Elizabeth J. Short

Short-Term Cardiovascular Effects of Methylphenidate and Adderall

OBJECTIVE The primary purpose of this study was to examine the cardiovascular effects of Adderall (ADL) in a clinic-based group of youths with attention-deficit/hyperactivity disorder ranging in age from 4 to 17 years. METHOD One hundred thirty-seven patients were treated with either methylphenidate (MPH) or ADL. Youths prescribed MPH were given medication twice daily, and youths treated with ADL received medication once daily. Patients were evaluated under five conditions: baseline, placebo, 5 mg/dose, 10 mg/dose, or 15 mg/dose. Resting pulse, diastolic blood pressure, and systolic blood pressure were examined after 1 week at each treatment condition. Changes from baseline on these parameters were examined. RESULTS The short-term cardiovascular effects of both ADL and MPH were modest. No patients experienced any clinically significant change in these cardiovascular measures during the course of this brief trial. CONCLUSION Since the short-term cardiovascular effects of ADL appear minimal, specific cardiovascular monitoring during short-term ADL treatment at doses of 15 mg/day or less does not appear to be indicated. In addition, under similar conditions, using similar methods, both medication treatments led to changes in blood pressure and pulse that were clinically insignificant.

Developmental Differences in the Comprehension and Production of Narratives by Reading-Disabled and Normally Achieving Children.

Reading-disabled childrens language skills have long been implicated in their poor school performance. This study is a cross-sectional and longitudinal examination of the narrative language skills of both reading-disabled and normally achieving children in an attempt to understand more clearly the language processes involved in these skills and how these processes relate to reading achievement over time. Children were read scriptlike narratives and asked to demonstrate their knowledge of the story by a nonverbal enactment of the narrative. After perfect enactment of the story was assured, the children were asked to paraphrase the narratives. Results from both the cross-sectional and longitudinal study indicated that reading-disabled children comprehended the narratives in a comparable fashion to normal peers, but they performed more poorly on a variety of content and complexity measures derived from their paraphrases. The study indicates that reading-disabled childrens language problems are persistent over time in the area of verbally expressing information, even when they have demonstrated nonverbal comprehension.

Executive Functioning in Preschool‐Age Children Prenatally Exposed to Alcohol, Cocaine, and Marijuana

BACKGROUND Reports from clinical and experimental (animal) research converge on the suggestion that prenatal exposure to alcohol, cocaine, or marijuana undermines executive functioning (EF) and its neurological underpinnings. However, large, adequately controlled, prospective studies of alcohol and marijuana effects on EF have reported conflicting findings, and there have been no such studies of cocaine exposure. METHODS EF was investigated in a cohort (n = 316) of 4-year-old children the majority of whose mothers had used varying combinations of cocaine, alcohol, and marijuana during pregnancy. With use of postpartum maternal report and biological assay, children were assigned to overlapping prenatal cocaine-exposed, alcohol-exposed, and marijuana-exposed groups and to complementary control groups. The postnatal environmental assessment included measures of maternal intellectual and psychosocial functioning, current drug or alcohol use, and home environment. RESULTS The children in the alcohol-exposed group had worse tapping-inhibition performance than children in the non-alcohol-exposed group, and this effect persisted when potential confounding environmental variables, other drug variables, and concurrent verbal intelligence were controlled for. CONCLUSIONS Prenatal alcohol is predictive of decreased EF in early childhood that could not be attributed to environmental factors. The results are discussed in terms of the age and overall high-risk status of the children.

Children Prenatally Exposed to Cocaine: Developmental Outcomes and Environmental Risks at Seven Years of Age

ABSTRACT. Data are equivocal regarding the long-term consequences of prenatal exposure to cocaine on school-aged children. We compared 101 children exposed prenatally to cocaine with 130 unexposed children on measures of intelligence, visual motor, and motor abilities at age 7 years. Bivariate analyses revealed that cocaine-exposed children scored significantly lower than comparison children on the abbreviated Wechsler Intelligence Scale for Children-Third Edition Verbal and Full Scale IQ scores, the Visual Motor Integration and Motor Coordination standardized scores, and the Bruininks-Oseretsky Fine Motor Composite score. Regression analyses indicated that the biological mothers vocabulary and home environment assessed at the same 7-year visit were stronger predictors of developmental outcome than prenatal drug exposure. Level of cocaine exposure, however, predicted visual motor and motor skills. The results indicate that although prenatal cocaine exposure may confer some degree of developmental disadvantage in the visual motor domain, it frequently occurs in the context of an inadequate rearing environment, which may be a stronger determinant than prenatal cocaine exposure of childrens outcome.

