The effects of facility dogs on burnout, job-related well-being, and mental health in paediatric hospital professionals.

AIMS AND OBJECTIVES: To examine the effect of working with a facility dog on paediatric healthcare professionals' work-related burnout, job perceptions and mental health. BACKGROUND: Due to their roles caring for ill children and distressed families, paediatric healthcare professionals often experience substantial depression and burnout. According to prior research, facility dogs in children's hospitals may provide significant benefits to paediatric patients. However, their potential effects on healthcare professionals have been minimally explored. DESIGN: A cross-sectional design was used in adherence to the STROBE checklist. METHOD: Among 130 participants, n = 65 paediatric healthcare professionals working with a facility dog were compared to n = 65 control participants matched on age, gender identity, job position category and pet ownership. Hierarchical regression assessed the effect of working with a facility dog on standardised self-report measures of work-related burnout, job perceptions and mental health. RESULTS: For work-related burnout, working with a facility dog was associated with higher perceived personal accomplishment, but had no effect on emotional exhaustion. With respect to job perceptions, working with a facility dog was associated with more positive job descriptions and lower intention to quit, but not with perceptions about co-workers or workplace social support. Finally, in relation to mental health, working with a facility dog was associated with more positive emotions, better perceived mental health and less depression, but had no effect on anxiety. CONCLUSION: Findings suggest that facility dogs may be related to several benefits for healthcare professionals' work-related burnout, job perceptions and mental health, but that they do not influence all components of these areas. RELEVANCE TO CLINICAL PRACTICE: The present research functions to inform personnel in paediatric hospitals with existing facility dog programmes on the scope of their effects, in addition to shaping the expectations of hospitals considering the addition of a facility dog programme.

The Effect of a PTSD Service Dog on Military Veterans' Medication Regimens: A Cross-Sectional Pilot Study.

Recent research suggests that service dogs may have clinically-relevant benefits for military veterans with posttraumatic stress disorder (PTSD). However, the effects of PTSD service dogs on veterans' medication use has been largely unexplored. The objective of this study was to quantify the effect of PTSD service dogs on medication use among a population of military veterans with PTSD. In a cross-sectional design, United States post-9/11 military veterans with PTSD were recruited from a single service dog provider including veterans living with a PTSD service dog (n = 52) and veterans on the waitlist (n = 44). Both populations of veterans received treatment as usual. Participants completed an online survey of self-reported medication regimens and medication changes. Regression models quantified the effect of having a service dog on physical health, mental health, pain, and sleep medications while controlling for confounding variables (age, sex, relationship status, traumatic brain injuries, and physical health). Results indicated that there were no significant effects of having a service dog on overall self-reported medication use nor any specific medication category (p's > 0.06). However, veterans with a service dog were more likely than those on the waitlist to report that their doctor had decreased dosage or removed medications since getting their service dog. The results of this preliminary cross-sectional research should be interpreted with caution, as future within-subject and pharmacy-verified research is necessary to understand the causality of these findings.

Service Dogs for Veterans and Military Members With Posttraumatic Stress Disorder: Replication With the PTSD Checklist for DSM-5.

Psychiatric service dogs are an emerging complementary intervention for veterans and military members with posttraumatic stress disorder (PTSD). Recent cross-sectional studies have documented significant, clinically relevant effects regarding service dogs and PTSD symptom severity. However, these studies were conducted using the PTSD Checklist (PCL) for the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM). The present study aimed to replicate and advance these findings using the latest version of the PCL for the fifth edition of the DSM (PCL-5). Participants included 186 military members and veterans who had received a PTSD service dog (n = 112) or who were on the waitlist to receive one in the future (n = 74). A cross-sectional design was used to investigate the association between having a service dog and PCL-5 total and symptom cluster scores. After controlling for demographic variables, there was a significant association between having a service dog and lower PTSD symptom severity both in total, B = -14.52, p < .001, d = -0.96, and with regard to each symptom cluster, ps < .001, ds = -0.78 to -0.94. The results replicated existing findings using the largest sample size to date and the most recent version of the PCL. These findings provide additional preliminary evidence for the efficacy of service dogs as a complementary intervention for military members and veterans with PTSD and add to a growing body of foundational research serving to rationalize investment in the further clinical evaluation of this emerging practice.

