Table 3 Univariate Cox Proportional Hazard Modelling.

From: Immune pathways and TP53 missense mutations are associated with longer survival in canine osteosarcoma

Variable

Group

Median survival time

Percent survival—1 year

Percent survival—2 years

HR

95% CI

p value

TP53 mutation status

Mut

296

47

12

0.21

0.08 to 0.58

0.002

WT/NULL

95

14

0

Tumor location—Humerus

Yes

114

12.5

0

4.05

1.51 to 10.84

0.005

No

372

50

13

Pre-treatment peripheral blood monocytes (>or< 0.4 × 103 cells/µl)

High

216

20

0

2.12

0.87 to 8.14

0.091

Low

309

50

14

Alkaline phosphatase levels (>or< 140 units/liter)

High

216

29

0

1.93

0.74 to 4.99

0.176

Normal

246

35

6

IHC CD3 staining

NA

NA

NA

NA

0.56

0.23 to 1.33

0.191

Age

NA

NA

NA

NA

1.13

0.93 to 1.36

0.224

Sex

Male

296

42

8

0.75

0.33 to 1.72

0.504

Female

142

33

8

Weight

NA

NA

NA

NA

1

0.97 to 1.04

0.846

IHC MAC387 staining

NA

NA

NA

NA

1.02

0.61 to 1.69

0.954

  1. Results from univariate COXPH regression analysis using six clinical and one genomic parameter. The factors with a p-value <0.2 were used for the stepwise multivariate model.