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1.
Hosp Pediatr ; 14(2): 137-145, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38287897

RESUMO

BACKGROUND AND OBJECTIVE: This study aimed to develop and evaluate an algorithm to reduce the chart review burden of improvement efforts by automatically labeling antibiotic selection as either guideline-concordant or -discordant based on electronic health record data for patients with community-acquired pneumonia (CAP). METHODS: We developed a 3-part algorithm using structured and unstructured data to assess adherence to an institutional CAP clinical practice guideline. The algorithm was applied to retrospective data for patients seen with CAP from 2017 to 2019 at a tertiary children's hospital. Performance metrics included positive predictive value (precision), sensitivity (recall), and F1 score (harmonized mean), with macro-weighted averages. Two physician reviewers independently assigned "actual" labels based on manual chart review. RESULTS: Of 1345 patients with CAP, 893 were included in the training cohort and 452 in the validation cohort. Overall, the model correctly labeled 435 of 452 (96%) patients. Of the 286 patients who met guideline inclusion criteria, 193 (68%) were labeled as having received guideline-concordant antibiotics, 48 (17%) were labeled as likely in a scenario in which deviation from the clinical practice guideline was appropriate, and 45 (16%) were given the final label of "possibly discordant, needs review." The sensitivity was 0.96, the positive predictive value was 0.97, and the F1 was 0.96. CONCLUSIONS: An automated algorithm that uses structured and unstructured electronic health record data can accurately assess the guideline concordance of antibiotic selection for CAP. This tool has the potential to improve the efficiency of improvement efforts by reducing the manual chart review needed for quality measurement.


Assuntos
Infecções Comunitárias Adquiridas , Pneumonia , Criança , Humanos , Antibacterianos/uso terapêutico , Estudos Retrospectivos , Fidelidade a Diretrizes , Pneumonia/tratamento farmacológico , Infecções Comunitárias Adquiridas/tratamento farmacológico
2.
Appl Clin Inform ; 14(3): 418-427, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36918166

RESUMO

OBJECTIVES: We sought to create a digital application to support clinicians in empiric and pathogen-directed antibiotic ordering based on local susceptibility patterns and evidence-based treatment durations, thereby promoting antimicrobial stewardship. METHODS: We formed a multidisciplinary team that met bimonthly from 2017 to 2018 to design and construct a web-based antimicrobial stewardship platform called Antibiogram + . We used an iterative and agile technical development process with frequent feedback from clinicians. RESULTS: Antibiogram+ is an online tool, accessible via the electronic health record and hospital intranet, which offers institutional antibiotic susceptibilities for major pathogens, recommendations for empiric antibiotic selection and treatment durations for common pediatric conditions, antimicrobial dosing and monitoring guidance, and links to other internal clinical decision support resources. The tool was accessed 11,823 times with 492 average monthly views during the first 2 years after release. Compared with use of a preexisting print antibiogram and dosing card, pediatric residents more frequently reported "often" being sure of antibiotic dosing with Antibiogram+ (58 vs. 15%, p < 0.01). Respondents also reported improved confidence in choice of antibiotic, but this finding did not reach statistical significance (55 vs. 35%, p = 0.26). CONCLUSION: We report the successful development of a digital antimicrobial stewardship platform with consistent rates of access during the first 2 years following release and improved provider comfort with antibiotic management.


Assuntos
Gestão de Antimicrobianos , Sistemas de Apoio a Decisões Clínicas , Humanos , Criança , Antibacterianos/uso terapêutico , Hospitais , Registros Eletrônicos de Saúde
3.
J Pediatric Infect Dis Soc ; 10(5): 629-634, 2021 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-33388760

