Table 3.

Comparison of colony-forming units between the three groups (n=30 in each group) at all three locations

Location and rinse	Mean±SD	F	P
Doctor’s chest area
CHX	23.2±2.4	745.627	<0.001
BA	49.8±3.9
Water	79.1±8.5
Patient’s chest area
CHX	80.10±4.11	225.169	<0.001
BA	170±3.65
Water	298.83±11.65
Assistant’s chest area
CHX	12.06±1.81	6543.55	<0.001
BA	20.06±4.61
Water	34.13±5.35

Statistically significant at P<0.05. CHX: Chlorhexidine; BA: Boric acid; SD: Standard deviation