Table 9 Correlations between changes in 6MWD after esophagectomy and other parameters
Parameters | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
Standardized partial regression coefficient | P value | Standardized partial regression coefficient | P value | |
Preoperative parameters | ||||
 Body mass index | −0.056 | 0.760 | ND | ND |
 %VC | −0.327 | 0.068 | −0.573 (n = 23) | 0.077 |
 %FEV1 | −0.302 | 0.093 | 0.369 (n = 23) | 0.273 |
 6MWD | 0.153 | 0.403 | ND | ND |
Hand grip strength | ||||
 Right | 0.273 | 0.130 | ND | ND |
 Left | 0.254 | 0.162 | ND | ND |
Isometric knee extensor muscle strength | ||||
 Right (n = 29) | 0.028 | 0.885 | ND | ND |
 Left (n = 29) | −0.101 | 0.601 | ND | ND |
 CAT (n = 29) | 0.220 | 0.251 | ND | ND |
SF-36 component | ||||
 Physical functioning (n = 27) | −0.186 | 0.353 | ND | ND |
 Role physical (n = 27) | −0.008 | 0.968 | ND | ND |
 Bodily pain (n = 27) | 0.283 | 0.153 | ND | ND |
 General health (n = 27) | 0.049 | 0.809 | ND | ND |
 Social functioning (n = 27) | −0.217 | 0.276 | ND | ND |
 Vitality (n = 27) | 0.210 | 0.293 | ND | ND |
 Role emotional (n = 27) | 0.028 | 0.891 | ND | ND |
 Mental health (n = 26) | −0.145 | 0.480 | ND | ND |
 PCS (n = 24) | 0.437 | 0.033* | 0.488 (n = 23) | 0.027* |
 MCS (n = 24) | −0.073 | 0.734 | ND | ND |
 RCS (n = 24) | 0.115 | 0.593 | ND | ND |
 With-without COPD | 0.241 | 0.184 | ND | ND |
 With-without chemo-radio therapy | −0.103 | 0.575 | ND | ND |
Intraoperative parameters | ||||
 Blood loss during surgery | 0.145 | 0.428 | ND | ND |
 Operation time | 0.145 | 0.430 | ND | ND |
Postoperative parameters | ||||
 Postoperative hospital stays | 0.046 | 0.802 | ND | ND |
Changes in hand grip strength | ||||
 Right (n = 31) | 0.153 | 0.412 | ND | ND |
 Left (n = 31) | 0.143 | 0.442 | ND | ND |
Changes in isometric knee extensor muscle strength | ||||
 Right (n = 29) | 0.045 | 0.815 | ND | ND |
 Left (n = 29) | 0.089 | 0.646 | ND | ND |
 Changes in CAT scores (n = 23) | −0.219 | 0.315 | ND | ND |