Benzodiazepines – Adverse Effects
On November 25, Mad in America posted a link to an article in the Journal of Neurological Sciences. The article is by Harnod et al, and is titled An Association between Benzodiazepine Use and Occurrence of Benign Brain Tumors. The authors studied the records of 62,186 individuals in Taiwan who had been prescribed a benzodiazepine for at least 2 months between 2000 and 2009. They compared the incidence of brain tumors in these patients with the incidence in patients in a matched-pairs control group. The hazard ratio for benign brain tumors (benzo group vs non-benzo group) was 3.15 (95% confidence interval: 2.37-4.20). The hazard ratio for malignant brain tumors was 1.21 (95% confidence interval: 0.52-2.81). What this means essentially is that one can be 95% confident that the benign tumor association is real, but that the malignant tumor result might have arisen by chance. ...