Table 2.

Demographic and clinical characteristics of patients

Characteristic	M/n	SD/%
Age (M, SD)	61.18	8.53; 36–80a
Sex (n, %)
Female	116	52.7
Male	104	47.3
Education years (M, SD)	10.38	2.83
Education level (n, %)
Low	71	32.3
Medium	128	58.2
High	21	9.5
Partner (n, %)
Yes	163	74.1
No	57	25.9
Employed (n, %), n=218
Yes	37	17.0
No	181	83.0
Computer use (n, %)
Never	42	19.1
Sometimes	60	27.3
Frequent	118	53.6
Chronic oxygen (n, %)
Yes	58	26.4
No	162	73.6
Inpatient PR (n, %)
Yes	145	65.9
No	75	34.1
GOLD-stage (n, %)
I – mild	1	0.5
II – moderate	29	13.2
III – severe	91	41.4
IV – very severe	99	45.0
Comorbidity (n, %), n=205
Diabetes	18	8.8
Heart	81	39.5
Lung	25	12.2
Muscular-skeletal	44	21.5
Neurologicb	27	13.2
DART (M, SD), n=211	70.38	14.19
Number of exacerbations (M, SD), n=200	4.49	3.61
Number of hospitalizations (M, SD), n=200	1.66	1.95
FEV1 (L); % predicted (M, SD)	1.05; 38.25	0.48; 15.29
BMI (M, SD)	26.20	5.86
PaO2 (kPa) (M, SD)
Capillary, n=87	8.43	1.16
Arterial, n=132	8.89	1.28
Wmax (W); % predicted (M, SD), n=218	39.36; 29.04	23.49; 15.28
6MWDT (meters) (M, SD)	382.64	102.28
SGRQ total score (M, SD), n=219	65.51	11.55

Notes: Unless stated otherwise n=220;

^aminimum–maximum;

^bincluding CVA, lacunar infarct, subarachnoid hematoma, TIA, subdural hematoma.

Abbreviations: 6MWDT, six-minute walking distance test; BMI, body mass index; CVA, cerebrovascular accident; DART, Dutch Adult Reading Test; FEV₁, forced expiratory volume in 1 second; GOLD, Global Initiative for Chronic Obstructive Lung Disease; kPa, kilopascal; PaO₂, partial oxygen pressure in the blood; PR, pulmonary rehabilitation; SGRQ, St George’s Respiratory Questionnaire; TIA, transient ischemic attack.