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Table 4 Association analysis of the impact of different factors on worm condition in the second experiment.

From: Diversity and specificity in the interaction between Caenorhabditis elegans and the pathogen Serratia marcescens

Factor

Test

χ 2

d.f.

P

Single factor effects

Bacteria

LRT

10.31

2

0.0058

Worm strain

LRT

32.80

6

< 0.0001

Worm genotype

LRT

30.46

2

< 0.0001

Factor effects in consideration of one of the others (in brackets)

Bacteria (Worm strain)

CMH

4.34

1

0.0372

Bacteria (Worm genotype)

CMH

4.41

1

0.0358

Worm strain (Bacteria)

CMH

29.21

3

< 0.0001

Worm strain (Worm genotype)

CMH

0.93

3

0.8193

Worm genotype (Bacteria)

CMH

28.37

1

< 0.0001

  1. The associations were assessed with the likelihood ratio test (LRT) or the Cochran-Mantel-Haenszel (CMH) test. Bold probabilities are significant after Dunn-Sidák correction.