Multistage stratified cluster sampling method was used for the sampling.
采用多阶段整群分层抽样方法。
Methods. The survey was conducted according to multi-stage stratified cluster sampling method.
方法：分阶段分层整群随机抽样调查。
Methods Questionnaire and multistage stratified cluster sampling method were used for the survey.
方法进行问卷调查；采用多阶段整群分层抽样方法。
Methods With stratified cluster sampling method, 2 519 students were questionnaired in Anhui province.
方法采用分层整群抽样方法，对安徽省2 519名中小学生进行问卷调查。
Methods a stratified cluster sampling method was used to survey 6 298 girls premenstrual preparations.
方法采用分层整群抽样的方法，对蒙汉族中小学女生6 2 98名进行经前准备情况调查。
Multiple stratified cluster sampling method was used in the Health Service Investigation on residents in Weihai.
利用分层整群抽样的方法对威海市居民进行健康调查。
Methods: Stratified cluster sampling method was used to choose students to complete "SCL 90 Mental Symptoms Table".
方法：以简明精神症状自评量表(SCL 90)为测试工具，采用分层整群随机抽样研究方法。
Methods With stratified cluster sampling method, 2,000 undergraduates were investigated by Coping Style Questionnaire.
方法通过分层整群抽样对广州地区2 000名大学生开展应对方式的问卷调查。
Methods 3 460 children aged 3 to 6 were enrolled into this study by using a stratified cluster sampling method in Wuhan. Parents of the children were surveyed with a questionnaire.
方法采用分层整群抽样方法抽取武汉市3 460名3~6岁儿童作为研究对象，应用自行设计的儿童睡眠状况问卷对儿童家长进行调查。
Methods:Adopt the method of stratified cluster sampling, women were investigated through questionnaire in family.
方法：采用分层整群抽样的方法，对育龄妇女进行入户调查。
Methods: Stratified random cluster sampling method was used to determine the survey sample.
方法：以分层随机整群抽样的方法，确定调查样本。
RESEARCH METHODThe stratified multi-stage cluster random sampling method was used in the survey.
研究方法本研究采用分层整群随机抽样方法进行抽样。
Methods The questionnaire survey was conducted among 1 700 college students with stratified-cluster sampling method.
方法采用分层整群抽样方法对暨南大学在校学生1 700名进行问卷调查。
Method: Using stratified cluster sampling, sampling an elementary school respectively in the city and countryside, carries on the check by sight and the correlation factor investigation.
方法：应用分层整群抽样方法，在城市、农村小学中各抽取一所小学，进行视力检查及相关因素调查。
Method: Using stratified cluster sampling, we choose 1600 soldiers and investigate by questionnaires and secret talking.
采用分层整群抽样方法，选取1600名战士，以无记名调查问卷和向调查人员访谈的方式进行调查。
Methods Serum uric acid (SUA) was measured among 7778 inhabitants aged over 20 years old in 2 communities in Nanjing with the method of stratified cluster sampling.
方法采用分层整群抽样的方法，对南京市两个社区7778名20岁以上的居民进行了血尿酸普查。
Methods A cluster stratified sampling method was used to choose 3 251 students from 60 classes in 10 middle schools, among which, 3 044 questionnaires were available.
方法按照分层随机整群抽样的方法，抽取蚌埠市10所中学60个班级的3 251名高中生为研究对象，获有效问卷3 044份。
Methods Subjects were collected from community population by stratified multi-stage cluster sampling method. The data gathered from case investigation and serological detection.
方法对社区人群采用多阶段分层整群随机抽样方法抽取研究对象，进行个案调查和血清学检测。
Method A total of 4 882 undergraduates from 6 universities in Shanxi province was investigated with multistage stratified random cluster sampling.
方法采用多阶段分层随机整群抽样方法调查山西省普通高校一、二、三年级本专科大学生4 882名。
METHOD:63 medical institutes nurses have been investigated by Stratified cluster sampling RESULTS. nurses of medical institutes are scarce and their qualities are low.
方法采用分层整群抽样方法调查了63家医疗机构的护理人员。
The genetic resources of South Shaanxi white goats are examined with the method of Stratified Random Cluster sampling.
以系统随机整群抽样法对陕南白山羊进行了遗传资源的抽样检测。
Method: By stratified cluster sampling, a retrospective epidemiological survey was conducted on 145 patients who had used Nabumetone in the treatment.
方法：经过分层整群抽样，对145例服用萘丁荚酮的患者进行了回顾性流行病学调查。
Methods According with the methods of the forth epidemiologic sampling survey for tuberculosis in our country, the method of stratified cluster random sampling was use in this survey.
方法根据全国第四次结核病流行病学抽样调查方案，采用分层整群随机抽样方法抽取调查点，然后根据调查结果进行分析。
Methods The survey of prevalence of dental caries in group aged 12 and 15 years in Anhui province was conducted using the non-proportional, stratified, cluster sampling method.
方法对安徽省四县市的12岁及15岁儿童的龋病发病情况进行抽样调查，采用分层、不等比、多阶段整群抽样的方法。
Methods: By using questionnaires with multistage stratified random cluster sampling method, 726 valid questionnaires of 800 were backed from the university students in 4 universities in Dalian city.
对象与方法：研究对象采取分层整群随机抽样的方法，在大连市4所高校大一、大四年级学生中发放问卷800份，收回有效问卷726份。
METHODS an investigation was made by cluster and stratified sampling method.
方法采用多阶段分层整群抽样方法入户调查。
Methods504 pilots were selected with the method of stratified cluster sampling , and were valuated by coping style scale, state-trait anxiety scale , Symptom checklist-90( SCL-90).
方法整群抽样抽取飞行员504名，进行应对方式量表、状态-特质焦虑量表、症状自评量表（SCL-90）测试。
Methods: in the communities chosen by stratified cluster random sampling method, we used Geriatric Depression Scale (GDS) to screen about 528 old people to identify the depressed ones.
方法：采用分层整群随机抽样方法在抽取的社区居委会，用老年抑郁量表(GDS)对528名社区老年人进行筛查。
Methods With the method of cluster stratified random sampling, a questionnaire survey was conducted in medical and non-medical higher-educated school in Jilin city.
方法采用整群分层随机抽样的方法，对吉林市某医学院校及非医学高校的在校大学生进行问卷调查。
Methods With the method of cluster stratified random sampling, a questionnaire survey was conducted in medical and non-medical higher-educated school in Jilin city.
方法采用整群分层随机抽样的方法，对吉林市某医学院校及非医学高校的在校大学生进行问卷调查。
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