Table 2. Factors correlated with the operation time and blood loss.
| Factors | Operation time (min) | Blood loss (g) | |
|---|---|---|---|
| Institutions | A | 176 ± 41 | 32 ± 35 |
| B | 178 ± 86 p = 0.93 | 5 ± 9 p = 0.0060 | |
| Gender | Female | 155 ± 34 | 20 ± 28 |
| Male | 194 ± 75 p = 0.063 | 21 ± 33 p = 0.94 | |
| Numbers of skin incision | 1 | 183 ± 49 | 26 ± 27 |
| 2 | 156 ± 38 | 14 ± 21 | |
| 3* | 234 ± 108 p = 0.022 | 31 ± 56 p = 0.42 | |
| (2 vs. 3; p = 0.02) | |||
| Thymectomy | CR | 253 ± 133 | 21 ± 23 |
| TT | 174 ± 41 | 17 ± 23 | |
| PT | 132 ± 41 p = 0.010 | 41 ± 60 p = 0.28 | |
| (CR vs. TT; p = 0.038) | |||
| (CR vs. PT; p = 0.0089) | |||
| BMI | p = 0.24 | p = 0.19 | |
| Max diameter | p = 0.023 (r = 0.377) | p = 0.20 | |
| Weight of resected sample | p = 2.0 × 10−5 (r = 0.670) | p = 0.55 | |
| Blood loss | p = 0.13 | - | |
| Age | p = 0.76 | p = 0.15 | |
*including a case with thoracotomy. PT: partial thymectomy; TT: total or subtotal thymectomy; CR: total or subtotal thymectomy with combined resection of the surrounding organs or tissues; BMI: body mass index