College of Arts and Sciences, Chapel Hill, North Carolina.
Lineberger Comprehensive Cancer Center, Chapel Hill, North Carolina.
Cancer. 2022 Jun 15;128(12):2375-2383. doi: 10.1002/cncr.34196. Epub 2022 Mar 23.
Young adult cancer survivors experience frailty and decreased muscle mass at rates equivalent to much older noncancer populations, which indicate accelerated aging. Although frailty and low muscle mass can be identified in survivors, their implications for health-related quality of life are not well understood.
Through a cross-sectional analysis of young adult cancer survivors, frailty was assessed with the Fried frailty phenotype and skeletal muscle mass in relation to functional and quality of life outcomes measured by the Medical Outcomes Survey Short-Form 36 (SF-36). z tests compared survivors with US population means, and multivariable linear regression models estimated mean SF-36 scores by frailty and muscle mass with adjustments made for comorbidities, sex, and time from treatment.
Sixty survivors (median age, 21 years; range, 18-29) participated in the study. Twenty-five (42%) had low muscle mass, and 25 were either frail or prefrail. Compared with US population means, survivors reported worse health and functional impairments across SF-36 domains that were more common among survivors with (pre)frailty or low muscle mass. In multivariable linear modeling, (pre)frail survivors (vs nonfrail) exhibited lower mean scores for general health (-9.1; P = .05), physical function (-14.9; P < .01), and overall physical health (-5.6; P = .02) independent of comorbid conditions.
Measures of frailty and skeletal muscle mass identify subgroups of young adult cancer survivors with significantly impaired health, functional status, and quality of life independent of medical comorbidities. Identifying survivors with frailty or low muscle mass may provide opportunities for interventions to prevent functional and health declines or to reverse this process.
Young adult cancer survivors age more quickly than peers without cancer, which is evidenced by a syndrome of decreased resilience known as frailty. The relationship between frailty (and one of its common components, decreased muscle mass) and quality of life among young adult cancer survivors was examined. Measuring decreased muscle mass and frailty identifies young survivors with poor quality of life, including worse general health, fatigue, physical function, and overall physical health, compared with nonfrail survivors. Interventions to address components of frailty (low muscle mass and weakness) may improve function and quality of life among young adult cancer survivors.
年轻的成年癌症幸存者经历衰弱和肌肉质量下降的速度与年龄较大的非癌症人群相当,这表明他们的衰老速度加快。尽管在幸存者中可以识别出衰弱和低肌肉质量,但它们对健康相关生活质量的影响尚不清楚。
通过对年轻成年癌症幸存者的横断面分析,使用 Fried 衰弱表型评估衰弱,并用 Medical Outcomes Survey Short-Form 36(SF-36)测量的功能和生活质量结果评估骨骼肌质量。z 检验比较了幸存者与美国人群平均值的差异,多变量线性回归模型通过衰弱和肌肉质量调整了合并症、性别和治疗后时间的影响,估计了 SF-36 的平均得分。
60 名幸存者(中位年龄 21 岁;范围 18-29 岁)参加了这项研究。25 名(42%)幸存者肌肉量低,25 名幸存者衰弱或衰弱前期。与美国人群平均值相比,幸存者报告了在 SF-36 各个领域的健康和功能障碍更差,这些问题在衰弱或肌肉量低的幸存者中更为常见。在多变量线性建模中,(衰弱前期)幸存者(与非衰弱者相比)的一般健康状况(-9.1;P=0.05)、身体功能(-14.9;P<0.01)和整体身体健康状况(-5.6;P=0.02)的平均得分较低,独立于合并症。
衰弱和骨骼肌质量的测量可以识别出健康、功能状态和生活质量明显受损的年轻成年癌症幸存者亚组,而与医学合并症无关。识别出衰弱或肌肉量低的幸存者可能为预防功能和健康下降或逆转这一过程提供机会。
年轻的成年癌症幸存者比没有癌症的同龄人衰老得更快,这表现为一种称为衰弱的复原力下降综合征。本研究考察了年轻成年癌症幸存者衰弱(及其常见组成部分之一,肌肉质量下降)与生活质量之间的关系。与非衰弱幸存者相比,测量肌肉质量下降和衰弱可以识别出生活质量较差的年轻幸存者,包括一般健康状况、疲劳、身体功能和整体身体健康状况更差。解决衰弱(低肌肉量和虚弱)的组成部分的干预措施可能会改善年轻成年癌症幸存者的功能和生活质量。