The patients who got the top dose of eteplirsen were able to walk 89 meters further than those who started placebo, and the difference was statistically significant.

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Gay men were also intermediate, although in their case the difference was not statistically significant.

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Crestor did better than all of them, but the difference was not statistically significant compared with Lipitor.

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The difference was not statistically significant.

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There was no statistically significant difference in the development of FDA-defined valve abnormalities between Belviq and placebo-treated patients.

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There was no statistically significant difference among these groups to volunteer time with retarded children or to resist temptation to cheat on a test (There was only one group in which a majority did not cheat: the atheists).

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But the most scientifically credible study of the effects of Medicaid, based on randomly assigning 10, 000 people to Medicaid coverage in Oregon, found there was no statistically significant difference in ER use between those newly enrolled in Medicaid relative to the (largely uninsured) comparison group.

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There was a trend toward the virus helping patients live longer, but the difference is not yet statistically significant.

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