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Table 1 ANOVA results of 19 variables contributing to Brucella vaccine protection efficacy

From: Meta-analysis of variables affecting mouse protection efficacy of whole organism Brucella vaccines and vaccine candidates

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Variables

Df

Sum Square

Mean Square

F value

P-value (>F)

Variables with statistically significant contribution to protection (P-value < 0.05)

1

CFU Reduction

1

4.32

4.32

58.66

1.574E-13

2

Pathogen challenge route

1

2.20

2.20

29.90

8.278E-08

3

Vaccine dose

1

1.77

1.77

24.09

1.369E-06

4

CFU in spleen

1

0.92

0.92

12.49

4.591E-04

5

Challenge Pathogen Strain

1

0.85

0.85

11.54

0.0008

6

Mouse strain

1

0.58

0.58

7.86

0.0053

7

Vaccine strain

1

0.41

0.41

5.56

0.0188

8

Vaccination route

1

0.41

0.41

5.54

0.0190

9

Challenge-killing Interval

1

0.38

0.38

5.19

0.0232

Variables without statistically significant contribution to protection (P-value > 0.05)

10

Vaccination Frequency

1

0.27

0.27

3.61

0.0581

11

Adjuvant

1

0.18

0.18

2.41

0.1215

12

Vaccination Challenge Interval

1

0.16

0.16

2.20

0.1385

13

Gene Mutation

1

0.12

0.12

1.68

0.1951

14

Mouse Age at Vaccination

1

0.07

0.07

0.97

0.3244

15

Sample Size

1

0.03

0.03

0.47

0.4928

16

Vaccine viability

1

0.02

0.02

0.34

0.5612

17

Antigen Overexpression

1

0.02

0.02

0.23

0.6299

18

Mouse Sex

1

0.01

0.01

0.10

0.7499

19

Challenge Dose

1

0.00

0.00

0.07

0.7988

  1. Note: Nine variables were found to play a significant role (P-value < 0.05), and 10 variables were found not. Df: degree of freedom.