Table 4 Univariate analysis and multivariate analysis of the prognostic factors on OS in patients with PR

Gender

Male

328

1

0.671

1

0.235

Female

64

1.07 (0.79–1.45)

1.21 (0.89–1.64)

Age(years)

<58

199

1

0.065

1

0.719

≥ 58

193

1.23 (0.61–1.32)

1.04 (0.82–1.32)

KPS

80

184

1

0.000

1

0.000

90

208

0.34 (0.27–0.43)

0.32 (0.25–0.41)

T

1

35

1

0.052

1

0.581

2

159

1.12 (0.99–1.26)

1.04 (0.90–1.20)

3

90

4

108

N

0

40

1

0.015

1

0.074

1

29

1.18 (1.03–1.34)

1.24 (0.98–1.59)

2

193

3

130

TNM

I

19

1

0.013

1

0.082

II

27

1.12 (1.04–1.41)

1.04 (0.99–1.65)

IIIA

131

IIIB

215

PCI

No

53

1

0.000

1

0.001

Yes

339

0.54 (0.40–0.74)

0.56 (0.41–0.79)