Effect of peer support interventions on cardiovascular disease risk factors in adults with diabetes: a systematic review and meta-analysis.

BACKGROUND: Peer support by persons affected with diabetes improves peer supporter's diabetes self-management skills. Peer support interventions by individuals who have diabetes or are affected by diabetes have been shown to improve glycemic control; however, its effects on other cardiovascular disease risk factors in adults with diabetes are unknown. We aimed to estimate the effect of peer support interventions on cardiovascular disease risk factors other than glycemic control in adults with diabetes. METHODS: We conducted a systematic review and meta-analysis of randomized controlled trials comparing peer support interventions to a control condition in adults affected by diabetes that measured any cardiovascular disease risk factors [Body Mass Index, smoking, diet, physical activity, cholesterol level, glucose control and blood pressure]. Quality was assessed by Cochrane's risk of bias tool. We calculated standardized mean difference effect sizes using random effects models. RESULTS: We retrieved 438 citations from multiple databases including OVID MEDLINE, Cochrane database and Scopus, and author searches. Of 233 abstracts reviewed, 16 articles met inclusion criteria. A random effects model in a total of 3243 participants showed a positive effect of peer support interventions on systolic BP with a pooled effect size of 2.07 mmHg (CI 0.35 mmHg to 3.79 mmHg, p = 0.02); baseline pooled systolic blood pressure was 137 mmHg. There was a non-significant effect of peer support interventions on diastolic blood pressure, cholesterol, body mass index, diet and physical activity. Cardiovascular disease risk factors other than glycemic control outcomes were secondary outcomes in most studies and baseline values were normal or mildly elevated. Only one study reported smoking outcomes. CONCLUSIONS: We found a small (2 mmHg) positive effect of peer support interventions on systolic blood pressure in adults with diabetes whose baseline blood pressure was on average minimally elevated. Additional studies need to be conducted to further understand the effect of peer support interventions on high-risk cardiovascular disease risk factors in adults with diabetes.

Medication adherence outcomes of 771 intervention trials: Systematic review and meta-analysis.

Excellent medication adherence contributes to decreases in morbidity, mortality, and health care costs. Although researchers have tested many interventions to increase adherence, results are sometimes conflicting and often unclear. This systematic review applied meta-analytic procedures to integrate primary research that tested medication adherence interventions. Comprehensive searching completed in 2015 located 771 published and unpublished intervention studies with adherence behavior outcomes. Random-effects model analysis calculated standardized mean difference effect sizes. Meta-analytic moderator analyses examined the association between adherence effect sizes and sample, design, and intervention characteristics. Analyses were conducted in 2016. A standardized mean difference effect size of 0.290 comparing treatment and control groups was calculated. Moderator analyses revealed larger effect sizes for habit-based and behavioral-targeted (vs. cognitive-focused) interventions. The most effective interventions were delivered face-to-face, by pharmacists, and administered directly to patients. Effect sizes were smaller in studies with older and homeless participants. Risks of bias were common; effect sizes were significantly lower among studies with masked data collectors and intention-to-treat analyses. The largest effect sizes were reported by studies using medication electronic event monitoring and pill count medication adherence measures. Publication bias was present. This most comprehensive review to date documented that, although interventions can increase adherence, much room remains for improvement. Findings suggest health care providers should focus intervention content on behavioral strategies, especially habit-based interventions, more so than cognitive strategies designed to change knowledge and beliefs.

Patient-Centered Outcomes of Medication Adherence Interventions: Systematic Review and Meta-Analysis.

