A low socioeconomic level multiplies by three the risk of suffering from dementia before the age of 65. The data is from a study carried out by researchers at the Huazhong University of Science and Technology (China) Early dementia refers to cases of dementia that are diagnosed in patients under 65 years of age.

In Spain, although there is no state registry, it is estimated that between 600,000 and one million people would suffer from dementia, which between 10 and 15% would be early-onset.