Osteomyelitis Due to Mycobacterium goodii in an Adolescent, United States.
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ABSTRACT:
SUBMITTER: Diaz A
PROVIDER: S-EPMC7588509 | biostudies-literature |
REPOSITORIES: biostudies-literature
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Project description:Mycobacterium bovis is naturally resistant to the antituberculosis drug pyrazinamide (PZA). To determine whether all Mycobacterium tuberculosis complex isolates demonstrating PZA monoresistance were truly M. bovis, we examined the phenotype and genotype of isolates reported as PZA monoresistant in five counties in California from January 1996 through June 1999. Isolates reported by local laboratories to be PZA monoresistant were sent to the state reference laboratory for repeat susceptibility testing using the BACTEC radiometric method and to the Centers for Disease Control and Prevention for pncA sequencing and PCR-restriction fragment length polymorphism (RFLP) analysis of the oxyR gene. Of 1,916 isolates, 14 were reported as PZA monoresistant and 11 were available for retesting. On repeat testing, 6 of the 11 isolates were identified as PZA-susceptible M. tuberculosis, 1 was identified as PZA-monoresistant M. bovis, and 1 was identified as M. bovis BCG. The three remaining isolates were identified as PZA-monoresistant M. tuberculosis. Sequencing of the pncA and oxyR genes genotypically confirmed the two M. bovis and the six susceptible M. tuberculosis species. Each of the three PZA-monoresistant M. tuberculosis isolates had different, previously unreported, pncA gene mutations: a 24-bp deletion in frame after codon 88, a base substitution at codon 104 (Ser104Cys), and a base substitution at codon 90 (Ile90Ser). This study demonstrates that PZA monoresistance is not an absolute marker of M. bovis species but may also occur in M. tuberculosis, associated with a number of different mutational events in the pncA gene. It is the first report of PZA-monoresistant M. tuberculosis in the United States.
| S-EPMC87792 | biostudies-literature
Project description:Parent-child sexual health communication has been shown to protect against adolescent sexual risk-taking behavior. Parent knowledge of adolescent sexual experience can inform timing and content of conversations; however, little is known about factors associated with such knowledge. To investigate this question, parent-child dyads (N = 942) from a U.S. nationally-representative internet panel were surveyed in June 2012. Agreement between adolescent report of vaginal sex and parent's knowledge of such behavior was assessed. Multivariate regression was used to assess predictors of accurate parental knowledge of adolescent sex. Most parents (87%) reported knowledge of their adolescents' sexual experience. Parents with accurate knowledge of adolescent sexual experience were more likely to report at least one prior conversation with their child about sexual health (OR 2.35), have a daughter (OR 1.88), and have a child who expressed comfort discussing sexual health (OR 1.71). Results indicate that parental knowledge of adolescent sexual experience reflects more comfortable parent-child sexual health communication. Developing tools to improve adolescent comfort discussing sexuality may improve parent-child conversations about sexuality, contributing to efforts to increase safer sex practices among adolescents.
| S-EPMC5338902 | biostudies-other
Project description:ImportanceAdolescent access to firearms increases their risk of firearm injury.ObjectiveTo examine adolescent firearm access in homes with guns, how storage may modify access, and discordance between parent and adolescent report of access.Design, setting, and participantsThis survey study used data on parents and their adolescent children from a nationally representative online survey of adults in gun-owning households, conducted from June 30 to August 11, 2019. Individuals who owned firearms and parents of adolescents were oversampled. All parents living with a child aged 13 to 17 years were invited to have their child participate in a separate survey. Respondents with more than 1 adolescent living with them were asked to choose the child with the most recent birthday. Analyses were conducted from June 1, 2020, to January 4, 2021.Main outcomes and measuresFirearm access was assessed by asking adolescents how long it would take to access a loaded gun in their home. Parents were asked whether their child could independently access a household firearm. Individuals who owned guns reported firearm storage practices. Study-specific poststratification weights adjusted for survey nonresponse and undercoverage or overcoverage resulting from the study-specific sample design and for benchmark demographic distributions.ResultsOf 6721 adults invited to participate, 4030 completed the survey. Of these, 280 had a firearm in their homes and had a child aged 13 to 17 years who participated in the survey. The mean (SD) age of parents was 45.2 (7.2) years; of children, 15.0 (1.4) years. The sample included 159 male adolescents (weighted percentage, 60.8%; 95% CI, 53.8%-67.8%) and 129 male adults (weighted percentage, 48.3%; 95% CI, 40.9%-55.6%). In 33.9% (95% CI, 26.7%-41.2%) of households, an adolescent reported that they could access a loaded firearm in less than 5 minutes. In homes where all guns were locked, 23.7% (95% CI, 12.3%-35.1%) of adolescents reported that they could access a loaded firearm in less than 5 minutes. Overall, 70.4% (95% CI, 63.7%-77.1%) of parents reported that their child could not access a household firearm. In households where parents said their child could not access a firearm, 21.8% (95% CI 13.8%-29.7%) of their children indicated that they could access a firearm within 5 minutes and 14.9% (95% CI, 8.9%-20.9%) indicated that they could access a firearm in more than 5 minutes but less than 1 hour.Conclusions and relevanceIn this study, many adolescents reported having ready access to loaded guns in their homes, even when all household firearms were locked. Many adolescents who reported having access to household firearms lived with parents who knew their children had access, but others lived with parents who did not know. These finding should inform prevention efforts aimed at reducing adolescent access to household firearms.
