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Zhang D, Wang Y, Li W, Duan Y, Li F, Cui Y. Iodine status and knowledge among pregnant and lactating women in Large City in Northern China after nearly 30 years of the universal salt iodization. Eur J Nutr 2024:10.1007/s00394-024-03465-0. [PMID: 39030442 DOI: 10.1007/s00394-024-03465-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 07/01/2024] [Indexed: 07/21/2024]
Abstract
BACKGROUND With the implementation of the universal salt iodization, the iodine nutrition for children and adults has been appropriate, but pregnant women are still at risk of iodine deficiency. It is of great public health significance to explore the iodine status and knowledge, and influence factors and the appropriate health education methods among pregnant and lactating women. METHODS From January 2022 to December 2023, at least 50 pregnant women and 50 lactating women were randomly selected from the resident population annually in 16 districts of Tianjin, North China. A total of 1671 pregnant women and 1658 lactating women were recruited. All participants' households salt and random urine samples were collected. A questionnaire was conducted to collect data on iodine related knowledge and behaviors as well as needs of health education from all participants. Logistic regression models were constructed to analyze the factors affecting the iodine related knowledge level. We used the Rasch model and the quadrantal graph to analyze the participants' knowledge level on different iodine-related questions and their needs for health education. RESULTS The median urine iodine concentration (UIC) of pregnant and lactating women in Tianjin were 152.40 μg/L and 124.60 μg/L. In some districts, the median UIC of pregnant and lactating women below the appropriate range. The iodized salt coverage rate of pregnant and lactating women in Tianjin was 76.12% and 77.40%, respectively. In pregnant and lactating women who did not actively supplement with iodine, the median UIC in those who consumed non-iodized salt were significantly lower than that in those who consumed iodized salt (139.26 μg/L and 154.40 μg/L, P = 0.044; 94.60 μg/L and 123.80 μg/L, P < 0.001). Compared with the low knowledge score group, pregnant women in the high knowledge score group had a higher proportion of iodized salt consumption (71.25% and 78.05%, P = 0.003), and pregnant and lactating women in the high knowledge score group had a higher proportion of actively supplement iodine (44.61% and 55.34%, P < 0.001; 39.26% and 49.78%, P < 0.001). Health education may be the main factor affecting the iodine related knowledge scores for pregnant and lactating women, with adjusted odds ratios (OR) and 95% confidence intervals (CI) of 2.89 (2.30, 3.62) and 2.46 (1.97, 3.07), respectively. Pregnant and lactating women are most expected to acquire knowledge through healthcare professionals (72.11%) and wechat/website (74.91%), respectively. CONCLUSIONS Pregnant and lactating women in some areas of Tianjin are at risk of iodine deficiency. Iodized salt consumption is an important way to ensure iodine nutrition of the population, and the lack of iodine related knowledge is an important factor affecting the consumption of iodized salt. Health education in different ways can be carried out for different people to improve the acceptance and efficiency of health education.
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Affiliation(s)
- Dandan Zhang
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, China
| | - Yang Wang
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, China
| | - Wenfeng Li
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, China
| | - Yani Duan
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, China
| | - Fang Li
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, China
| | - Yushan Cui
- Tianjin Centers for Disease Control and Prevention, 6 Huayue Road, Hedong District, Tianjin, 300011, China.
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Nie J, Zhu Y, Wang C, Lin Q, Tayier R, Cai Z, Ma P, Zhang L. Relationship between iodine knowledge and dietary iodine intake in pregnant and lactating women: a cross-sectional study. Public Health Nutr 2023; 26:1436-1450. [PMID: 36946300 PMCID: PMC10346033 DOI: 10.1017/s1368980023000514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 02/04/2023] [Accepted: 02/24/2023] [Indexed: 03/23/2023]
Abstract
OBJECTIVE This study assessed the iodine knowledge of pregnant and lactating women and the relationship to dietary iodine intake and iodine status. The factors influencing iodine intake were analysed. DESIGN Basic information and iodine knowledge were collected via a questionnaire. A FFQ assessed dietary iodine intake. The urinary iodine concentration (UIC) was measured using the arsenic-cerium catalytic spectrophotometric determination of iodine in urine (WS/T 107 -2016). SETTING A cross-sectional study involving pregnant and lactating women in Xinjiang, China was conducted. PARTICIPANTS A total of 1181 pregnant women and 504 lactating women were enrolled in the study. RESULTS The median UIC for pregnant and lactating women was 179·27 and 192·81 µg/l, respectively, and the dietary iodine intake was 407·16 and 356·89 µg/d, respectively. Of the pregnant and lactating women, 73·4 % and 82·5 % had medium iodine knowledge, respectively. In pregnant women, iodine knowledge and dietary iodine intake were positively correlated. High iodine knowledge and iodine education were shown to be protective factors for excessive iodine intake in pregnant women. CONCLUSION This study demonstrated that the iodine nutritional status of women in Xinjiang was appropriate, and iodine knowledge was at a medium level, but there was confusion about iodine nutrition. Public education is needed to improve iodine knowledge and active iodine supplementation awareness among these populations of women.