Impact of Service Dogs on Family Members' Psychosocial Functioning.

IMPORTANCE: A growing body of evidence supports service dogs' positive psychosocial impact on people with a chronic condition, but very little is known about the effect of service dogs on the family members with whom they live. OBJECTIVE: To measure the impact that a service dog may have on family member functioning. DESIGN: Cross-sectional with a single time-point assessment. SETTING: Data were collected via a self-report survey completed online, over the phone, or by mail. PARTICIPANTS: Potential participants were recruited from national service dog provider Canine Assistants. Participants were caregivers or spouses of a person with a disability or illness who either currently had a service dog (n = 51) or was on the waitlist to receive one (n = 77). Participants were 50 family members (46 parents-caregivers and 4 spouses-partners) living with a service dog and 76 family members (68 parents-caregivers and 8 spouses-partners) whose family member was on the waitlist to receive one. OUTCOMES AND MEASURES: Participants completed standardized measures to quantify psychosocial health and functioning, health-related quality of life (HRQOL), and family functioning. RESULTS: Living with a service dog was most closely associated with less health-related worry and better overall psychosocial health and emotional functioning, less total family impact from the chronic condition, and better emotional HRQOL. CONCLUSIONS AND RELEVANCE: These findings provide preliminary evidence that, in addition to having an impact on recipients, service dogs can affect several aspects of family members' psychosocial health and functioning. WHAT THIS ARTICLE ADDS: This research demonstrates that the impact of a service dog may extend beyond the recipient and have positive impacts on family members' psychosocial functioning as well. Occupational therapy practitioners should include family members in discussions regarding the integration of a service dog into the home and recognize the potential for family-wide effects from the service dog's assistance.

The effects of service dogs for children with autism spectrum disorder and their caregivers: a cross-sectional study.

Introduction: Service dogs are an increasingly popular complementary intervention for children with autism spectrum disorder. However, despite increasing demand, there remains a lack of empirical research on their potential benefits. The purpose of this study was to evaluate the effects of service dogs on children with autism and their caregivers. Methods: A total of N = 75 families of children with autism were recruited from a non-profit service dog provider in the US, including n = 39 families previously placed with a service dog and n = 36 families engaging in usual care while on the waitlist. Caregivers completed an online survey containing both self- and proxy-report standardized measures of child, caregiver, and family functioning. Linear regressions modeled the relationship between service dog presence and survey outcomes, controlling for relevant child and caregiver covariates. Results: Results indicated that having a service dog was associated with significantly better child sleep behaviors, including better sleep initiation and duration and less sleep anxiety/co-sleeping with medium effect sizes. However, service dog presence was not significantly related to child withdrawal, negative emotionality, emotional self-control, hyperactivity, irritability, and lethargy with small effect sizes. For caregivers, having a service dog was not significantly related to standardized measures of caregiver strain, sleep disturbance, depression, or the impact of the child's condition on family functioning with small effect sizes. Supplemental matched case-control analyses confirmed these findings. Discussion: In conclusion, service dogs were found to positively impact sleep behaviors among children with autism, but may not uniformly relate to other areas of child and caregiver wellbeing. Prospective longitudinal designs, larger sample sizes able to detect small effects, and studies that measure sleep using objective methods are needed to build on these findings.

Service Dogs for Veterans and Military Members With Posttraumatic Stress Disorder: A Nonrandomized Controlled Trial.

