The Negative Impact of Chronic Tobacco Smoking on Adult Neuropsychological Function: a Cross-sectional Study

Overview

Journal BMC Public Health

Publisher Biomed Central

Specialty Public Health

Date 2021 Jul 1

PMID 34193083

Citations 12

Authors

Mohammed Sh Nadar

Abdullah M Hasan

Mohammed Alsaleh

Affiliations

Soon will be listed here.

Abstract

Background: The evidence on the effects of chronic tobacco smoking on neuropsychological functions is conflicting. The literature remains limited by inconsistent accounting for potentially confounding biomedical and psychiatric conditions. This study aimed to assess the neuropsychological functions of adult chronic tobacco smokers in comparison to group-matched non-smokers.

Method: The study included 73 smokers and 84 group-matched non-smokers. The data was collected during the year 2019. After an initial interview to collect demographics and smoking profile, the subjects undertook neuropsychological assessments that targeted a wide range of cognitive domains.

Results: The performance of smokers was poorer on almost all neuropsychological domains, namely selective attention (p ≤ .001, p = .044), alternating attention (p = .002) working memory (p ≤ .001), Short-term memory (p = .006 and .003), Long-term memory (p ≤ .001), processing accuracy (p ≤ .001), and executive function (p = .011 and .026). Smokers were intact on processing speed. Smoking accumulation and lower age onset of regular smoking were correlated with lower neuropsychological function.

Conclusion: Our findings add to the growing body of evidence suggesting that chronic tobacco smoking impacts cognition negatively.

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