Table 1.

Positive bacteriological cultures from Doppler probes before and after staff education

Culture	Before staff education (n = 50)	After staff education (n = 42)	χ2P-value
Skin flora only	5	2	0.44
Skin flora and coliforms	1	0	1
Diphtheroids and coagulase-negative staphylococci	1	0	1
Coagulase-negative staphylococci only	6	0	0.03
Total	13	2	0.009