Can bipolar disorder patients drink coffee?
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By David Liu, Ph.D. and eidting by Aimee Keenan-Greene
Friday July 1, 2011 (foodconsumer.org) -- An observational study in the May 2011 issue of Journal of Affective Disorders suggests using "social drugs" like coffee and tobacco may have something to do with bipolar disorder.
The study led by I. Maremmani and colleagues of University of Pisa and G. De Lisio Institute of Behavioural Sciences in Pisa, Italy found a link between bipolar spectrum and using elicit drugs and so called "social drugs", such as coffee and tobacco.
The researchers found the link after analyzing data from 562 patients who suffered mood disorders, as classified according to DSM-IV-R criteria and for the study. Cases were also classified into bipolar and non-bipolar, according to Hypomania Check-List 32.
Previously, C. Baethge and colleagues of University of Cologne Medical School in Germany said in their study published in the August 2009 issue of Bipolar Disorder that abuse of illicit drugs and stimulant alcohol is common in bipolar disorder patients, which to say the least would be a negative factor for prognosis.
The authors conducted the study of 352 patients who were diagnosed according to DSM-IV as type 1 and II bipolar Disorder and found those who drank coffee were 142 percent more likely to have suicidal acts and smoking boosted the risk by 79 percent. More coffee and more smoking were both linked with a higher risk.
But neither smoking nor drinking coffee was associated with the annual rates of all bipolar disorder related episodes, depression and manias.
A third study reported in the March 1996 issue of Archives of Internal Medicine showed among women of a general population, drinking coffee seemed to reduce the risk of dying from suicidal acts.
The study led by I Kawachi and colleagues of Harvard Medical School in Boston, MA found compared to nondrinkers, those who drank 2 to 3 cups of coffee per day were 66 percent less likely to die from suicidal acts.
The association was based on data of 86,626 US female registered nurses age 34 to 59 who were followed up for 10 years.
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