That's a statistically significant difference, the researchers say.

研究人员表示这是统计意义上的显著差异。

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Over the 13-year period, for example, 13.2% of January births were to teen mothers, compared with 12% in May -- a small but statistically significant difference, they say.

举例来说，在这13年中，1月份出生的孩子有13.2%母亲只有十几岁，而5月份出生的孩子这一比例为12%，二者相差不大，但在统计学上具有重要意义。

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The people in the omega-3 group lost 5.2 kilograms, or about 11.5 pounds, on average, compared to 5.8 kilograms (nearly 13 pounds) for the placebo group, not a statistically significant difference.

服用欧米茄- 3组人均减重5.2 kg(约11.5磅)，相比之下，服用安慰胶囊组人均减重5.8 kg(近13磅)，从统计上来说，差异并不显著。

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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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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.

ECONOMIST: AIDS