||Blood Lead, Hearing Thresholds, and Neurobehavioral Development in Children and Youth (Journal Version).
Schwartz, J. ;
Otto, D. ;
||Health Effects Research Lab., Research Triangle Park, NC.
Blood analysis ;
Public health ;
United States ;
Health survey ;
Health statistics ;
Developmental disabilities ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||NHANES II audiometry data were used to confirm a previously observed link between blood lead (PbB) level and hearing threshold. Other indicators of neurological development, such as age at which a child first sat up, walked, and spoke, and the presence of speech difficulties and hyperactivity were also examined to determine if they were significantly related to lead exposure. The probability of elevated hearing thresholds at 500, 1000, 2000 and 4000 Hz increased significantly (P<0.0001) with increasing PbB for both ears. PbB levels were also significantly related to delays in the age at which children first sat up, walked, and spoke and to the probability that a child was hyperactive. Lead was not related to the probability of a child having a previously diagnosed speech impairment.
||Pub. in Archives of Environmental Health, v42 n2 p153-160 1987.
|NTIS Title Notes
||Reprint: Blood Lead, Hearing Thresholds, and Neurobehavioral Development in Children and Youth (Journal Version).
||44C; 44G; 57U; 68G
||PC A03/MF A01