本课题是利用问卷进行的描述性调查研究。
应用描述性的研究方法对酒后驾驶交通事故回顾性调查。
In this paper, descriptive statistic analysis and retrospective investigation methods is used for the drunken-driving accidents.
方法利用宝安区1984 ~ 2002年疫情汇编和宝安区统计局历年人口年鉴进行回顾性调查，并作描述性研究分析。
Methods Retrospective investigation and descriptive research analysis were made with annuals reports of epidemic situation during 1984 to 2002 in Baoan district.
方法利用宝安区1984 ~ 2003年疫情汇编和宝安区统计局历年人口年鉴进行回顾性调查，并作描述性研究分析。
Methods Retrospective survey and descriptive research analysis were made with annuals reports of infections diseases during 1984 and 2003 in Baoan District.
方法采用回顾性调查方法，对2004年4月至2006年4月出生缺陷资料进行流行病学描述性分析和统计学分析。
Methods Use retrospective ascertainment methods. Data of birth defect between April 2004 and April 2006 was epidemic described and statistically analyzed.
方法采用回顾性调查方法，对2004年4月至2006年4月出生缺陷资料进行流行病学描述性分析和统计学分析。
Methods Use retrospective ascertainment methods. Data of birth defect between April 2004 and April 2006 was epidemic described and statistically analyzed.
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