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Affiliation(s)
- Jiaoyang Nie
- School of Public Health, Xinjiang Medical University, Urumqi, People’s Republic of China
| | - Yuming Zhu
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Chenchen Wang
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Qin Lin
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Rishalaiti Tayier
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Zhuoxuan Cai
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Pinjiang Ma
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
| | - Ling Zhang
- Center for Disease Control and Prevention of Xinjiang Uygur Autonomous Region, Urumqi830002, People’s Republic of China
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Öztürk M. Is there a relationship between the urinary iodine of pregnant and diabetic patients? J Family Med Prim Care 2023; 12:1083-1086. [PMID: 37636175 PMCID: PMC10451571 DOI: 10.4103/jfmpc.jfmpc_270_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/27/2021] [Accepted: 12/05/2022] [Indexed: 08/29/2023] Open
Abstract
Objectives We investigated the iodine status in this study in pregnant women, diabetic women-men, and nondiabetic men-women living in our region. Methods A total of 385 cases who applied to the endocrine clinic between 2015 and 2020 were reviewed retrospectively. The gender, age, free T3 (pg/ml), free T4 (ng/dl), TSH (μIU/mL), anti-TPO antibody (IU/ml), anti-thyroglobulin antibody (IU/ml), and random urine iodine concentration (μg/L) levels of cases were recorded. The cases were grouped as pregnant, female, male, diabetic female, and diabetic male. Cases with overt thyroid disease, heart failure, liver failure, and kidney failure were excluded. Results There were 6.75% (n = 26) pregnant, 54.8% (n = 211) nondiabetic female patients, 18.9% (n = 73) diabetic female patients, 12.7% (n = 49) nondiabetic male, and 4.15% (n = 16) diabetic male patients. The random urinary iodine level was significantly higher in nondiabetic women (112.9 ± 77.21) and diabetic women (140.7 ± 97.8) than in pregnant women (77.8 ± 31.8) (P = 0.00 and P = 0.03). There was no significant relationship between random urine levels of pregnant women and nondiabetic men (104.1 ± 82.6) (P = 0.16). The random urinary iodine level was significantly higher in diabetic men (170.0 ± 112.1) than in pregnant women (P = 0.00). Conclusions In our region (xxx Region), pregnant women had iodine deficiency. The iodine level in men and women was very close to the lower limit. The urinary iodine level was higher in diabetic women and diabetic men than in both pregnant women and nondiabetic women and nondiabetic men. The results brought us the question: Could the high spot urinary iodine level in diabetic patients be a clue to nephropathy?
