The researchers found that each unit increase in body mass index (BMI) was associated with a 6 percent lowered risk for normal-tension glaucoma.

研究者们发现，体重指数（BMI）每增加一个单位，患正常眼压型青光眼的风险就降低6%。

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The methodology for the "global peace index" was devised by the Economist Intelligence Unit, our sister company.

“全球和平指数”的方法学由本刊姊妹公司“经济学人信息社(Economist Intelligence Unit)”设计发明。

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Hamamatsu Photonics gained 6.4% after it was added to the MSCI World Index, while Nidec rose 3.8% on news it will acquire U. S. -based Emerson Electric's motors and controls unit.

日本浜松光电公司在加入到摩根·士丹利世界指数以后，上升了6.4%，而日本电产因收购美国艾默生电气公司的马达业务上升了3.8%。

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The study, remember, argues that a doubling of the relative wages of civil servants is needed to reduce a country's score on the corruption index by a single unit.

ECONOMIST: Reasons to be venal

The relationship is strong enough, Ms Van Rijckeghem and Ms Weder reckon, to suggest that raising average civil-service pay from 100% to 200% of the manufacturing wage reduces corruption by about one unit in the corruption index.

ECONOMIST: Reasons to be venal | The

Lower unit labor costs are confirmed by the employment cost index.

FORBES: Why Inflation Worries Are Overblown