TABLE 2.
Comparison of perioperative parameters between the uniportal and three‐port groups
| Variables | Uniportal group (n = 80) | Three‐port group (n = 66) | χ2 | p‐value |
|---|---|---|---|---|
| Intraoperative blood loss (ml) | 58.44 ± 45.775 | 98.03 ± 143.540 | −2.329 | 0.035 |
| Postoperative hospital stay (day) | 5.58 ± 2.540 | 7.21 ± 4.663 | −2.694 | 0.008 |
| Operation time (main) | 143.54 ± 70.378 | 185.47 ± 75.979 | −0.944 | 0.347 |
| Postoperative thoracic drainage (ml) | 250.89 ± 100.524 | 321.14 ± 197.805 | −2.773 | 0.006 |
| Chest tube duration (day) | 4.14 ± 2.453 | 5.09 ± 2.491 | −2.321 | 0.022 |
| Total number of lymph nodes dissected | 16.10 ± 8.377 | 14.47 ± 7.506 | 1.226 | 0.222 |
| Total number of lymph node stations dissected | 5.35 ± 5.774 | 4.30 ± 1.823 | 1.415 | 0.159 |
| 24 h postoperative pain NRS score | 3.83 ± 0.839 | 4.52 ± 0.769 | −5.136 | <0.001 |
| 72 h postoperative pain NRS score | 2.70 ± 0.624 | 3.20 ± 0.775 | −4.304 | <0.001 |
Note: Continuous variables are shown as mean ± standard deviation and categorical variables as number (%).
Statistically significant (p < 0.05).
Abbreviation: NRS, numerical rating score.