(CNN) -- According to the Alzheimer's Association, 44 million people live with dementia worldwide. That number is expected to triple in just 35 years.
Alzheimer's is usually diagnosed when the disease has progressed. While there's no cure, early detection could lead to early intervention, which may slow the disease. And a simple blood test could be the key, according to new study published Thursday in Alzheimer's & Dementia, a journal of the Alzheimer's Association.
Researchers used blood samples from 1,148 people. Ten proteins in the blood were found to predict whether people with mild cognitive impairment would develop Alzheimer's within a year.
As promising as this new test appears to be, the Alzheimer's Association says it isn't ready for the doctor's office yet. "To give the findings credibility, they need to be replicated by other researchers in larger, more diverse populations. "