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Affiliation(s)
- Mine Öztürk
- Department of Endocrinology and Metabolism, KTO Karatay University Medicine Faculty Hospital, Konya, Turkey
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Liu X, Xiao Z, Cheng L, Jian L. Iodine nutrition level and thyroid function in pregnant women in the Yongchuan district of Chongqing. J Clin Transl Res 2022; 8:516-522. [PMID: 36452005 PMCID: PMC9706315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/29/2022] [Accepted: 09/13/2022] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND AND AIM This study aims to investigate thyroid function-associated parameters and the incidence of thyroid disorders in pregnant women, with the overarching aim to ensure that pregnant women do not develop said disorders due to aberrant iodine levels during the course of pregnancy. METHODS A total of 300 pregnant women who underwent routine check-ups at the Yongchuan Hospital Affiliated to Chongqing Medical University from January to December 2021 were enrolled. Venous blood and morning urine were collected. Serum thyroid-stimulating hormone (TSH), free thyroxine (FT4), and free triiodothyronine (FT3) were determined by chemiluminescence immunoassay. Urinary iodine concentration (UIC) was detected by arsenic cerium catalytic spectrophotometry. Thyroid disorders were extrapolated from the measured parameters. RESULTS The overall median UIC was 203 μg/L, which was within normal range. Subgroup analysis revealed that the median UIC in the first trimester was 187.5 μg/L, 211.8 μg/L in the second trimester, and 239.9 μg/L in the third trimester. However, based on the WHO criteria, 32%, 30%, and 18% of pregnant women were iodine deficient during their first, second, and third trimester, respectively. The proportion of women with iodine deficiency in the first and second trimesters was higher compared to the third trimester (P < 0.05). Serum FT3 and FT4 concentrations were higher in subjects in their first and second trimester versus the third trimester, while serum TSH levels were lower in subjects in their first and second trimester versus the third trimester (P < 0.05). The TSH concentration in subjects with inadequate iodine intake (UIC < 150 μg/L) was lower compared to subjects with adequate iodine intake (UIC 150 - 249 μg/L), but higher than in subjects with more than adequate intake (UIC 250 - 499 μg/L) and excess iodine intake (UIC ≥ 500 μg/L) (P < 0.05). TSH concentration and UIC were positively correlated (r = 0.1945, P = 0.0007), while no relationship was observed between UIC and FT3 and FT4 serum levels (r1 = -0.0593, P1 = 0.3053; r2 = -0.0149, P2 = 0.7968). There was no significant difference in FT3 and FT4 concentration between different UIC strata (P > 0.05). The incidence of thyroid disease during pregnancy in iodine-deficient women was greater compared to pregnant women with adequate iodine intake (P < 0.05) and higher in subjects in the more than adequate as well as excessive iodine intake cohorts (P < 0.05). CONCLUSION The iodine nutritional intake by pregnant women in Yongchuan District, Chongqing, was generally sufficient to meet developmental and metabolic needs. However, about a third of women in their first and second trimester exhibited iodine deficiency. Iodine deficiency was associated with an increased incidence of thyroid diseases. RELEVANCE FOR PATIENTS In clinical practice, the UIC of pregnant women should be measured during key stages in the pregnancy to prevent the manifestation of thyroid diseases.
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Affiliation(s)
- Xue Liu
- Department of Obstetrics, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
| | - Zhenghua Xiao
- Department of Obstetrics, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
| | - Lan Cheng
- Department of Obstetrics, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
| | - Luhong Jian
- Department of Obstetrics, Yongchuan Hospital of Chongqing Medical University, Chongqing 402160, China
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Prevalence of insufficient iodine intake in pregnancy worldwide: a systematic review and meta-analysis. Eur J Clin Nutr 2022; 76:703-715. [PMID: 34545212 DOI: 10.1038/s41430-021-01006-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 08/04/2021] [Accepted: 09/03/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND/OBJECTIVES Iodine deficiency in pregnant women is related to impaired foetal growth and development. The objective of this study was to estimate the prevalence of insufficient iodine intake in pregnant women from different regions of the world. SUBJECTS/METHODS Using the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, five electronic databases and Google Scholar grey literature were searched until 10 April 2021. Two reviewers independently conducted article selection, data extraction, and assessment of the risk of bias. Meta-analyses with random effects, subgroup analyses, and meta-regressions were performed. RESULTS In total, 4639 observational articles were found, with 61 eligible for inclusion. The population consisted of 163,021 pregnant women adults and adolescents, and the overall prevalence of insufficient iodine intake was 53% (95% confidence interval [CI]: 47-60; I2 = 99.8%). Pregnant women who live in insufficient iodine status country had a higher prevalence (86%; 95% CI: 78-93; I² =97.0%) of inadequate iodine nutritional status than to those living in country considered sufficient (51%; 95% IC: 45-57; I² = 99.8%). CONCLUSION Despite the progress in iodine fortification policies and periodic monitoring of the iodine nutritional status of the population worldwide, salt iodination alone may not be sufficient to provide adequate iodine status to pregnant women. Thus, other actions may be necessary to improve the nutritional clinical care of pregnant group.
