School of Rehabilitation Science, McMaster University, IAHS, 1400 Main St. W. Room 435, Hamilton, ON, L8S 1C7, Canada.
Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, ON, Canada.
Aging Clin Exp Res. 2023 May;35(5):1073-1080. doi: 10.1007/s40520-023-02382-2. Epub 2023 Mar 22.
The Life-Space Assessment (LSA) can compliment traditional physical performance measures of mobility by accounting for the interaction between individuals and their environment. However, there are no studies that have generated percentile curves showing sex-stratified reference values in a large population-based sample of community-dwelling adults, making its interpretation difficult. Therefore, this study aimed to establish sex-stratified reference values for the LSA in middle-aged and older Canadians.
Baseline data for participants aged 45-84 years old from the Canadian Longitudinal Study on Aging (CLSA) were used (n = 22,154). Quantile regression was used to estimate specific percentiles, with age as the independent variable and LSA scores as the dependent variable. Models were run for the whole sample, then separately for males and females. The models were cross-validated to assess their reliability. CLSA inflation and analytic weights were applied.
On average, the sample was 62.5 ± 10.0 y.o. (51.1% males), with a weighted mean LSA score of 89.2 ± 17.0. There was also a decrease in LSA scores with age, where scores were lower for older age groups compared to younger groups, and LSA scores were lower for females relative to males.
Reference data will aid in interpreting, comparing, and making inferences related to LSA scores obtained in clinical and research settings for Canadian adults.
生活空间评估（LSA）可以通过考虑个体与其环境之间的相互作用，补充传统的移动性身体表现测量。然而，目前还没有研究生成百分比曲线，显示出在大型基于社区的成年人群体样本中按性别分层的参考值，这使得其解释变得困难。因此，本研究旨在为加拿大中年和老年人建立 LSA 的按性别分层参考值。
使用加拿大老龄化纵向研究（CLSA）中年龄在 45-84 岁的参与者的基线数据（n=22154）。使用分位数回归来估计特定百分位数，年龄为自变量，LSA 得分为因变量。为整个样本、男性和女性分别运行模型。交叉验证模型以评估其可靠性。应用 CLSA 膨胀和分析权重。
平均而言，样本的年龄为 62.5±10.0 岁（51.1%为男性），加权平均 LSA 得分为 89.2±17.0。LSA 得分随年龄的变化而下降，与年轻组相比，年龄较大的组的得分较低，女性的 LSA 得分相对男性较低。
参考数据将有助于解释、比较和推断在加拿大成年人的临床和研究环境中获得的 LSA 得分。
