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Table 1 Survival data on age of dogs with osteosarcoma coded as binary data

From: Prognostic factors in canine appendicular osteosarcoma – a meta-analysis

Study (UVA/MVA)

N

Studied age categories (years)

MST (days)

HR (95 % CI)

p-value

Saam 2010 (UVA)

12

<=5

1414

0.49 (0.3-1.1)

0.08

 

53

>5

265

  

Phillips 2009 (UVA)

23

<5

1263

 

0.034

 

132

>5

293

  

Miller 2009 (UVA)

3

<6

 

(reference)

0.89

 

73

6-10

 

1.09 (0.21-5.68)

 
 

7

>10

 

1.14 (0.28-4.71)

 

Liptak 2006 (MVA)

20

Older*

 

2.06 (1.03-4.14)

0.042

Kent 2004 (UVA)

32

<mean age**

  

0.156

Spodnick 1992 (MVA)

162

7-10*** vs.

  

<0.01

  

<7 and >10

   
  1. UVA = univariate analysis; MVA = multivariate analysis; N = number; MST = median survival time; HR = hazard ration; reference = the reference group with which the others are compared.
  2. *MST for older dogs was significantly decreased (median age 8.3 years, range 4.5-11 years).
  3. **Only median age was mentioned in article (8.8 years, range 2.2-16.5 years)
  4. ***Longer survival time.
  5. * MST for older dogs was significantly decreased (median age 8.3 years, range 4.5-11).
  6. ** Median age 8.8 years, range 2.2–16.5.
  7. *** Longer ST.
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BMC Veterinary Research

ISSN: 1746-6148

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