TABLE 5.
Distribution of taxonomic traits between hemolytic and nonhemolytic H. haemolyticus strains
| Trait | No. (%) of strains
|
PRa | Results of χ2 analysis (P valuec) | |
|---|---|---|---|---|
| Hemolytic (n = 33) | Nonhemolytic (n = 76) | |||
| Molecular-based traits | ||||
| Hemolysis | 33 (100) | 0 (0) | Referent | |
| MAb 7F3 | 0 (0)b | 13 (17.1) | 11.3 | 0.0114 |
| Traditional traits | ||||
| H2S production | 24 (72.7) | 51 (67.1) | 0.92 | 0.5605 |
| Gas production | 31 (93.9) | 65 (85.5) | 0.88 | 0.2131 |
| Indole production | 20 (60.6) | 48 (63.2) | 1.04 | 0.8005 |
| Urease activity | 28 (84.8) | 49 (64.5) | 0.76 | 0.0319 |
| ODC activity | 2 (6.1) | 6 (7.9) | 1.30 | 0.7358 |
| LOS gene virulence traits | ||||
| licA | 8 (24.2) | 38 (50.0) | 2.06 | 0.0124 |
| lic2A | 1 (3.0) | 16 (21.1) | 6.95 | 0.0172 |
| lgtC | 0 (0)b | 2 (2.6) | 1.74 | 0.3469 |
a
PR, prevalence ratio. Prevalence ratios were calculated for nonhemolytic strains by using the hemolytic strains as the referent group.
b
Logit, 0.5 was used instead of 0 for prevalence ratio and statistical calculations.
c
A P value of <0.05 is considered statistically significant.