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Table 1 The number of positive bacterial cultures obtained from rinse samples from biopsy channels of gastroscopes and colonoscopes and from swab samples obtained from automated endoscope reprocessors used for the decontamination of gastroscopes and colonoscopes

From: Surveillance cultures of samples obtained from biopsy channels and automated endoscope reprocessors after high-level disinfection of gastrointestinal endoscopes

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
  1. BC, biopsy channel; AER, automated endoscope reprocessor.
  2. 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).
  3. * 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).