Table 5

ANOVA test and Post Hoc multiple comparisons of mean area fraction of mdm-2 immunopositivity in relation to different grades of MEC:

Descriptive statistics (mdm-2)


Grade

Number of fields (Records)

Mean Area Fraction

Standard Deviation


Grade I

8

32.16375

1.264538


Grade II

32

35.95156

7.165884


Grade III

24

42.77000

5.654459


ANOVA (mdm-2)


Sum of Squares

df

Mean Square

F

P Value


Mdm-2

Between Groups

952.76

2

476.38

12.427


Within Groups

2338.42

61

38.33

0.0001


Total

3291.18

63


Post Hoc (Tukey HSD)


Dependent Variable

(I) Groups

(J) Groups.

Mean Diff

P Value

Significance


Mdm-2 Mean Area Fraction

Grade I

Grade II

-3.787812

< 0.001

S*


Grade III

-10.606250

< 0.001

S


Grade II

Grade III

- 6.818438

> 0.05

NS


* The mean difference is significant at the 0.05 level

Abd-Elhamid and Elmalahy Diagnostic Pathology 2010 5:72   doi:10.1186/1746-1596-5-72

Open Data