Prenatal Cocaine Exposure: Drug and Environmental Effects at 9 years

OBJECTIVE To assess school-age cognitive and achievement outcomes in children with prenatal cocaine exposure, controlling for confounding drug and environmental factors. STUDY DESIGN At age 9 years, 371 children (192 cocaine exposure [CE]; 179 non-cocaine exposure [NCE]) were assessed for IQ and school achievement in a longitudinal, prospective study from birth. An extensive number of confounding variables were controlled, including quality of caregiving environment, polydrug exposure, blood lead level, iron-deficiency anemia (IDA), and foster/adoptive care. RESULTS Prenatal cocaine exposure predicted poorer perceptual reasoning IQ, with a linear relationship of the concentration of the cocaine metabolite benzoylecgonine to the degree of impairment. Effects were mediated through birth head circumference, indicating a relationship with fetal brain growth. Negative effects of alcohol, lead, and marijuana exposure and positive effects of the home environment were additive. The CE children in foster/adoptive care had better home environments and lower lead levels. School achievement was not affected. CONCLUSIONS Persistent teratologic effects of CE on specific cognitive functions and additive effects of alcohol, lead, and marijuana exposure; IDA; and the home environment were identified. Documenting environmental factors in behavioral teratology studies is important, because in this sample, CE was associated with better home environment and lower environmental risk in a substantial number of children.

Longitudinal Predictors of Maternal Stress and Coping After Very Low-Birth-Weight Birth

OBJECTIVE To determine longitudinal outcomes and contributors to parental stress and coping in mothers of very low-birth-weight (VLBW) children. DESIGN Prospective cohort follow-up of high-risk VLBW children (n = 113), low-risk VLBW children (n = 80), and term children (n = 122) and their mothers from birth to 14 years. SETTING Recruitment from level III neonatal intensive care and term nurseries in a large Midwestern region with follow-up at an academic medical center. PARTICIPANTS A total of 315 mother-infant dyads enrolled from November 8, 1989, to February 22, 1992. MAIN EXPOSURES High-risk VLBW infants had bronchopulmonary dysplasia. Comparison groups were demographically similar low-risk VLBW children (without bronchopulmonary dysplasia) and term children. MAIN OUTCOME MEASURES Child IQ and self-report measures of parenting stress, family impact, maternal coping, education, and social support. RESULTS After VLBW birth, mothers attained fewer additional years of education than term mothers (P = .04). Mothers of high-risk VLBW children felt more personal stress (P = .006) and family stress (P = .009) under conditions of low social support and had greater child-related stress than term mothers; however, they also expressed the highest levels of parenting satisfaction at 14 years. They became less likely to use denial (P = .02) and mental disengagement (P = .03) as coping mechanisms over time. Except for education attainment, mothers of low-risk VLBW infants did not differ from mothers of term children and at 14 years reported the lowest stress. CONCLUSIONS Parenting a VLBW child had both positive and negative outcomes, dependent on child medical risk, child IQ, social support, and maternal coping mechanisms, suggesting that mothers experience posttraumatic growth and resilience after significant distress post partum.

Speech and language outcomes of children with bronchopulmonary dysplasia

UNLABELLED A prospective follow-up of very low birth weight infants (VLBW) with (n = 89) and without (n = 71) bronchopulmonary dysplasia (BPD) and Term control children (n = 93) was conducted at 8 years of age. Groups were compared on measures of articulation, receptive and expressive language, verbal and performance IQ, oral motor skills and gross and fine motor skills. The BPD group demonstrated reduced articulation, receptive language skills, performance IQ, and overall gross and fine motor skills when compared to VLBW and Term groups. The BPD and VLBW groups did not differ on expressive language, oral motor skills, or verbal IQ. The groups also differed in enrollment in special classes and speech-language therapy, with almost half (48%) of the BPD group enrolled in speech-language therapy compared to 21% of the VLBW group, and 9% of the Term group. These results suggest that BPD may have adverse effects on speech development as well as on performance IQ, motor skills, and receptive language over and above the effects of VLBW. LEARNING OUTCOMES (1) As a result of this activity the reader will be able to describe what BPD is and how it impacts speech and language. (2) As a result of this activity the reader will be able to discuss how children with VLBW with BPD differ from children with VLBW without BPD in their developmental outcomes.

