Is grandma’s forgetting things sign of dementia?

May 21st, 2009 - 4:42 pm ICT by IANS  

London, May 21 (IANS) Memory loss is one of the very few symptoms that may signal which 70-year-olds risk developing dementia, according to a study.
Several of the tests previously used to predict which elderly individuals risk developing dementia do not seem to work any longer.

The doctoral thesis presented at Sahlgrenska Academy of the University of Gotheberg, Sweden, shows that memory loss is the only factor that can still be used to indicate who is at risk, although not among the very old.

The study compared non-demented 70-year-olds examined in the early 1970s with nondemented 70-year-olds examined in 2000.

The results show that those who were examined in 2000 scored much higher on psychological tests than those examined 30 years earlier. This finding clearly indicates that such tests can no longer be used to predict future dementia.

In the early 1970s, several different tests could be used to predict people’s risks of developing dementia, but today it seems like psychiatric evaluation of the memory is the only useful test.

In addition, it is more difficult to predict dementia the higher the person’s level of education, said Simona Sacuiu, a physician who authored the thesis.

The follow-up of the 70-year-olds five years later showed that five percent had developed dementia. Those with memory problems showed an increased risk of developing dementia, although not everybody with poor memory developed dementia, said a release of the Sahlgrenska Academy.

Consequently, the link between forgetfulness and future dementia is more complex than commonly thought. Memory loss among elderly individuals may, but doesn’t have to be, an early sign.

In order to effectively detect dementia at an early stage, we need a useful tool that includes several types of tests, but the tests need continuous adjustments since the elderly of today perform much better at standardised psychological tests than previous generations, said Sacuiu.

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