Table 6.

Results from culture-based epidemiological studies of atopic eczema and psoriasis

Skin condition and reference	No. of patients/no. of positive cultures	% of cultures positive for:							Culture mediuma	Location	Description
		M. globosa	M. restricta	M. sympodialis	M. furfur	M. slooffiae	M. obtusa	M. dermatis
Atopic eczema
138	31/22	18	8	51	10	3	10		LNA	Canada	No. of CFU from cases of atopic eczema was significantly lower than that from healthy or pityriasis versicolor skin
344	60/31	16	22	32	21	3		6.5	LNA	South Korea	Trend in the severity of atopic eczema with Malassezia colonization was observed
277	124/69	28	3	46	4	7	30		LNA	Sweden	Mixed species were cultured in 11% of patients; healthy skin and seborrheic dermatitis skin were significantly more colonized than atopic eczema skin; M. globosa was significantly more common in atopic eczema skin
Psoriasis
353	110/69	45	11	11	38				LNA	Iran	9% of patients had mixed cultures (>2 species); significant differences in isolation rates from psoriatic skin and healthy skin on the head
138	28/19	58		31		11.5			LNA	Canada	No. of CFU in psoriasis skin was significantly lower than those for other Malassezia-associated dermatoses; Malassezia grew more commonly on scalp and face than on arms and legs

^aLNA, Leeming-Notman agar.