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PubMed2004

Improving the reporting quality of nonrandomized evaluations of behavioral and public health interventions: the TREND statement.

Developing an evidence base for making public health decisions will require using data from evaluation studies with randomized and nonrandomized designs. Assessing individual studies and using studies in quantitative research syntheses require transparent reporting of the study, with sufficient detail and clarity to readily see differences and similarities among studies in the same area. The Consolidated Standards of Reporting Trials (CONSORT) statement provides guidelines for transparent reporting of randomized clinical trials. We present the initial version of the Transparent Reporting of Evaluations with Nonrandomized Designs (TREND) statement. These guidelines emphasize the reporting of theories used and descriptions of intervention and comparison conditions, research design, and methods of adjusting for possible biases in evaluation studies that use nonrandomized designs.

Behavioral Research↗
PubMed2000

The relationships between dietary guidelines, sugar intake and caries in primary teeth in low income Brazilian 3-year-olds: a longitudinal study.

OBJECTIVES: To investigate the effects of dietary guidelines on sugar and sugar intake at day nurseries, and other potential risk factors on dental caries in two groups of low socio-economic nursery schoolchildren. DESIGN: Nursery based, longitudinal study. SETTING: Metropolitan area of Recife, north-eastern Brazil. SAMPLE AND METHODS: The study population comprised 510, 3-year-old low socio-economic nursery schoolchildren. Sugar intake at the nursery was based upon a weighed inventory method during 2 non-consecutive days. Parents answered a questionnaire. RESULTS: Children attending nurseries not adopting guidelines on reduction of sugar intake had a higher caries risk, with an odds ratio of 3.6 compared to those attending nurseries with guidelines. A higher caries increment was related to higher daily frequency and weight of sugar intake at nursery, overall daily frequency of sugar intake (sugar intake at home plus nursery), past caries experience, use of fluoride, and habits related to toothbrushing. Children having more than 32.6 g of sugar daily at nursery were 2.99 times more likely to have high caries increment than those having less than that amount. CONCLUSIONS: Sugar intake at nursery and the adoption of guidelines on sugar were associated with lower caries increment in low income nursery schoolchildren. A number of modifiable factors such as a higher daily frequency and weight of sugar intake at nursery, use of fluoride and habits related to toothbrushing were strongly related to caries increment.

Brazil↗
PubMed2002

Inpatient management of diabetes mellitus.

There is now widespread appreciation of the importance of maintaining glucose levels as close to the normal range as possible among outpatients with diabetes. However, the importance of tight glucose control in inpatients is less well established. During the past several years, it has become apparent that hyperglycemia in hospitalized patients, especially those in the postoperative setting, is associated with poorer outcomes. In addition, two randomized trials have shown improved outcomes with intensive glucose management in acutely ill patients. Based on these studies and our own experience, we propose guidelines and a framework for improving the glycemic control of hospitalized patients.

Blood Glucose↗
PubMed2000

Practical guidelines for clinicians who treat patients with amiodarone. Practice Guidelines Subcommittee, North American Society of Pacing and Electrophysiology.

Amiodarone has become an important drug for the treatment of supraventricular and ventricular arrhythmias, in short-term inpatient and outpatient settings. It may also have a role in affecting outcome in patients at high risk for arrhythmic events and sudden death; its place among available therapies is being established in clinical trials.

Administration, Oral↗
PubMed1994

Rules and guidelines for nomenclature of mouse genes. International Committee on Standardized Genetic Nomenclature for Mice.

Guidelines for mouse genetic nomenclature were developed in the 1940s and have been revised several times since. The most recent revision was completed by the International Committee on Standardized Genetic Nomenclature in Mice. The basic rules for naming and symbolizing mouse mutant genes and polymorphic loci are summarized here with reference to sources of the complete rules for genes, strains and chromosomal anomalies.

Animals↗
PubMed2001

Passive respiratory mechanics: the occlusion techniques.

The aim of this position paper is to define quality control and acceptance criteria for measuring passive respiratory mechanics in infants using the occlusion techniques to ensure that valid results are obtained. These guidelines cover numerous aspects including: 1) terminology and definitions; 2) equipment; 3) data acquisition; 4) data handling and analysis; 5) reporting of results. Adherence to these guidelines should ensure that measurement of passive respiratory mechanics in infants in different lung function laboratories could be performed with an acceptable degree of safety, precision, and reproducibility. This will facilitate multi-centre collection of data and performance of clinical investigations.

