Table 2.

General characteristics of study subjects

Classification		Lung disease patient group		Non-patients within family
		n	%	n	%
Gender
	Male	174	46.5	153	50.5
	Female	200	53.5	150	49.5
Age at investigation
	<=3	30	8.0	4	1.3
	4-8	108	28.9	36	11.9
	9-18	41	11.0	16	5.3
	19-65	174	46.5	211	69.6
	>65	21	5.6	7	2.3
	No information			29	9.6
Age when self-reported lung disease developed
	<=3	135	36.1
	4-8	36	9.6
	9-18	6	1.6
	19-65	158	42.2
	>65	24	6.4
	No information	15	4.0
Type of disinfectant
	PGH	33	8.8	34	11.2
	PHMG	286	76.5	252	83.2
	CMIT & MIT	27	7.2
	SDT	3	0.8	9	3.0
	No information	25	6.7	8	2.6
No. of different disinfectant brands used
	1	230	65.7	179	59.5
	2	89	25.4	90	29.9
	3	30	8.6	25	8.3
	No information	1	0.3	7	2.3
	Total	374	100	303	100

PHMG = polyhexamethylene guanidine phosphate; PGH = oligo(2-(2-ethoxy)ethoxyethyl guanidinium; CMIT = chloromethylisothiazohnone; MET = methyhsothiazohnone; SDT= Sodium Dichloro-S-Triazmetrione(Cas No. 2893-78-9)