Table I.

Predictors of Mouse (Mus m 1) Allergen Levels in Classrooms, Cafeterias, and Homes

		Mus m 1 - Settled Dust (μg/g)				Mus m 1 – Airborne Dust (ng/m3)
		Number	Median	25th to 75th percentile	P-value	Number	Median	25th to 75th percentile	P-value
CLASSROOM
	*Signs of mice
Fall	No	166	0.45	(0.15 – 1.95)	0.12	162	1.20	(0.54 – 2.83)	0.04
	Yes	21	2.22	(0.10 – 5.28)		20	3.51	(0.87 – 6.34)
Spring	No	162	1.21	(0.31 – 4.53)	0.002	153	2.68	(1.04 – 4.86)	0.007
	Yes	20	6.11	(2.14 – 9.15)		18	5.25	(3.00 – 11.75)
	†Basement present
	No	119a	1.38	(0.33 – 4.53)	0.67	116a	2.21	(0.77 – 4.16)	0.72
	Yes	253b	0.62	(0.16 – 3.81)		240b	1.78	(0.70 – 4.50)
SCHOOL CAFETERIA
	£Signs of mice
Fall	No	20	0.15	(0.01 – 5.67)	0.91	20	1.20	(0.51 – 5.59)	0.61
	Yes	7	0.05	(0.03 – 2.44)		8	1.35	(0.59 – 2.21)
Spring	No	17	0.21	(0.03 – 1.72)	0.005	14	1.21	(0.69 – 3.71)	0.50
	Yes	11	6.50	(1.07 – 15.15)		7	1.67	(0.97 – 20.54)
	†Basement present
	No	16a	0.31	(0.06 – 4.03)	0.92	14a	0.97	(0.47 – 1.68)	0.03
	Yes	39b	1.01	(0.02 – 5.35)		35b	1.83	(0.69 – 5.68)
HOME
	‡Signs of mice
	No	142	0.03	(0.01 – 0.23)	<0.001
	Yes	129	0.30	(0.07 – 1.28)
	‡€Detached home
	No	238	0.12	(0.02 – 0.48)	0.61
	Yes	33	0.06	(0.02 – 0.47)

^*Classroom inspection form filled out at the time of each seasonal sampling of classrooms

^†One school environment survey filled out per school;

^a9 schools,

^b20 schools

^£Cafeteria inspection form filled out at the time of each seasonal sampling of cafeterias

^‡One baseline questionnaire filled out per home; one settled dust sample collected during the year; no home airborne dust samples collected

^€Detached home (one-family house detached from any other house); Attached home (one-family home attached to one or more houses and buildings with ≥ 2 apartments).