Shiratsuchi Daijo, Makizako Hyuma, Akaida Shoma, Miyake Yuto, Kiyama Ryoji, Tabira Takayuki, Tateishi Mana, Otsuka Rei, Takenaka Toshihiro, Kubozono Takuro, Ohishi Mitsuru
Department of Physical Therapy, School of Health Sciences, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890- 8544, Japan.
Faculty of Medicine, Kagoshima University, Kagoshima, Japan.
Aging Clin Exp Res. 2025 Sep 6;37(1):275. doi: 10.1007/s40520-025-03189-z.
Intrinsic capacity (IC) and frailty are distinct but complementary frameworks for understanding the heterogeneity of aging. Although both have been linked to self-rated health, little is known about how their combined status relates to older adults’ health perceptions. This cross-sectional study investigated how combinations of IC and frailty status were associated with self-rated health among community-dwelling older adults.
Data from 593 participants (mean age: 73.9 years, female: 62.2%) in the 2019 Tarumizu Study were analyzed. ,,,,, with scores ≥ 9 classified as high IC. Frailty was assessed using the Japanese version of the Cardiovascular Health Study criteria and dichotomized into robustness and frailty (pre-frailty or frailty). Self-rated health was assessed with a four-point item and dichotomized into good or poor. Participants were classified into four groups: robust with high IC, frailty with high IC, robust with low IC, and frailty with low-IC.
Group proportions were: 30.0% (robust with high IC), 23.1% (frailty with high IC), 15.9% (robust with low IC), and 31.0% (frailty with low IC). Multivariable logistic regression showed that only the frailty with low-IC group had significantly greater odds of poor self-rated health compared to the robust with high-IC group (OR = 3.55, 95% CI: 1.34–9.36).
Co-occurrence of low IC and frailty was significantly associated with poor self-rated health. These findings suggest that considering IC and frailty may enhance understanding of self-rated health in later life.
内在能力（IC）和衰弱是理解衰老异质性的不同但互补的框架。尽管两者都与自评健康有关，但对于它们的综合状态如何与老年人的健康认知相关知之甚少。这项横断面研究调查了IC和衰弱状态的组合如何与社区居住的老年人的自评健康相关。
分析了2019年垂水研究中593名参与者（平均年龄：73.9岁，女性：62.2%）的数据。IC得分≥9被归类为高IC。使用日本版心血管健康研究标准评估衰弱，并将其分为强健和衰弱（虚弱前期或衰弱）。用一个四分项目评估自评健康，并将其分为良好或不佳。参与者被分为四组：高IC强健组、高IC衰弱组、低IC强健组和低IC衰弱组。
各组比例分别为：30.0%（高IC强健组）、23.1%（高IC衰弱组）、15.9%（低IC强健组）和31.0%（低IC衰弱组）。多变量逻辑回归显示，与高IC强健组相比，只有低IC衰弱组自评健康不佳的几率显著更高（OR = 3.55，95% CI：1.34 - 9.36）。
低IC和衰弱同时出现与自评健康不佳显著相关。这些发现表明，考虑IC和衰弱可能会增强对晚年自评健康的理解。
