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. 2017 Oct 31;72(1):7–12. doi: 10.1136/jech-2017-209811

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Hazard risks for incident dementia by diverse social relationship engagement score. The scores are calculated by adding the number of selected social relationship variables in which respondents engaged. The five social relationship variables are selected according to model 3: married, contact with friends, group participation, work engagement and social support exchanges with family. All covariates (age, gender, education, household income, Geriatric Depression Scale, subjective cognitive complaints, instrumental activities of daily living, stroke, diabetes, daily walking time and hobbies) are adjusted.