Table 1. Comparison of baseline demographics between the two groups.
| Variables | NSS group (n=19) | SS group (n=20) | t/χ2 | P |
|---|---|---|---|---|
| Age (years) | 65.42 (7.80) | 67.75 (6.77) | 0.997 | 0.739 |
| Gender, n (%) | 0.292 | 0.589 | ||
| Male | 16 (84.2) | 18 (90.0) | ||
| Female | 3 (15.8) | 2 (10.0) | ||
| Hypertension | 7 | 9 | 0.268 | 0.605 |
| Diabetes | 2 | 2 | 0.003 | 0.957 |
| Preoperative neoadjuvant therapy | 4 | 5 | 0.086 | 0.770 |
| Length of the tumor (cm) | 3.48 (1.50) | 2.95 (1.30) | 1.173 | 0.343 |
| Tumor location | 0.233 | 0.890 | ||
| Upper thoracic | 1 | 1 | ||
| Middle thoracic | 9 | 11 | ||
| Lower thoracic | 9 | 8 |
NSS group, non-sternal suspension group; SS group, sternal suspension group.