OBJECTIVE: Using meta-analytic procedures to synthesize changes in patient-centered outcomes after medication adherence interventions. METHODS: Strategies to locate studies included online searches of 13 databases and 19 research registries, hand searches of 57 journals, and author and ancestry searches of all eligible studies. Search terms included patient compliance, medication adherence, and related terms. Searches were conducted for all studies published since 1960. Eligible published or unpublished primary studies tested medication adherence interventions and reported medication knowledge, quality of life, physical function, and symptom outcomes. Primary study attributes and outcome data were reliably coded. Overall standardized mean differences (SMDs) were analyzed using random-effects models. Dichotomous and continuous moderator analyses and funnel plots were used to explore risks of bias. RESULTS: Thorough searching located 141 eligible reports. The reports included 176 eligible comparisons between treatment and control subjects across 23,318 subjects. Synthesis across all comparisons yielded statistically significant SMDs for medication knowledge (d = 0.449), quality of life (d = 0.127), physical function (d = 0.142), and symptoms (d = 0.182). The overall SMDs for studies focusing on subsamples of patients with specific illnesses were more modest but also statistically significant. Of specific symptoms analyzed (depression, anxiety, pain, energy/vitality, cardiovascular, and respiratory), only anxiety failed to show a significant improvement after medication adherence interventions. Most SMDs were significantly heterogeneous, and risk of bias analyses suggested links between study quality and SMDs. CONCLUSIONS: Modest but significant improvements in patient-centered outcomes were observed after medication adherence interventions.

Peer Support Interventions for Adults With Diabetes: A Meta-Analysis of Hemoglobin A1c Outcomes.

PURPOSE: Peer support intervention trials have shown varying effects on glycemic control. We aimed to estimate the effect of peer support interventions delivered by people affected by diabetes (those with the disease or a caregiver) on hemoglobin A1c (HbA1c) levels in adults. METHODS: We searched multiple databases from 1960 to November 2015, including Ovid MEDLINE, the Cochrane Central Register of Controlled Trials, CINAHL, and Scopus. We included randomized controlled trials (RCTs) of adults with diabetes receiving peer support interventions compared with otherwise similar care. Seventeen of 205 retrieved studies were eligible for inclusion. Quality was assessed with the Cochrane risk of bias tool. We calculated the standardized mean difference (SMD) of change in HbA1c level from baseline between groups using a random effects model. Subgroup analyses were predefined. RESULTS: Seventeen studies (3 cluster RCTs, 14 RCTs) with 4,715 participants showed an improvement in pooled HbA1c level with an SMD of 0.121 (95% CI, 0.026-0.217; P = .01; I2 = 60.66%) in the peer support intervention group compared with the control group; this difference translated to an improvement in HbA1c level of 0.24% (95% CI, 0.05%-0.43%). Peer support interventions showed an HbA1c improvement of 0.48% (95% CI, 0.25%-0.70%; P <.001; I2 = 17.12%) in the subset of studies with predominantly Hispanic participants and 0.53% (95% CI, 0.32%-0.73%; P <.001; I2 = 9.24%) in the subset of studies with predominantly minority participants; both were clinically relevant. In sensitivity analysis excluding cluster RCTs, the overall effect size changed little. CONCLUSIONS: Peer support interventions for diabetes overall achieved a statistically significant but minor improvement in HbA1c levels. These interventions may, however, be particularly effective in improving glycemic control for people from minority groups, especially those of Hispanic ethnicity.

Blood pressure outcomes of medication adherence interventions: systematic review and meta-analysis.

This systematic review applied meta-analytic procedures to integrate primary research that examined blood pressure outcomes of medication adherence interventions. Random-effects model analysis calculated standardized mean difference effect sizes. Exploratory dichotomous and continuous moderator analyses using meta-analytic analogues of ANOVA and regression were performed. Codable data were extracted from 156 reports with 60,876 participants. The overall weighted mean difference systolic effect size was 0.235 across 161 treatment versus control comparisons. The diastolic effect size was 0.189 from 181 comparisons. Effect sizes were significantly heterogeneous. Common risks of bias included lack of allocation concealment, unmasked data collectors, and absent intention-to-treat analyses. Exploratory moderator analyses suggested that habit-based interventions may be most effective. The largest effect sizes were for interventions delivered by pharmacists. The modest magnitude effect sizes suggest future research should explore novel higher dose interventions that might address multiple levels of influence on adherence behavior.

Effectiveness of Interventions to Increase Physical Activity Among Minority Populations: An Umbrella Review.

