Table 4.

Factors of dementia subgroup and sensitivity test by using Fine and Gray’s competing risk model

	Amphetamine‐related disorders	No competing risk in the model				Competing risk in the model
Sensitivity test	Dementia subgroup	Adjusted HR	95% CI	95% CI	P	Adjusted HR	95% CI	95% CI	P
Overall	Overall dementia	4.936	4.609	5.285	<0.001	5.034	4.701	5.391	<0.001
	AD	3.806	3.554	4.075	<0.001	3.882	3.621	4.157	<0.001
	VaD	2.460	2.297	2.634	<0.001	2.509	2.340	2.687	<0.001
	Other dementia	5.196	4.852	5.564	<0.001	5.301	4.949	5.678	<0.001
First 2 years excluded	Overall dementia	2.862	2.671	3.065	<0.001	2.918	2.725	3.128	<0.001
	AD	2.227	2.080	2.389	<0.001	2.271	2.122	2.439	<0.001
	VaD	1.580	1.476	1.692	<0.001	1.613	1.502	1.729	<0.001
	Other dementia	2.999	2.798	3.213	<0.001	3.055	2.851	3.270	<0.001
First 5 years excluded	Overall dementia	1.922	1.725	2.085	<0.001	1.960	1.833	2.099	<0.001
	AD	1.313	1.021	1.534	0.022	1.339	1.101	1.443	0.004
	VaD	1.100	0.862	1.259	0.267	1.128	0.953	1.080	0.136
	Other dementia	2.205	1.890	2.169	<0.001	2.065	1.928	1.212	<0.001

PYs, Person‐years; Adjusted HR, Adjusted Hazard ratio, Adjusted for the variables listed in Table 3.; CI, confidence interval; AD, Alzheimer dementia; VaD, vascular dementia.