Airway Resistance↗
PubMed2002

The 2001 Canadian recommendations for the management of hypertension: Part two--Therapy.

OBJECTIVE: To provide updated, evidence-based recommendations for the therapy of hypertension in adults. OPTIONS: For patients with hypertension, a number of antihypertensive agents may control blood pressure. Randomized trials evaluating first-line therapy with thiazides, beta-adrenergic antagonists, angiotensin-converting enzyme inhibitors, calcium channel blockers, alpha-blockers, centrally acting agents or angiotensin II receptor antagonists were reviewed. OUTCOMES: The health outcomes that were considered were changes in blood pressure, cardiovascular morbidity, and cardiovascular and/or all-cause mortality rates. Economic outcomes were not considered due to insufficient evidence. EVIDENCE: MEDLINE was searched for the period March 1999 to October 2001 to identify studies not included in the 2000 revision of the Canadian Recommendations for the Management of Hypertension. Reference lists were scanned, experts were polled, and the personal files of the subgroup members and authors were used to identify other published studies. All relevant articles were reviewed and appraised, using prespecified levels of evidence, by content experts and methodological experts. VALUES: A high value was placed on the avoidance of cardiovascular morbidity and mortality. BENEFITS, HARMS AND COSTS: Various antihypertensive agents reduce the blood pressure of patients with sustained hypertension. In certain settings, and for specific classes of drugs, blood-pressure lowering has been associated with reduced cardiovascular morbidity and/or mortality. RECOMMENDATIONS: The present document contains detailed recommendations pertaining to treatment thresholds, target blood pressures, and choice of agents in various settings in patients with hypertension. The main changes from the 2000 Recommendations are the addition of a section on the treatment of hypertension in patients with diabetes mellitus, the amalgamation of the previous sections on treatment of hypertension in the young and old into one section, increased emphasis on the role of combination therapies over repeated trials of single agents and expansion of the section on the treatment of hypertension after stroke. Implicit in the recommendations for therapy is the principle that treatment for an individual patient should take into consideration global cardiovascular risk, the presence and/or absence of target organ damage, and comorbidities. VALIDATION: All recommendations were graded according to strength of the evidence and voted on by the Canadian Hypertension Recommendations Working Group. Individuals with potential conflicts of interest relative to any specific recommendation were excluded from voting on that recommendation. Only those recommendations achieving high levels of consensus are reported here. These guidelines will continue to be updated annually.

Antihypertensive Agents↗
PubMed1998

DNA recommendations 1997 of the International Society for Forensic Genetics.

The DNA commission of the International Society for Forensic Haemogenetics (ISFH) has over the years published a series of documents providing guidelines and recommendations concerning the application of DNA polymorphisms to problems of identification. This latest report provides recommendations relating to the nomenclature of short tandem repeat system (STR) typing systems which are at the forefront of systems used at present by forensic scientists and are likely to remain so for the immediate future.

Alleles↗
PubMed1996

Guidelines for reporting morbidity and mortality after cardiac valvular operations. The American Association for Thoracic Surgery, Ad Hoc Liaison Committee for Standardizing Definitions of Prosthetic Heart Valve Morbidity.

At the request of the Councils of The Society of Thoracic Surgeons (STS) and The American Association for Thoracic Surgery (AATS) the Ad Hoc Liaison Committee for Standardizing Definitions of Prosthetic Heart Valve Morbidity "revisited" the "Guidelines" published in September 1988 [1-3]. The purpose of the review was to update and clarify definitions within the guidelines and to consider recommendations made by others [4, 5]. The variety of cardiac valvular procedures has expanded since 1988; therefore, in this document the term "operated valve" indicates prosthetic and bioprosthetic heart valves of all types: operated or repaired native valves and allograft and autograft valves. The term "operated valve" includes any cardiac valve altered by a surgeon during an operation. Much morbidity and mortality is a direct consequence of the interaction between the patient and operated valve(s), although patient variables (e.g., age, degree of coronary arterial disease, follow-up care) may be more responsible for outcomes than an operated valve. However, no set of guidelines can identify all possible patient factors that may affect morbidity and mortality. General agreement regarding the following definitions of terms and suggestions for reporting data do not preclude more detailed analyses or constructive recommendations and investigators are encouraged to identify relevant patient factors in addition to factors related to operated valves.