PURPOSE: Numerous interventions have been tested to increase physical activity (PA) among minority adults, and several review papers have examined the results from these studies. The primary purpose of this umbrella review is to summarize evidence from existing reviews regarding effectiveness of PA interventions in minority populations. PROCEDURES: Searches were conducted in five electronic databases to identify English-language articles reviewing the effects of interventions to increase PA in minority adults living in the United States. Reviews that met the inclusion criteria were critically assessed using umbrella review procedures. Review quality was assessed using the PRISMA statement and checklist. FINDINGS: Twenty-two reviews fulfilled inclusion criteria. The sample included one meta-analysis, 11 integrated reviews, and 10 narrative reviews published between 1998 and 2012. The reviews documented modest improvements in PA with considerable variation in intervention effectiveness across primary studies. Integrative reviews generally were of higher overall quality than narrative reviews with regard to fulfilling PRISMA criteria. CONCLUSIONS: Integrated and narrative reviews were unable to validly determine the characteristics of effective interventions. Future reviews should employ meta-analytic methods in order to quantitatively identify those intervention characteristics that are most likely to increase PA behavior in minority adults.

The Effectiveness of Medication Adherence Interventions Among Patients With Coronary Artery Disease: A Meta-analysis.

BACKGROUND: Despite the known benefits of medication therapy for secondary prevention of coronary artery disease (CAD), many patients do not adhere to prescribed medication regimens. Medication nonadherence is associated with poor health outcomes and higher healthcare cost. OBJECTIVE: The purpose of this meta-analysis was to determine the overall effectiveness of interventions designed to improve medication adherence (MA) among adults with CAD. In addition, sample, study design, and intervention characteristics were explored as potential moderators to intervention effectiveness. METHODS: Comprehensive search strategies helped in facilitating the identification of 2-group, treatment-versus-control-design studies testing MA interventions among patients with CAD. Data were independently extracted by 2 trained research specialists. Standardized mean difference effect sizes were calculated for eligible primary studies, adjusted for bias, and then synthesized under a random-effects model. Homogeneity of variance was explored using a conventional heterogeneity statistic. Exploratory moderator analyses were conducted using meta-analytic analogs for analysis of variance and regression for dichotomous and continuous moderators, respectively. RESULTS: Twenty-four primary studies were included in this meta-analysis. The overall effect size of MA interventions, calculated from 18,839 participants, was 0.229 (P < .001). The most effective interventions used nurses as interventionists, initiated interventions in the inpatient setting, and informed providers of patients' MA behaviors. Medication adherence interventions tested among older patients were more effective than those among younger patients. The interventions were equally effective regardless of number of intervention sessions, targeting MA behavior alone or with other behaviors, and the use of written instructions only. CONCLUSIONS: Interventions to increase MA among patients with CAD were modestly effective. Nurses can be instrumental in improving MA among these patients. Future research is needed to investigate nurse-delivered MA interventions across varied clinical settings. In addition, more research testing MA interventions among younger populations and more racially diverse groups is needed.

Interventions to Improve Medication Adherence in Hypertensive Patients: Systematic Review and Meta-analysis.

This systematic review applied meta-analytic procedures to synthesize medication adherence interventions that focus on adults with hypertension. Comprehensive searching located trials with medication adherence behavior outcomes. Study sample, design, intervention characteristics, and outcomes were coded. Random-effects models were used in calculating standardized mean difference effect sizes. Moderator analyses were conducted using meta-analytic analogues of ANOVA and regression to explore associations between effect sizes and sample, design, and intervention characteristics. Effect sizes were calculated for 112 eligible treatment-vs.-control group outcome comparisons of 34,272 subjects. The overall standardized mean difference effect size between treatment and control subjects was 0.300. Exploratory moderator analyses revealed interventions were most effective among female, older, and moderate- or high-income participants. The most promising intervention components were those linking adherence behavior with habits, giving adherence feedback to patients, self-monitoring of blood pressure, using pill boxes and other special packaging, and motivational interviewing. The most effective interventions employed multiple components and were delivered over many days. Future research should strive for minimizing risks of bias common in this literature, especially avoiding self-report adherence measures.

