Background There is limited information about the association between long-term leisure time physical activity (LTPA) participation and healthcare costs. The purpose of this study was to investigate the association LTPA over adulthood with later life healthcare costs in the USA. Methods Using Medicare claims data (between 1999 and 2008) linked to the National Institutes of Health-American Association of Retired Persons (NIH-AARP) Diet and Health Study, we examined associations between nine trajectories of physical activity participation throughout adulthood with Medicare costs. Results Compared with adults who were consistently inactive from adolescence into middle age, average annual healthcare costs were significantly lower for maintainers, adults who maintained moderate (–US$1350 (95% CI: –US$2009 to –US$690) or −15.9% (95% CI: −23.6% to −8.1%)) or high physical activity levels (–US$1200 (95% CI: –US$1777 to –US$622) or −14.1% (95% CI: −20.9% to −7.3%)) and increasers, adults who increased physical activity levels in early adulthood (–US$1874 (95% CI: US$2691 to –US$1057) or −22.0% (95% CI: −31.6% to −12.4%)) or in middle age (–US$824 (95% CI: –US$1580 to –US$69 or −9.7% (95% CI −18.6% to −0.8%)). For the four trajectories where physical activity decreased, the only significant difference was for adults who increased physical activity levels during early adulthood with a decline in middle age (–US$861 (95% CI:–US$1678 to –US$45) or −10.1% (95% CI: −19.7% to −0.5%)). Conclusion Our analyses suggest the healthcare cost burden in later life could be reduced through promotion efforts supporting physical activity participation throughout adulthood.

中文翻译：

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成年后的休闲时间体育锻炼与较低的医疗保险费用相关：NIH-AARP饮食与健康研究队列相关的证据

背景技术关于长期休闲时间体育活动（LTPA）参与与医疗保健费用之间的关联的信息有限。这项研究的目的是调查在美国，LTPA与成年后的生活保健费用之间的关系。方法利用与美国国立卫生研究院（National Institutes of Health）-美国退休人员协会（NIH-AARP）饮食与健康研究相关的Medicare索赔数据（1999年至2008年之间），我们研究了整个成年期9种身体活动参与轨迹与Medicare费用之间的关联。结果与从青春期到中年一直不活跃的成年人相比，维持者，保持中度的成年人（–1350美元（95％CI：–2009美元至–690美元）或−15.9％（–保持正常）的成年人的平均年度医疗费用要低得多。 95％CI：-23.6％至-8。