Carotenoids are a category of health-promoting phytonutrients that are found in a variety of fruits and vegetables and have been used as a biomarker to approximate dietary fruit and vegetable (F/V) intake. Carotenoids are consumed, metabolized, and deposited in blood, skin, and other tissues. Emerging evidence suggests spectroscopy-based skin carotenoid measurement is a noninvasive method to approximate F/V intake. Spectroscopy-based skin carotenoid measurement overcomes bias and error inherent in self-reported dietary recall methods, and the challenges in obtaining, storing, and processing invasive blood samples. The objective of this systematic review was to examine criterion-related validity of spectroscopy-based skin carotenoid measurement as a proxy for F/V intake. The 3 methods examined were resonance Raman spectroscopy (RRS), pressure-mediated reflection spectroscopy (RS), and spectrophotometers. A comprehensive literature search of PubMed, Excerpta Medica Database (Embase), Cumulative Index of Nursing and Allied Health Literature (CINAHL), ProQuest, Cochrane Database of Systematic Reviews, and Cochrane Central Register of Controlled Trials (CENTRAL) was performed in December 2018, yielding 7931 citations. Studies that examined associations between spectroscopy, blood carotenoids, and/or dietary intake were identified and reviewed independently by ≥2 reviewers to determine eligibility for inclusion. Twenty-nine articles met the inclusion criteria and all 29 studies found significant correlations or associations between spectroscopy-based skin carotenoids and plasma or serum carotenoids and/or dietary F/V intake. A majority of the studies evaluated carotenoid concentration in adults; however, 4 studies were conducted in infants and 6 studies evaluated children. Twenty studies specified the racial/ethnic groups from which the samples were drawn, with 6 including ≥20% of the sample from a minority, nonwhite population. The findings of this systematic review support the use of spectroscopy for estimating F/V intake in diverse human populations, although additional validation is needed, particularly among racially/ethnically diverse populations and populations of varying ages.

New graduate nurse practitioner (NP) postgraduate support programs and interventions have proliferated, sparking controversy. The Institute of Medicine/National Academy of Medicine recommends residency programs for new graduate NPs; however, the NP community debates whether new graduate NPs need additional training and whether such training compromises patient access to care. This systematic review aimed to synthesize evidence regarding the effectiveness of interventions and strategies to promote the professional transition of new graduate NPs. Interventions identified in the current literature included fellowship programs and a webinar. Strategies included mentorship, experiential learning, interprofessional training, and professional socialization. The studies reviewed primarily evaluated NPs’ perceptions of the interventions’ effects on their professional transitions. The findings from this systematic review highlight challenges in evidencing postgraduate support programs. The small number of available studies underscores a critical problem for the NP community: additional evidence is needed to inform whether and how to support new graduate NPs as they transition to practice.

Migrant and seasonal farmworkers, who are essential workers in the coronavirus global public health emergency, face unique risks to their health as well as longstanding health inequities. This commentary highlights these risks and argues that Internet access represents an underappreciated but critical part of the public health response. The authors first discuss the unique risk farmworkers face. We note the importance of Internet access in the time of physical distancing, the fact that many health outreach workers are no longer visiting camps, the need for telemedicine infrastructure, and the role of Internet access in providing connections to families in communities of origin. We describe existing efforts that have been implemented in North Carolina to raise awareness among public health and health promotion practitioners and researchers. The current coronavirus pandemic demands the attention of medical libraries, public health practitioners, and policy makers to address the digital divide for farmworkers and their families.

Stronger evidence on the value of new graduate nurse transition programs is needed to justify the cost and warrant expansion of these programs to more health systems. The aim of this integrative review was to critically analyze published research on the relationship between new graduate nurse transition programs and patient safety outcomes. Limited evidence was found on actual safety improvement; rather, transition programs have predominately measured the development of competency as a process outcome variable for improving patient safety. A systems model is proposed to guide future research examining structure, process, and outcome variables, linking transition programs with patient outcomes.