Table 1 Sample distribution as whole and by pneumology centers
Whole group (n = 169) | San Filippo Neri | San Giovanni-Addolorata | Policlinico Umberto I | San Giovanni Battista | p | |
|---|---|---|---|---|---|---|
Age (mean ± SD) | 74(± 8) | 73(± 6) | 74(± 10) | 77(± 7) | 72(± 6) | ns |
Male (%) | 72.8 | 74.3 | 74.0 | 50.0 | 84.8 | ns |
BMI (mean ± SD) | 27.3(± 4.8) | 28.2(± 4.9) | 26.6(± 5.2) | 26.8(± 4.1) | 28.5(± 4.0) | ns |
Current smokers (%) | 32.9 | 31.4 | 34.7 | 25 | 36.4 | ns |
PaO2 mmHg (mean ± SD) | 69.3(± 11.7) | 71.6(± 13.6) | 69.6(± 12.1) | 66.8(± 8.9) | 67.3(± 10.5) | ns |
FEV1 % pred. (mean ± SD) | 56.3(± 20.1) | 65.7(± 21.4) | 53.2(± 19.8) | 50.4(± 15.4) | 57.7(± 19.8) | 0.01 |
FEV1/FVC % (mean ± SD) | 54.6(± 14.5) | 58.2(± 12.1) | 55.9(± 12.7) | 52.1(± 21.2) | 49.8(± 14.7) | ns |
COPD exacerbations (mean ± SD) | 1.83(± 1.27) | 1.02(± 1.3) | 2.32(± 1.1) | 1.37(± 1.1) | 1.87(± 1.2) | < 0.001 |
Charlson Index (mean ± SD) | 4.88(± 2.07) | 3.62(± 1.8) | 5.72(± 2.2) | 5.33(± 1.7) | 4.0(± 1.2) | < 0.001 |
Cancer % | 13.6 | 5.7 | 22.1 | 12.5 | 3.0 | ns |
Lung cancer % | 5.9 | 2.9 | 10.4 | 3.0 | 0 | ns |