RESUMO

BACKGROUND: In November 2020, the US Food and Drug Administration (FDA) provided Emergency Use Authorizations (EUA) for 2 novel virus-neutralizing monoclonal antibody therapies, bamlanivimab and REGN-COV2 (casirivimab plus imdevimab), for the treatment of mild to moderate coronavirus disease 2019 (COVID-19) in adolescents and adults in specified high-risk groups. This has challenged clinicians to determine the best approach to use of these products. METHODS: A panel of experts in pediatric infectious diseases, pediatric infectious diseases pharmacy, pediatric intensive care medicine, and pediatric hematology from 29 geographically diverse North American institutions was convened. Through a series of teleconferences and web-based surveys, a guidance statement was developed and refined based on review of the best available evidence and expert opinion. RESULTS: The course of COVID-19 in children and adolescents is typically mild and there is no high-quality evidence supporting any high-risk groups. There is no evidence for safety and efficacy of monoclonal antibody therapy for treatment of COVID-19 in children or adolescents, limited evidence of modest benefit in adults, and evidence for potential harm associated with infusion reactions or anaphylaxis. CONCLUSIONS: Based on evidence available as of December 20, 2020, the panel suggests against routine administration of monoclonal antibody therapy (bamlanivimab, or casirivimab and imdevimab), for treatment of COVID-19 in children or adolescents, including those designated by the FDA as at high risk of progression to hospitalization or severe disease. Clinicians and health systems choosing to use these agents on an individualized basis should consider risk factors supported by pediatric-specific evidence and ensure the implementation of a system for safe and timely administration that does not exacerbate existing healthcare disparities.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Antivirais/uso terapêutico , Tratamento Farmacológico da COVID-19 , Pneumonia Viral/tratamento farmacológico , Adolescente , Anticorpos Monoclonais Humanizados , COVID-19/epidemiologia , Criança , Aprovação de Drogas , Feminino , Humanos , Masculino , Pandemias , Pneumonia Viral/epidemiologia , Pneumonia Viral/virologia , SARS-CoV-2 , Estados Unidos/epidemiologia , United States Food and Drug Administration
4.
J Pediatric Infect Dis Soc ; 10(1): 34-48, 2021 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-32918548

RESUMO

BACKGROUND: Although coronavirus disease 2019 (COVID-19) is a mild infection in most children, a small proportion develop severe or critical illness. Data describing agents with potential antiviral activity continue to expand such that updated guidance is needed regarding use of these agents in children. METHODS: A panel of pediatric infectious diseases physicians and pharmacists from 20 geographically diverse North American institutions was convened. Through a series of teleconferences and web-based surveys, a set of guidance statements was developed and refined based on review of the best available evidence and expert opinion. RESULTS: Given the typically mild course of COVID-19 in children, supportive care alone is suggested for most cases. For children with severe illness, defined as a supplemental oxygen requirement without need for noninvasive or invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO), remdesivir is suggested, preferably as part of a clinical trial if available. Remdesivir should also be considered for critically ill children requiring invasive or noninvasive mechanical ventilation or ECMO. A duration of 5 days is appropriate for most patients. The panel recommends against the use of hydroxychloroquine or lopinavir-ritonavir (or other protease inhibitors) for COVID-19 in children. CONCLUSIONS: Antiviral therapy for COVID-19 is not necessary for the great majority of pediatric patients. For children with severe or critical disease, this guidance offers an approach for decision-making regarding use of remdesivir.


Assuntos
Antivirais/uso terapêutico , Tratamento Farmacológico da COVID-19 , Monofosfato de Adenosina/análogos & derivados , Monofosfato de Adenosina/uso terapêutico , Alanina/análogos & derivados , Alanina/uso terapêutico , COVID-19/terapia , Criança , Medicina Baseada em Evidências , Humanos , Hospedeiro Imunocomprometido , Fatores de Risco , Índice de Gravidade de Doença , Síndrome de Resposta Inflamatória Sistêmica/tratamento farmacológico
5.
J Pediatric Infect Dis Soc ; 9(6): 701-715, 2020 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-32318706