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Wang T, Liu Y, Kong Q, Cao X, Liu Y, Xia S, Zheng T, Yu L. Effect of Moderate-to-Severe Iodine Deficiency in Early Pregnancy on Subclinical Hypothyroidism: A Longitudinal Study in an Iodine-Sufficient Region in China. Front Nutr 2022; 9:839651. [PMID: 35433796 PMCID: PMC9011046 DOI: 10.3389/fnut.2022.839651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveTo investigate iodine status among pregnant women in an iodine-sufficient region in China after the implementation of revised universal salt iodization (USI) standards in 2012 and assess the association between urinary iodine concentrations (UIC) in early pregnancy and the incidence of subclinical hypothyroidism (SCH) in euthyroid women negative for antithyroid Ab during different trimesters.MethodsWe measured the iodine status of 1,264 pregnant women, and performed follow-up assessment of thyroid function at 20 and 30 weeks of gestation among a cohort of 250 euthyroid women. We assessed the association of UIC in the 1st trimester with the incidence of SCH in subsequent trimesters. UIC and serum free triiodothyronine (FT3), free thyroxine (FT4), thyroid-stimulating hormone (TSH), thyroid peroxidase antibody (TPOAb), and thyroglobulin antibody (TgAb) were measured.ResultsThe median UIC was 135.95 μg/L among 1,264 women. Serum FT4 level was significantly higher in the group of UIC 150 to 249 μg/L compared with other UIC groups (P < 0.001). TSH was significantly higher in the UIC more than or equal to 250 μg/L group than the UIC 150 to 249 g/L group (P = 0.043). Of the 250 euthyroid women negative for antithyroid Ab (TSH value of 2.5–3.55 mU/L) in the 1st trimester, pregnant women with UIC lower than 100 μg/L in the 1st trimester exhibited a significantly increased risk of SCH (odds ratio [OR] = 2.47; 95% confidence interval [CI] = 1.22–5.71; P = 0.012, according to the Chinese Medical Association criteria; OR = 5.22, 95% CI = 1.73–6.09, P = 0.004, according to ATA criteria) during the latter half of pregnancy compared with the UIC 150 to 249 μg/L group.ConclusionModerate-to-severe iodine deficiency (UIC lower than 100 μg/L) in the 1st trimester was associated with a significantly higher risk of SCH during the 2nd or 3rd trimesters among euthyroid pregnant women who had negative for antithyroid Ab. Women with SCH during pregnancy require regular UIC tests to maintain appropriate iodine status.
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Affiliation(s)
- Taotao Wang
- Department of Endocrinology and Clinical Nutrition, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- *Correspondence: Taotao Wang
| | - Yanqiu Liu
- Department of Obstetrics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Qianqian Kong
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xiaoxia Cao
- Department of Obstetrics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yuzhou Liu
- Department of Obstetrics, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Song Xia
- Department of Endocrinology and Clinical Nutrition, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Tingting Zheng
- Department of Nuclear Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Li Yu
- Department of Endocrinology and Clinical Nutrition, Affiliated Hospital of Jiangsu University, Zhenjiang, China
- Li Yu
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Chen X, Wu C, Wang Z, Wu C, Guo Y, Zhu X, Hu YP, Shi Z, Song Q, Cui X, Su J, Zang J. Iodine nutrition status and thyroid autoimmunity during pregnancy: a cross-sectional study of 4635 pregnant women. Nutr J 2022; 21:7. [PMID: 35093086 PMCID: PMC8801104 DOI: 10.1186/s12937-022-00760-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 01/05/2022] [Indexed: 12/04/2022] Open
Abstract
Background Pregnant women in Shanghai have long been at risk for mild iodine deficiency. Because thyroid autoimmunity in pregnant women can lead to premature birth and miscarriage as well as neurodevelopmental deficits in the fetus, the aim of this study was to explore the association of iodine nutrition status with thyroid antibodies during pregnancy. Methods A pregnancy-birth cohort was conducted including 4635 pregnant women in Shanghai, China. The eligible participants underwent a face-to-face interview and completed questionnaire surveys to collect baseline information and diet intake. Spot urine samples were collected to test urine iodine. Thyroid antibodies including thyroid peroxidase antibodies (TPOAb), thyroglobulin antibodies (TgAb) and thyrotrophic antibodies (TRAb) were tested. Single-factor analysis and logistic regression were used to evaluate the association between iodine status and thyroid autoimmunity during pregnancy. Results The median urinary iodine excretion level