Personality and health locus of control among middle-aged and older adults living in a Japanese community.

[Speaker] Iwasa, Hajime:1,2
[Co-author] Yoshida, Yuko:2
1:Department of Public Health, Fukushima Medical University School of Medicine (Japan), 2:Tokyo Metropolitan Institute of Gerontology (Japan)

This study aimed to examine the relationship between personality and health locus of control (HLC) among middle-aged and older adults.
A total sample of 416 men and 416 women aged 40-79 years participated. The NEO five-factor inventory was administered to assess the "big five" personality traits: neuroticism, extraversion, openness, agreeableness, and conscientiousness. The Multidimensional HLC Scale (including three subscales: Internal HLC (IHLC), Powerful-others HLC (PHLC), and Chance HLC (CHLC)) was conducted to assess health belief.
In multiple regression analysis adjusted for gender, age, education, chronic diseases, and financial circumstance, extraversion were positively associated with IHLC (beta = 0.25) and PHLC (beta = 0.23). Agreeableness were negatively associated with CHLC (beta = -0.24). Conscientiousness were positively associated with IHLC (beta = 0.29).
Our results suggest that personality traits may predict health belief among middle-aged and older adults, and could be beneficial for developing health promotion strategies among community dwellers.
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