RESUMO

BACKGROUND: Although coronavirus disease 2019 (COVID-19) is mild in nearly all children, a small proportion of pediatric patients develop severe or critical illness. Guidance is therefore needed regarding use of agents with potential activity against severe acute respiratory syndrome coronavirus 2 in pediatrics. METHODS: A panel of pediatric infectious diseases physicians and pharmacists from 18 geographically diverse North American institutions was convened. Through a series of teleconferences and web-based surveys, a set of guidance statements was developed and refined based on review of best available evidence and expert opinion. RESULTS: Given the typically mild course of pediatric COVID-19, supportive care alone is suggested for the overwhelming majority of cases. The panel suggests a decision-making framework for antiviral therapy that weighs risks and benefits based on disease severity as indicated by respiratory support needs, with consideration on a case-by-case basis of potential pediatric risk factors for disease progression. If an antiviral is used, the panel suggests remdesivir as the preferred agent. Hydroxychloroquine could be considered for patients who are not candidates for remdesivir or when remdesivir is not available. Antivirals should preferably be used as part of a clinical trial if available. CONCLUSIONS: Antiviral therapy for COVID-19 is not necessary for the great majority of pediatric patients. For those rare cases of severe or critical disease, this guidance offers an approach for decision-making regarding antivirals, informed by available data. As evidence continues to evolve rapidly, the need for updates to the guidance is anticipated.


Assuntos
Antivirais/uso terapêutico , Tratamento Farmacológico da COVID-19 , Criança , Humanos , Medição de Risco , Índice de Gravidade de Doença
6.
Am J Epidemiol ; 189(8): 788-800, 2020 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-31971233

RESUMO

Faster rates of age-related cognitive decline might result in early onset of cognitive impairment and dementia. The relationship between ethanol intake and cognitive decline, although studied extensively, remains poorly understood. Previous studies used single measurements of ethanol, and few were conducted in diverse populations. We assessed the association of 9-year trajectories of ethanol intake (1987-1998) with 15-year rate of decline in cognitive performance from mid- to late life (1996-2013) among 2,169 Black and 8,707 White participants of the US Atherosclerosis Risk in Communities study using multivariable linear regression models. We hypothesized that stable, low to moderate drinking would be associated with lesser 15-year cognitive decline, and stable, heavy drinking with greater 15-year cognitive decline. Stable, low to moderate drinking (for Blacks, adjusted mean difference (MD) = 0.03 (95% confidence interval (CI): -0.13, 0.19); for Whites, adjusted MD = 0.02 (95% CI: -0.05, 0.08)) and stable, heavy drinking (for Blacks, adjusted MD = 0.08 (95% CI: -0.34, 0.50); for Whites, adjusted MD = -0.03 (95% CI: -0.18, 0.11)) in midlife compared with stable never-drinking were not associated with 15-year decline in general cognitive function from mid- to late life. No association was observed for the stable former and "mostly" drinking trajectories with 15-year cognitive decline. Stable low, low to moderate, and stable heavy drinking in midlife are not associated with lesser and greater cognitive decline, respectively, from mid- to late life among Black and White adults.


Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Disfunção Cognitiva/epidemiologia , Idoso , Idoso de 80 Anos ou mais , População Negra/estatística & dados numéricos , Feminino , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estados Unidos/epidemiologia , População Branca/estatística & dados numéricos
7.
Am J Public Health ; 102(10): 1872-8, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22897549

RESUMO

OBJECTIVES: We evaluated the effectiveness of care demonstration projects supported by the Title XX Adolescent Family Life (AFL) program, which serves pregnant and parenting adolescents in an effort to mitigate the risks associated with adolescent childbearing. METHODS: This cross-site evaluation involved 12 projects and 1038 adolescents who received either enhanced services funded by the AFL program or usual care. We examined the effects of enhanced services on health, educational, and child care outcomes approximately 6 months to 2 years after intake and explored moderation of program effects by time since intake and project characteristics associated with outcomes. RESULTS: The odds of using long-acting reversible contraception (odds ratio [OR] = 1.58) and receiving regular child care (OR = 1.50) in the past month were higher in the intervention group than in the comparison group. Odds of a repeat pregnancy were lower (OR = 0.39) among intervention group adolescents than among comparison group adolescents within 12 months of intake. Several project characteristics were associated with adolescent health outcomes. CONCLUSIONS: These projects show promise in improving effective contraceptive use, increasing routine child care, and yielding short-term decreases in repeat pregnancy.