Importance: Military members and veterans (hereafter, veterans) with posttraumatic stress disorder (PTSD) increasingly seek psychiatric service dogs as a complementary intervention, yet the effectiveness of service dogs is understudied. Objective: To estimate the associations between psychiatric service dog partnership and self-reported and clinician-rated PTSD symptom severity, depression, anxiety, and psychosocial functioning after 3 months of intervention among veterans. Design, Setting, and Participants: This nonrandomized controlled trial used standardized and validated assessment instruments completed by participants and administered by blinded clinicians. Recruitment, eligibility screening, and enrollment were conducted between August 2017 and December 2019. Veterans were recruited using the database of an accredited nonprofit service dog organization with constituents throughout the US. Participants were veterans with a PTSD diagnosis; they were allocated to either the intervention group (n = 81) or control group (n = 75). Outcome assessments were performed at baseline and at the 3-month follow-up. Data analyses were completed in October 2023. Interventions: Participants allocated to the intervention group received a psychiatric service dog for PTSD, whereas those allocated to the control group remained on the waiting list based on the date of application submitted to the service dog organization. Both groups had unrestricted access to usual care. Main Outcomes and Measures: The primary outcomes were PTSD symptom severity, depression, and anxiety after 3 months, and the secondary outcomes were psychosocial functioning, such as quality of life and social health. The self-reported PTSD Checklist for Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) was used to measure symptom severity, and the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5) was used to assess PTSD diagnosis (score range for both instruments: 0-80, with higher scores indicating greater PTSD symptoms). Results: The 156 participants included in the trial had a mean (SD) age of 37.6 (8.3) years and included 117 males (75%), 17 Black or African American individuals (11%), 30 Hispanic individuals (19%), and 117 White individuals (76%). Compared with the control group, the intervention group had significantly lower PTSD symptom severity based on the PTSD Checklist for DSM-5 mean (SD) score (41.9 [16.9] vs 51.7 [16.1]; difference in means, -11.5 [95% CI, -16.2 to -6.6]; P < .001) and the CAPS-5 mean (SD) score (30.2 [10.2] vs 36.9 [10.2]; difference in means, -7.0 [95% CI, -10.8 to -4.5]; P < .001) at 3 months. The intervention group also had significantly lower depression scores (odds ratio [OR], 0.45 [95% CI, 0.23-0.86]; difference in means, -3.3 [95% CI, -6.8 to -0.6]), anxiety (OR, 0.25 [95% CI, 0.13-0.50]; difference in means, -4.4 [95% CI, -6.9 to -2.1]), and most areas of psychosocial functioning (eg, social isolation: OR, 0.34 [95% CI, 0.18-0.64]). Conclusions and Relevance: This nonrandomized controlled trial found that compared with usual care alone, partnership with a trained psychiatric service dog was associated with lower PTSD symptom severity and higher psychosocial functioning in veterans. Psychiatric service dogs may be an effective complementary intervention for military service-related PTSD. Trial Registration: ClinicalTrials.gov ID: NCT03245814.

The cortisol awakening response in a 3 month clinical trial of service dogs for veterans with posttraumatic stress disorder.

Recent literature suggests that service dogs may be a valuable complementary intervention option for posttraumatic stress disorder (PTSD) among military veterans due to the potential influence on stress response dysregulation. The aim of this short-term longitudinal study was to quantify the impact of service dogs in US military veterans with PTSD with particular attention to the cortisol awakening response. A sub aim of the study was to empirically evaluate the physiological effects of PTSD service dogs on veteran partners. We conducted a clinical trial (ID: NCT03245814) that assessed the cortisol awakening response for 245 participants at baseline and 3 months follow-up across an intervention group (service dog: veterans n = 88, partners n = 46) and control group (usual care: n = 73, partners n = 38). A total of N = 161 veterans and N = 84 partners collected whole saliva samples via a passive drool collection immediately upon waking, 30 min after waking, and 45 min after waking on three consecutive weekdays at baseline and again at follow-up. Mixed model repeated measures (MMRM) with a fixed effect of the intervention group (service dog or control) were utilized. Covariates considered for the model included time of awakening, sleep duration, sleep efficiency, prior day experiences (measured via ecological momentary assessment), traumatic brain injury, age, gender, race, ethnicity, socioeconomic status, smoking status, alcohol use, physical health, and body mass index. A total of 3951 salivary samples were collected (veterans: 2613, partners: 1338). MMRM results demonstrated that veterans with a service dog had a statistically significant higher cortisol awakening response, including the area under the curve with respect to both increase (AUCi, ß = 1.46, p = 0.046) and absolute increase (AINC, ß = 0.05, p = 0.035). Results were not statistically significant for partners. Findings suggest that veterans with service dogs have a higher, less blunted CAR in comparison to veterans receiving usual care alone. In veterans with a blunted morning cortisol response, service dog placement could help boost their morning cortisol response.

