Word: indexes
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...report, published in the Nov. 27 Archives of Internal Medicine and headed by Karin B. Michels, associate professor of obstetrics, gynecology, and reproductive biology at HMS and Brigham and Women’s Hospital, explored the link between body mass index (BMI) and premenopausal breast cancer...
Michels and her colleagues examined over 113,000 participants from 1989 to 2003 and found that a higher index correlated with a lower probability of premenopausal breast cancer...
...Beijing clean enough to host an Olympics? Last week cast some serious doubts. In one 24-hour period, the city was enveloped by a dense, dirty gray fog and the air-pollution index hit 414 on a scale that tops out at 500. Authorities consider that level "heavily polluted" and recommended that citizens "avoid outdoor activities." The fog was so thick that municipal officials closed one of the city's main highways and scores of flights into the capital were delayed...
...summit, which ended in early November and featured a whopping 42 heads of state, authorities ordered half a million official cars off the roads and said 400,000 other drivers had "volunteered" not to use their vehicles. The measures worked--for a short time. The air-pollution index fell to a normal level on the last day of the meeting. Within days, however, the smog shot back...
...Still, Hong Kong's skies at least remain brighter than those of some Chinese cities. Last week, Beijing was forced to close highways and delay flights in and out of its airports due to a choking, opaque haze, while its air-pollution index reached 414 out of a possible 500-a level even Chinese authorities described as "hazardous." By comparison, Hong Kong's troubles seemed almost enviable...