TABLE II.

Baseline (Prior to Treatment) Aerobic and Anaerobic Bacterial Burdens^*

	Phase I			Phase II
	10% PCA (N = 11)	IPA Alone (N = 11)	P Value	17% PCA (N = 12)	IPA Alone (N = 12)	P Value
Aerobic cultures
Log CFUs	1.93 ± 0.64	2.01 ± 0.53	0.766	1.44 ± 0.80	1.28 ± 0.71	0.368
Anaerobic cultures
Log CFUs	1.68 ± 0.72	1.84 ± 0.53	0.448	1.55 ± 0.72	1.57 ± 0.66	0.913

^*The values are given as the mean and standard deviation. PCA = protocatechuic acid, IPA = isopropyl alcohol, and CFU = colony-forming unit.