Dataset Information
Incidence of mild cognitive impairment in World Trade Center responders: Long-term consequences of re-experiencing the events on 9/11/2001.
Ontology highlight
ABSTRACT: Objective
This study examined whether World Trade Center (WTC) exposures and chronic posttraumatic stress disorder (PTSD) were associated with incidence of mild cognitive impairment (MCI) in a longitudinal analysis of a prospective cohort study of WTC responders.Methods
Incidence of MCI was assessed in a clinical sample of WTC responders (N = 1800) who were cognitively intact at baseline assessment. Crude incidence rates were calculated and compared to population estimates using standardized incidence ratios. Multivariable analyses used Cox proportional-hazards regression.Results
Responders were 53.1 years old (SD = 7.9) at baseline. Among eligible cognitively intact responders, 255 (14.2%) developed MCI at follow-up. Incidence of MCI was higher than expected based on expectations from prior published research. Incidence was higher among those with increased PTSD symptom severity, and prolonged exposure was a risk factor in apolipoprotein-?4 carriers.Conclusions
PTSD and prolonged WTC exposures were associated with increased incidence of MCI in WTC responders, results that may portend future high rates of dementia in WTC-exposed responders.
SUBMITTER: Clouston SAP
PROVIDER: S-EPMC6733774 | biostudies-literature | 2019 Dec
REPOSITORIES: biostudies-literature
Publications
Incidence of mild cognitive impairment in World Trade Center responders: Long-term consequences of re-experiencing the events on 9/11/2001.
Alzheimer's & dementia (Amsterdam, Netherlands) 20190906
<h4>Objective</h4>This study examined whether World Trade Center (WTC) exposures and chronic posttraumatic stress disorder (PTSD) were associated with incidence of mild cognitive impairment (MCI) in a longitudinal analysis of a prospective cohort study of WTC responders.<h4>Methods</h4>Incidence of MCI was assessed in a clinical sample of WTC responders (<i>N</i> = 1800) who were cognitively intact at baseline assessment. Crude incidence rates were calculated and compared to population estimates ...[more]
