Baseline characteristics |
Sex (no (%) male) | 174 (97.8%) | 154 (97.5%) | 0.864 |
Age (years) | 66.5 (7.9) | 65.6 (8.5) | 0.304 |
BMI (kg/m2) | 27.8 (3.9) | 27 (4.1) | 0.076 |
Years of evolution of COPD | 12.2 (9) | 13.9 (8.4) | 0.079 |
Severity of COPD, n (%) |
II (FEV1 35%–49%) | 90 (50.6%) | 57 (36.1%) | 0.008 |
III (FEV1 <35%) | 88 (49.4%) | 101 (63.9%) | |
Pack years | 53.1 (31.3) | 57.1 (29.1) | 0.222 |
Coexisting chronic conditions, n (%) |
0 | 55 (30.9%) | 47 (29.7%) | 0.396 |
1 | 61 (34.3%) | 43 (27.2%) | |
2 | 29 (16.3%) | 34 (21.5%) | |
3 or more | 33 (18.5%) | 34 (21.5%) | |
Hospital admission |
No | 141 (79.2%) | 92 (58.2%) | <0.001 |
Yes | 37 (20.8%) | 66 (41.8%) | |
Spirometric values |
FVC, ml | 2254.2 (675.7) | 2186.8 (597.8) | 0.336 |
FVC, % | 54.5 (13.9) | 52.6 (12.8) | 0.184 |
FEV1, ml | 1047.9 (298) | 981.6 (271.6) | 0.034 |
%FEV1 over predicted | 34.2 (8.0) | 31.8 (8.0) | 0.006 |
FEV1/FVC, % | 65.4 (13.8) | 62.9 (13.8) | 0.095 |
Quality of life scores |
SGRQ Symptoms | 44.8 (20.1) | 52.2 (19.6) | 0.001 |
SGRQ Activity | 59.2 (22) | 66.8 (18.9) | 0.001 |
SGRQ Impacts | 35.5 (18.3) | 42.4 (16.5) | <0.001 |
SGRQ Total | 44.2 (17.9) | 51.4 (15.6) | <0.001 |
PCS12 | 39.5 (9.7) | 36.7 (8.3) | 0.006 |
MCS12 | 50.5 (12.2) | 48.6 (12.7) | 0.168 |
Quality of life scores at the end of follow up |
SGRQ Symptoms | 34.04 (18.64) | 46.63 (18.91) | <0.001 |
SGRQ Activity | 59.94 (19.98) | 67.95 (18.57) | <0.001 |
SGRQ Impacts | 29.90 (18.35) | 38.25 (18.40) | <0.001 |
SGRQ Total | 39.16 (16.81) | 48.45 (16.09) | <0.001 |
PCS12 | 40.32 (9.26) | 36.73 (9.12) | 0.001 |
MCS12 | 51.06 (12.11) | 50.16 (11.83) | 0.502 |