Benefits and challenges of mobility and medical alert service dogs for caregivers of service dog recipients.

PURPOSE: Mobility and medical alert service dogs are an assistive technology for individuals with disabilities or chronic conditions. Informal caregivers of individuals with disabilities are subject to physical and emotional stress due to their responsibilities. Understanding how service dogs, an increasingly common assistive technology, may add to or subtract from caregiver stress is crucial for promoting caregiver well-being. The purpose of this study was to analyze caregiver accounts to understand their perspective on benefits and challenges they face with mobility and medical alert service dogs. MATERIALS AND METHODS: Open ended survey responses from 117 caregivers of service dog recipients (N = 72 with a service dog, N = 45 on the waitlist) were analysed through a conventional content analysis. RESULTS: Four major themes were found regarding caregiver and service dog: Family Benefits, Caregiver Benefits, Assistance Through Service Dog's Training, and Drawbacks. CONCLUSIONS: Findings suggest that benefits and challenges of mobility and medical service dogs extend beyond the service dog recipient, affecting the caregiver and other family members as well. Future studies should further explore this interaction to determine the best way to support caregivers of individuals with disabilities.IMPLICATIONS FOR REHABILITATIONMobility and medical alert service dogs are increasingly partnered with individuals with disabilities or chronic diseases as an assistive technology but few studies have focussed on the experience of the caregivers of service dog recipients. Caregivers of individuals with disabilities or chronic diseases may be subject to both psychological and physiological stressors as a result of their caregiver duties.Results found that caregivers perceive both benefits to themselves and to their families in terms building a bond with the animal that helps to reduce worry and offers emotional support. The most commonly mentioned drawbacks include general maintenance of the service dog, grooming needs and travel restrictions.This research is important in order to offer appropriate support to caregivers of individuals with disabilities.

The Effect of Mental Activation of One's Pet Dog on Stress Reactivity.

Research suggests that mental activation of human social support may reduce stress reactivity. However, the extent to which social support from pets elicits a similar effect has been less explored. This study aims to determine whether the mental activation of one's pet dog reduces stress reactivity to a subsequent experimental stressor. In a 2 × 2 design, 132 dog-owning participants (Mage = 20.14; 80% female) were randomly assigned to one of two mental activation conditions (pet dog; general) and one of two stressor conditions (social-evaluative; cognitive). Data were analyzed with two-way ANOVAs with self-reported (positive/negative affect, negative self-evaluation) and physiological (blood pressure, heart rate) dependent variables. Results indicated that participants randomized to the pet dog mental activation condition had smaller decreases in positive affect from baseline to post-stressor compared to the general mental activation condition. However, there were no significant interactions between time and mental activation condition on negative affect, negative self-evaluation, heart rate, or blood pressure. Thus, the mental activation of one's pet dog had a minimal effect on stress reactivity to a cognitive or social-evaluative stressor. Results suggest that the physical presence of an animal may be an essential mechanism underlying the benefits of animal-derived social support.

Service dogs for autistic children and family system functioning: a constant comparative analysis.

Introduction: Service dog placements for autistic children are growing in popularity, yet findings to date are mixed. Moreover, no study to date has examined these placements through the lens of a recognized theoretical model. The purpose of this study is twofold: to explore experiences reported by caretakers of autistic children involved in a service dog program, and to contextualize findings within an established theoretical framework. Methods: A total of n = 50 caretakers of autistic children (n = 38 with and n = 12 without a service dog) were recruited through the national non-profit service dog provider Canine Companions. Participants completed an online survey through Qualtrics which asked open-ended questions about their experiences, both negative and positive. Results: Constant comparative analysis identified two high level themes, nested within a family systems approach framework: (1) Enhancing social functioning of the family system unit and (2) Fostering stability and strength within family system subunits. These themes interacted holistically to foster and reinforce family system resilience. Placements led to greater social inclusion for children and their families, acted as a highly individualized intervention, and decreased experiences of judgement and stigma. Perceived as members of the family, service dogs may coregulate with the autistic child and family members and can be a source of joyful connection within the family. Discussion: Results highlighted the service dog's influence on the entire family (beyond the autistic child). Implications for service dog organizations suggest it may be helpful to account for family-wide impacts throughout the placement process. High standards on the part of provider organizations may minimize negatives, optimizing outcomes for both humans and canines. Ultimately, findings enrich our understanding of service dog interventions for autistic children.

