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Table 4 Effect of a 5%, 10%, 15% and 20% per decade reduction in each risk factor on future dementia prevalence (2010–2050)

From: Proportion of dementia in Australia explained by common modifiable risk factors

  Dementia estimate
Reduction per decade 2010 2020 2030 2040 2050
  242,500 384,396 553,285 760,131 942,624
5% 242,500 (0.0%) 378,293 (1.6%) 535,831 (3.3%) 724,417 (4.9%) 884,021 (6.6%)
10% 242,500 (0.0%) 371,946 (3.3%) 517,987 (6.8%) 688,631 (10.4%) 826,632 (14.0%)
15% 242,500 (0.0%) 365,346 (5.2%) 499,850 (10.7%) 653,296 (16.4%) 771,870 (22.1%)
20% 242,500 (0.0%) 358,477 (7.2%) 481,528 (14.9%) 618,937 (22.8%) 720,965 (30.7%)