The effects of prenatal cocaine exposure on problem behavior in children 4-10 years

BACKGROUND Children prenatally exposed to cocaine may be at increased risk for behavioral problems due to disruptions of monaminergically regulated arousal systems and/or environmental conditions. OBJECTIVE To assess behavioral outcomes of cocaine (CE) and non-cocaine-exposed (NCE) children, 4 through 10 years old, controlling for other prenatal drug exposures and environmental factors. METHODS Low socioeconomic status (SES), primarily African American children (n=381 (193 (CE), 188 (NCE)) were recruited from birth. Generalized Estimating Equation (GEE) analyses were used to assess the predictive relationship of prenatal cocaine exposure to odds of caregiver reported clinically elevated behavioral problems at 4, 6, 9 and 10y ears of age, controlling for confounders. RESULTS Prenatal cocaine exposure was associated with increased rates of caregiver reported delinquency (OR=1.93, CI: 1.09-3.42, p<0.02). A significant prenatal cocaine exposure by sex interaction was found for delinquency indicating that only females were affected (OR=3.57, CI: 1.67-7.60, p<0.001). There was no effect of cocaine on increased odds of other CBCL subscales. Higher prenatal tobacco exposure was associated with increased odds of externalizing symptoms at 4, 9 and 10 years of age. For CE children, those in foster or adoptive care were rated as having more behavior problems than those in biologic mother or relative care. Greater caregiver psychological distress was associated with increased behavioral problems. There were no independent effects of elevated blood lead level on increased behavior problems after control for prenatal drug exposure and other environmental conditions. CONCLUSION Prenatal cocaine and tobacco exposure were associated with greater externalizing behavior after control for multiple prenatal drug exposures, other environmental and caregiving factors and lead exposure from 4 through 10 years of age. Greater caregiver psychological distress negatively affected caregiver ratings of all CBCL domains. Since cocaine and tobacco use during pregnancy and maternal psychological distress have the potential to be altered through prenatal educational, drug treatment and mental health interventions, they warrant attention in efforts to reduce rates of problem behaviors in children.

Prenatal Cocaine and Tobacco Effects on Children's Language Trajectories

OBJECTIVE. The objective of this study was to examine the effects of prenatal cocaine and polydrug exposure on language development of preschool children using a prospective longitudinal model, controlling for confounders. METHODS. Children who were exposed to cocaine in utero (n = 209) and nonexposed children (n = 189) were followed prospectively at birth and at 1, 2, 4, and 6 years of age and were compared on receptive, expressive, and total language scores across time using random coefficient models, controlling for confounders. RESULTS. A significant, stable effect of cocaine exposure on language development was observed over time for all language domains, with cocaine exposure related to poorer language performance. Cigarette exposure was related to lower receptive language scores. Environmental influences on language scores were also observed. Both the cocaine-exposed and nonexposed children declined in language performance over time. CONCLUSIONS. Prenatal cocaine exposure has a stable negative effect on language skills during the first 6 years of life. Both cocaine-exposed and nonexposed children showed decreased language growth over time; however, cocaine-exposed children demonstrated linguistic deficits compared with nonexposed peers and did not catch up. Cigarette and environmental influences were also noted.

Psychometric Properties of the Dominic Interactive Assessment: A Computerized Self-Report for Children.

The reliability and validity of the Dominic Interactive (DI) assessment were evaluated. The DI is a computerized self-report measure for children, which assesses symptom presence for seven DSM-IV diagnoses. The participants were 322 children (169 cocaine exposed, 153 noncocaine exposed) who were recruited at birth for a prospective longitudinal study. At 6 years of age, measures of self-report, parent report, and observational data were collected. Moderate to excellent internal consistencies on the DI were found for the total sample as well as for subsamples based on cocaine status and gender. Concurrent validity correlations between DI scales and the Child Behavior Checklist, Affect in Play Scale, a modified Connerss Teachers Rating Scale, and the Parenting Stress Index were examined. Significant relationships among scales were more apt to be among comparisons that assessed externalizing behaviors. Overall, low correlations were obtained, which are comparable to other studies that evaluate agreement between child and parent report of behaviors.