Faculty Bibliography

The Boston Lead-In-Soil Demonstration Project was a randomized environmental intervention study of the impact of urban soil lead abatement on children's blood lead levels. Lead-contaminated soil abatement was associated with a modest reduction in children's blood lead levels in both phases of the project; however, the reduction in Phase II was somewhat greater than that in Phase I. The combined results from both phases suggest that a soil lead reduction of 2060 ppm is associated with a 2.25 to 2.70 micrograms/dl decline in blood lead levels. Low levels of soil recontamination 1 to 2 years following abatement indicate that the intervention is persistent, at least over the short-term. Furthermore, the intervention appears to benefit most children since no measurable differences in efficacy were observed for starting blood and soil lead level, race, neighborhood, gender, and many other characteristics. However, soil abatement did appear to be more beneficial to children in the higher socioeconomic classes, with low baseline ferritin levels, and who spent time away from home on a regular basis and lived in nonowner occupied housing, and with adults who had lead-related hobbies and almost always washed their hands before meals. Children who lived in apartments with consistently elevated floor dust lead loading levels derived almost no benefit from the soil abatement. It was not possible to separate the effects of the variables that had a beneficial impact on efficacy because they were closely correlated and the number of subjects was small. We recommend that further research be conducted to identify subgroups of children to whom soil lead abatement might be targeted

OBJECTIVE: To determine whether the 1991 Centers for Disease Control and Prevention lead poisoning prevention guidelines for biannual screening and retesting are feasible among a high-risk population. METHODS: For 632 urban high-risk children aged 9 to 25 months who used a pediatric primary care center between 1989 and 1991, we assessed physician screening practices and the need to increase utilization to meet guidelines for retesting. Analysis also focused on missed opportunities for lead screening. For 425 urban high-risk children who were long-term utilizers of the center, we assessed the need to increase utilization to meet guidelines for biannual screening. RESULTS: Screening was not up to date in 55%, 34%, and 29% of children at ages 9 to 13 months, 14 to 19 months, and 20 to 25 months, respectively. These children had a mean of 2.3, 2.5, and 2.3 missed opportunities during each age period. Among children who had made well-child visits, in 41%, 36%, and 28% of children screening was not up to date at each age period. Between ages 13 and 37 months, 42% of long-term clinic utilizers made sufficient visits to achieve biannual screening. Sixty-five percent of children who were screened made a subsequent visit within 2 to 5 months, at which time retesting could have been performed. CONCLUSIONS: At this primary care center, many high-risk children, including those who had made well-child visits, were not appropriately screened for lead toxic effects. Children not screened had many missed opportunities at all types of visits, including well-child visits. Many children visited frequently enough to achieve biannual screening and retesting without increased numbers of visits if non-well-child visits had been used as opportunities for retesting

A survey was conducted at a 526-bed community hospital in Rochester, New York, to determine the prevalence of formula advertising and distribution during pregnancy to 136 consecutive intrapartum patients. Women answered a questionnaire about their choice of infant feeding methods and prenatal exposure to formula advertising. Of those who received printed information on infant feeding, 78 percent reported that it was published by a formula company, and 65 percent recalled receiving offers for free formula during their pregnancy. The likelihood of having received such offers was the same in women who planned to breastfeed as in those who planned to formula feed. Thirty-eight percent of women obtained formula through a free offer before their infant's birth. Women who were privately cared for were more likely to have received offers for free formula (p < 0.001) than were women cared for in hospital-affiliated clinics. Ninety percent of women who received free formula prenatally reported their prenatal caregiver as a source of samples. Of samples that women obtained prenatally, 93 percent were from companies that advertise only indirectly through hospitals and physicians, whereas 7 percent were from companies that advertise directly to patients. The prevalence of formula company advertising during the prenatal care of women who deliver in this hospital is high. The continued participation of prenatal caregivers in promotion efforts of formula companies provides a negative or mixed message about the importance of breastfeeding and may be a barrier to its success

