Predicting behavioural intentions towards medication safety among student and new graduate nurses across four countries.

AIMS AND OBJECTIVES: To identify final-year undergraduate students and new graduate nurses' behavioural intentions towards medication safety across four countries. BACKGROUND: Medication errors are a common and avoidable occurrence, being costly for not only patients but also for health systems and society. DESIGN: A multi-site cross-sectional study. METHODS: A self-administered survey was distributed to students and new graduate nurses in South Africa, India, Turkey and Australia. Descriptive statistics were calculated for all survey items. Multiple linear regressions were performed to predict behavioural intentions using the three Theory of Planned Behaviour constructs: attitudes, behavioural control and subjective norms. This study adheres to the STROBE guidelines. RESULTS: Data were analysed for 432 students and 576 new graduate nurses. Across all countries, new graduate nurses reported significantly higher scores on all the TPB variables compared with student nurses. Attitudes towards medication management were found significantly and positively related to intention to practice safe medication management for both student and new graduate nurses. Total perceived behavioural control was significantly and negatively related to intention to practice safe medication management for students. CONCLUSION: Student and new graduate nurses showed favourable attitude, subjective norm, perceived behaviour control and intention in practising medication safety. However, differences in countries require further exploration on the factors influencing attitudes towards medication safety among student nurses and new nurse graduates. RELEVANCE TO CLINICAL PRACTICE: Understanding student and new graduate nurses' medication administration practices is important to inform strategies aimed at improving patient safety. The findings of this study highlight the need for an internationally coordinated approach to ensure safe medication administration by student and new graduate nurses.

Effects of flavonoid-rich fruits on hypertension in adults: a systematic review.

OBJECTIVE: The objective of this systematic review was to synthesize the best available research evidence on the effectiveness of flavonoid-rich fruits in the treatment of hypertension. INTRODUCTION: Hypertension is a serious public health concern as it contributes to a significant burden of disease, leading to millions of deaths globally. Complementary therapies including flavonoids have generated interest in assisting the treatment of hypertension. Flavonoids are a type of polyphenol abundant in fruits and a growing body of evidence suggests antihypertensive effects of the flavonoids due to their antioxidant properties. To date, no systematic review has been performed to collate the evidence on the effects of flavonoid-rich fruits on hypertension in adults. INCLUSION CRITERIA: This systematic review included randomized controlled trials (RCTs) that compared the administration of any type of flavonoid-rich fruit or equivalent supplement with a placebo or other intervention in adults with hypertension. Trials that measured blood pressure using objective outcome measures such as a manual mercury sphygmomanometer were included. Studies that did not specify the flavonoid component of the fruit or fruit supplement were excluded from the review. Secondary outcomes, including change in weight, blood glucose level, triglycerides and total blood cholesterol levels, were also assessed. METHODS: A three-step search was undertaken, including a comprehensive search of the MEDLINE, Embase, Cochrane Trials (CENTRAL) and CINAHL databases, in September 2018. We also searched Dissertation Abstracts International, ProQuest Dissertations and Theses, MedNar and ClinicalTrials.gov to identify unpublished studies. The title and abstracts of the studies were reviewed by two independent reviewers against the inclusion/exclusion criteria. The methodological quality of the potential studies for inclusion were assessed using the critical appraisal checklist for randomized controlled trials as recommended by JBI. Data were pooled in a statistical meta-analysis model. Subgroup-analysis according to type of intervention and length of intervention period was performed. Where statistical pooling was not possible, the findings have been presented in a narrative form. RESULTS: Fifteen randomized controlled trials involving 572 participants were included in the review. The subclasses of flavonoids assessed included: anthocyanins, naringin, narirutin and flavan-3-ols. The overall methodological quality of the trials was high. Six trials investigated the effect of the flavonoid intervention on blood pressure within four weeks. Meta-analysis of four of the trials demonstrated no effect of flavonoids on systolic or diastolic blood pressure when compared to placebo (systolic mean difference = -1.02, 95% confidence interval [CI] -3.12, 1.07; p = 0.34, I = 0%; diastolic mean difference = -0.90, 95% CI -2.10, 0.31; p = 0.15, I = 0%). Similarly, pooled results from two crossover RCTs with two-timed dosed interventions in a 24-hour period demonstrated no effect on a reduction in diastolic blood pressure (p = 0.38) but did reveal evidence of a reduction in systolic blood pressure (p = 0). Six trials assessed blood pressure following the flavonoid intervention at more than four weeks follow-up. Meta-analysis of five of the trials demonstrated evidence of no effect on either systolic blood pressure (mean difference = -0.95, 95%CI -3.58, 1.68; p = 0.478, I = 0%) or diastolic blood pressure (mean difference = 0.86, 95%CI -1.11, 2.82; p = 0.393, I = 0%). CONCLUSIONS: The findings of this systematic review should be interpreted with caution, given that the results are obtained from single-center trials with small sample sizes. Flavonoids have no effect on systolic and diastolic blood pressure. Further robust RCTs using sample sizes based on power calculations are needed to provide evidence for the use of flavonoid-rich fruits for the management of hypertension.

Effectiveness of flavonoid rich fruits for hypertension in adults: a systematic review protocol.

REVIEW QUESTION: The question of this review is: what is the effectiveness of flavonoid rich fruits for blood pressure in adults with hypertension?