[Study on the status of nutrition in pregnant women, lactating women and babies in Yongjing, Gansu province].
OBJECTIVE
To assess the iodine status of pregnant women, lactating women and babies and to understand if iodized salt as the main iodine source had met the need of people's demand in regions where iodized salt coverage rate had been over 90%, for the last five years.


METHODS
Pregnant and lactating women, newborns and babies were selected randomly in region where iodized salt coverage rate had been more than 90%, for the five years. Urine iodine levels of pregnant and lactating women, newborns and babies, milk iodine of lactating women and thyroid-stimulating hormone (TSH) of newborns were measured.


RESULTS
The median urinary iodine (MUI) of people other than those recently pregnant women, had reached the MUI criterion recommended by WHO with the results as 174.18, 180.37, 147.42, 126.27, 145.26 microg/L, respectively. The percentage of TSH>5 pIU/ml of newborns was 14.5%. The median milk iodine of lactating women were in the range of 100-200 microg/L. The percentage of milk iodine < 150 microg/L of early lactating women was less than that of late lactating women (P < 0.01). There was a good correlation between urine iodine of babies and milk iodine of lactating women. The abnormal TSH of women was 15.4%. The abnormal TSH mainly existed in women whose urinary iodine level were lower than 150 microg/L.


CONCLUSIONS
Iodized salt as the main iodine source could basically meet the need of pregnant women, lactating women and babies whose diet structure was simple in the region. However, some people in the area were still under the status of iodine deficiency suggesting that surveillance should be enhanced in people who need more iodine and efficient measures, should be taken.
Wang
Yan-Ling
YL
Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, China.
Ge
Peng-Fei
PF
Wang
Guo-Hong
GH
Zhang
Yu-Xin
YX
Wang
Wei-Hua
WH
Yao
Lin
L
D000328:Adult; D002681:China; D005260:Female; D006042:Goiter / Q000517:prevention & control*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007454:Iodides / Q000032:analysis* / Q000652:urine; D007455:Iodine / Q000008:administration & dosage*; D008895:Milk, Human / Q000737:chemistry; D009752:Nutritional Status; D011159:Population Surveillance / Q000379:methods*; D011247:Pregnancy; D011264:Pregnancy Trimesters; D017673:Sodium Chloride, Dietary / Q000008:administration & dosage*; D013972:Thyrotropin / Q000032:analysis
D007454:Iodides; D017673:Sodium Chloride, Dietary; C034024:iodized salt; D013972:Thyrotropin; D007455:Iodine