心理社会的因子に着目した認知症予防のための介入研究—ポピュレーション戦略に基づく介入プログラム理論と中間アウトカム評価

Preventive intervention of senile dementia focusing on psychosocial factors : Intervention theory based on the population health approach and its evaluation of midterm outcomes

要旨：認知症予防プログラムの開発が求められている．我々はポピュレーション戦略に基づき心理社会面への介入を重視した「憩いのサロン」事業に取り組んでいる．本論の目的は，その介入理論仮説と開始8ヵ月後の中間アウトカムの評価結果を示すことである．対象は，憩いのサロンのボランティア40名と一般参加者33名である．ボランティアでは，介入前後でおしゃべり相手，人の役に立っている，参加者では，おしゃべり相手，何かに一緒に取り組む相手などの増加が見られた．また，双方とも情緒的・情報的各サポートの受領と提供が増えた者が約7割など，心理社会的因子で期待された変化の見られることが示された．

　The development of dementia prevention programs is in wide demand. We are currently working on the "Ikoi no Salon" (Recreational Salon) project, a dementia intervention study, which focuses on psychosocial factors and is based on the population health approach. This paper presents our hypotheses regarding intervention theory, together with the evaluation results of the midterm outcomes eight months after the beginning of the study. The participants are 40 volunteer staff members of the Recreational Salon and 33 salon users. The midterm outcomes showed an increase in positive awareness among both staff members and salon users. For staff members, results showed an increase in the number of companions (60.0% to 87.5%) and a sense of contributing to the well-being of others (57.9% to 82.5%). Among salon users, the outcomes show an increase in the number of companions (42.4% to 90.9%) and an increase in shared activities with friends (35.5% to 69.1%). The outcomes also show a 70% increase in the giving and receiving of emotional and informational support among all the participants. The evaluation suggests that the study is producing the anticipated positive psychosocial changes.