Uptake and effectiveness of a tailor-made online lifestyle advice for Dementia Risk Reduction

INTERVENTION: This study is a cluster randomized controlled trial in which participating memory clinics (= 20) in the Netherlands will be randomized into a passive or active recruitment strategy. Memory clinics allocated to the passive recruitment strategy, do not invite individuals actively, but individuals are invited to participate in the Dementia Risk Reduction Online Lifestyle Program only by posters and leaflets that are placed in the waiting room of the memory clinic. Memory clinics allocated to the active recruitment strategy will invite potential participants face‐to‐face by the medical specialist of their parent to participate in the Dementia Risk Reduction Online Lifestyle Program, during the second consultation after receiving the diagnoses AD or VD, next to posters and leaflets that are placed in the waiting room of the memory clinic. All patients (and their caregivers) receive an envelope addressed to the adult children of patients, including a standard leaflet with information about the content of the study. Participants recruited via both recruitment strategies will receive the same Dementia Risk Reduction Online Lifestyle Program. CONDITION: Dementia, Vascular dementia, Alzheimer's disease, Life style, Risk reduction, Multiple health behaviors ; ; PRIMARY OUTCOME: The primary outcome is the uptake (e.g. the percentage of eligible people that signed the online informed consent form and completed baseline risk assessment). The total number of eligible people in each recruitment group (active versus passive) will be based on the number of new cases of AD or VD (dementia patients) in all memory clinics during the recruitment period, assuming an average of one child per dementia patient. Monthly, the number of eligible participants (e.g. new cases of AD and VD) will be monitored using the medical records of each memory clinic. SECONDARY OUTCOME: 1) The change in the dementia risk modification score. The dementia risk modification score is based on the LIBRA score, consisting of the following modifiable risk factors for dementia: alcohol consumption, coronary heart disease, physical inactivity, renal dysfunction, diabetes, high cholesterol, blood pressure, smoking, obesity, hypertension, Mediterranean diet, depression, social and cognitive activity ; ; ; 2) The change in the individual health behaviors over time (e.g. physical activity, diet, alcohol consumption, smoking behavior, cognitive activity and social activity) ; ; ; 3) Changes in beliefs and attitudes with regard to dementia risk reduction will be measured using the Motivation to Change Lifestyle and Health Behavior for Dementia Risk Reduction Scale (MCLHB‐DRR scale) ; ; ; 4) Percentage of participants that indicated that they have followed up the tailored computerized lifestyle advice, but also the percentage of participants that indicated that they have followed up the advice to consult their General Practitioner. INCLUSION CRITERIA: Middle‐aged adults with a parent who is recently diagnosed with Alzheimer's disease or Vascular dementia. ‐ Age between 40 and 60 years ‐ Able to use a computer