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Impact of COPD and anemia on motor and cognitive performance in the general older population: results from the English longitudinal study of ageing.
Respiratory Research ( IF 4.7 ) Pub Date : 2020-02-03 , DOI: 10.1186/s12931-020-1305-6
Inken Padberg 1 , Alice Schneider 2, 3 , Jessica Lee Rohmann 4 , Sean Walter Kelley 1, 5 , Ulrike Grittner 2, 3 , Bob Siegerink 1
Affiliation  

BACKGROUND Cognitive and motor-performance decline with age and the process is accelerated by decline in general health. In this study, we aimed to estimate the effects of COPD and HB levels on cognitive and motor performance in the general older population and assess potential interaction. METHODS The English Longitudinal Study of Aging is a population-based cohort study including measurements of lung-function and HB levels together with cognitive and motor performance testing. Data were collected from 5709 participants including three measurement time over eight years. COPD was defined using lung-function-parameters and clinical symptoms. HB was assessed continuously and low HB was defined using clinical anemia cutoffs. Linear mixed-effects regression models were used to quantify the associations of COPD and HB with outcome measures, both individually and in combination. RESULTS Participants with both low HB and COPD demonstrated worse motor performance compared to individuals with only one exposure, resulting in up to 1 s (95%CI, 0.04-1.8) longer time needed to complete the five times sit to stand task than what would be expected based on purely additive effects. Additionally in individuals with COPD, the time to complete the motor-performance task per unit decrease in continuous HB levels was longer than in participants without COPD after full adjustment for confounding (up to 1.38 s/unit HB level, 95% CI: 0.65-2.11). CONCLUSION In persons with COPD low HB levels may contribute to low motor-performance in a supra additive fashion. Further studies should re-evaluate whether earlier treatment of lower HB in these individuals might be beneficial.

中文翻译:

COPD和贫血对一般老年人群运动和认知能力的影响:来自英国纵向老龄化研究的结果。

背景技术认知和运动能力随着年龄的增长而下降,并且该过程由于总体健康的下降而加速。在这项研究中,我们旨在评估COPD和HB水平对一般老年人群认知和运动表现的影响,并评估潜在的相互作用。方法老年英语纵向研究是一项基于人群的队列研究,包括肺功能和HB水平的测量以及认知和运动表现测试。从5709名参与者那里收集了数据,其中包括八年中的三个测量时间。使用肺功能参数和临床症状定义COPD。连续评估HB,并使用临床贫血临界值定义低HB。线性混合效应回归模型用于量化COPD和HB与结局指标的关联,单独或组合使用。结果HB和COPD较低的参与者与仅一次暴露的个体相比,表现出较差的运动表现,导致完成五次站立坐姿任务所需的时间最多比原来多1 s(95%CI,0.04-1.8)。完全基于加和效应 此外,在患有COPD的个体中,在连续进行HB降低后,完成每单位运动功能任务下降所需的时间要比没有COPD的参与者经过充分调整混杂因素后的时间更长(高达1.38 s /单位HB水平,95%CI:0.65- 2.11)。结论在COPD患者中,低HB水平可能以超加性方式导致低运动功能。进一步的研究应重新评估这些个体中较低的HB早期治疗是否有益。结果HB和COPD较低的参与者与仅一次暴露的个体相比,表现出较差的运动表现,导致完成五次坐姿站立任务所需的时间最多比原来多1 s(95%CI,0.04-1.8)。完全基于加和效应 此外,在患有COPD的个体中,在连续进行HB降低后,完成每单位运动功能任务下降所需的时间要比没有COPD的参与者经过充分调整混杂因素后的时间更长(高达1.38 s /单位HB水平,95%CI:0.65- 2.11)。结论在COPD患者中,低HB水平可能以超加性方式导致低运动功能。进一步的研究应重新评估这些个体中较低的HB早期治疗是否有益。结果HB和COPD较低的参与者与仅一次暴露的个体相比,表现出较差的运动表现,导致完成五次站立坐姿任务所需的时间最多比原来多1 s(95%CI,0.04-1.8)。完全基于加和效应 此外,在患有COPD的个体中,在连续进行HB降低后,完成每单位运动功能任务下降所需的时间要比没有COPD的参与者经过充分调整混杂因素后的时间更长(高达1.38 s /单位HB水平,95%CI:0.65- 2.11)。结论在COPD患者中,低HB水平可能以超加性方式导致低运动能力。进一步的研究应重新评估这些个体中较低的HB早期治疗是否有益。
更新日期:2020-02-04
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