The UNICEF multiple indicators cluster surveys (MICS), and Demographic and Health Surveys (DHS) are key sources for statistical analysis, particularly where such data are not available in national systems.
36. 儿童基金会多指标类集调查和人口与健康调查，是统计分析的重要来源，特别在国家系统没有此类数据的情况下更是如此。