Though the effectiveness of many treatments varies widely across individuals, treatments are rarely rigorously evaluated on a personal basis. Instead, pressed for time, physicians rely on trial and error testing. But protocols for personal experiments are simple, and their benefits are well documented.
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Why aren’t n-of-1 experiments already common for chronic conditions?
Because many treatments’ effects vary depending on the individual, some researchers argue that effectiveness should be evaluated per patient. Yet a simple evaluation protocol that’s been tested and refined for 30 years, called an n-of-1 trial, is rarely used. Why?