| S-EPMC7944379 | biostudies-literature
Project description:Mycobacterium africanum is endemic to West Africa and causes tuberculosis (TB). We reviewed reported cases of TB in the United States during 2004-2013 that had lineage assigned by genotype (spoligotype and mycobacterial interspersed repetitive unit variable number tandem repeats). M. africanum caused 315 (0.4%) of 73,290 TB cases with lineage assigned by genotype. TB caused by M. africanum was associated more with persons from West Africa (adjusted odds ratio [aOR] 253.8, 95% CI 59.9-1,076.1) and US-born black persons (aOR 5.7, 95% CI 1.2-25.9) than with US-born white persons. TB caused by M. africanum did not show differences in clinical characteristics when compared with TB caused by M. tuberculosis. Clustered cases defined as >2 cases in a county with identical 24-locus mycobacterial interspersed repetitive unit genotypes, were less likely for M. africanum (aOR 0.1, 95% CI 0.1-0.4), which suggests that M. africanum is not commonly transmitted in the United States.
| S-EPMC4766873 | biostudies-literature
Project description:Although management of multiple myeloma has changed substantially in the last decade, it is unknown whether the burden of ESRD due to multiple myeloma has changed, or whether survival of patients with multiple myeloma on RRT has improved. Regarding ESRD due to multiple myeloma necessitating RRT in the United States, we evaluated temporal trends between 2001 and 2010 for demography-adjusted incidence ratios, relative to rates in 2001-2002, and mortality hazards from RRT initiation, relative to hazards in 2001-2002. In this retrospective cohort study, we used the US Renal Data System database (n=1,069,343), 2001-2010, to identify patients with ESRD due to multiple myeloma treated with RRT (n=12,703). Demography-adjusted incidence ratios of ESRD from multiple myeloma decreased between 2001-2002 and 2009-2010 in the overall population (demography-adjusted incidence ratio 0.82; 95% confidence interval, 0.79 to 0.86) and in most demographic subgroups examined. Mortality rates were 86.7, 41.4, and 34.4 per 100 person-years in the first 3 years of RRT, respectively, compared with 32.3, 20.6, and 21.3 in matched controls without multiple myeloma. Unadjusted mortality hazards ratios declined monotonically after 2004 to a value of 0.72; 95% confidence interval, 0.67 to 0.77 in 2009-2010, and declines between 2001-2002 and 2008-2009 were observed (P<0.05) in most demographic subgroups examined. Findings were similar when adjustment was made for demographic characteristics, comorbidity markers, and laboratory test values. These data suggest the incidence of RRT from multiple myeloma in the United States has decreased in the last decade, and clinically meaningful increases in survival have occurred for these patients.
| S-EPMC4849810 | biostudies-other
Project description:BackgroundSeasonal influenza causes considerable morbidity and mortality across all age groups, and influenza vaccination was recommended in 2010 for all persons aged 6 months and above. We estimated the averted costs due to influenza vaccination, taking into account the seasonal economic burden of the disease.MethodsWe used recently published values for averted outcomes due to influenza vaccination for influenza seasons 2005-06, 2006-07, 2007-08, and 2008-09, and age cohorts 6 months-4 years, 5-19 years, 20-64 years, and 65 years and above. Costs were calculated according to a payer and societal perspective (in 2009 US$), and took into account medical costs and productivity losses.ResultsWhen taking into account direct medical costs (payer perspective), influenza vaccination was cost saving only for the older age group (65≥) in seasons 2005-06 and 2007-08. Using the same perspective, influenza vaccination resulted in total costs of $US 1.7 billion (95%CI: $US 0.3-4.0 billion) in 2006-07 and $US 1.8 billion (95%CI: $US 0.1-4.1 billion) in 2008-09. When taking into account a societal perspective (and including the averted lost earnings due to premature death) averted deaths in the older age group influenced the results, resulting in cost savings for all ages combined in season 07-08.DiscussionInfluenza vaccination was cost saving in the older age group (65≥) when taking into account productivity losses and, in some seasons, when taking into account medical costs only. Averted costs vary significantly per season; however, in seasons where the averted burden of deaths is high in the older age group, averted productivity losses due to premature death tilt overall seasonal results towards savings. Indirect vaccination effects and the possibility of diminished case severity due to influenza vaccination were not considered, thus the averted burden due to influenza vaccine may be even greater than reported.
