School of Rehabilitaton Science, McMaster University, Hamilton, Ontario, Canada L8S 1C7.
Disabil Rehabil. 2010;32(1):50-6. doi: 10.3109/09638280902998789.
To evaluate the validity of the late life function and disability instrument (LLFDI) when applied to adults aged 44-65 years with chronic conditions.
We applied a convergent cross-sectional construct validity design to examine the association between the LLFDI subscales and the medical outcomes study (MOS) 36-Item Health Survey Physical Component Score (SF36 PCS), MOS Physical Functioning scale (PF10), 2-minute walk distance (2MWD) and 8-foot walk test (8FWT).
Our sample consisted of 174 community-dwelling adults age 45-65 years with one or more chronic conditions.
Participants were enrolled at a multidisciplinary family health practice.
The LLFDI function correlated strongly with the PF10 (r = 0.84) and moderately with the 2MWD (r = 0.53) and 8FWT (r = -0.48). The LLFDI disability limitation correlated moderately with the SF36 PCS, 2MWD and 8FWT (r = 0.67, 0.45, -0.32, respectively). The LLFDI disability frequency correlated moderately with the SF36 PCS, 2MWD and 8FWT (r = 0.44, 0.33, -0.31). Ninety-five percent confidence intervals on all correlation coefficients excluded zero.
Cross-sectional convergent validity of the LLFDI was supported when applied to adults 45-65 years of age with chronic conditions.
评估晚年功能和残疾量表（LLFDI）应用于患有慢性疾病的 44-65 岁成年人时的有效性。
我们采用了一种会聚的横断面结构有效性设计，以检验 LLFDI 分量表与医疗结局研究（MOS）36 项健康调查身体成分评分（SF36 PCS）、MOS 身体功能量表（PF10）、2 分钟步行距离（2MWD）和 8 英尺步行测试（8FWT）之间的关联。
我们的样本由 174 名年龄在 45-65 岁之间、患有一种或多种慢性疾病的社区居民组成。
参与者在一家多学科家庭健康诊所登记。
LLFDI 功能与 PF10 高度相关（r = 0.84），与 2MWD（r = 0.53）和 8FWT（r = -0.48）中度相关。LLFDI 残疾限制与 SF36 PCS、2MWD 和 8FWT 中度相关（r = 0.67、0.45、-0.32）。LLFDI 残疾频率与 SF36 PCS、2MWD 和 8FWT 中度相关（r = 0.44、0.33、-0.31）。所有相关系数的 95%置信区间均排除零。
当应用于患有慢性疾病的 45-65 岁成年人时，LLFDI 的横断面会聚有效性得到了支持。
