Table 4 Statistical results of comparisons of proportions of virulence genes and phylogenetic groups of isolates analyzed using MedCalc Software
Comparison groups | Chi square value | P value |
|---|---|---|
Pre-weaned kids vs nursing does stx1 | 13.803 | P = 0.0002 |
Pre-weaned kids vs nursing does stx2 | 3.160 | P = 0.0755 |
Pre-weaned kids vs nursing does eaeA | 18.394 | P < 0.0001 |
Pre-weaned kids vs nursing does hly | 2.813 | P = 0.0935 |
Kids 0DPW vs kids 1DPW Stx1 | 14.5 | P = 0.0001 |
Kids 0DPW vs kids 2DPW Stx1 | 11.5 | P = 0.0007 |
Kids 0DPW vs kids 7DPW Stx1 | 6.8 | P = 0.009 |
Kids 0DPW vs kids 1DPW hly | 15.2 | P = 0.0001 |
Kids 0DPW vs kids 2DPW hly | 24.5 | P < 0.0001 |
Kids 0DPW vs kids 7DPW hly | 21.0 | P < 0.0001 |
Preweaned and periweaning kids vs all adults hly | 28.1 | P < 0.0001 |
Preweaned and periweaning kids vs all adults STEC | 41.4 | P < 0.0001 |
Preweaned and periweaning kids vs all adults all virulence genes | 25.4 | P < 0.0001 |
Preweaned and periweaning kids vs all adults 2 or more virulence genes | 26.48 | P < 0.0001 |
Group D phylogenetic group (diarrhea (kids) vs healthy littermates) | 3.709 | P = 0.0541 |
Group D phylogenetic group (goat kids vs adults) | 27.480 | P < 0.0001 |
Group D phylogenetic group (pre-weaning kid vs weaning period) | 4.727 | P = 0.0297 |
Group B phylogenetic group (adults vs goat kids) | 20.860 | P < 0.0001 |