TABLE 2

Patient characteristics

InterventionUsual care
Subjects10099
Clusters1718
Age years68.04±9.6465.78±9.61
Male45 (45.9)45 (45.4)
FEV1 % predicted60.6±17.660.5±20.1
GOLD stage#
 I (mild)9 (9.2)9 (9.0)
 II (moderate)61 (62.2)63 (63.6)
 III (severe)23 (23.5)18 (18.2)
 IV (very severe)5 (5.1)9 (9.1)
Education level
 Lower secondary or less70 (71.4)65 (65.6)
 Upper secondary18 (18.4)21 (21.2)
 College/university10 (10.2)8 (8.1)
Current smoker27 (27.6)32 (32.3)
Living alone44 (44.9)39 (39.4)
Contact with healthcare professional
 Nurse268195
 GP323263
 Physiotherapist414360
 Dietician633
Increase of complaints+248 (30.3)177 (22.3)
Hospital admissions§1311
Comorbidities
 Myocardial infarction9 (9.1)6 (6.1)
 Heart failure11 (11.1)4 (4.1)
 Cerebrovascular accident6 (6.1)3 (3.1)
 Diabetes5 (5.1)21 (21.1)

Data are presented as n, mean±sd or n (%). FEV1: forced expiratory volume in 1 s; GOLD: Global Initiative for Chronic Obstructive Lung Disease; GP: general practitioner. #: I (mild): FEV1 ≥80% pred; II (moderate): FEV1 ≥50% to <80% pred; III (severe): FEV1 ≥30% to <50% pred; IV (very severe): FEV1 <30% pred; : total counts of contacts during study period (intervention period of 6 weeks and 9-month follow-up); +: total counts of reported increase of complaints during study period (intervention period of 6 weeks and 9-month follow-up); §: total counts of reported hospital admissions during study period (intervention period of 6 weeks and 9-month follow-up).