Smoking and cognitive impairment among older persons in Malaysia
Introduction: Previous studies have shown conflicting results on the association between smoking and cognitive function. This study aims to examine the relationship of smoking with cognitive function. Methodology: Data for the study, consisting of 2553 older adults aged 60 years and older, were draw...
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| Format: | Article |
| Language: | English |
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Sage Publications
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/46306/ http://psasir.upm.edu.my/id/eprint/46306/1/Smoking%20and%20cognitive%20impairment%20among%20older%20persons%20in%20Malaysia.pdf |
| _version_ | 1848850634853318656 |
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| author | Momtaz, Yadollah Abolfathi Ibrahim, Rahimah Tengku Abd Hamid, Tengku Aizan Chai, Sen Tyng |
| author_facet | Momtaz, Yadollah Abolfathi Ibrahim, Rahimah Tengku Abd Hamid, Tengku Aizan Chai, Sen Tyng |
| author_sort | Momtaz, Yadollah Abolfathi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Introduction: Previous studies have shown conflicting results on the association between smoking and cognitive function. This study aims to examine the relationship of smoking with cognitive function. Methodology: Data for the study, consisting of 2553 older adults aged 60 years and older, were drawn from a nationwide household survey entitled “Determinants of Wellness among Older Malaysians: A Health Promotion Perspective” conducted in 2010. Results: Current smokers had lower rates of cognitive impairment compared to never smokers (17.4% vs 25.9%), while cognitive function in former or ex-smokers was almost similar to that of the never smokers. Findings from multiple logistic regression analysis showed that current smokers were 37% less likely to be cognitively impaired, compared to the never smokers (odds ratio [OR] = .63; 95% confidence interval [CI]: .46-.86) while controlling for potential confounders. No difference in cognitive function was observed between former smokers and never smokers (OR = .94; 95% CI: .71-1.25). Conclusion: Although the findings indicated a negative association between cigarette smoking and cognitive impairment, we are unable to conclude whether this relationship is causal or affected by other unmeasured confounding factors, especially survival bias. |
| first_indexed | 2025-11-15T10:09:25Z |
| format | Article |
| id | upm-46306 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:09:25Z |
| publishDate | 2015 |
| publisher | Sage Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-463062022-06-17T04:16:48Z http://psasir.upm.edu.my/id/eprint/46306/ Smoking and cognitive impairment among older persons in Malaysia Momtaz, Yadollah Abolfathi Ibrahim, Rahimah Tengku Abd Hamid, Tengku Aizan Chai, Sen Tyng Introduction: Previous studies have shown conflicting results on the association between smoking and cognitive function. This study aims to examine the relationship of smoking with cognitive function. Methodology: Data for the study, consisting of 2553 older adults aged 60 years and older, were drawn from a nationwide household survey entitled “Determinants of Wellness among Older Malaysians: A Health Promotion Perspective” conducted in 2010. Results: Current smokers had lower rates of cognitive impairment compared to never smokers (17.4% vs 25.9%), while cognitive function in former or ex-smokers was almost similar to that of the never smokers. Findings from multiple logistic regression analysis showed that current smokers were 37% less likely to be cognitively impaired, compared to the never smokers (odds ratio [OR] = .63; 95% confidence interval [CI]: .46-.86) while controlling for potential confounders. No difference in cognitive function was observed between former smokers and never smokers (OR = .94; 95% CI: .71-1.25). Conclusion: Although the findings indicated a negative association between cigarette smoking and cognitive impairment, we are unable to conclude whether this relationship is causal or affected by other unmeasured confounding factors, especially survival bias. Sage Publications 2015 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/46306/1/Smoking%20and%20cognitive%20impairment%20among%20older%20persons%20in%20Malaysia.pdf Momtaz, Yadollah Abolfathi and Ibrahim, Rahimah and Tengku Abd Hamid, Tengku Aizan and Chai, Sen Tyng (2015) Smoking and cognitive impairment among older persons in Malaysia. American Journal of Alzheimers Disease and Other Dementias, 30 (4). pp. 405-411. ISSN 1533-3175; ESSN: 1938-2731 https://journals.sagepub.com/doi/10.1177/1533317514552318 10.1177/1533317514552318 |
| spellingShingle | Momtaz, Yadollah Abolfathi Ibrahim, Rahimah Tengku Abd Hamid, Tengku Aizan Chai, Sen Tyng Smoking and cognitive impairment among older persons in Malaysia |
| title | Smoking and cognitive impairment among older persons in Malaysia |
| title_full | Smoking and cognitive impairment among older persons in Malaysia |
| title_fullStr | Smoking and cognitive impairment among older persons in Malaysia |
| title_full_unstemmed | Smoking and cognitive impairment among older persons in Malaysia |
| title_short | Smoking and cognitive impairment among older persons in Malaysia |
| title_sort | smoking and cognitive impairment among older persons in malaysia |
| url | http://psasir.upm.edu.my/id/eprint/46306/ http://psasir.upm.edu.my/id/eprint/46306/ http://psasir.upm.edu.my/id/eprint/46306/ http://psasir.upm.edu.my/id/eprint/46306/1/Smoking%20and%20cognitive%20impairment%20among%20older%20persons%20in%20Malaysia.pdf |