TABLE 1.
Characteristics of all participants in the study
| Parameters | Experimental group (n = 133) | Control group (n = 118) |
|---|---|---|
| Age (years; mean ± SD) | 56.4 ± 13.3 | 55.1 ± 10.9 |
| Males (n) | 82 | 73 |
| Females (n) | 51 | 45 |
| Chronic periodontitis | ||
| Mild (n) | 32 | 28 |
| Moderate (n) | 56 | 48 |
| Severe (n) | 45 | 42 |
| Lung cancer (total) | 78 | 67 |
| Wedge resection (n) | 15 | 12 |
| Segmentectomy (n) | 22 | 20 |
| Sleeve resection (n) | 18 | 18 |
| Lobectomy (n) | 23 | 17 |
| Esophageal cancer (total) | 55 | 51 |
| Cervical anastomosis (n) | 13 | 11 |
| Above aortic arch (n) | 15 | 16 |
| Below aortic arch (n) | 27 | 24 |
| Initial PFT (mean ± SD) | ||
| FVC (% pred) | 101.4 ± 16.2 | 102.0 ± 15.8 |
| FEV1 (% pred) | 102.6 ± 20.8 | 102.7 ± 18.5 |
| FEV1/FVC > 80%, n (%) | 98 (100%) | 87 (100%) |
| DL co (% pred) | 97.2.0 ± 17.1 | 96.4 ± 16.7 |
| DL co > 80% pred, n (%) | 98 (100%) | 87 (100%) |
| Smoking (n) | 47 | 39 |
| Charlson comorbidity score, n (%) | ||
| Score 0–1 | 75 (56.4%) | 65(55.1%) |
| Score 2 | 58 (43.6%) | 53 (44.9%) |
| Score > 2 | 0 | 0 |
| Rarely visited dentist, n (%) | 124 (93.2%) | 109 (92.4%) |
| Drain tube (days) mean ± SD | 4.9 ± 2.1 | 5.0 ± 2. 0 |
| Days in hospital (mean ± SD) | 20.9 ± 7.8 | 21.5 ± 6.3 |
Note: Every parameter with mean ± SD had no significant difference between the groups by t‐test (p > 0.05). Every parameter with n (%) had no significant difference between the groups by X 2 test (p > 0.05).