Sexually transmitted diseases, AIDS, and use/abuse of psychoactive substances in adolescence

OBJECTIVE: To discuss theoretical and practical aspects of sexually transmitted diseases, AIDS, and psychoactive substances in adolescence, focusing on a holistic and multiprofessional approach. METHODS: Review of national and international literature on concepts, classifications, social and cultural, clinical, therapeutic and preventive aspects of sexually transmitted diseases/AIDS, as well as the use of psychoactive substances, with the aim of pointing out problem-solving alternatives. RESULTS: Adolescents do not show resilient behavior and are vulnerable to environmental hazards. For this reason, preventive actions and intervention for the control of sexually transmitted diseases/AIDS and use or abuse of psychoactive substances among adolescents are a priority. According to the World Health Organization, one out of 20 adolescents acquires sexually transmitted disease in the world every year and, more than 7,000 are infected by HIV every day, totaling 2.6 millions a year. This scenario results from unprotected sex and from the interaction between sexually transmitted diseases and psychoactive substances, especially alcohol. CONCLUSIONS: It is crucial that health care providers consider magnitude, transcendence, vulnerability and feasibility as well as the set of interactions among substance, individual, and his/her social and cultural environment when the multifocal and holistic approach is used. This requires the formation of a support and protection network, involving the family, physicians, community, and adolescents. The major element in this network, though, are the adolescent themselves, who can overcome their conflicts, aiming at a healthy and longer life.     

Depressive symptoms in adolescents: associations with white matter volume and marijuana use

BACKGROUND: Depressed mood has been associated with decreased white matter and reduced hippocampal volumes. However, the relationship between brain structure and mood may be unique among adolescents who use marijuana heavily. The goal of this study was to examine the relationship between white matter and hippocampal volumes and depressive symptoms among adolescent marijuana users and controls. METHODS: Data were collected from marijuana users (n = 16) and demographically similar controls (n = 16) aged 16-18. Extensive exclusionary criteria included psychiatric and neurologic disorders, including major depression. Substance use, mood, and anatomical measures were collected after 28 days of monitored abstinence. RESULTS: Marijuana (MJ) users demonstrated more depressive symptoms than controls (p < .05). MJ use (beta = .42, p < .005) and smaller white matter volume (beta = -.34, p < .03) each predicted higher levels of depressive symptoms on the Hamilton Depression Rating Scale. MJ use interacted with white matter volume (beta = -.55, p < .03) in predicting depression scores on the Beck Depression Inventory: among MJ users, but not controls, white matter volume was negatively associated with depressive symptoms. CONCLUSIONS: Marijuana use and white matter volume were additive and interactive in predicting depressive symptoms among adolescents. Subtle neurodevelopmental white matter abnormalities may disrupt the connections between areas involved in mood regulation.     

Use of psychotropic agents in preschool children: associated symptoms,diagnoses, and health care services in a health maintenance organization

BACKGROUND: Recent pharmacoepidemiological reports have contributed to concerns about frequent and perhaps indiscriminate psychopharmacotherapy for very young children. OBJECTIVE: To examine the diagnoses, symptoms, and health care services associated with preschool children receiving psychotropic medication. DESIGN: Population-based pharmacoepidemiological analysis of electronic medical records, paper medical and mental health charts, and pharmacy records from 1997 and 1998. SETTING: A large Pacific Northwest health maintenance organization. PARTICIPANTS: Preschool children receiving psychotropic medication (psychostimulants, antidepressants, neuroleptics, or alpha(2)-adrenergic agonists). MEASURES: Physician-reported mental health diagnoses and related symptoms, functional impairment, family and participant characteristics, and the types and level of associated medical and mental health services. RESULTS: Of 743 preschool children who clinicians identified as having behavioral or emotional problems, 120 (16%) received psychotropic medication; 57 children (48%) were prescribed a stimulant medication only, and 60 (50%) received a diagnosis of attention-deficit/hyperactivity disorder. Most children had substantial psychosocial risk factors, including parents with psychiatric or substance abuse problems (71%; n = 85), documented histories of abuse (29%; n = 35), and out-of-home placement (31%; n = 37). Four of 5 children or families (83%; n = 99) received psychosocial services in addition to pharmacotherapy. On average, children received psychotropic medication at least 6 months after initial identification of a behavioral or mental health problem. CONCLUSIONS: Despite commentary by the popular media about widespread psychopharmacotherapy for very young children, such treatment was only infrequently received in this health plan. Most children receiving psychopharmacotherapy had substantial additional risk factors and were receiving psychosocial services for mental health or behavioral management.     

