Causality and Causal Inference in Social Work: Quantitative and Qualitative Perspectives

Psychosocial Predictors of Pain and Disability Outcomes in People with Chronic Low Back Pain Treated Conservatively by Guideline-Based Intervention: A Systematic Review

Objective

Previous evidence has recommended conservative interventions as the best treatment in individuals with chronic low back pain (CLBP). However, the influence of psychosocial factors on the treatment outcomes is unclear. Therefore, this systematic review aimed to address the psychosocial factors that influence changes in pain and disability in patients with CLBP after a guideline-based conservative intervention.

Methods

Four electronic databases were systematically searched from inception until September 2020 for prospective studies examining the relationship between psychosocial factors and the outcomes of pain and disability after conservative intervention. All included studies were selected, extracted, and critically evaluated by two independent reviewers.

Results

In total, 15 studies were included in this systematic review. The results support the link between the baseline fear of movement, depression, self-efficacy, and catastrophizing with future functional disability outcomes after conservative interventions. However, these factors were less likely to predict changes in pain intensity outcomes after conservative interventions. Self-efficacy seems to mediate between some of the baseline psychosocial factors (eg, fear) and future pain and disability.

Conclusion

Fear of movement, self-efficacy, catastrophizing and depression were consistently reported to predict disability outcomes irrespective of the type of conservative intervention. This highlights the importance of addressing these factors in conservative management of CLBP.

Causal connection between dissociation and ongoing interpersonal violence: A systematic review

OBJECTIVE

To identify evidence for dissociation as a cause of ongoing interpersonal violence.

METHOD

A systematic review of the literature retrieved from ten databases.

RESULTS

Fifteen studies yielded from our search strategy have been included in the review; eleven of these were longitudinal and four were experimental. The evidence indicates that pathological dissociation may contribute towards enduring interpersonal violence. Thus, dissociation may account for instances of repeated victimisation. There are similar indications concerning offenders, but study designs in this area allow one to draw fewer causal conclusions. There is some evidence that dissociation decreases information processing from the limbic system, which may be one underlying neurofunctional mechanism of persistent violence.

CONCLUSION

There is growing evidence for dissociation as a cause of interpersonal violence. However, the available evidence is still limited, and our review rather reveals an important research gap. Future longitudinal and experimental studies aimed at clarifying the role of dissociation in the context of violence should take into account the theoretical and empirical complexity around the concept of dissociation.

National mixed methods evaluation of the effects of removing legal barriers to full practice authority of Dutch nurse practitioners and physician assistants

OBJECTIVE

To evaluate the effects of granting legal full practice authority (FPA) to nurse practitioners (NP) and physician assistants (PA) regarding the performance of specified reserved medical procedures and to support governmental decision-making.

DESIGN

Nationwide mixed methods design with triangulation of quantitative (Pre-post test design) and qualitative data (expert interviews and focus groups).

METHODS

Surveys focused on the performance of the procedures (monthly number, authorisation mode, consultations and procedural time) and legal cross-compliance requirements (adherence with protocols, competence). Interviews focused on competence, knowledge, skills, responsibilities, routine behaviour, NP/PA role, acceptance, organisational structure, collaboration, consultation, NP/PA positioning, adherence with protocols and resources. Data collection took place between 2011 and 2015.

RESULTS

Quantitative data included 1251 NPs, 798 PAs and 504 physicians. Besides, expert interviews with 33 healthcare providers and 28 key stakeholders, and 5 focus groups (31 healthcare providers) were held.After obtaining FPA, the proportion of NPs and PAs performing reserved procedures increased from 77% to 85% and from 86% to 93%, respectively; the proportion of procedures performed on own authority increased from 63% to 76% for NPs and from 67% to 71% for PAs. The mean number of monthly contacts between NPs/PAs and physicians about procedures decreased (from 81 to 49 and from 107 to 54, respectively), as did the mean duration in minutes (from 9.9 to 8.6 and from 8.8 to 7.4, respectively). Utilisation of FPA was dependent on the setting, as scepticism of physicians and medical boards hampered full implementation. Legal cross-compliance requirements were mostly fulfilled.

CONCLUSIONS

Informal practice was legalised. The opportunities to independently perform catheterisations, injections, prescribing, punctures and small surgical procedures were highly used. Care processes were organised more efficiently, services were performed by the most appropriate healthcare provider and conditions were met. This led to the recommendation to continue with FPA.

Measuring Use of Research Evidence: The Structured Interview for Evidence Use

OBJECTIVES

This article describes the Standard Interview for Evidence Use (SIEU), a measure to assess the level of engagement in acquiring, evaluating, and applying research evidence in health and social service settings.

METHOD

Three scales measuring input, process, and output of research evidence and eight subscales were identified using principal axis factor analysis and parallel analysis of data collected from 202 state and county child welfare, mental health, and juvenile justice systems leaders.

RESULTS

The SIEU scales and subscales demonstrate strong internal consistency as well as convergent and discriminant validity.

CONCLUSIONS

The SIEU is easy to use and can be administered as a complete scale or as three smaller scales to separately examine evidence in acquisition, evaluation, or application. The measure demonstrates potential in understanding the role of research evidence in service settings and in monitoring the process of evidence-based practice and application of scientific principles in social work practice.