Table 1.

Characteristics of the study population and dementia incidence rate per 1,000 person-years with 95% confidence intervals

			Dementia incidence rate per 1,000 person-years
Variable	Person-years	Cases with dementia	Rate	95% Confidence interval
Time since T2D diagnosis
Up to 1 year	15,913	816	51.28	47.88	54.92
Up to 2 years	10,672	408	38.23	34.70	42.13
Up to 3 years	8,966	352	39.26	35.37	43.58
Up to 4 years	7,335	270	36.81	32.67	41.47
Up to 5 years	5,713	246	43.06	38.00	48.79
Up to 6 years	4,216	194	46.01	39.97	52.96
Up to 7 years	2,815	153	54.35	46.39	63.69
Up to 8 years	1,574	95	60.35	49.36	73.79
More than 8 years	407	24	58.91	39.48	87.89
Diabetes severity at T2D incidence
Less severe cases	11,407	323	28.32	25.39	31.58
more severe	46,206	2,235	48.37	46.41	50.42
Sex
Man	22,568	883	39.13	36.63	41.79
Woman	35,044	1,675	47.80	45.56	50.14
Age group at T2D incidence
65–84	53,500	2,054	38.39	36.77	40.09
85+	4,112	504	122.56	112.31	133.74
Treatment groups
No ADM	40,772	1,864	45.72	43.69	47.84
Insulin	1,071	83	77.47	62.47	96.07
Non-insulin ADM	15,044	577	38.35	35.35	41.61
Mixed ADM	725	34	46.88	33.50	65.61
Hypertensive diseases
No	3,129	126	40.27	33.82	47.95
Yes	54,484	2,432	44.64	42.90	46.45
Depression
No	39,047	1,444	36.98	35.12	38.94
Yes	18,566	1,114	60.00	56.58	63.63
Cerebrovascular diseases
No	38,850	1,192	30.68	28.99	32.47
Yes	18,763	1,366	72.80	69.04	76.77
Ischemic heart diseases
No	26,453	953	36.03	33.81	38.39
Yes	31,160	1,605	51.51	49.05	54.09
Atrial fibrillation and flutter
No	43,528	1,615	37.10	35.34	38.96
Yes	14,085	943	66.95	62.81	71.36
Obesity
No	35,852	1,742	48.59	46.36	50.93
Yes	21,761	816	37.50	35.01	40.16
Disorders of lipoprotein metabolism
No	17,761	880	49.55	46.38	52.93
Yes	39,852	1,678	42.11	40.14	44.17
Total	57,613	2,558	44.40	42.71	46.15