Table 2. Associations between personal factors, work environment, conditions and SBS (n=207)

Factor	Positive SBS	Negative SBS	P	PR (95% Cl)^**
Sex
Male	24 (51.1)	23 (48.9)	<0.01	0.68 (0.50-0.91)
Female	121 (75.6)	39 (24.4)	<0.01	0.68 (0.50-0.91)
Smoke^*
Yes	3 (37.5)	5 (62.5)	0.22	1.90 (0.61-5.97)
No	142(41.4)	57 (28.6)	0.22	1.90 (0.61-5.97)
Atopy
Yes	95 (80.5)	39 (43.8)	<0.01	1.43 (1.17-1.76)
No	50 (56.2)	23 (19.5)	<0.01	1.43 (1.17-1.76)
Varying room temperature
Yes	53 (84.1)	10 (15.9)	<0.01	1.32 (1.12-1.55)
No	92 (63.9)	52 (36.1)	<0.01	1.32 (1.12-1.55)
Overload of work^*
Yes	143 (71.1)	58 (28.9)	<0.05	2.13 (0.69-6.64)
No	2 (33.3)	4 (66.7)	<0.05	2.13 (0.69-6.64)

Fisher Exact
95% Con.ftdence Intervals