Prediction of 11-year incidence of psychophysically dependent status or death among community-dwelling younger elderlies: from an age-specified community-based cohort study (the NISSIN project).

Satoe Okabayashi; Takashi Kawamura; Hisashi Noma; Kenji Wakai; Masahiko Ando; Kazuyo Tsushita; Hideki Ohira; Shigekazu Ukawa; Akiko Tamakoshi

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Prediction of 11-year incidence of psychophysically dependent status or death among community-dwelling younger elderlies: from an age-specified community-based cohort study (the NISSIN project).

Author: Satoe OKABAYASHI ¹ ; Takashi KAWAMURA ² ; Hisashi NOMA ³ ; Kenji WAKAI ⁴ ; Masahiko ANDO ⁵ ; Kazuyo TSUSHITA ⁶ ; Hideki OHIRA ⁷ ; Shigekazu UKAWA ⁸ ; Akiko TAMAKOSHI ⁹
Author Information

1. Kyoto University Health Service, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan. okabayashi.satoe.8c@kyoto-u.ac.jp.
2. Kyoto University Health Service, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan.
3. Department of Data Science, The Institute of Statistical Mathematics, 10-3 Midori-cho, Tachikawa, Tokyo, 190-8562, Japan.
4. Department of Preventive Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
5. Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, 65, Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
6. Kagawa Nutrition University, 3-9-21 Chiyoda, Sakado city, Saitama, 350-0288, Japan.
7. Department of Psychology, Graduate School of Informatics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.
8. Research Unit of Advanced Interdisciplinary Care Science, Graduate School of Human Life Science, Osaka City University, 3-3-138, Sugimoto, Osaka, Sumiyoshi-ku, 558-8585, Japan.
9. Department of Public Health, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, North 15, West 7, Kita-ku, Sapporo, 060-8638, Japan.
Publication Type:Journal Article
Keywords: Aged; Cohort studies; Death; Forecasting; Nursing care
MeSH: Aged; Cohort Studies; Female; Geriatric Assessment/statistics & numerical data*; Humans; Independent Living/statistics & numerical data*; Japan; Male; Middle Aged; Nursing Homes/statistics & numerical data*; Risk Assessment; Risk Factors
From:Environmental Health and Preventive Medicine 2021;26(1):45-45
CountryJapan
Language:English
Abstract: BACKGROUND:Predicting adverse health events and implementing preventative measures are a necessary challenge. It is important for healthcare planners and policymakers to allocate the limited resource to high-risk persons. Prediction is also important for older individuals, their family members, and clinicians to prepare mentally and financially. The aim of this study is to develop a prediction model for within 11-year dependent status requiring long-term nursing care or death in older adults for each sex.
METHODS:We carried out age-specified cohort study of community dwellers in Nisshin City, Japan. The older adults aged 64 years who underwent medical check-up between 1996 and 2000 were included in the study. The primary outcome was the incidence of the psychophysically dependent status or death or by the end of the year of age 75 years. Univariable logistic regression analyses were performed to assess the associations between candidate predictors and the outcome. Using the variables with p-values less than 0.1, multivariable logistic regression analyses were then performed with backward stepwise elimination to determine the final predictors for the model.
RESULTS:Of the 1525 female participants at baseline, 105 had an incidence of the study outcome. The final prediction model consisted of 15 variables, and the c-statistics for predicting the outcome was 0.763 (95% confidence interval [CI] 0.714-0.813). Of the 1548 male participants at baseline, 211 had incidence of the study outcome. The final prediction model consisted of 16 variables, and the c-statistics for predicting the outcome was 0.735 (95% CI 0.699-0.771).
CONCLUSIONS:We developed a prediction model for older adults to forecast 11-year incidence of dependent status requiring nursing care or death in each sex. The predictability was fair, but we could not evaluate the external validity of this model. It could be of some help for healthcare planners, policy makers, clinicians, older individuals, and their family members to weigh the priority of support.