某病发病率=一定时期内某动物群中该病新病例数/同期内该群体动物平均数×100% 14、死亡率(mortality or death rate):指某动物群体在一定时间内,死亡动物总 数与该群体同期动物平均数之比例。
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Excess mortality, defined as a greater death rate than normal, was around 4 in 1,000, or 0.4% of the population.
该超额死亡率，是大约1000人中有4人，或占总人口的0.4%(超额死亡率是指死亡人数超过正常节率)。
Excess mortality, defined as a greater death rate than normal, was around 4 in 1, 000, or 0.4% of the population.
该超额死亡率，是大约1000人中有4人，或占总人口的0.4%(超额死亡率是指死亡人数超过正常节率)。
Those who consumed three or more drinks a day still had a lower risk of death from coronary heart disease, but had a higher mortality rate over all.
每天饮酒三杯或以上的人死于冠心病的几率也要低一些，但总体死亡率更高。
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