Recommended by China Disabled Persons' Federation, the survey is carried out through delamination , isometry, probability and multistage sampling, 734 nationwide counties (cities, districts) and 5980 subdistricts is taken out, almost 2.6 million people, 2
Recommended by China Disabled Persons' Federation, the survey is carried out through delamination , isometry, probability and multistage sampling, 734 nationwide counties (cities, districts) and 5980 subdistricts is taken out, almost 2.6 million people, 2
中国残联介绍，这次残疾人抽样调查采用分层、等距、概率比例、多阶段抽样方法，从全国范围内抽取了734个县（市、区）5980个调查小区，设计样本量近260万人，占全国总人口的2‰。