Assuntos
Saúde da Família/educação , Governo Federal , Financiamento Governamental , Poder Familiar , Gravidez na Adolescência/prevenção & controle , Avaliação de Programas e Projetos de Saúde , Adolescente , Serviços de Saúde do Adolescente/economia , Anticoncepção , Feminino , Humanos , Masculino , Razão de Chances , Gravidez , Comportamento de Redução do Risco , Estados Unidos
8.
J Adolesc Health ; 51(2): 184-9, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22824450

RESUMO

PURPOSE: Reconsent involves asking research participants to reaffirm their consent for study participation when there have been significant changes in the study's procedures, risks, or benefits. We described the reconsent process, identified the reconsent rate, and examined the comparability of youths enrolled via consent and reconsent in a national evaluation of adolescent reproductive health programs. METHODS: Evaluation participants from five abstinence education projects (N = 2,176) and nine projects serving pregnant or parenting adolescents (N = 878) provided either parent or youth consent or reconsent to participate in the national evaluation. Participants completed surveys that included demographic characteristics; sexual intentions, norms and behaviors; and pregnancy history. Multivariate logistic regression was used to examine associations between consent status, demographic characteristics, and risk indicators. RESULTS: The reconsent rates in the abstinence education and pregnant or parenting samples were 45% and 58%, respectively. Participant's age was positively associated with reconsent. Hispanic adolescents (and, for abstinence education, other racial/ethnic minorities) were underrepresented among youth with reconsent. Among abstinence education study participants, risk indicators were not associated with consent status. Among pregnant or parenting teens, those who had experienced repeat pregnancy were less likely than those who had experienced only one pregnancy to have been enrolled via reconsent. CONCLUSIONS: Reconsent can bolster sample size but may introduce bias by missing some racial/ethnic and age-groups. Among high-risk adolescents, reconsent may also yield a sample that differs from consented samples on risk characteristics, necessitating statistical adjustments when analyzing data.


Assuntos
Consentimento Livre e Esclarecido/estatística & dados numéricos , Serviços de Saúde Reprodutiva/normas , Educação Sexual , Abstinência Sexual , Adolescente , Criança , Coleta de Dados , Feminino , Hispânico ou Latino/estatística & dados numéricos , Humanos , Consentimento Livre e Esclarecido/normas , Masculino , Poder Familiar , Gravidez , Gravidez na Adolescência , Avaliação de Programas e Projetos de Saúde/normas , Análise de Regressão , Risco , Estados Unidos
9.
Addict Behav ; 35(5): 444-51, 2010 May.
Artigo em Inglês | MEDLINE | ID: mdl-20097012

RESUMO

Measurement invariance is typically assumed when assessing drinking-related constructs across distinct groups of respondents. However, measurement properties of motivations related to mood maintenance and stress relief may differ in those experiencing symptoms of depression or anxiety. Invariance of social and coping drinking motives were explored with a sample of 4133 junior enlisted Air Force and Navy personnel. Measurement did not differ in those with depression symptoms. In contrast, those with anxiety symptoms differed in measurement of both motives. The impact of non-equivalence was demonstrated with a mediation model in which anxiety and depression predicted drinking motives, which in turn predicted heavy drinking. Incorporation of the partial invariance of the social motives factor attenuated the estimate of the mediated effect of social drinking motives by almost half compared to the estimate with invariance assumed. These results suggest that lack of measurement invariance could seriously bias or alter conclusions from tests of theoretical models and highlight the need for researchers to carefully consider the measurement properties of their constructs prior to model estimation.


Assuntos
Consumo de Bebidas Alcoólicas/psicologia , Transtornos de Ansiedade/psicologia , Transtorno Depressivo/psicologia , Militares/psicologia , Motivação , Adaptação Psicológica , Adolescente , Adulto , Feminino , Humanos , Masculino , Fatores de Risco , Inquéritos e Questionários , Estados Unidos , Adulto Jovem
10.
J Stud Alcohol Drugs ; 71(1): 15-22, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20105409

