Health Remedies as a Source of Lead, Mercury, and Arsenic Exposure, New York City, 2010-2019.

Objectives. To describe the types of health remedies collected during poisoning investigations in New York City over a 10-year period that were found to contain high levels of lead, mercury, or arsenic. Methods. Between 2010 and 2019, the New York City Department of Health and Mental Hygiene collected 584 samples of health remedies during poisoning investigations and store surveys for lead, mercury, or arsenic analysis. Results. There was a significant association between blood lead levels and estimated cumulative daily lead exposures among adult users of rasa shastra Ayurvedic medications. Also, average blood lead levels among adult rasa shastra users were significantly higher than levels among those using other types of non-Ayurvedic health remedies. Conclusions. Rasa shastra Ayurvedic medications can contain very high levels of lead, mercury, and arsenic. This underscores the importance of screening for lead, mercury, and arsenic exposures within at-risk populations. Public Health Implications. The general ease of accessibility to rasa shastra medications raises concerns. There is a need for systemic change that results in primary prevention, that is, removal of the source through policy development and regulatory enforcement in the country of origin. (Am J Public Health. 2022;112(S7):S730-S740. https://doi.org/10.2105/AJPH.2022.306906).

Receipt of Early Intervention Services Before Age 3 Years and Performance on Third-Grade Standardized Tests Among Children Exposed to Lead.

IMPORTANCE: Research has shown that early intervention programs can improve academic outcomes of children with developmental delays. It has been suggested that similar programs may combat the deleterious effects of lead on children's neurodevelopment. However, to our knowledge, there are no published studies examining this possibility. OBJECTIVE: The objective of this study was to estimate the association between receipt of early intervention services and third-grade standardized test scores among children exposed to lead before age 3 years. DESIGN, SETTING, AND PARTICIPANTS: Cohort study including children born in New York City, New York, from 1994 to 1998 within an administrative data linkage of birth, lead monitoring, early intervention, and education data systems. Participants had a blood lead level of 4 µg/dL or greater at any point before age 3 years and later attended public school in New York City. EXPOSURES: Any use of early intervention services from birth through age 3 years. MAIN OUTCOMES AND MEASURES: Children who did or did not receive early intervention services were matched using propensity scores. Linear and log-binomial regression were used to estimate the association between receipt of early intervention services before age 3 years and standardized test scores in math and English-language arts in third grade. RESULTS: There were 2986 children exposed to lead who received early intervention services before age 36 months. Of these children, 2757 were propensity score-matched to 8160 children who did not receive services. Children who received early intervention services did 7% (95% CI, 3%-12%) of an SD better on math and 10% (95% CI, 5%-14%) of an SD better on English-language arts tests than children who did not receive services. In addition, children who received services were 14% (95% CI, 9%-19%) and 16% (95% CI, 9%-23%) more likely to meet test-based standards in math and English-language arts, respectively, than children who did not receive services. These associations became larger in magnitude when analyses were restricted to children with higher blood lead levels. CONCLUSIONS AND RELEVANCE: By leveraging existing public health data, this study found evidence that receipt of early intervention services may benefit the academic performance of children exposed to lead early in life.

A Spoonful of Lead: A 10-Year Look at Spices as a Potential Source of Lead Exposure.

CONTEXT: While lead-based paint and occupational lead hazards remain the primary sources of lead exposures among New York City's lead-poisoned children and men, respectively, these are not the only possible lead sources. Certain consumer products are often implicated. Between 2008 and 2017, the New York City Department of Health and Mental Hygiene tested more than 3000 samples of consumer products during lead poisoning case investigations and surveys of local stores, and of these, spices were the most frequently tested (almost 40% of the samples). OBJECTIVES: To describe spice samples-types, origin, lead concentrations, and the implication of findings for public health programs and global food safety regulations. DESIGN: Descriptive study of lead contamination in spices systematically collected as part of lead poisoning investigations. SETTING AND PARTICIPANTS: A total of 1496 samples of more than 50 spices from 41 countries were collected during investigations of lead poisoning cases among New York City children and adults and local store surveys. RESULTS: More than 50% of the spice samples had detectable lead, and more than 30% had lead concentrations greater than 2 ppm. Average lead content in the spices was significantly higher for spices purchased abroad than in the United States. The highest concentrations of lead were found in spices purchased in the countries Georgia, Bangladesh, Pakistan, Nepal, and Morocco. CONCLUSIONS: Certain commonly used spices, particularly those purchased abroad in Georgia, Bangladesh, Pakistan, Nepal, and Morocco, can have very high lead levels, which can contribute to lead body burden. This underscores the need to develop comprehensive interventions that educate consumers and initiate intergovernmental efforts for stricter global food regulations.

Linkage of traffic crash and hospitalization records with limited identifiers for enhanced public health surveillance.