A comparison of health care experiences for medicaid and commercially enrolled children in a large, nonprofit health maintenance organization.

BACKGROUND: Proponents of Medicaid managed care have argued that this type of care offers the potential to provide mainstream health care for poor children and the elimination of the 2-tier system of care that has long existed for poor and nonpoor children. However, few studies have attempted to assess whether differences in access, utilization, and satisfaction exist between Medicaid and commercially sponsored children who are enrolled in the same managed care plan. OBJECTIVE: To systematically answer the following research question: Within the same large, nonprofit, group-model health maintenance organization (HMO), how do children enrolled in Medicaid compare with children enrolled commercially across the domains of access, utilization, and satisfaction with care? METHODS: We compared access, satisfaction, and utilization of services between Medicaid and commercially sponsored children enrolled in Kaiser Permanente of Northern California during 1998 through use of a telephone survey and administrative data. Kaiser Permanente is a nonprofit, integrated, group HMO that serves 2.8 million members in more than 15 counties in northern California. The sample for this survey included 510 Medicaid-enrolled children and 512 commercially enrolled children. An overall response rate of 82% was achieved. Bivariate and multivariate analyses were used to compare Medicaid and commercially enrolled children. RESULTS: We found few differences between commercial and Medicaid enrollees across the domains of access, utilization, and satisfaction. Where access differences were present (problems in finding a personal care provider, problems getting care overall, and experiencing 1 or more barriers to care), the differences favored Medicaid-enrolled children. That is, Medicaid enrollees were reported to experience significantly fewer access problems and barriers than commercial enrollees, even after adjustment for confounding factors. Only one difference was found between Medicaid and commercial enrollees across the 6 utilization variables examined (volume of emergency department visits), and no differences were found among the 4 satisfaction and 2 global assessments of care received. Taken together, our results suggest that Medicaid-enrolled children experience as good as or better care than their commercially enrolled counterparts. However, there are other possible explanations for our findings. It may be that families of Medicaid-enrolled children hold their care providers to a lower standard than families of commercially enrolled children, given historic inequities in care between poor and nonpoor families. In addition, some degree of selection bias may be present in our sample, although that is true for both the Medicaid and commercial populations. CONCLUSIONS: Our findings suggest that large commercial HMOs are capable of eliminating the access barriers and stigma traditionally associated with the Medicaid program. However, this conclusion must be tempered with the knowledge that other explanations for our findings may also be at play.     

Psychosocial morbidity: the economic burden in a pediatric health maintenance organization sample

OBJECTIVES: To evaluate psychosocial morbidity in pediatric primary care and to determine displaced health care utilization. DESIGN AND SETTING: A cross-sectional sample of parent-child dyads was screened using the Pediatric Symptom Checklist (PSC) at 6 pediatric sites of a health maintenance organization (HMO). Cost and utilization data were retrieved from regional databases for this sample. PARTICIPANTS: Parent-child dyads from an HMO in northern California (N = 1840). The children ranged in age from 2 to 18 years. RESULTS: In all, 13.0% of children exhibited psychosocial dysfunction. The rate of children's chronic illness was 18.4%. Multiple regression analyses measured utilization and cost of health and psychiatric care for the selected population for the previous year; the average log cost of health care per child was $393. The average health care cost for children with anxious, depressed symptoms was $805. Chronically ill children were the highest utilizers of health care, with an average log cost of $1138. When psychosocial dysfunction was present, regression models showed that health care spending was highest for young children. CONCLUSIONS: Health care utilization was higher for children with psychosocial morbidity, was higher among younger children, and decreased with age as psychiatric costs progressively increased.     