RESUMO

OBJECTIVE: The present study examined drinking rates of U.S. Navy and Air Force trainees during the month before attending basic training and after the ban on drinking alcohol was lifted during advanced training. METHOD: Surveys were obtained at five training bases (one U.S. Navy, four U.S. Air Force) from 6,298 persons for a response rate of 65%. Analyses were based on 4,962 young adults ages 18-25 (82% male) who gave valid responses about pre-basic drinking. RESULTS: Findings showed a rate of 43.1% heavy episodic drinking during the month before basic training, 15.8% by infrequent heavy episodic drinkers (five or more drinks per occasion at least once, four or more for women), and 27.3% by frequent heavy episodic drinkers (five or more drinks per occasion, four or more for women, at least once a week). Pre-basic frequent heavy episodic drinkers averaged 7.9 drinks per occasion and nearly 15 heavy episodic drinking days during the month. In contrast, heavy episodic drinking following basic training was substantially lower: 12.0% for infrequent heavy episodic drinkers and 9.0% for frequent heavy episodic drinkers. Comparisons with the U.S. Department of Defense Health Related Behaviors Survey suggest that post-basic frequent heavy episodic drinking rates are likely to increase over time but not to pre-basic levels. Pre-basic infrequent and frequent heavy episodic drinkers were more likely than nondrinkers or non-heavy episodic drinkers to initiate or re-initiate frequent heavy episodic drinking. Frequent heavy episodic drinking after basic tended to occur 1-6 weeks after the ban on alcohol use was lifted. CONCLUSIONS: Selection and socialization help explain heavy episodic drinking of U.S Navy and U.S. Air Force trainees.


Assuntos
Consumo de Bebidas Alcoólicas/epidemiologia , Consumo de Bebidas Alcoólicas/tendências , Militares , Medicina Naval , Temperança/tendências , Adolescente , Adulto , Consumo de Bebidas Alcoólicas/psicologia , Coleta de Dados/métodos , Feminino , Humanos , Masculino , Militares/psicologia , Temperança/psicologia , Estados Unidos/epidemiologia , Adulto Jovem
11.
Mil Med ; 173(4): 362-8, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18472626

RESUMO

OBJECTIVES: This study assessed the effects of seasons and temperature on injury rates during U.S. Army ordnance advanced individual training. METHODS: Injury data were collected each week at two clinics serving two geographically separated military training units. Weekly injury rates were calculated as the number of injured soldiers in each battalion (numerator) divided by the total number of soldiers in each battalion (denominator). A two-way analysis of variance examined weekly injury rates according to training unit and season of the year. Correlations between injury rates and average maximal temperatures were also examined. RESULTS: Analysis of variance indicated significant differences in injury rates according to training unit (p = 0.04) and season (p < 0.01) but no significant interaction between unit and season (p = 0.16). Injury rates in the summer were higher than injury rates in the winter or autumn. Coefficients for correlations between weekly injury rates and weekly average maximal temperatures were 0.71 and 0.88 for the two training units. CONCLUSIONS: These data support previous work in U.S. Army basic combat training indicating a seasonal effect on injury rates. Higher environmental temperatures were associated with higher injury rates.


Assuntos
Clima , Medicina Militar , Militares , Estações do Ano , Temperatura , Ferimentos e Lesões/epidemiologia , Adolescente , Adulto , Humanos , Fatores de Risco , Fatores de Tempo , Estados Unidos
12.
Am J Ind Med ; 50(12): 951-61, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17979136

RESUMO

BACKGROUND: This project documented injuries in the professional musical performers of the US Army Band and used a multivariate approach to determine injury risk factors. METHODS: Injuries were obtained from a medical surveillance database. Administrative records from the Band provided fitness test scores, physical characteristics, performing unit (Blues, Ceremonial, Chorale, Chorus, Concert, Strings), and functional group (strings, winds, keyboard, vocal, percussion, brass). A questionnaire completed by 95% of the Band (n=205) included queries on practice time, physical activity, tobacco use, and medical care. RESULTS: One or more injuries were diagnosed in 44 and 53% of Band members in the years 2004 and 2005, respectively. In univariate analysis, higher injury risk was associated with higher body mass index (BMI), less physical activity, prior injury, unit, functional group, and practice duration. In multivariate analysis, less self-rated physical activity, a prior injury, and functional group were independent risk factors. CONCLUSION: In the US Army Band, about half the performers had a medical visit for an injury in a 1-year period and injury risk was associated with identifiable factors.