| S-EPMC4521706 | biostudies-literature
Project description: Not available
| S-EPMC4344265 | biostudies-literature
Project description:This article examines the effect of delinquent peers on an individual's criminal activity by leveraging quasi-experimental variation in exposure to peers, separating confounding and causal effects. In particular, we examine the role of wider peer networks (i.e., classmates) as a critical source of influence on adolescents' delinquent behavior. Using a combined instrumental variables/fixed effects methodology, we address important methodological challenges in estimating peer effects. Results suggest that increasing the proportion of peers who engage in criminal activities by 5 percent will increase the likelihood an individual engages in criminal activities by 3 percentage points.
| S-EPMC5788185 | biostudies-literature
Project description:IntroductionTobacco policies that limit the sale of cigarettes to minors and restrict smoking in public places are important strategies to deter youth from accessing and consuming cigarettes.MethodsWe examined the relationship of youth cigarette smoking status to state-level youth access and clean indoor air laws, controlling for sociodemographic characteristics and cigarette price. Data were analyzed from the 2001 to 2002 U.S. Health Behavior in School-Aged Children survey, a cross-sectional survey conducted with a nationally representative sample of 13,339 students in the United States.ResultsCompared with students living in states with strict regulations, those living in states with no or minimal restrictions, particularly high school students, were more likely to be daily smokers. These effects were somewhat reduced when logistic regressions were adjusted for sociodemographic characteristics and cigarette price, suggesting that higher cigarette prices may discourage youth to access and consume cigarettes independent of other tobacco control measures.DiscussionStrict tobacco control legislation could decrease the potential of youth experimenting with cigarettes or becoming daily smokers. The findings are consistent with the hypothesis that smoking policies, particularly clean indoor air provisions, reduce smoking prevalence among high school students.
| S-EPMC2699932 | biostudies-literature
Project description:ObjectiveTo determine sociodemographic correlates of problematic screen use (social media, video games, mobile phones) among a racially/ethnically and socioeconomically diverse population-based sample of 10-14-year-old early adolescents.Study designWe analyzed cross-sectional data from the Adolescent Brain Cognitive Development Study (Year 2, 2018-2020; N = 8753). Multiple linear regression analyses were used to estimate associations between sociodemographic factors (age, sex, race/ethnicity, primary language, household income, parental education) and adolescent-reported problematic video game (Video Game Addiction Questionnaire), social media (Social Media Addiction Questionnaire), and mobile phone use (Mobile Phone Involvement Questionnaire).ResultsBoys reported higher problematic video game use while girls reported higher problematic social media and mobile phone use. Native American, black, and Latinx adolescents reported higher scores across all problematic screen measures compared to non-Latinx white adolescents. Having unmarried/unpartnered parents was associated with higher problematic social media use. Although higher household income was generally protective against problematic video game use, these associations were weaker for black than white adolescents (p for interaction <0.05).ConclusionsGiven the sociodemographic differences in problematic screen use, digital literacy education strategies can focus on at-risk populations, encourage targeted counseling by pediatricians, and adapt family media use plans for diverse backgrounds.ImpactWhile sociodemographic differences in screen time are documented, we examined sociodemographic differences in problematic screen use in a large, diverse sample of early adolescents in the US. Boys reported higher problematic video game use while girls reported higher problematic social media and mobile phone use. Native American, black, and Latinx adolescents reported higher scores across all problematic screen measures compared to non-Latinx white adolescents. Although higher household income was generally protective against problematic video game use, these associations were weaker for black than white adolescents. Beyond time spent on screens, pediatricians, parents, and educators should be aware of sociodemographic differences in problematic screen use.
| S-EPMC9243697 | biostudies-literature