Ninety-three patients who took Vytorin in the study developed cancer, compared to 65 on placebo, a statistically significant difference.

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Unfortunately (and surprisingly) only two of the studies addressed the question of disease transmission directly, and the numbers involved were too small to find a statistically significant difference between groups.

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The researchers said they found a "statistically significant" difference between the breath profiles of the mice infected with the bacteria and the mice that were uninfected.

BBC: Lung infection identified using 'breath-print'

If you brew a green tea at 80C for 2 minutes, you will not observe a (statistically significant) difference in taste versus 1 min at 90C or 30 seconds at boiling.

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The median progression-free survival for patients receiving T-DM1 was 9.6 months, compared to 6.4 months in the group receiving Xeloda and Tykerb, a difference considered statistically significant.

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The new results correlate well with Milgram's: 70 percent of the 40 participants were willing to continue after 150 volts, compared with 82.5 percent in Milgram's study -- a difference that is not statistically significant, Burger said.

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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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Participants making a full smile performed better than the polite-smile group, but the difference wasn't statistically significant and needs to be studied further, she says.

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There is still a chance that patients on Ranexa did better than those who received placebos, but the difference wasn't statistically significant.

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