Cultural relevance in medication adherence interventions with underrepresented adults: systematic review and meta-analysis of outcomes.

OBJECTIVE: This meta-analysis systematically compiles intervention research designed to increase medication adherence among underrepresented adults. METHOD: Comprehensive searching located published and unpublished studies with medication adherence behavior outcomes. Studies were included if samples were adults living in North America who had any of the following backgrounds or identities: African American, Native American, Latino, Latino American, Asian, Asian American, Pacific Islander, Native Alaskan, or Native Hawaiian. Random-effect analyses synthesized data to calculate effect sizes as a standardized mean difference and variability measures. Exploratory moderator analyses examined the association between specific efforts to increase the cultural relevance of medication adherence studies and behavior outcomes. RESULTS: Data were synthesized across 5559 subjects in 55 eligible samples. Interventions significantly improved medication adherence behavior of treatment subjects compared to control subjects (standardized mean difference=0.211). Primary studies infrequently reported strategies to enhance cultural relevance. Exploratory moderator analyses found no evidence that associated cultural relevance strategies with better medication adherence outcomes. CONCLUSION: The modest magnitude of improvements in medication adherence behavior documents the need for further research with clear testing of cultural relevance features.

Impact of physical activity interventions on anthropometric outcomes: systematic review and meta-analysis.

Considerable research has tested physical activity (PA) interventions to prevent and treat overweight and obesity. This comprehensive meta-analysis synthesized the anthropometric effects of supervised exercise interventions and motivational interventions to increase PA. Eligible intervention studies included healthy participants with reported anthropometric outcomes [e.g., body mass index (BMI)]. Extensive searching located 54,642 potentially eligible studies. We included data from 535 supervised exercise and 283 motivational interventions in our syntheses, which used random-effects analyses. Exploratory moderator analyses used meta-analytic analogues of ANOVA and regression. We synthesized data from 20,494 participants in supervised exercise and 94,711 undergoing motivational interventions. The overall mean effect sizes (ES, d) for treatment versus control groups in supervised exercise interventions were 0.20 (treatment vs. control within-group comparison) and 0.22 (between-group comparison). The ES of 0.22 represents a post-intervention BMI of 26.7 kg/m(2) for treatment participants relative to 27.7 kg/m(2) for controls. The corresponding mean ES for motivational interventions was significantly smaller (d = 0.09 for between group, d = 0.10 for treatment vs. control within-group). Control group within-group comparisons revealed slightly worsening anthropometric outcomes during study participation (d = -0.03 to -0.04). Moderator analyses identified potential variables for future research. These findings document significant improvements in anthropometric effects from both supervised exercise and motivational interventions.

Meta-analysis of fitness outcomes from motivational physical activity interventions.

BACKGROUND: Motivational physical activity (PA) interventions are effective in increasing PA behavior among healthy adults; however, the impact of these interventions on cardiorespiratory fitness (CRF) has not yet been examined. OBJECTIVE: The purpose of this meta-analysis is to quantitatively synthesize CRF outcomes of motivational PA interventions among healthy adults. METHODS: Comprehensive searching identified studies testing motivational PA interventions with CRF outcomes. Two independent coders extracted data. Data were synthesized using standardized mean difference effect sizes (ESs, d) under a random effects model. Heterogeneity was assessed, and moderator analyses were conducted using subgroup analyses and meta-regression. RESULTS: Data were analyzed from 11,458 primary study subjects. The overall mean ES for CRF was 0.48 (p < .01), which corresponds to a difference in VO2 max of 2.5 mL/kg/min between treatment and control groups. Studies were significantly heterogeneous (Q = 133.29, p < .01). Significant moderators included age (ß = -0.02, p = .01) and recommending endurance plus resistance exercises (d = 1.04) versus recommending only endurance exercise (d = 0.47). DISCUSSION: Motivational interventions designed to increase PA can improve CRF among healthy adults. Clinicians should recommend endurance and resistance exercise to improve CRF in this population. Future primary research should test interventions longitudinally and across more diverse populations. Although other moderators examined in this study did not show a significant effect on ES, the number of comparisons available for moderator analyses was small.

