Table 4. Number of patients by percentage groups of probability of pneumonia aspiration.

Software		p
Groups by % probability of pneumonia	Number of patients
0–19%	32 (61.7%)
20–49%	5 (9.5%)
50–79%	3 (5.7%)	<0.001
80–100%	12 (23.1%)
Total	52 (100.0%)