Table 2.

Odds of ALS based on logistic regression, Denmark, 1982–2013.

	Men			Women
Metal	Occupationally Exposed to the Metal (yes/no)	aOR (95% CI)	Mutually Adjusted aOR (95% CI)	Occupationally Exposed to the Metal (yes/no)	aOR (95% CI)	Mutually Adjusted aOR (95% CI)
No Lag
Chromium	34,425/67,253	1.06 (0.93, 1.21)	1.01 (0.79, 1.30)	7089/61,066	1.01 (0.70, 1.18)	0.93 (0.59, 1.46)
Iron	27,087/74,591	1.07 (0.93, 1.24)	1.11 (0.68, 1.82)	4884/63,271	0.91 (0.66, 1.24)	0.79 (0.37, 1.65)
Nickel	29,489/72,189	1.06 (0.92, 1.22)	0.95 (0.62, 1.46)	6076/62,079	0.97 (0.74, 1.28)	1.24 (0.73, 2.12)
5-Year Lag
Chromium	33,342/68,336	1.07 (0.93, 1.23)	1.02 (0.79, 1.31)	6785/61,370	0.91 (0.70, 1.19)	0.88 (0.55, 1.41)
Iron	26,221/75,457	1.08 (0.94, 1.25)	1.14 (0.70, 1.88)	4680/63,475	1.00 (0.69, 1.44)	0.82 (0.39, 1.76)
Nickel	28,558/73,120	1.07 (0.93, 1.23)	0.93 (0.60, 1.45)	5835/62,320	1.00 (0.76, 1.32)	1.29 (0.75, 2.19)
10-Year Lag
Chromium	31,608/70,070	1.06 (0.92, 1.21)	0.95 (0.73, 1.25)	6299/61,856	0.97 (0.74, 1.27)	0.97 (0.60, 1.56)
Iron	24,875/76,803	1.09 (0.94, 1.26)	1.23 (0.73, 2.05)	4384/63,771	0.97 (0.70, 1.33)	0.81 (0.37, 1.75)
Nickel	27,124/74,554	1.07 (0.93, 1.24)	0.92 (0.59, 1.44)	5494/62,661	1.03 (0.77, 1.36)	1.24 (0.71, 2.16)
>50% Probability of Exposure
No lag
Chromium	5293/96,385	0.93 (0.69, 1.26)	0.87 (0.63, 1.20)	574/67,581	0.53 (0.17, 1.66)	0.59 (0.18, 1.96)
Iron	23,994/77,684	1.07 (0.92, 1.24)	1.10 (0.94, 1.29)	3816/64,339	0.84 (0.58, 1.20)	0.89 (0.61, 1.30)
5-Year lag
Chromium	4856/96,822	0.95 (0.70, 1.29)	1.12 (0.95, 1.31)	521/67,634	0.59 (0.19, 1.84)	0.92 (0.63, 1.35)
Iron	23,222/78,456	1.09 (0.94, 1.26)	0.87 (0.62, 1.21)	3656/64,499	0.87 (0.61, 1.26)	0.63 (0.19, 2.09)
10-Year lag
Chromium	4175/97,503	0.98 (0.71, 1.36)	1.11 (0.94, 1.30)	446/67,709	0.69 (0.22, 2.14)	0.94 (0.64, 1.38)
Iron	22,041/79,637	1.09 (0.93, 1.26)	0.90 (0.64, 1.28)	3433/64,722	0.90 (0.62, 1.31)	0.73 (0.22, 2.42)

All models are adjusted for age, residence at birth, and socioeconomic status.