Assuntos
Medicina Militar , Militares , Atividade Motora , Música , Doenças Profissionais/etiologia , Saúde Ocupacional , Aptidão Física , Ferimentos e Lesões/etiologia , Adulto , Índice de Massa Corporal , Bases de Dados como Assunto , Feminino , Inquéritos Epidemiológicos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Doenças Profissionais/epidemiologia , Inquéritos e Questionários , Estados Unidos/epidemiologia , Ferimentos e Lesões/epidemiologia
13.
Mil Med ; 172(9): 988-96, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17937365

RESUMO

This study describes injury rates, injury diagnoses, anatomical locations of injuries, limited duty days, and activities associated with injuries in a sample of Army mechanics. Medical records of 518 male and 43 female Army mechanics were screened for injuries during 1 year at a large U.S. Army installation. Weight, height, age, and ethnicity were also extracted from the medical records. Body mass index was calculated as weight/height2. Overall injury rates for men and women were 124 and 156 injuries/100 person-years, respectively, with a rate of 127 injuries/100 person-years for all soldiers combined. Women had higher overuse injury rates while men had higher traumatic injury rates. Limited duty days for men and women were 2,076 and 1,966 days/100 person-years, respectively. The lower back, knee, ankle, foot, and shoulder involved 61% of the injuries. Activities associated with injury included (in order of incidence) physical training, mechanical work, sports, airborne-related activities, road marching, garrison/home activities, and chronic conditions. Among the men, elevated injury risk was associated with higher body weight and higher body mass index. It may be possible to prevent many injuries by implementation of evidenced-based interventions currently available in the literature.


Assuntos
Militares/estatística & dados numéricos , Veículos Automotores , Ferimentos e Lesões/epidemiologia , Adolescente , Adulto , Índice de Massa Corporal , Peso Corporal , Feminino , Humanos , Masculino , Estudos Retrospectivos , Fatores de Risco , Estados Unidos/epidemiologia
14.
Mil Med ; 172(2): 115-20, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17357760

RESUMO

Epidemiological studies often have to rely on a participant's self-reporting of information. The validity of the self-report instrument is an important consideration in any study. The purpose of this investigation was to determine the validity of self-reported Army Physical Fitness Test (APFT) scores. The APFT is administered to all soldiers in the U.S. Army twice a year and consists of the maximum number of push-ups completed in 2 minutes, the maximum number of sit-ups completed in 2 minutes, and a 2-mile run for time. Army mechanics responded to a questionnaire in March and June 2004 asking them to report the exact scores of each event on their most recent APFT. Actual APFT scores were obtained from the soldier's military unit. The mean +/- standard deviation (SD) of actual and self-reported numbers of push-ups was 61 +/- 14 and 65 +/- 13, respectively. The mean +/- SD of actual and self-reported numbers of sit-ups were 66 +/- 10 and 68 +/- 10, respectively. The mean +/- SD of actual and self-reported run times (minutes) were 14.8 +/- 1.4 and 14.6 +/- 1.4, respectively. Correlations between actual and self-reported push-ups, sit-ups, and run were 0.83, 0.71, and 0.85, respectively. On average, soldiers tended to slightly over-report performance on all APFT events and individual self-reported scores could vary widely from actual scores based on Bland-Altman plots. Despite this, the close correlations between the actual and self-reported scores suggest that self-reported values are adequate for most epidemiological military studies involving larger sample sizes.


Assuntos
Teste de Esforço/métodos , Militares , Aptidão Física , Adulto , Feminino , Humanos , Masculino , Estudos Prospectivos , Reprodutibilidade dos Testes , Inquéritos e Questionários , Estados Unidos
15.
Sports Med ; 37(2): 117-44, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17241103

