Table 4.

Odds ratio (OR) with 95% confidence interval (CI) of ALS risk according to leisure activities and other lifestyle factors.

Factor	Cases (y/n)	Controls (y/n)	OR a	OR b	(95% CI)
Hunting	4/91	6/129	0.95	1.05	(0.27–4.09)
Fishing	20/75	37/98	0.71	0.60	(0.29–1.24)
Using lead	16/79	32/103	0.65	0.57	(0.27–1.22)
Using lead in fishermen only	16/4	32/5	0.62	0.86	(0.15–4.75)
Painting	6/89	13/122	0.63	0.70	(0.25–1.98)
Use of oil paints	2/93	8/127	0.34	0.39	(0.08–1.96)
Use of oil paints in painters only	2/4	8/5	0.31	0.43	(0.04–4.90)
Model-making	7/88	8/127	1.26	1.39	(0.47–4.15)
Gardening	42/53	65/70	0.85	0.95	(0.55–1.64)
Any use of pesticides?	20/75	28/107	1.02	1.06	(0.55–2.05)
Using pesticides for gardening?	16/79	21/114	1.10	1.15	(0.56–2.39)
Using herbicides for gardening?	16/79	13/122	1.90	1.95	(0.88–4.36)
Using fungicides for gardening?	7/88	12/123	0.82	0.93	(0.35–2.51)
Photograph darkroom printing?	5/90	24/111	0.26	0.24	(0.09–0.70)
Play Sports	38/57	63/72	0.76	0.77	(0.41–1.42)
Competitive sports	10/85	22/113	0.60	0.50	(0.22–1.17)
Soccer	14/81	21/114	0.94	0.75	(0.33–1.72)
Competitive soccer	6/89	6/129	1.45	1.19	(0.35–4.02)
Volleyball	5/90	11/124	0.63	0.59	(0.19–1.87)
Competitive volleyball	1/94	4/131	0.35	0.28	(0.03–2.64)
Cycling	5/90	7/128	1.02	1.00	(0.29–3.44)
Competitive cycling	1/94	5/131	0.35	0.31	(0.03–2.94)
Swimming	5/90	7/128	1.02	1.12	(0.31–4.06)
Competitive swimming	1/94	1/134	1.43	1.61	(0.09–27.33)
Skiing	5/90	7/128	1.02	1.48	(0.42–5.13)
Competitive skiing	0/95	0/135	-	-
Athletics	7/88	16/119	0.59	0.66	(0.25–1.74)
Competitive athletics	0/95	6/129	-	-
Tennis	4/94	7/128	0.80	0.96	(0.26–3.53)
Competitive tennis	1/94	0/135	-	-

^a Crude model; ^b Model adjusted by sex, age, and educational attainment.