Prediction and prevention of extreme neonatal hyperbilirubinemia in a mature health maintenance organization

OBJECTIVE: To investigate biological and health services predictors of extreme neonatal hyperbilirubinemia in a health maintenance organization. DESIGN: Nested case-control study. SETTING: Eleven Northern California Kaiser Permanente hospitals. SUBJECTS: The cohort consisted of 51,387 newborns born at 36 weeks or later weighing 2000 g or more. Cases were newborns with peak total serum bilirubin levels greater than or equal to 428 micromol/L (> or =25 mg/dL) (n = 73). Controls were a random sample of newborns from the cohort with peak bilirubin levels less than 428 micromol/L (<25 mg/dL) (n = 423). MEASUREMENTS: Review of medical records and telephone interviews. RESULTS: Early jaundice was most strongly associated with case status (odds ratio [OR] = 7.3). After excluding subjects with early jaundice, the strongest predictors of hyperbilirubinemia were family history of jaundice in a newborn (OR = 6.0), exclusive breastfeeding (OR = 5.7), bruising (OR = 4.0), Asian race (OR = 3.5), cephalhematoma (OR = 3.3), maternal age of 25 years or older (OR = 3.1), and lower gestational age (OR = 0.6/week). These variables identified 61% of newborns as very low risk (about 1/4200). However, the risk in the remaining 39% was still low (1/370). More cases (79%) than controls (59%) had newborn length-of-stay and follow-up consistent with the American Academy of Pediatrics guidelines, but phototherapy use within 8 hours of the time that the guidelines recommend was uncommon in both cases (26%) and controls (33%). There were no apparent cases of kernicterus. CONCLUSIONS: Prevention of extreme hyperbilirubinemia may require closer follow-up than is currently recommended by the American Academy of Pediatrics and more use of phototherapy than was observed in this study. To prevent extreme hyperbilirubinemia (> or =428 micromol/L [> or =25 mg/dL]) in 1 newborn, many newborns would need to receive these interventions.     

Effects of removing gatekeeping on specialist utilization by children in a health maintenance organization

BACKGROUND: The "gatekeeping" model of access to specialty care has been an essential managed care tool, intended to control costs of care and promote coordination between generalists and specialists. OBJECTIVE: To investigate the impact of removing gatekeeping on specialist utilization. METHODS: A capitated multispecialty group discontinued a gatekeeping system on April 1, 1998. We assessed the overall number and distribution of patient visits to primary care physicians and specialists and initial patient visits to specialists before and after the removal of gatekeeping. We performed focused analyses for specific specialties, children with chronic conditions, and children with specific diagnoses. RESULTS: Elimination of gatekeeping was not associated with changes in the mean number of visits to specialists (0.28 visits per 6 months before and after gatekeeping was removed) or the percentage of all child visits to specialists (11.6% vs 12.1%; 95% confidence interval, 11.3%-11.9% vs 11.8%-12.4%). The proportion of all specialist visits that were initial consultations increased after gatekeeping was removed, from 30.6% (95% CI, 29.4%-31.8%) to 34.8% (95% CI, 33.6%-36.1%). Visits to any specialist by children with chronic conditions increased from 18.6% (95% CI, 17.7%-19.1%) to 19.8% (95% CI, 19.0%-20.7%). New patient visits to specialists by children with chronic conditions as a proportion of all specialist visits increased from 28.1% (95% CI, 25.9%-30.2%) to 32.3% (95% CI, 30.1%-34.5%). CONCLUSIONS: Replacing a gatekeeping system with open access to all specialty physicians in a managed care organization resulted in minimal changes on the utilization of specialists. Visits to specialists by children with chronic conditions increased after the removal of gatekeeping.     

Prevention and intervention of sexually transmitted diseases in adolescents.

Adolescents are the age group at greatest risk for acquiring sexually transmitted diseases. Sexually transmitted disease intervention programs based on behavioral change theories that emphasize self-efficacy and motivational enhancement may provide adolescents with skills to change risk behavior patterns. School-based sexually transmitted disease programs can reach the majority of the at-risk adolescent population. Community-based programs attempt to change community norms for a targeted high-risk population and are particularly helpful in reaching adolescents who are not in school. Finally, clinic-based interventions serve adolescents seeking health care, not only encouraging abstinence and safer sex practices for prevention of sexually transmitted disease but also providing opportunities for early detection and treatment. All three have their advantages, but each may neglect a significant portion of the population at risk. Development of structured sexually transmitted disease intervention programs utilizing school, community, and clinic settings merits further study.