RESUMO

Three systematic reviews were conducted on: (i) the history of mouthguard use in sports; (ii) mouthguard material and construction; and (iii) the effectiveness of mouthguards in preventing orofacial injuries and concussions. Retrieval databases and bibliographies were explored to find studies using specific key words for each topic. The first recorded use of mouthguards was by boxers, and in the 1920s professional boxing became the first sport to require mouthguards. Advocacy by the American Dental Association led to the mandating of mouthguards for US high school football in the 1962 season. Currently, the US National Collegiate Athletic Association requires mouthguards for four sports (ice hockey, lacrosse, field hockey and football). However, the American Dental Association recommends the use of mouthguards in 29 sports/exercise activities. Mouthguard properties measured in various studies included shock-absorbing capability, hardness, stiffness (indicative of protective capability), tensile strength, tear strength (indicative of durability) and water absorption. Materials used for mouthguards included: (i) polyvinylacetate-polyethylene or ethylene vinyl acetate (EVA) copolymer; (ii) polyvinylchloride; (iii) latex rubber; (iv) acrylic resin; and (v) polyurethane. Latex rubber was a popular material used in early mouthguards but it has lower shock absorbency, lower hardness and less tear and tensile strength than EVA or polyurethane. Among the more modern materials, none seems to stand out as superior to another since the characteristics of all the modern materials can be manipulated to provide a range of favourable characteristics. Impact studies have shown that compared with no mouthguard, mouthguards composed of many types of materials reduce the number of fractured teeth and head acceleration. In mouthguard design, consideration must be given to the nature of the collision (hard or soft objects) and characteristics of the mouth (e.g. brittle incisors, more rugged occusal surfaces of molars, soft gingiva). Laminates with different shock absorbing and stress distributing (stiffness) capability may be one way to accommodate these factors.Studies comparing mouthguard users with nonusers have examined different sports, employed a variety of study designs and used widely-varying injury case definitions. Prior to the 1980s, most studies exhibited relatively low methodological quality. Despite these issues, meta-analyses indicated that the risk of an orofacial sports injury was 1.6-1.9 times higher when a mouthguard was not worn. However, the evidence that mouthguards protect against concussion was inconsistent, and no conclusion regarding the effectiveness of mouthguards in preventing concussion can be drawn at present. Mouthguards should continue to be used in sport activities where there is significant risk of orofacial injury.


Assuntos
Traumatismos em Atletas/prevenção & controle , Protetores Bucais , Segurança , Traumatismos Dentários/prevenção & controle , Boxe/lesões , Desenho de Equipamento , Futebol Americano/lesões , Hóquei/lesões , Humanos , Fatores de Risco , Estados Unidos
16.
Sports Med ; 36(7): 613-34, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16796397

RESUMO

This article defines physical fitness and then reviews the literature on temporal trends in the physical fitness of new US Army recruits. Nineteen papers were found that met the review criteria and had published recruit fitness data from 1975 to 2003. The limited data on recruit muscle strength suggested an increase from 1978 to 1998 (20-year period). Data on push-ups and sit-ups suggested no change in muscular endurance between 1984 and 2003 (19-year period). Limited data suggested that maximal oxygen uptake (VO2max) [mL/kg/min] of male recruits did not change from 1975 to 1998 (23-year period), while there was some indication of a small increase in female recruit VO2max in the same period. On the other hand, slower times on 1-mile (1.6km) and 2-mile (3.2km) runs indicate declines in aerobic performance from 1987 to 2003 (16-year period). The apparent discrepancy between the VO2max and endurance running data may indicate that recruits are not as proficient at applying their aerobic capability to performance tasks, such as timed runs, possibly because of factors such as increased bodyweight, reduced experience with running, lower motivation and/or environmental factors. Recruit height, weight and body mass index have progressively increased between 1978 and 2003 (25-year period). Both the body fat and fat-free mass of male recruits increased from 1978 to 1998 (20-year period); however, body composition data on female recruits did not show a consistent trend. In this same time period, the literature contained little data on youth physical activity but there was some suggestion that caloric consumption increased. This article indicates that temporal trends in recruit fitness differ depending on the fitness component measured. The very limited comparable data on civilian populations showed trends similar to the recruit data.


Assuntos
Medicina Militar , Militares , Aptidão Física , Composição Corporal , Índice de Massa Corporal , Humanos , Músculo Esquelético , Resistência Física , Fatores de Tempo , Estados Unidos
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