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Table 1 Sociodemographic and clinical characteristics of patients

From: Negative impact of chronic obstructive pulmonary disease on the health-related quality of life of patients. Results of the EPIDEPOC study

Characteristic (no. of patients)  
Total no. of patients 10,711
Age (years) * (8665) 64.1 ± 9.7 (40; 98)
Age groups (8862)  
   40–54 years 963 (10.9)
   55–64 years 2,249 (25.4)
   65–74 years 3,669 (41.4)
   >75 years 1,981 (22.4)
Sex (man) (10620) 8,030 (75.6)
Residence population (10341)  
   <10,000 inhabitants 3,022 (29.2)
   10,000–100,000 3,449 (33.4)
   >100,000 3,870 (37.4)
Educational level (9018)  
   No studies 1,852 (20.5)
   Primary 5,111 (56.7)
   Secondary 1,582 (17.5)
   University 473 (5.2)
Smoking (10649)  
   Never 2,468 (23.2)
   Ex-smoker 6,153 (57.8)
   Active smoker 2,028 (19.0)
FEV 1 (9963) 35.9 ± 10.0 (4;80)
COPD Severity (9963)  
   Mild 3,634 (35.5)
   Moderate 5,471 (53,4)
   Severe 1,146 (11.2)
Visits to E.R. * (9505) 1.4 ± 1.9 (0; 12)
No. of hospital admissions * (8670) 0.5 ± 0.9 (0; 11)
Oxygen therapy (10007) 1351 (13.5)
Associated comorbidity  
   Hypertension (9876) 4,706 (47.7)
   Hypercholesterolemia 3,995 (41.3)
   Diabetes (9453) 1,598 (16.9)
   Heart disease (9390) 1,770 (18,8)
   Ulcer (9425) 1,637 (17.4)
   Depression (9333) 1,196 (12,8)
   Anxiety (9397) 2,084 (19.5)
  1. Value expressed as frequencies (percentages)
  2. * Value expressed as mean ± standard deviation (minimum; maximum).