Heart failure care management programs: a review of study interventions and meta-analysis of outcomes.

BACKGROUND: The objective of this systematic review and meta-analysis was to describe and quantify individual interventions used in multicomponent outpatient heart failure management programs. METHODS: MEDLINE, CINAHL, and the Cochrane Central Register of Controlled Trials between 1995 and 2008 were searched using 10 search terms. Randomized controlled trials evaluating outpatient programs that addressed comprehensive care to decrease readmissions for patients with heart failure were identified. Forty-three articles reporting on 35 studies that reported readmissions separately from other outcomes were included. Three investigators independently abstracted primary study characteristics and outcomes. RESULTS: In the 35 studies, participants included 8071 subjects who were typically older (mean [SD] age, 70.7 [6.5] years) and male (59%). Using our coding scheme, the number of individual interventions within a program ranged from 1 to 7 within individual studies; the most commonly used interventions were patient education, symptom monitoring by study staff, symptom monitoring by patients, and medication adherence strategies. Most programs had a teaching component with a mean (SD) of 6.4 (3.9) individual topics covered; frequent teaching topics were symptom recognition and management, medication review, and self-monitoring. Fewer than half of the 35 studies reviewed reported adequate data to be included in the meta-analysis. Some outcomes were infrequently reported, limiting statistical power to detect treatment effects. CONCLUSION: A number of studies evaluating multicomponent HF management programs have found positive effects on important patient outcomes. The contribution of the individual interventions included in the multicomponent program on patient outcomes remains unclear. Future studies of chronic disease interventions must include descriptions of recommended key program components to identify critical program components.

Using meta-analyses for comparative effectiveness research.

Comparative effectiveness research seeks to identify the most effective interventions for particular patient populations. Meta-analysis is an especially valuable form of comparative effectiveness research because it emphasizes the magnitude of intervention effects rather than relying on tests of statistical significance among primary studies. Overall effects can be calculated for diverse clinical and patient-centered variables to determine the outcome patterns. Moderator analyses compare intervention characteristics among primary studies by determining whether effect sizes vary among studies with different intervention characteristics. Intervention effectiveness can be linked to patient characteristics to provide evidence for patient-centered care. Moderator analyses often answer questions never posed by primary studies because neither multiple intervention characteristics nor populations are compared in single primary studies. Thus, meta-analyses provide unique contributions to knowledge. Although meta-analysis is a powerful comparative effectiveness strategy, methodological challenges and limitations in primary research must be acknowledged to interpret findings.

Interventions to increase physical activity among healthy adults: meta-analysis of outcomes.

OBJECTIVES: We conducted a meta-analysis summarizing the effects of interventions designed to increase physical activity among healthy adults. METHODS: Our comprehensive searches located 358 reports eligible for inclusion. We used random-effects analyses to synthesize data, and we used meta-analytic analogues of regression and analysis of variance to examine potential moderator variables. We also explored moderator variable robustness and publication bias. RESULTS: We computed meta-analytic results from studies comprising 99 011 participants. The overall mean effect size for comparisons of treatment groups versus control groups was 0.19 (higher mean for treatment participants than for control participants). This effect size is consistent with a mean difference of 496 ambulatory steps per day between treatment and control participants. Exploratory moderator analyses suggested that the characteristics of the most effective interventions were behavioral interventions instead of cognitive interventions, face-to-face delivery versus mediated interventions (e.g., via telephone or mail), and targeting individuals instead of communities. Participant characteristics were unrelated to physical activity effect sizes. Substantial between-studies heterogeneity remained beyond individual moderators. CONCLUSIONS: Interventions designed to increase physical activity were modestly effective. Interventions to increase activity should emphasize behavioral strategies over cognitive strategies.

