Table 1.
Baseline patients characteristics
| Group A (n=56) | Group B (n=47) | p | |
|---|---|---|---|
| Age (years) MV±SD | 62±7 | 59±9 | 0.134 |
| Male gender N (%) | 49(88) | 41(87) | 0.968 |
| Smoking history N (%) | 50(89) | 44 (94) | 0.438 |
| Co-morbidities N (%) | 50(89) | 34(72) | 0.027 |
| Hypertension N (%) | 28(50) | 18(38) | 0.234 |
| Coronary disease N (%) | 11(20) | 9(19) | 0.950 |
| Heart failure N (%) | 4(7) | 1(2) | 0.238 |
| Diabetes mellitus N (%) | 7(13) | 4(8) | 0.514 |
| Chronic renal failure N (%) | 0(0) | 2(4) | 0.119 |
| COPD stage: I/II/III/IV N (%) | 10(18)/ 39(69)/ 6(11)/ 1(2) | 24(51)/ 22(47)/ 1(2)/ 0(0) | 0.002 |
| Basal spirometry: | |||
| FEV1 (mL) MV±SD | 1948±569 | 2509±741 | <0.001 |
| FEV1% pred. MV±SD | 65±14 | 79±18 | <0.001 |
| VC (mL) MV±SD | 3352±873 | 3731±1088 | 0.055 |
| VC% pred. MV±SD | 88±15 | 94±21 | 0.116 |
| Tiffneau index % MV±SD | 56±8 | 62±6 | <0.001 |
| FEF50% MV±SD | 29±14 | 44±24 | <0.001 |
| IC% MV±SD | 74±11 | 84±12 | <0.01 |
| FEF25% MV±SD | 27±18 | 42±24 | 0.001 |
| Pulmonary resection: | |||
| Pneumonectomy N (%) | 13(23) | 5(11) | 0.094 |
| Lobectomy N (%) | 43(77) | 42(89) | 0.094 |
| Total hospital stay (days) MV±SD | 36±19 | 25±12 | <0.001 |
| Preop.hospital stay (days) MV±SD | 21±12 | 9±6 | <0.001 |
| Postop.hospital stay (days) MV±SD | 16±9 | 16±8 | 0.571 |
| Total complications N (%) | 20(36) | 21(45) | 0.354 |
| Pulmonary complications N (%) | 17(30) | 20(43) | 0.199 |
| In-hospital mortality N (%) | 2(4) | 0(0) | 0.191 |
COPD = chronic obstructive pulmonary disease.