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Table 5 ANOVA test and Post Hoc multiple comparisons of mean area fraction of mdm-2 immunopositivity in relation to different grades of MEC:

From: Image cytometric analysis of p53 and mdm-2 expression in primary and recurrent mucoepidermoid carcinoma of parotid gland: immunohistochemical study

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
  1. * The mean difference is significant at the 0.05 level
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Diagnostic Pathology

ISSN: 1746-1596

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