Taking immunosuppressive medications effectively (TIMELink): a pilot randomized controlled trial in adult kidney transplant recipients.

BACKGROUND: Immunosuppressive medication non-adherence is one of the most prevalent but preventable causes of poor outcomes in adult renal transplant recipients, yet there is a paucity of studies testing interventions in this area. METHODS: Using a randomized controlled trial design, 30 adult renal transplant recipients were screened for medication non-adherence using electronic monitoring. Fifteen non-adherent participants were randomized to receive either a continuous self-improvement intervention or attention control management. The six-month continuous self-improvement intervention involved the participant and clinical nurse specialist collaboratively identifying the person's life routines, important people, and possible solutions to enhance medication taking. The participant then received individual monthly medication taking feedback delivered via a graphic printout of daily medication taking generated from electronic monitoring. RESULTS: The mean medication adherence score for the continuous self-improvement intervention group (n = 8) was statistically significantly higher than the attention control group's (n = 5) mean medication adherence score (p = 0.03). The continuous self-improvement intervention effect size (Cohen's d) was large at 1.4. Participants' perceptions of the intervention were highly favorable. CONCLUSIONS: The continuous self-improvement intervention shows promise as an effective and feasible approach to improve medication adherence in adult renal transplant recipients. A fully-powered study with a diverse sample is needed to confirm these preliminary findings.

Protecting the power of interventions through proper reporting.

Authors, reviewers, and journal editors are responsible for ensuring that standards of research reporting include detailed descriptions of interventions. The impact of nursing intervention research is much reduced when interventions are poorly described. Nursing research reports often fail to detail descriptions of interventions sufficiently to move future research forward, apply new knowledge in practice, and refine theories. To address this deficit, the authors constructed detailed guidelines for reporting interventions. Based on a review of health care literature, these guidelines include a discussion of theoretical, participant, interventionist, content, and delivery intervention elements with rationale for their inclusion. Suggestions for presenting this information in limited journal space are also presented.

Depressive symptom outcomes of physical activity interventions: meta-analysis findings.

BACKGROUND: Physical activity (PA) is consistently linked to mental health outcomes. PURPOSE: This meta-analysis synthesized depressive symptom outcomes of supervised and unsupervised PA interventions among healthy adults. METHODS: Comprehensive searching and coding were applied to PA interventions among adults without clinical depression. Analyses included random-effects standardized means, Q, and moderator analysis using analysis of variance and regression meta-analytic analogues. RESULTS: Treatment versus control comparisons yielded a standardized mean effect size of 0.372 among 38 supervised PA studies and 0.522 among 22 unsupervised PA studies. Preliminary moderator analyses suggested that supervised PA interventions may be more effective when they include flexibility/resistance and low-intensity exercise. Unsupervised PA interventions may be more effective when they recommend center-based PA. Methodological moderators (random assignment, control group management) were identified. CONCLUSIONS: These findings document that PA interventions reduce depressive symptoms even in adults without clinical depression. Moderator analyses suggest directions for future research as well as practice.

Anxiety outcomes after physical activity interventions: meta-analysis findings.

BACKGROUND: Although the mental health benefits of physical activity (PA) have been documented in numerous primary studies, anxiety outcomes of interventions to increase PA have not been examined through quantitative synthesis. OBJECTIVES: The objective of the study was to integrate extant research about anxiety outcomes from interventions to increase PA among healthy adults. METHOD: Through an extensive literature search, published and unpublished PA intervention studies with anxiety outcomes were located. In eligible studies, findings were reported from interventions designed to increase PA delivered to healthy adults without anxiety disorders. Data were coded from primary studies. Random-effects meta-analytic procedures were completed. Exploratory moderator analyses using meta-analysis analysis of variance and regression analogues were conducted to determine if report, methods, sample, or intervention characteristics were associated with differences in anxiety outcomes. RESULTS: Data were synthesized across 3,289 participants from 19 eligible reports. The overall mean anxiety effect size (d index) for two-group comparisons was .22 with significant heterogeneity (Q = 32.15). With exploratory moderator analyses, larger anxiety improvement effect sizes were found among studies that included larger samples, used random allocation of participants to treatment and control conditions, targeted only PA behavior instead of multiple health behaviors, included supervised exercise (vs. home-based PA), used moderate- or high-intensity instead of low-intensity PA, and suggested participants exercise at a fitness facility (vs. home) following interventions. DISCUSSION: Some interventions can decrease anxiety symptoms among healthy adults. Exploratory moderator analyses suggest possible directions for future primary research to compare interventions in randomized trials to confirm causal relationships.

