, mean (SD) 69.9 (11.2) 70.5 (10.3)
Sex, n (%)
 Male 16,725 (51.1) 8,417 (50.8)
 Female 15,998 (48.9) 8,146 (49.2)
Age at diagnosis, mean (SD) 64.3 (11.0) 63.7 (10.4)
Time since diagnosis (months), mean (SD) 72.5 (62.0) 87.1 (70.5)
Comorbidities, n (%)
 Myocardial infarction 2,620 (8.0) 1,507 (9.1)
 Diabetes 6,227 (19.0) 3,348 (20.2)
 Hypertension 11,361 (34.7) 5,633 (34.0)
 Osteoporosis 3,430 (10.5) 2,266 (13.7)
 Anxiety 564 (1.7) 437 (2.6)
 Depression 902 (2.8) 550 (3.3)
Smoking history, n (%)
 Unknown 4,643 (14.2) 1,779 (10.7)
 Current smoker 8,852 (27.1) 4,698 (28.4)
 Never smoked 3,176 (9.7) 1,138 (6.9)
 Ex-smoker 16,052 (49.1) 8,948 (54.0)

Abbreviations: GOLD, Global Initiative for Chronic Obstructive Lung Disease; GOLD A, low symptoms, low risk; GOLD B, high symptoms, low risk; GOLD C, low symptoms, high risk; GOLD D, high symptoms, high risk; n, number of patients; SD, standard deviation.