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Table 3 UN Age Sex accuracy Index* for DSP population, by region, 1999

From: Mortality registration and surveillance in China: History, current situation and challenges

Region UN Index
North China 17.7
Northeast China 15.2
East China 21.9
Central China 19.7
South China 22.9
Northwest China 20.5
South West China 23.0
  1. Source: Chinese Academy of Medical Sciences, 2004
  2. The United Nations Index measures the quality of population data as follows: < 20 = accurate; 20 to 40 = inaccurate; > 40 = highly inaccurate [13]