4.5 Article

Population-Based Estimates of 1-Year Mortality After Major Surgery Among Community-Living Older US Adults

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JAMA SURGERY
卷 157, 期 12, 页码 -

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AMER MEDICAL ASSOC
DOI: 10.1001/jamasurg.2022.5155

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  1. Yale Claude D. Pepper Older Americans Independence Center [P30AG021342]
  2. NIH grant from the National Institute on Minority Health and Health Disparities [R01MD017298]
  3. NIH grant from the National Institute on Aging [U01AG032947]

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Despite the significance of geriatric surgery in public health decision-making and policies, there is a lack of contemporary nationally representative mortality data. This study aimed to calculate population-based estimates of mortality after major surgery in community-living older adults in the US and investigate the differences based on key demographic, surgical, and geriatric characteristics. The findings highlight the elevated mortality rates among frail older adults and those with probable dementia, suggesting the prognostic value of geriatric conditions after major surgery.
IMPORTANCE Despite their importance to guiding public health decision-making and policies and to establishing programs aimed at improving surgical care, contemporary nationally representative mortality data for geriatric surgery are lacking. OBJECTIVE To calculate population-based estimates of mortality after major surgery in community-living older US adults and to determine how these estimates differ according to key demographic, surgical, and geriatric characteristics. DESIGN, SETTING, AND PARTICIPANTS Prospective longitudinal cohort study with 1 year of follow-up in the continental US from 2011 to 2018. Participants included 5590 community-living fee-for-service Medicare beneficiaries, aged 65 years or older, from the National Health and Aging Trends Study (NHATS). Data analysis was conducted from February 22, 2021, to March 16, 2022. MAIN OUTCOMES AND MEASURES Major surgeries and mortality over 1 year were identified through linkages with data from the Centers for Medicare & Medicaid Services. Data on frailty and dementia were obtained from the annual NHATS assessments. RESULTS From 2011 to 2017, of the 1193 major surgeries (from 992 community-living participants), the mean (SD) age was 79.2 ( 7.1) years; 665 were women (55.7%), and 30 were Hispanic (2.5%), 198 non-Hispanic Black (16.6%), and 915 non-Hispanic White ( 76.7%). Over the 1-year follow-up period, there were 206 deaths representing 872 096 survey-weighted deaths and 13.4%(95% CI, 10.9%-15.9%) mortality. Mortality rates were 7.4%(95% CI, 4.9%-9.9%) for elective surgeries and 22.3%(95% CI, 17.4%-27.1%) for nonelective surgeries. For geriatric subgroups, 1-year mortality was 6.0% (95% CI, 2.6%-9.4%) for persons who were nonfrail, 27.8%(95% CI, 21.2%-34.3%) for those who were frail, 11.6%(95% CI, 8.8%-14.4%) for persons without dementia, and 32.7%(95% CI, 24.3%-41.0%) for those with probable dementia. The age- and sex-adjusted hazard ratios for 1-year mortality were 4.41 (95% CI, 2.53-7.69) for frailty with a reduction in restricted mean survival time of 48.8 days and 2.18 (95% CI, 1.40-3.40) for probable dementia with a reduction in restricted mean survival time of 44.9 days. CONCLUSIONS AND RELEVANCE In this study, the population-based estimate of 1-year mortality after major surgery among community-living older adults in the US was 13.4% but was 3-fold higher for nonelective than elective procedures. Mortality was considerably elevated among older persons who were frail or who had probable dementia, highlighting the potential prognostic value of geriatric conditions after major surgery.

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