Randomized controlled trials in nursing conducted by Latin American research teams: A scoping review.

INTRODUCTION: Randomized controlled trials (RCTs) are the cornerstone of systematic reviews and other evidence synthesis. RCT identification remains challenging because of limitations in their indexation in major databases and potential language bias. Scientific production in Latin American nursing is steadily increasing, but little is known about its design or main features. We aimed to identify the extent of evidence from RCTs in nursing conducted by Latin American research teams and evaluate their main characteristics, including potential risk of bias. DESIGN: Scoping review with risk of bias assessment. METHODS: We conducted a scoping review including a comprehensive electronic search in five relevant databases. We completed a descriptive data analysis and a risk of bias assessment of eligible studies using Cochrane's guidance. RESULTS: We identified 1784 references of which 47 were RCTs published in 40 journals. Twenty (42.6%) RCTs were published in journals in English. Chronic diseases were the most common health conditions studied (29.7%). Fifteen (31.9%) RCTs had a high risk of bias. Thirty (75%) journals were included in the Journal Citation Report (JCR) catalog and 5 (16.7%) were journals classified under nursing category. Twenty-one (52.5%) journals explicitly required CONSORT checklist recommendations for RCTs reporting. CONCLUSION: Publication of RCTs in nursing by Latin American authors has increased. Most journals where RCTs are published are in English and not specific to nursing. Searches in journals of other disciplines may be necessary to facilitate identification of RCTs in nursing. CONSORT statements need to be actively promoted to facilitate rigorous methodology and reporting of RCTs. CLINICAL RELEVANCE STATEMENT: This study highlights the need for an increased research focus on RCTs in nursing in Latin America, and the importance of enhancing the reporting quality of these studies to support evidence-based nursing practice.

Finding and evaluating randomised controlled trials in nursing conducted by Spanish research teams: A scoping review.

BACKGROUND/OBJECTIVES: To identify and assess the main characteristics and the potential risk of bias of randomised controlled trials (RCTs) in nursing conducted by Spanish research teams. METHODS: Scoping review of an electronic search in three major databases (date of search: October 2021). For the eligible studies, both descriptive data, and data to assess the potential risk of bias, were collected and analysed. RESULTS: Of 3391 references retrieved, 199 were eligible. These RCTs were published in 122 journals, most of them in English (101, 82.1%) and were included in the Journal Citation Report (JCR) (107, 87.7%). Moreover, 32 (26.2%) of those included in the JCR were classified under nursing. Two thirds (81, 66.4%) of the journals followed the CONSORT guidelines. A total of 65 RCTs (33.7%) had a high overall risk of bias. DISCUSSION: Most of the identified RCTs were published in journals not specific to nursing and in English language. Also, shortcomings in RCT design and reporting were observed despite recommendations to adhere the CONSORT guidelines. CONCLUSION: Comprehensive identification of RCTs in nursing may require searching in journals other than nursing-related. RCTs from Spanish research teams are more likely to be published in international journals published in English. CONSORT should be strongly advised to encourage proper design and reporting of RCTs.

Coping experiences of women in the different phases of breast cancer.

PURPOSE: To understand the evolution of coping among women diagnosed with breast cancer over time, and the effect of age and family income on coping. METHOD: Using a phenomenological qualitative study, data was collected through semi-structured interviews with sixteen women in a hospital in Barcelona (Spain) between January 2018 and June 2019. An analysis of thematic content and discursive profile was carried out, assisted by the Nvivo v.12 program. RESULTS: Coping strategies change according to the meaning of breast cancer in each phase and the age and family income. In the acute phase, multiple coping strategies are identified, and this variety was more frequent among the young women in the study. In the extended phase, planning, distancing, and seeking social support become important. The latter used during treatment by older women in the study, regardless of family income. In the follow-up phase, distancing stands out, but also the search for social support among young women with fewer resources. CONCLUSIONS: Coping with breast cancer evolves according to the meaning that the disease receives in each phase. In addition, the analysis by discursive profile shows how the social support context is also related to the coping strategies in each phase.

Brain-derived neurotrophic factor correlates with functional and cognitive impairment in non-disabled older individuals.

We used a complete battery of geriatric and psychometric tests to evaluate whether plasma-borne brain-derived neurotrophic factor (BDNF), a master molecule in neuroplasticity, is associated with the severity of functional and cognitive impairment in non-disabled older individuals. There was a significant positive correlation between BDNF plasma concentrations and the Barthel index, a measurement of the ability of individuals to perform the activities of daily living (p=0.03) and the concentration subcategory measured with the mini mental state examination (MMSE) test (p = 0.01). Furthermore, plasma BDNF inversely and significantly correlated with the blood eosinophil count (p = 0.01), the total cholesterol concentration (p = 0.04), and high-density lipoprotein cholesterol (p=0.04). However, BDNF did not correlate with any other socio-demographic or clinical characteristics, other analytical parameters measured in the blood, or any other geriatric assessment scales. Our results suggest that BDNF may play a role in the pathophysiology of functional impairment in the elderly and in some aspects of cognitive function. However, more studies are needed to understand the relationship between circulating BDNF and functional impairment to determine if BDNF represents a candidate biomarker for this type of cognitive impairment.