Table 2. Comparison of toothbrush contamination with Pseudomonas aeruginosa among 4 study groups.
| Group | Pseudomonas | Total | p-value | ||
| Absent | Present | ||||
| Group I -Toothbrush with lids inside bathrooms with an attached toilet | Count | 9 | 0 | 9 | 0.006 |
| % | 100.00% | 0.00% | 100.00% | ||
| Group II-Toothbrush without lids inside bathrooms with an attached toilet | Count | 9 | 0 | 9 | |
| % | 100.00% | 0.00% | 100.00% | ||
| Group III-Toothbrush with lids outside bathrooms | Count | 5 | 4 | 9 | |
| % | 55.60% | 44.40% | 100.00% | ||
| Group IV- Toothbrush without lids outside bathrooms | Count | 4 | 5 | 9 | |
| % | 44.40% | 55.60% | 100.00% |