Table 2 Univariate and multivariate analysis of the association between demographic and cancer characteristics and treatment by surgery

Age

≤70

630

89.6 %

73

10.4 %

<0.0001

1

1

>70

273

60.9 %

175

39.1 %

0.18 (0.13–0.25)

0.28 (0.19–0.41)

Stage

I-II

295

99.3 %

2

0.7 %

<0.0001

125.59 (30.5–516.35)

153.42 (35.67–659.9)

III

448

80.7 %

107

19.3 %

3.56 (2.56–4.97)

4.46 (2.97–6.72)

IV

128

54.0 %

109

46.0 %

1

1

Unkown

32

51.6 %

30

48.4 %

0.91 (0.52–1.6)

3.69 (1.33–10.25)

Adjuvant treatment

yes

677

84.3 %

126

15.7 %

<0.0001

2.94 (2.17–3.85)

2.51 (1.58–3.97)

no

226

64.9 %

122

31.5 %

1

1

Histology

<0.0001

Epithelial

856

82.8 %

178

17.2 %

1

1

Other

46

97.9 %

1

2.1 %

9.56 (1.31–69.81)

8.4 (1.05–67.44)

No histology

1

1.4 %

69

98.6 %

0.003 (0.001–0.02)

0.01 (0.14–0.79)

Grade

<0.0001

1

73

90.1 %

8

9.9 %

(0.4595*)

1

1

2

763

97.7 %

18

2.3 %

0.99 (0.41–2.39)

1.94 (0.72–5.28)

3

198

86.5 %

31

13.5 %

0.70 (0.31–1.59)

1.63 (0.63–4.19)

Unkown

469

71.1 %

191

28.9 %

0.27 (0.13–0.57)

0.82 (0.35–1.96)

Treatment location

Private

543

83,4 %

108

16.6 %

0.0001

1.37 (0.99–1.89)

2.00 (1.30–3.08)

Public Univ.

283

78,6 %

77

21.4 %

(0.0015*)

1

1

Public non-Univ.

57

67,9 %

27

32.1 %

0.57 (0.34–0.97)

0.65 (0.31–1.34)

Unkown

20

35,7 %

36

64.3 %

0.15 (0.08–0.28)

0.33 (0.14–0.79)

Period of diagnosis

≤2002

348

78.6 %

95

21.4 %

0.4751

2003–2007

292

80.2 %

72

19.8 %

≥2008

263

76.5 %

81

23.5 %

Area of residence

Rural

132

79.5 %

34

20.5 %

0.7184

Urban

771

78.3 %

214

21.7 %