Table 2 Univariate and multivariate Cox regression analyses for overall survival and disease-free survival in esophageal squamous cell carcinoma

Gender (female)

0.832(0.290 ~ 2.387)

0.732

0.617(0.216 ~ 1.761)

0.367

BMI (< 20 kg/m²)

1.666(0.798 ~ 3.477)

0.174

1.732(0.860 ~ 3.488)

0.124

ypTNM stage (advanced)

2.708(1.276 ~ 5.746)

0.009

1.810(0.773 ~ 4.242)

0.172

2.622(1.284 ~ 5.354)

0.008

1.939(0.874 ~ 4.301)

0.104

Pathological partial response

3.142(1.333 ~ 7.408)

0.009

1.438(0.512 ~ 4.043)

0.490

3.127(1.342 ~ 7.289)

0.008

1.631(0.624 ~ 4.262)

0.318

Pre-nCRT SUVmax (≥ 12)

1.181(0.576 ~ 2.422)

0.650

1.291(0.650 ~ 2.565)

0.466

Post-nCRT SUVmax (≥ 3)

5.051(1.906 ~ 13.385)

0.001

3.665(1.308 ~ 10.270)

0.013

4.165(1.694 ~ 10.237)

0.002

3.417(1.327 ~ 8.794)

0.011

ΔSUV ratio (< 0.8)

3.748(1.128 ~ 12.454)

0.031

1.559(0.410 ~ 5.925)

0.514

2.399(0.837 ~ 6.878)

0.103