Meta-analyses of nursing interventions: the codebook as a research instrument

An integrative review of interventions for adolescent weight loss

The number of overweight adolescents aged 12-19 has tripled during the past 2 decades. Although health risks associated with obesity in adolescence and adulthood are well documented in the literature, little is known about the efficacy of interventions to reduce health risks of this group. The purpose of this study was to conduct a systematic review to describe the scope, domain, and effectiveness of weight loss interventions with overweight adolescents. English-language journal articles published in nursing, psychology, nutrition, medicine, and exercise physiology literature between 1980 and 2003 were retrieved. Seventeen studies using comparison or control groups and interventions directed at reductions in adolescent body mass index or body weight were identified. Descriptive findings of those studies are reported here. Five specific limitations of these studies emerged from the analysis of the interventions: the study findings have not been validated by replication, the samples failed to include adequate representation of Latino and African American male participants, family participation in studies has been inconsistent and infrequent, there is a need for attention to study dropout rates (with attrition reported as high as 45%), and there is a need for conceptual frameworks to guide the studies.

Use of Meta-analysis as a Teaching Strategy in Nursing Research Courses

In order to become knowledgeable consumers of nursing research, nursing students must be able to critically read research and determine the study's value for nursing practice. As the number of nursing intervention studies rises and research topics are studied more extensively, the use of meta-analysis in the discipline of nursing will also increase. The same scientific rigor demanded of other types of research must be applied to meta-analysis. In this article two teaching strategies using meta-analysis are shared for sharpening both undergraduate and graduate nursing students' critiquing skills. On the undergraduate level, nursing students can assess the quality of the studies included in a particular meta-analysis. On the graduate level, students can use an appraisal checklist of criteria for evaluating the actual meta-analysis.

Meta-analysis: overview and application to clinical nursing practice

If nursing practice is to benefit from the abundance of nursing research being conducted, a technique is needed to synthesize and integrate the results of individual studies. Meta-analysis, a quantitative approach to literature review, is such a technique. This article provides an overview of meta-analysis. Examples of published meta-analysis studies in obstetric and neonatal nursing are discussed to illustrate the clinical significance of this technique.

Meta-analysis for descriptive research

Although nurses have begun to use meta-analysis, a review of the nursing literature demonstrates that its use has not been maximized. Meta-analysis can be employed to synthesize descriptive as well as experimental research, yet attention in nursing has focused almost exclusively on meta-analysis techniques for, and meta-analytic studies of, experimental research. Furthermore, nursing literature has emphasized use of the effect size index (d) rather than the correlation index (r); the latter may, in some cases, be the more suitable metric, particularly with meta-analysis of correlational studies. An argument is made for the value of meta-analysis as a technique for integrating descriptive research, and an overview of different meta-analytic approaches to data analysis using the correlational index with descriptive research is provided.

Meta-analysis for the refinement of gerontological nursing research and theory

A meta-analysis review of literature addresses concerns such as inclusion and exclusion criteria for articles in the meta-analysis and seeks potentially biasing effects of sample size and characteristics, measurement of variables, type of design, and analytic techniques. Whereas the narrative review of literature provides direction by identifying potential variables and relationships of concern, meta-analysis quantifies those relationships by integrating findings and providing explicit direction for research, practice, and theory development. Despite its strengths for quantitatively integrating study results, meta-analysis is time consuming, labor intensive, and may omit other sources such as case studies, historical and qualitative research, and clinical decision making.

A descriptive analysis of the pediatric pain management research

A meta-analysis was conducted to summarize the overall effect as well as scope of pediatric pain management research. The findings of this meta-analysis as related to effect size and methodologic characteristics are reported elsewhere. In describing the scope, the authors found that the majority of pediatric pain management research focused on the preparation of relatively well children for acute pain experiences of short duration. The interventions reported consisted of strategies that attempted to increase the cognitive, affective, and/or biophysical skills of the child experiencing pain. Behavioral, self-report, and physiologic measures were used to ascertain children's response to the painful experience.