Table 6. Prevalence of virulence genes among various groups of different biofilm formation ability.
| Virulence | Percentage of biofilm formation ability | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| genes |
Strong (n = 4), % |
Moderate (n = 38), % |
Weak (n = 53), % |
Total (n = 95), % |
Absent (n = 113), % |
Pearson Chi-square |
p-value | ||
| fimH | 4 (100) | 37 (97.4) | 49 (92.5) | 90 (94.7) | 101 (89.4) | 1.97a | 0.16 | ||
| pap | 2 (50) | 35 (92.1) | 44 (83.0) | 81 (85.3) | 84 (74.3) | 3.76b | 0.05 | ||
| sfa | 0 | 1 (2.6) | 6 (11.3) | 7 (7.4) | 18 (15.9) | 3.58c | 0.06 | ||
| afa | 0 | 2 (5.3) | 3 (5.7) | 5 (5.3) | 11 (9.7) | 1.45d | 0.23 | ||
Notes.
P-values were calculated using the Pearson Chi-squared test. P-values ≤ 0.05 are indicated in bold.
a
0 cells (.0%) have expected count less than 5. The minimum expected count is 7.76.
b
0 cells (.0%) have expected count less than 5. The minimum expected count is 19.64.
c
0 cells (.0%) have expected count less than 5. The minimum expected count is 11.42.
d
0 cells (.0%) have expected count less than 5. The minimum expected count is 7.31.