Medical research

Defining clinical vs. statistical significance

The practice of null hypothesis testing has traditionally been used to interpret the results of studies in a wide variety of scientific fields. Briefly, significance testing involves the calculation of an outcome statistic, ...

Alzheimer's disease & dementia

'Remarkable' Alzheimer's drug reduces cognitive decline, study shows

US pharmaceutical giant Eli Lilly on Wednesday announced its experimental Alzheimer's drug significantly slowed cognitive and functional decline, results hailed as "remarkable" by experts despite some patients experiencing ...

Cardiology

No increased risk of stroke after spinal fusion surgery

(HealthDay) -- In the three years following spinal fusion surgery, the incidence of stroke is similar to or insignificantly lower than that of controls, according to a study published in the June issue of The Spine Journal.

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