Table 2 Univariate and multivariate Cox analyses of achieving CSR in MG patients
Univariate analysis | Multivariate analysis | |||||
|---|---|---|---|---|---|---|
HR | 95% CI | P value | HR | 95% CI | P value | |
Age at the time of surgery (years) | 0.974 | 0.964–0.985 | 0.000 | 0.971 | 0.953–0.990 | 0.003 |
Sex | 0.858 | |||||
Male | – | – | – | |||
Female | 1.031 | 0.738–1.441 | ||||
Onset age of MG | 0.000 | 0.895 | ||||
< 50 years | – | – | – | – | ||
≥ 50 years | 0.511 | 0.356–0.734 | 1.042 | 0.562–1.935 | ||
Preoperative course of MG | 0.014 | 0.000 | ||||
≤ 12 months | – | – | – | – | ||
> 12 months | 0.619 | 0.421–0.909 | 0.474 | 0.317–0.708 | ||
Thymoma | 0.025 | 0.014 | ||||
Without thymoma | – | – | – | – | ||
With thymoma | 0.629 | 0.420–0.943 | 0.592 | 0.389–0.900 | ||
Dosage of pyridostigmine bromide(mg/d) | 0.998 | 0.997–1.000 | 0.030 | 0.998 | 0.997–1.000 | 0.064 |
Surgical procedure | 0.536 | |||||
VATS | – | – | ||||
Sternotomy | 0.860 | 0.535–1.385 | ||||
Osserman type | 0.352 | |||||
I + IIa | – | – | ||||
IIb + III + IV | 0.853 | 0.610–1.192 | ||||