Table 1 Age, gender, smoking habits, symptoms and lung function values in 983 subjects according to different definitions of restrictive spirometry pattern (RSP) and true pulmonary restriction defined as TLC < LLN
Restrictive spirometric pattern (RSP) | True pulmonary restriction | ||||
|---|---|---|---|---|---|
FEV1/FVC ≥ LLN and FVC < LLN (RSPLLN) N = 33 (3.4%) | FEV1/FVC ≥ 0.7 and FVC < 80% (RSP0.7) N = 31 (3.2%) | FEV1/FVC ≥ 0.7 and FVC < 80% predilation (RSPpredil) N = 33 (3.4%) | TLC < LLN5 (Quanjer) N = 46 (4.7%) | TLC < LLN5 (Gothenburg) N = 53 (5.4%) | |
Males n = 500 (50.9%) | n = 19 (57.6%) | n = 17 (54.8%) | n = 18 (54.5%) | n = 39 (84.8%) | n = 28 (68.3%) |
BMI (kg/m2) | 29.3 (6.1) | 29.8 (6.5) | 29.2 (5.7) | 28.8 (5.2) | 28.6 (5.5) |
Age (yrs) | 57.0 (4.2) | 57.9 (4.2) | 56.8 (4.47) | 57.8 (4.5) | 56.9 (4.4) |
Ever-smokers n = 570 (58.0%) | n = 21 (63.6%) | n = 17 (54.8%) | n = 20 (60.6%) | n = 25 (50.0%) | n = 21 (51.2%) |
Never-smokers n = 417 (42.4%) | n = 12 (36.4%) | n = 14 (45.2%) | n = 13 (39.4%) | n = 25 (50.0%) | n = 20 (48.8%) |
FEV1 (% pred) | 76.1 (8.7) | 75.7 (8.8) | 78.8 (8.2) | 82.9 (17.1) | 84.4 (18.6) |
FVC (% pred) | 74.0 (6.6) | 73.3 (6.3) | 77.6 (7.3) | 80.5 (17.7) | 82.8 (19.2) |
TLCQUANJER (% pred) | 90.3 (7.7) | 90.7 (8.2) | 89.6 (7.4) | 74.6 (8.5) | 73.0 (8.6) |
TLCGOTHENBURG (% pred) | 84.9 (7.0) | 85.9 (7.8) | 84.1 (6.5) | 77.5 (5.6) | 77.8 (5.3) |
RV (% pred) | 99.2 (29.8) | 99.9 (30.9) | 100.4 (29.4) | 84.5 (26.0) | 82.6 (27.4) |
Asthma n = 93 (9.5%) | N = 3 (9.1%) | n = 2 (6.5%) | n = 3 (9.1%) | n = 4 (8.0%) | n = 4 (9.8%) |
MRC ≥ 2 n = 51(5.2%) | N = 5 (15.2%) | n = 5 (16.1%) | n = 5 (15.2%) | n = 4 (8.0%) | n = 5 (12.2%) |
Diabetes N = 165 (16.7%) | N = 8 (24.2%) | N = 7 (22.6%) | N = 7 (21.2%) | N = 11 (23.9%) | N = 11 (20.8%) |
Myocardial infarction N = 27 (2.8%) | N = 1 (3.1%) | N = 3 (10%) | N = 1 (3.0%) | N = 3 (6.7%) | N = 3 (5.7%) |