Table 3.

Efficacy of a coloured skin antiseptic on the forehead applied for 2.5 min

Study facility and number of subjects	Sampling time after beginning of application	Mean pre-value of bacterial density	RF (mean and stdev) of reference treatment (10 min exposure)	RF (mean and stdev) of coloured skin antiseptic B (2.5 min exposure)	p-value
A (n = 20)	10 min/2.5 min	3.79 ± 0.54	2.50 ± 0.70	3.25 ± 0.50	< 0.001
	30 min		2.59 ± 0.69	2.96 ± 0.57	0.006
B (n = 20)	10 min/2.5 min	3.36 ± 0.81	1.94 ± 0.59	2.45 ± 0.81	0.007
	30 min		1.86 ± 0.74	2.43 ± 1.08	0.01
C (n = 20)	10 min/2.5 min	4.72 ± 0.60	1.26 ± 0.78	1.21 ± 0.64	0.60
	30 min		1.93 ± 1.18	2.09 ± 1.44	0.83
All (n = 60)	10 min/2.5 min	n.a.	1.90 ± 0.85	2.30 ± 1.07	< 0.001
	30 min		2.13 ± 0.94	2.49 ± 1.13	0.002