[Evaluation of iron fortified soy sauce on changes of anemia prevalence in 2004-2013].

OBJECTIVE:To understand the role of iron fortified soy sauce( IFSS) on the decrease of anemia prevalence in Chinese population in 2004- 2013. METHODS:Meta analysis was used to analyze the effect of IFSS on anemia through published randomcontrol studies on the population intervention with IFSS. Integrated with other data from IFSS statistic on IFSS production and consumption, the recovered population from IFSS was identified and anemia decrease determined, therefore, IFSS contribution to anemia change could be estimated. RESULTS:By Meta analysis, the anemia rate of the population consumed IFSS was 27% compared with the anemia rate of the population non-consumed IFSS. In the past 10 years, IFSS had covered more than 186 millions population with effect validity time. A total of 28. 49 millions anemic population recovered from anemia. To recover one anemic with IFSS, the cost was 0. 12 RMB. CONCLUSION:IFSS has showed effect on the decline of anemia prevalence in last decade, 23. 2% of the decrease was estimated owe to IFSS project, but there are unidentified factors which may bring bias to the result.