BACKGROUND. Despite increasing concerns regarding school readiness, little is known about child health correlates of early school failure among the general child population. The results of this study, conducted to investigate health and social factors associated with early grade retention in a nationally representative sample of children in the United States, are reported here. DESIGN. Analyses of data derived from interviews with parents of 9996 children ages 7 to 17 years who participated in the Child Health Supplement to the 1988 National Health Interview Survey. MAIN OUTCOME MEASURES. History of repeating kindergarten or first grade. RESULTS. Nationally, 7.6% of children repeated kindergarten or first grade. In a logistic regression model, factors independently associated with increased risk of grade retention were: poverty [Odds Ratio (OR) 1.7, 95% confidence interval (CI) 1.4, 2.1], male gender (OR 1.5, CI 1.3, 1.9), low maternal education (OR 1.4, CI 1.1, 1.8); deafness (OR 1.9, CI 1.4, 2.6), speech defects (OR 1.7, CI 1.1, 2.6), low birth weight (OR 1.6, CI 1.2, 2.2), enuresis (OR 1.6, CI 1.1, 2.2), and exposure to household smoking (OR 1.4, CI 1.1, 1.7). High maternal education (OR 0.6 CI 0.4, 0.9) and residence with both biological parents at age 6 years (OR 0.7, CI 0.6, 0.9) were independently associated with a decreased risk of retention. Recurrent otitis media, black race, and low maternal age, although associated with early grade retention in bivariate analyses, were not independently associated with grade retention in a model that controls for these other factors and for the age cohort of the child. Although omitted from the above predictive model because of uncertainty about its temporal relation to early grade retention in this dataset, behavior problems at the time of interview have a strong independent association (OR 1.9, CI 1.5, 2.5) with prior early retention. CONCLUSIONS. This is the first study that uses national data to investigate how health and social factors individually and collectively contribute to early grade retention. It demonstrates that early retention is common, that a number of extremely common child health problems are independently associated with it, and that the magnitude of the heightened risk associated with these problems is similar to that of many of the well-recognized and difficult to change family and social risk factors for early retention. The successful implementations of Pub L 99-457 (The Education for All Handicapped Children Act Amendments of 1986) services in communities nationwide, and the improvement in the educational performance of large numbers of children will be facilitated by pediatricians' advocacy and surveillance for problems that place children at risk for educational failure, and by effective referral to and collaboration with nonpediatric child and family services

BACKGROUND. The Centers for Disease Control and Prevention (CDC) has recommended using a five-item questionnaire at every regular office visit for all children 6 to 72 months of age to identify those at risk of high-dose exposure to lead. OBJECTIVE: To determine how well the questionnaire identifies children with elevated lead levels. RESEARCH DESIGN. Comparison of results of the questionnaire, which is intended to identify children as being low-risk or high-risk for lead poisoning, with children's blood lead levels. SETTING. A pediatric continuity clinic located in a major teaching hospital in Rochester, NY. PATIENTS. A consecutive sample of 476 children aged 6 to 72 months without a prior history of lead poisoning who were seen in the clinic in July and August 1992, and (for those aged < 36 months) or 12 months (for those aged 36 to 72 months). MEASUREMENTS AND MAIN RESULTS. Fingerstick lead samples were obtained from all children, and those > or = 15 micrograms/dL (0.72 mumol/L) were confirmed by subsequent venous lead determinations. Twenty-eight percent had blood lead levels > or = 10 micrograms/dL (0.48 mumol/L), 8% had levels > or = 15 micrograms/dL (0.72 mumol/L), and 5% had lead levels > or = 20 micrograms/dL (0.96 mumol/L). According to responses on the questionnaire, 44% were initially classified as low-risk, and 43% were high-risk. In 13% risk could not be determined because one or more items on the questionnaire had not been answered or were answered equivocally, whereas all other items were answered 'No.' Children for whom risk could not be determined were presumed to be at high risk and were added to that category, resulting in 56% of the study population so designated. The questionnaire was moderately effective in identifying children with elevated lead levels. Seventy percent of children having lead levels > or = 10 micrograms/dL (0.48 mumol/L) and 82% of children having lead levels > or = 15 micrograms/dL (0.72 mumol/L) had been classified as high-risk by the questionnaire. Children classified as low-risk were very unlikely to have elevated lead levels. Eighty-one percent of low-risk children had lead levels < 10 ug/dL, and 97% had lead levels < 15 ul/dL. An abbreviated questionnaire using only the first three items from the CDC questionnaire had almost identical effectiveness. CONCLUSIONS. In this clinical setting, in which children are largely urban, poor, and have a moderate to high risk of developing elevated lead levels, the CDC risk assessment questionnaire is effective in identifying children with elevated lead burdens. However, an abbreviated version of the questionnaire may be as effective as the complete questionnaire. Additional questions should be added to the questionnaire to improve its overall sensitivity, and the questionnaire should be tested in other settings to see if it is effective with children having different environmental exposures to lead