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Archives 2007
Myanmar Health Sciences Research Journal
Volume 19, Number 1
TITLE: Effect of chronic lead exposure on children of Yangon, Myanmar (2): physical growth and development
AUTHOR: Phyu Phyu Aung; Thandar Shwe; Theingi Thwin; Tin Khine Myint; Moh Moh Hlaing; Theingi Win Myat
SOURCE: Myanmar Health Sciences Research Journal. 2007; 19(1): 1-5
ABSTRACT: A cross-sectional comparative study was undertaken to explore the effect of chronic low-level lead exposure on the growth and development of children, 82 children in Yangon, who were chronically exposed to lead and 82 non-exposed children who were sex and age matched with the exposed subjects were studied. Blood lead was determined as the indicator for lead exposure. Mean blood lead levels in exposed children were 34.85 ± 9.99, 32.5 ± 18.23 and 36.44 ± 22.37 µg/dl for below 3 years, 3-6 years, and above 6 years age groups respectively while the corresponding values in the non-exposed children were 11.33 ± 8.55, 13.17 ± 8.9, and 15.03 ± 8.7 µg/dl. The differences were statistically significant (p<0.001 for all age groups). Percentage of children with height-for-age less than (-3SDs) of National Center for Health Statistics (NCHS) standard was found in 12% of the exposed children but none in the non-exposed ones. Percentage of children with weight-for-age below 3SDs was found in 10% of the exposed children but only 2% among the nonexposed group. Results from the Denver’s Developmental Screening Test showed that 23.5% of the exposed children were suspected of having developmental retardation while in the corresponding value in nonexposed children was 12.5%. Present study thus highlighted the detrimental effect of chronic low-level lead exposure on the growth and development of children.
SUBJECT HEADINGS: Environmental Exposure.Lead-analysis.
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