Table 3 Univariate Cox regression analysis for relapse-free survival (RFS)

Gender, male/female

0.761 (0.416–1.393)

0.377

Age, < 66 / ≥66

1.171 (0.726–1.887)

0.517

 UtMt / Lt

1.076 (0.628–1.845)

0.789

 Ut / MtLt

0.648 (0.360–1.167)

0.148

 cT stage, T1–2 / T3

3.543 (2.151–5.838)

< 0.001

 cN stage, N0 / N1–2

0.301 (0.185–0.488)

< 0.001

 cM stage, M0 / M1(LYM)

0.274 (0.038–1.998)

0.202

 peakSUVmax, < 4.43 / ≥4.43

3.346 (1.929–5.805)

< 0.001

 hSULpeak, < 2.64 / ≥2.64

3.325 (1.896–5.834)

< 0.001

 TMTV, < 3.82 / ≥3.82

4.019 (2.313–6.982)

< 0.001

 wTLG, < 13.46 / ≥13.46

2.996 (1.786–5.024)

< 0.001

 pT stage, T1–2 / T3–4

0.262 (0.162–0.423)

< 0.001

 pN stage, N0–1 / N2–3

0.211 (0.127–0.350)

< 0.001

 pM stage, M0 / M1(LYM)

0.308 (0.096–0.987)

0.048