Table 2.

Phenotypic properties of S. saprophyticus strains.

	Lipolytic activity				Hydrophobicity			Collagen adherence
	Total	Weak	High	ssp +	Total	Weak	High	Total	Weak	High	sdrI +
ATCC 15305	-	-	-	-			+	-			-
7108	+	-	+	+			+	+		+	+
clinical isolates (n = 236)	66.5%	84.1%	15.9%	89.2%	75%	42.7%	57.3%	19.9%	25.6%	74.4%	14.9%
animal isolates (n = 15)	46.7%	100%	0%	100%	100%	20%	80%	6.7%	100%	0%	0%

Lipolytic activity was measured on tributyrin agar plates: weak activity: halo > 1 mm, high activity: halo > 3 mm. For measurement of hydrophobicity the hydrophobicity index (HPBI) was calculated from the distribution of the bacteria between an aqueous and an organic solvent phase: weak hydrophobe: HPBI > 10%, high hydrophobe: HPBI > 40%, Adherence to collagen was determined using immobilized collagen type I. The bound bacteria were stained and the optical density was measured: weak adherence: OD > 0.15, high adherence: OD > 0.25.