Table 3.
Lung Function and Periodontal Indexes in COPD Case and Control Groups
| Clinical Parameters | COPD Group (n=60) | Control Group (n=60) | P-value |
|---|---|---|---|
| Lung function (Mean±SD) | |||
| FEV1% of predicted | 61.0±19.9 | 94.6±7.6 | <0.0001* |
| FEV1/FVC | 0.53±0.11 | 0.77±0.04 | <0.0001* |
| Periodontal index (Mean±SD) | |||
| Number of remaining teeth | 23.8±5.2 | 26.0±3.6 | 0.03* |
| Probing depth (PD) (mm) | 3.29±0.55 | 3.20±0.57 | 0.51 |
| Clinical attachment level (CAL) (mm) | 5.15±1.04 | 4.93±0.77 | 0.35 |
| Bleeding index (BI) | 2.45±0.54 | 2.42±0.62 | 0.86 |
| Plaque index (PLI) | 2.39±0.64 | 1.98±0.51 | 0.02* |
| Alveolar bone loss | 1.73±0.56 | 1.68±0.52 | 0.72 |
| Severe site percentages | |||
| PD ≥ 5mm site percentages | 13.0±5.5 | 12.7±6.3 | 0.77 |
| CAL ≥ 5mm site percentages | 30.3±15.5 | 19.1±10.4 | 0.02* |
Notes: P value obtained from Student’s t-test. *P<0.05 statistically significant.
Abbreviations: COPD, chronic obstructive pulmonary disease; FEV1, forced expiratory volume in one second; FVC, forced vital capacity.