Table 1.
Category | BC No. (%) | AER No. (%) | p value |
---|---|---|---|
Gastroscope, n = 300 |
32 (10.7)* |
6 (2.0) |
<0.0001 |
Colonoscope, n = 120 |
25 (20.8)* |
1 (0.8) |
<0.0001 |
Total, n = 420 | 57 (13.6) | 7 (1.7) | <0.0001 |
BC, biopsy channel; AER, automated endoscope reprocessor.
Pearson chi-squared test showed that the number of positive bacterial cultures from the samples obtained from BCs was significantly higher than that from the samples obtained from the AERs (p < 0.0001).
* Fisher’s exact test showed a statistically significant difference between the number of positive bacterial cultures from samples obtained from the BCs of gastroscopes and those obtained from colonoscopes (p = 0.00585).