Smoking and Cognitive Impairment Among Older Persons in Malaysia

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.

http://aja.sagepub.com/cgi/content/abstract/30/4/405?rss=1

Source: American Journal of Alzheimer's Disease and Other Dementias - June 1, 2015 Category: Geriatrics Authors: Momtaz, Y. A., Ibrahim, R., Hamid, T. A., Chai, S. T. Tags: Current Topics in Research Source Type: research