Table 1 An overview of the basic characteristics in the population in 2012 and 2017

Study population, n

20,889

35,212

 Age (mean ± SD)

81.9 ± 6.5

82.7 ± 6.6

 < 0.001

 Females^a, n (%)

12,801 (61.3%)

21,746 (61.8%)

0.254

 Multi-dispensed drugs, n (%)

10,590 (50.7%)

22,564 (64.1%)

 < 0.001

 Baseline MMSE-score^b (mean ± SD)

21.5 ± 4.9

21.5 ± 4.7

0.755

Type of major neurocognitive disorder, n (%)

 Early and late onset Alzheimer’s disease

6,915 (33.1%)

12,252 (34.8%)

 < 0.001

 Vascular dementia

3,506 (16.8%)

6,325 (18.0%)

 < 0.001

 Mixed Alzheimer’s disease and vascular dementia

3,728 (17.8%)

6,470 (18.4%)

0.117

 Dementia with Lewy bodies

392 (1.9%)

605 (1.7%)

0.170

 Parkinson’s disease dementia

291 (1.4%)

444 (1.3%)

0.183

 Frontotemporal dementia

247 (1.2%)

445 (1.3%)

0.399

 Unspecified

5,356 (25.6%)

7,796 (22.1%)

 < 0.001

 Other dementia type

454 (2.2%)

875 (2.5%)

0.019