Documentation↗
PubMed2001

Practice guidelines for lipid-based amphotericin B in stem cell transplant recipients.

OBJECTIVE: To provide clinicians who practice in the stem cell transplantation (SCT) setting with practical guidelines for the use of lipid-based amphotericin B (AmB) formulations in SCT patients who have documented or probable invasive fungal infections, are experiencing neutropenic fever, or require secondary prophylaxis for fungal infections. DATA SOURCES: Recommendations are based on the results of a two-day consensus meeting that convened clinicians versed in the management of infectious complications in patients undergoing SCT. This meeting, which was held October 21-23, 1998, in Orlando, Florida, was sponsored by an educational grant from The Liposome Company. In addition, primary articles were identified by MEDLINE search (1980-December 1999) and through secondary sources. STUDY SELECTION AND DATA EXTRACTION: All of the articles identified from the data sources were evaluated, and all information deemed relevant was included in this review. DATA SYNTHESIS: Immunocompromised patients, particularly patients undergoing high-dose chemotherapy with SCT, experience a high degree of morbidity and mortality from invasive fungal infections. Historically, treatment for such infections with conventional AmB had been limited primarily by its associated nephrotoxicity. Lipid-based formulations of AmB have helped to advance the management of invasive fungal infections in the SCT population by offering a treatment alternative that allows for administration of adequate amounts of active drug to produce clinical and mycologic responses, compared with conventional AmB, in a delivery system that is less nephrotoxic. Unfortunately, these agents are relatively expensive. Therefore, patients who are candidates for lipid-based products must be selected carefully. CONCLUSIONS: Practical guidelines are provided for the use of lipid-based AmB formulations in SCT patients who have documented or probable invasive fungal infections, are experiencing neutropenic fever, or require secondary prophylaxis for fungal infections.

Humans↗
PubMed1994

Malignant histiocytosis and large cell anaplastic (Ki-1) lymphoma in childhood: guidelines for differential diagnosis--report of the Histiocyte Society.

A workshop of the Histiocyte Society was recently held, in order to discuss the problems and confusion of malignant histiocytosis (MH) and large cell anaplastic (Ki-1) lymphoma (LCAL). The aims of this workshop were to clarify the terminology for malignant histiocytic disorders and LCAL and to produce reliable criteria for diagnosis of both MH and LCAL. This article summarises the conclusions reached.

Antigens, CD↗
PubMed1995

Guidelines for application of meta-analysis in environmental epidemiology. ISLI Risk Science Institute.

The use of meta-analysis in environmental epidemiology can enhance the value of epidemiologic data in debates about environmental health risks. Meta-analysis may be particularly useful to formally examine sources of heterogeneity, to clarify the relationship between environmental exposures and health effects, and to generate information beyond that provided by individual studies or a narrative review. However, meta-analysis may not be useful when the relationship between exposure and disease is obvious, when there are only a few studies of the key health outcomes, or when there is substantial confounding or other biases which cannot be adjusted for in the analysis. Recent increases in the use of meta-analysis in environmental epidemiology have highlighted the need for guidelines for the application of the technique. Guidelines, in the form of desirable and undesirable attributes, are presented in this paper for various components of a meta-analysis including study identification and selection; data extraction and analysis; and interpretation, presentation, and communication of results. Also discussed are the appropriateness of the use of meta-analysis in environmental health studies and when meta-analysis should or should not be used.

Environmental Exposure↗
PubMed1989

Guidelines for nutrition support in AIDS. Task Force on Nutrition Support in AIDS.

The nutritional status of people with AIDS is challenged throughout the progression of the illness by the manifestation of symptoms such as malabsorption, diarrhea, candidiasis, and fever. As yet, there is no widely accepted method for nutritional management of AIDS. Therefore, a Task Force on Nutrition Support in AIDS was formed to develop practical recommendations for those involved in the management of this patient population. The "Guidelines for Nutrition Support in AIDS" are aimed at improving nutritional status, alleviating symptoms, and enhancing quality of life at each stage of the disease. The Task Force concluded that optimizing the nutritional status of people with AIDS, through aggressive nutritional therapy, is essential in overall medical management; nutrition intervention and education is indicated as early in the disease progression as HIV diagnosis; thorough nutritional assessment and regular monitoring is advocated; and enteral feedings should be considered the first line of nutrition support therapy.

Acquired Immunodeficiency Syndrome↗