Relation of dampness to sick building syndrome in Japanese public apartment houses

Table 7 Adjusted odds ratios of dampness index for SBS symptoms (n = 441)

	Eye		Nose		Skin		Throat and/or cough		General		All or any
	OR^a (95% CI)	P	OR^a (95% CI)	P	OR^a (95% CI)	P	OR^a (95% CI)	P	OR^a (95% CI)	P	OR^a (95% CI)	P
Dampness index
0–1(n = 63)	Reference^b		Reference		Reference		Reference		Reference^b		Reference
2 (n = 47)	Reference^b		2.60 (0.37–18.1)	0.335	1.37 (0.08–23.4)	0.826	1.50 (0.09–25.5)	0.777	Reference^b		3.60 (0.60–21.5)	0.161
3 (n = 49)	0.00^c	0.998	0.56 (0.05–6.75)	0.649	1.31 (0.08–22.1)	0.853	1.24 (0.07–20.8)	0.883	3.24 (0.50–20.7)	0.214	3.44 (0.61–19.3)	0.161
4 (n = 63)	1.62 (0.10–27.2)	0.734	2.93 (0.52–15.8)	0.211	2.16 (0.19–25.4)	0.538	4.83 (0.53–43.9)	0.162	2.60 (0.41–16.6)	0.312	6.91 (1.42–33.7)	0.017
5 (n = 55)	5.16 (0.50–53.6)	0.169	2.80 (0.52–15.0)	0.229	2.86 (0.27–30.3)	0.383	8.30 (0.96–71.6)	0.054	2.86 (0.43–18.9)	0.276	7.07 (1.44–34.7)	0.016
6 (n = 109)	17.2 (2.06–143.1)	0.008	3.04 (0.61–15.1)	0.174	4.53 (0.50–41.1)	0.179	9.11 (1.11–74.8)	0.040	5.48 (1.04–28.92)	0.045	9.64 (2.07–44.8)	0.004
7 (n = 39)	11.4 (1.11–118.9)	0.041	5.55 (1.00–30.7)	0.050	6.17 (0.59–64.9)	0.130	8.10 (0.87–75.8)	0.067	8.87 (1.35–58.3)	0.023	10.7 (2.06–55.5)	0.005
8 (n = 16)	35.8 (2.93–437.5)	0.005	16.6 (2.46–112.6)	0.004	28.8 (2.37–350.3)	0.008	57.5 (5.50–600.2)	<0.001	47.7 (6.27–361.1)	<0.001	38.0 (5.92–244.1)	<0.001
P for trend	<0.0001		0.003		0.005		<0.0001		<0.001		<0.0001

^aAdjusted for age (<30, 30–39, 40–49, 50–59, >60), gender, history of allergic diseases, type of tenure (municipal or prefuctural), population density (number of residents/room; its mean (0.49) was applied to missing values)
^bAs the group of 0–1 dampness index contained no subjects with nose and general symptoms, odds ratios were incalculable when only the group of 0–1 was applied to reference
^cConfidence interval incalculable

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