They found that the risk of developing dementia during the 20 years that followed were:The researchers say that even though benzodiazepine is effective for the treatment of insomnia and anxiety, there is growing evidence that it is linked to a number of adverse outcomes among seniors, including serious falls and fractures caused by falls (however, a 2007 Harvard study found no link between benzodiazepine usage and hip fractures). Now there is another adverse outcome - the possibility of developing dementia.
- 4.8 per 100 person years among those on benzodiazepine
- 3.2 per 100 person years among those not on benzodiazepine