Meta-analysis of quality-of-life outcomes from physical activity interventions.

BACKGROUND: Interventions to increase physical activity among adults with chronic illness are intended to improve quality of life and reduce disease complications or slow disease progression. OBJECTIVE: The aim of this study was to integrate quality-of-life outcomes from primary research studies testing interventions to increase physical activity among adults with chronic illness. METHODS: Extensive literature searching strategies were used to locate published and unpublished primary research testing physical activity interventions. Results were coded for studies that had at least 5 participants with chronic illness. Fixed- and random-effects meta-analytic procedures included moderator analyses. RESULTS: Eighty-five samples from 66 reports with 7,291 subjects were synthesized. The mean quality-of-life effect size for two-group comparisons (treatment vs. control) was.11 (higher mean quality-of-life scores for treatment subjects than for control subjects). The treatment group pre-post comparison effect size was.27 for quality of life. Heterogeneity was modest in two-group comparisons. Most design and sample attributes were unrelated to intervention effects on quality of life. Studies that exclusively used supervised center-based exercise reported larger quality-of-life improvements than did studies that included any educational/motivational content. Effect sizes were larger among unpublished and unfunded studies. The effect size for physical activity did not predict the quality-of-life effect size. DISCUSSION: Subjects experience improved quality of life from exposure to interventions designed to increase physical activity, despite considerable heterogeneity in the magnitude of the effect. Future primary research should include quality-of-life outcomes so that patterns of relationships among variables can be explored further.

Increasing nursing faculty research: the Iowa gerontological nursing research and regional research consortium strategies.

PURPOSE: Research development and regional consortium strategies are described to assist schools in all countries extend their gerontological nursing research productivity. The strategies, collaboration and mentoring experiences, and outcomes are also shared to illustrate a highly successful approach in increasing faculty programs of nursing research in a focused area of inquiry. DESIGN: A case description of gerontological nursing research development and regional consortium strategies in schools of nursing is used. The regional consortium included 17 schools of nursing that are working to increase faculty programs of gerontological nursing research. Survey responses describing publications, presentations, and research funding awards from 65 of 114 total faculty participants in consortium opportunities (pilot and mentoring grant participants, participants in summer scholars' grantsmanship seminars) were collected annually from 1995 through 2008 to describe outcomes. FINDINGS: From 1994 through 2008, faculty participants from the consortium schools who responded to the annual surveys reported a total of 597 gerontological nursing publications, 527 presentations at research conferences, funding of 221 small and internal grants, and 130 external grant awards, including 47R-series grants and 4 K awards. CONCLUSIONS: There is an urgent need for more nurse faculty with programs of research to inform the health care of persons and support the preparation of nurse clinicians and faculty. The shortage of nurse scientists with active programs of gerontological research is especially serious and limits the number of faculty who are needed to prepare future gerontological nurses, particularly those with doctoral degrees who will assume faculty positions. Further, junior faculty with a gerontological nursing research foci often lack the colleagues, mentors, and environments needed to develop successful research careers. The outcomes of the development and regional consortium strategies suggest that the principles of extending collaboration, mentoring, and resource sharing are useful to augment faculty research opportunities, networking and support, and to increase productivity in individual schools. CLINICAL RELEVANCE: Clinical relevance includes: (a) implications for preparing nurse scientists and academicians who are and will be needed to train nurses for clinical practice, and (b) development of more faculty programs of research to provide systematic evidence to inform nursing practice.