Lodine nutrition level and ultrasonic manifestations of thyroid in forest and non-forest residents of Heilongjiang province
10.13929/j.issn.1003-3289.2020.08.014
- VernacularTitle: 黑龙江省林区与非林区居民碘营养水平及甲状腺超声表现
- Author:
Qian LYU
1
Author Information
1. Department of Ultrasound, The Fourth Affiliated Hospital of Harbin Medical University
- Publication Type:Journal Article
- Keywords:
Forest region;
Iodine;
Thyroid gland;
Ultrasonography
- From:
Chinese Journal of Medical Imaging Technology
2020;36(8):1183-1186
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To observe the iodine nutrition level and ultrasonic manifestations of thyroid in forest and non-forest land residents of Heilongjiang province. Methods: Using random sampling method, 3 645 residents form 13 forests and 17 non-forests sites were selected and divided into 5 groups according to ages, i.e. group A (20-30 years), B (31-40 years), C (41-50 years), D (51-60 years) and E (61-70 years), and the ratio of male and female in each group was 1:1. Then all objects underwent thyroid ultrasound and urinary iodine. Results: ①The median urinary iodine of forest residents was lower than non-forest residents (P<0.05). In group B, C, D and E, the median urinary iodine of forest residents were all lower than non-forest (all P<0.05). ②Along with the age growth, thyroid structure abnormal rate increased in both forest and non-forest residents (all P<0.05). The abnormal thyroid structure rate of forest residents was higher than that of non-forest residents (P<0.05). There was no statistical difference of the number of residents with abnormal ultrasonic manifestations between forest and non-forest residents (P>0.05). Thyroid structure abnormal rate of group D and E in forest residents were both higher than those in non-forest (both P<0.05). ③The urine iodine median in forest residents with ultrasonic abnormal thyroid was lower than in non-forest (P<0.05), while in forest residents in group D and E were both lower than non-forest (both P<0.05). Conclusion: The rate of thyroid structure abnormality increased with aging in both forest and non-forest residents of Heilongjiang province, the thyroid structure abnormal rate in middle-aged and elderly forest residents was higher, whereas the urine iodine median was lower than non-forest. Iodine nutritional status were at adequate levels in forest and non-forest 20-29 years old residents, while at appropriate levels in all other ages. The urine iodine content in forest residents were lower than that in non-forest of the same ages.
