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采用ＰＰＳ法，抽取全区３０个县（市）１２００户居民食用盐进行碘含量测定。结果含碘范围０～１８２ｍｇ／ｋｇ；盐碘均数４０．７ｍｇ／ｋｇ；居民碘盐合格率（≥２０ｍｇ／ｋｇ）为９０．１％。其中精制盐（外省产地加碘）碘含量均数为４０．８ｍｇ／ｋｇ，合格率为９１．３％；粗盐（广西自行加碘）含碘量均数为４０．１ｍｇ／ｋｇ，合格率为８５．５％。结果表明：①精盐合格率比粗盐合格率高（Ｐ＜０．０５）；②与１９９５年笔者调查结果（居民碘盐合格率４３．４％）相比，１９９７年居民碘盐合格有显著提高；③按每人每日食用盐量１０～１５ｇ推算，我区居民可从盐中摄碘２００～３５０μｇ，基本满足人体对碘营养的需要。
PPS method was used to extract iodine from 1200 households in 30 counties (cities) in the whole region. Results The range of iodine content was 0 ~ 182mg / kg; the average salt iodine number was 40.7mg / kg; the qualified rate of iodized salt of residents was ≥ 90.1%. The average iodine content of refined salt (iodine from other provinces) was 40.8mg / kg, the pass rate was 91.3%; the average iodine content of crude salt (Guangxi self-iodization) was 40.1mg / kg, the pass rate 85.5%. The results showed that: (1) The eligibility rate of salt was higher than that of crude salt (P <0.05); (2) Compared with the author’s survey results in 1995 (43.4% Increase; ③ per person per day consumption of salt 10 ~ 15g projections, residents in our region can take iodine 200 ~ 350μg from salt, the basic human body to meet the needs of iodine nutrition.