Should both iodised and non-iodised salt be made available in Chinese cities? A cross-sectional survey

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Abstract

Objective: To contribute evidence relevant to the policy of supplying iodised salt (IS), non-iodised salt (NIS) or both in Chinese cities. Design: Subnational telephone interview survey. Setting: China. Participants: Totally, 24 557 telephone numbers were dialled and 4833 citizens accepted the telephone interview. The telephone numbers were randomly selected by random digit dialling and a Mitofsky-Waksberg two-stage sampling method in 17 capital cities and 6 coastal cities from 17 iodine deficiency disorder (IDD)-eliminated provinces (municipalities). Results: The 4833 citizens finished the telephone interview. Among them, 3738 (77.3%) citizens chose IS, 481 (10%) citizens chose NIS, and the others chose both IS and NIS. The citizens' awareness rates of IDD and IDD preventive measures were 68.7% and 62.5%, respectively. Conclusions: It is not a suitable time to supply IS and NIS simultaneously in the developed cities of China, but a pilot project may be conducted in the cities where IDD has been sustainably eliminated, there is strong awareness of IDD and the population can make informed decisions regarding IS. IDD health education should be further strengthened, especially regarding the potential for IQ damage.

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Yu, J., Liu, P., Liu, Y., Liu, S. J., & Sun, D. J. (2014). Should both iodised and non-iodised salt be made available in Chinese cities? A cross-sectional survey. BMJ Open, 4(7). https://doi.org/10.1136/bmjopen-2014-005397

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