BACKGROUND: Motor vehicle traffic (MVT) crashes kill or seriously injure approximately 4250 people in New York City (NYC) each year. Traditionally, NYC surveillance practices use hospitalization and crash data separately to monitor trends in MVT-related injuries, but key information linking crash circumstances to health outcomes is lost when analyzing these data sources in isolation. Our objective was to match crash reports to hospitalization records to create a traffic injury surveillance dataset that can be used to describe crash circumstances and related injury outcomes. The linkage of the two systems presents a unique challenge since the system tracking crashes and the system tracking hospitalizations and emergency department (ED) visits lack key identifying data such as names and dates of birth. METHODS: NYC Department of Transportation provided electronic records based on reports of motor vehicle crashes submitted to the New York State Department of Motor Vehicles for all crashes occurring in NYC from 2009 to 2013. New York Statewide Planning and Research Cooperative System (SPARCS) ED and hospitalization administrative data from NYC hospitals were used to identify unintentional MVT-related injuries using external cause of injury codes. Since the two systems do not share unique individual identifiers, probabilistic record linkage was conducted using LinkSolv9.0. Sensitivity/specificity calculations and chi-square analyses of linkage rates were conducted to assess linkage results. RESULTS: From 2009-2013, there were 1,054,344 individuals involved in MVT crashes in NYC and 280,340 ED visits and hospitalizations from MVT-related injuries. There were 145,003 linked pairs, giving a linkage rate of 52% of the total MVT-related hospital records. This linkage had a sensitivity of 74% and a specificity of 93%. Linkage rates were comparable by age, sex, crash role, collision type, hospital county, injury location, hospital type, and hospital status, indicating no apparent biases in the match by these variables. CONCLUSIONS: Performing a probabilistic linkage between MVT crash reports and hospitalization records is possible with a limited set of identifying variables. These linked data will inform traffic safety policies by providing new information on how crash circumstances translate to health outcomes.

Blood Lead Levels and Potential Risk Factors for Lead Exposures Among South Asians in New York City.

New York City's South Asian children and pregnant women have a disproportionate burden of elevated blood lead levels. This study is the first to investigate blood lead levels and risk factors for lead exposures among South Asian New Yorkers. A survey and a finger-stick blood lead test using a portable analyzer were administered to 230 South Asian adults and children. Blood lead levels of 5 µg/dL or higher were found in 20 % of the adults and 15 % of the children, as compared to 5 % of adults and 2.5 % of children citywide. Factors associated with elevated blood lead levels were recent repair work at home, not speaking English, Bangladeshi or Indian ethnicity, and occupational risk factors. Public health professional should be aware that South Asians may be at an increased risk for elevated blood lead levels.

The effect of lead-based paint hazard remediation on blood lead levels of lead poisoned children in New York City.

Despite the widespread use of lead paint hazard control for children with lead poisoning, few controlled studies that estimate the effect of such control on children's blood lead levels have been published. This retrospective follow-up study examined the effects of lead hazard remediation and its timing on the blood lead levels of lead-poisoned children. From the New York City child blood lead registry, 221 children were selected who had an initial blood lead level of 20-44 micro g/dL between 1 July 1994 and 31 December 1996; were 6 months to 6 years of age; had a report of a follow-up blood lead test between 10 and 14 months after the initial test; had a lead-based paint hazard identified in the primary dwelling unit prior to the 10- to 14-month follow-up blood lead test; had resided or spent time at only one address with an identified lead-based paint hazard; and were not chelated. The decline in geometric mean blood lead levels from baseline to 10-14 months later was compared for children whose homes were remediated and whose homes were not remediated during the follow-up period. Regardless of remediation, geometric mean blood lead levels declined significantly from 24.3 micro g/dL at the initial diagnosis to 12.3 micro g/dL at the 10- to 14-month follow-up blood lead test (P<0.01). Among the 146 children whose homes were remediated the geometric mean blood lead levels declined 53% compared to 41% among the 75 children whose homes were not remediated by the follow-up blood lead test, a remediation effect of approximately 20% (P<0.01). After adjusting for potential confounders, the remediation effect was 11%, although it was no longer significant. Race was the only factor that appeared to confound the relationship: Black children had higher follow-up blood lead levels even after controlling for other factors, including the natural logarithm of the initial blood lead level. The effect of remediation appeared to be stronger for younger (10 to <36 months old) than for older (36 to 72 months old) children (P=0.06). While children in homes with earlier remediation (within less than 3 months) appeared to have greater declines in blood lead levels at the follow-up test than children in homes with later remediation (after 3 or more months), this trend was not significant when controlling for confounding factors. The findings of this study suggest that early identification of lead-poisoned children and timely investigation and abatement of hazards contribute to reducing blood lead levels. However, the apparent effect is modest and further research is needed to systematically test and improve the effectiveness of lead hazard controls.