An investigation of normal urinary manganese value in healthy adults in different places in Guangxi, China
10.3760/cma.j.issn.1001-9391.2017.10.007
- VernacularTitle: 广西不同地区健康成人尿锰正常值调查
- Author:
Limei QIN
1
;
Rongjuan LI
;
Panliang NING
;
Yan LI
;
Xiaoping LI
Author Information
1. Guangxi Occupational Disease Prevention Research Institute, Nanning 530021, China
- Publication Type:Case Reports
- Keywords:
Guangxi;
Urine;
Manganese;
Normal value
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2017;35(10):745-747
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the normal urinary manganese value in healthy adults in Guangxi, China and its distribution characteristics.
Methods:From 2015 to 2016, stratified random sampling based on age and sex was performed to select 1533 healthy adults aged 18-60 years in Nanning,Liuzhou,Guilin,Hezhou,Wuzhou,Yulin,Guigang,Beihai,Qinzhou,Laibin,Hechi Nandan,Bose Jingxi,Chongzuo Daxin,and Fangchenggang.All of them had no history of occupational manganese exposure or acute or chronic liver/renal diseases and had lived in the local area for more than one year. A total of 1417 urine samples with normal specific gravity and complete data were obtained, and graphite furnace atomic absorption spectrometry was used to measure urinary manganese.The distribution characteristics of urinary manganese level were analyzed among adults with different ages,sexes,or presence or absence of smoking habits or among those who lived or did not live in the mining area.
Results:The geometric mean of urinary manganese among healthy adults in Guangxi was 0.52 μg/L,and the upper limit of normal was 5.68μg/L. There was no significant difference in urinary manganese level between the healthy adults with different ages, sexes,or presence or absence of smoking habits (P>0.05).The healthy adults who lived in the mining area of nonferrous metal mines had a significantly higher geometric mean of urinary manganese than those who did not live in such areas(1.65μg/Lvs0.34μg/L,P<0.01).
Conclusion:The upper limit of normal of urinary manganese is 5.68 μg/L among healthy adults in Guangxi,and the healthy adults who live in the mining area of manganese mine or nonferrous metal mines have a significantly higher urinary manganese level than those who do not live in such areas.
