Table 1—

Patient characteristics

TotalChronic bronchitisGOLD IGOLD IIGOLD IIIGOLD IV
Patients192 (100)29 (15)34 (18)52 (27)41 (21)36 (19)
Age yrs64±6.463±5.966±5.664±6.463±7.464±6.2
Males145 (76)23 (79)25 (74)37 (71)33 (80)27 (75)
BMI kg·m−226.3±4.827.2±3.027.0±4.227.3±5.025.1±5.124.6±5.3
Pack-yrs of smoking52±2554±2247±2751±2856±2454±20
Regular drinkers91 (47)17 (59)17 (50)25 (48)21 (51)11 (31)
Drinks per week of regular drinkers5 (2–14)6 (2–17)4 (2–7)5 (2.5–10)5 (2–14)9.5 (3–14)
Retired or early retired145 (76)16 (55)27 (79)38 (73)31 (76)33 (92)
Unemployed20 (10)6 (21)3 (9)4 (8)5 (12)2 (6)
University entrance degree19 (10)3 (10)3 (9)7 (14)4 (10)2 (6)
  • Data are presented as n (%), mean±sd or median (interquartile range). GOLD: Global Initiative for Chronic Obstructive Lung Disease; BMI: body mass index.