in the sample was 138.14 μg/L (interquartile range [IQR] 80.90–219.00 μg/L). Among all the subjects, 25.9% consumed non-iodized salt, 54.5% had iodine deficiency, and 31.0% had thyroid autoimmunity. The proportion of patients with iodine deficiency was significantly higher among those who consumed non-iodized salt (36.9% vs. 33.1%; p = 0.04). After adjusting for age, educational status, former smoker status, former drinker status, first pregnancy, and previous thyroid disease, non-iodized salt (odds ratio [OR] = 1.394 [confidence interval, CI, 1.165–1.562]; p = 0.003), iodine-rich food (OR = 0.681 [CI 0.585–0.793]; p = 0.003), iodized nutritional supplements (OR = 0.427 [CI 0.347–0.526]; p = 0.003), were found to be individually associated with thyroid autoimmunity in all participants. The results of the multivariable restricted cubic spline regression analysis showed a non-linear relationship between the continuous change in iodine intake and thyroid autoimmunity (p = 0.019). Participants with iodine deficiency (urinary iodine concentration, UIC,< 100 μg/L) had an increased risk of testing positive for thyroid antibodies (TPOAb/TgAb/TRAb[+]; OR = 1.324 [CI 1.125–1.559]; p < 0.001). Moreover, this associated existed even after removing participants with previous thyroid disease. Conclusion Inadequate iodine nutrition in pregnant women is an independent risk factor for thyroid autoimmunity in Shanghai. It’s important to maintain the adequate iodine status in pregnant women.
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Wang Z, Wu Y, Shi Z, Song J, Wang G, Xu C, Song Q, Jin W, Cui X, Wu C, Zang J, Guo C. Association of iodine-related knowledge, attitudes and behaviours with urinary iodine excretion in pregnant women with mild iodine deficiency. J Hum Nutr Diet 2020; 34:314-323. [PMID: 33210387 DOI: 10.1111/jhn.12837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Subsequent to the implementation of the universal salt iodisation policy, China has all but eliminated the iodine deficiency disorders. However, pregnant women are still experiencing mild iodine deficiency. The present study explored factors that could relate to mild iodine deficiency in pregnant women. METHODS In total, 2400 pregnant women were enrolled using a multistage, stratified, random sampling method in Shanghai. Data were collected via a standardised questionnaire. The urine samples and household cooking salt samples were collected for the detection of urinary iodine and salt iodine concentrations. RESULTS The median urinary iodine concentration (MUIC) was 148.0 μg L-1 for all participants, and 155.0 μg L-1 , 151.0 μg L-1 and 139.6 μg L-1 in the first, second and third trimesters. The MUIC in the third trimester was significantly lower than that of the first trimester (P < 0.05). The usage rates of iodised salt and qualified-iodised salt were 71.5% and 59.4%, respectively. Iodine-related knowledge score composition ratio was significantly different between the high and low UIC groups (P < 0.05). Participants' MUIC increased significantly with the increases in iodine-related knowledge score (P < 0.001). The third trimester was a significant risk factor for high UIC, whereas high iodine-related knowledge score, actively learning dietary knowledge and having a habit of consuming iodine-rich food were significant protective factors for high UIC (P < 0.05). CONCLUSIONS Iodine level is adequate among pregnant women in Shanghai during the first and the second trimesters, although it is is insufficient in the third trimester. Good iodine-related knowledge, attitudes and behaviours are important for pregnant women with respect to maintaining adequate urinary iodine.
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Affiliation(s)
- Z Wang
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Y Wu
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Z Shi
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - J Song
- Laboratory for the Determination of Biological Markers, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - G Wang
- Laboratory for the Determination of Biological Markers, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - C Xu
- Traditional Chinese Medicine Department, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Song
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - W Jin
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - X Cui
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - C Wu
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - J Zang
- Division of Health Risk Factors Monitoring and Control, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - C Guo
- General Office, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
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