Objective: Investigate the relation between average medical charge and severityrate.
目的：研究人均医疗费用与危重率的关系。
2
Effective fall prevention programmes aim to reduce the number of people who fall, the rate of falls and the severity of injury should a fall occur.
有效的跌伤预防规划旨在减少跌伤者数量，降低跌伤率，以及减轻伤害的严重程度（如果发生跌伤的话）。
3
The committee would also do away with a few other less well-known problems, such as histrionic personality disorder, and add in a scale to rate the severity of such traits.