Psychiatric service dog placements are associated with better daily psychosocial functioning for military veterans with posttraumatic stress disorder.

OBJECTIVE: Psychiatric service dog placements may benefit psychosocial functioning for veterans with posttraumatic stress disorder (PTSD), however, these effects have never been examined directly in daily life. This nonrandomized longitudinal clinical trial quantified the efficacy of psychiatric service dogs for daily psychosocial functioning among N = 168 veterans with PTSD using ecological momentary assessment (EMA). METHOD: EMA data were collected twice daily for 2 weeks at each assessment period (0 and 3 months), totaling 9,408 survey responses (2 Assessments × 14 Days × 2 Prompts × 168 Participants). RESULTS: At follow-up, regression analysis identified associations between service dog placement and better perceived social interaction quality (ß = 0.42, p < .05), better affect (negative affect: ß = -2.64, p < .001; positive affect: ß = 2.44, p < .001), and lower odds of panic attacks (OR = 0.68, p < .05). Social participation results were mixed: placements were associated with greater activity participation (ß = 3.21, p < .001) but lower odds of being away from home (OR = 0.77, p < .05), indicating possible support for anecdotes that public stigma is an obstacle to community participation. CONCLUSIONS: Results further revealed that the service dog's trained tasks may be particularly important for social functioning outcomes, and the service dog's presence for emotional functioning outcomes. Findings highlight a need for education surrounding service dog etiquette and reveal potential mechanisms underlying psychiatric service dog placements. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Perspectives on facility dogs from pediatric hospital personnel: A qualitative content analysis of patient, family, and staff outcomes.

An increasing number of children's hospitals feature full-time resident facility dogs, which are specially trained to work alongside pediatric healthcare professionals to improve the patient experience. This qualitative study aimed to describe the role that facility dogs play in the lives of patients, families, and hospital staff. A total of N = 73 pediatric healthcare professionals that worked with 46 facility dogs across 17 children's hospitals in the US completed a set of open-ended questions in an online survey. Responses were analyzed via a conventional thematic analysis and organized into themes and sub-themes. Facility dogs were described to benefit pediatric healthcare professionals' daily lives through improving stress and wellbeing, staff relationships, and job-related morale. Negative impacts included increased burdens and responsibilities in the workplace. Facility dogs were also described to benefit patients and families by helping build rapport, providing a comforting presence and positive resource, and normalizing the hospital environment. In conclusion, facility dog programs were found to be a promising complementary intervention to benefit both staff as well as and patients and families. Future research is warranted to examine short-term and long-term implications of facility dog programs for staff, patient, and family wellbeing.

Expectations versus experiences of veterans with posttraumatic stress disorder (PTSD) service dogs: An inductive conventional content analysis.

[Correction Notice: An Erratum for this article was reported in Vol 14(3) of Psychological Trauma: Theory, Research, Practice, and Policy (see record 2022-33825-001). In this article, the length of time in which service dogs had been paired with Veterans was reported incorrectly in the third paragraph under the "Participants" heading of the "Methods" section whereby the sentence "Participants with a service dog had received their PTSD service dog an average of 51.5 months prior to participating in the study (range = 3-121.7 months, SD = 33.3)." should have read "Participants with a service dog had received their PTSD service dog an average of 20.9 months prior to participating in the study (range = 1.2-46.23 months, SD = 13.18)." All versions of this article have been corrected.] Objective: The objective of this study was twofold: to describe the benefits and drawbacks of a posttraumatic stress disorder (PTSD) service dog from the perspective of Veterans with service dogs and to compare these reports to the expectations of Veterans who were on a waitlist for a PTSD service dog. Method: A total of 128 U.S. post-9/11 Veterans with PTSD were recruited from a nonprofit service dog provider (K9s for Warriors), including n = 69 with a PTSD service dog and n = 59 on the waitlist. Participant responses to open-ended survey questions were analyzed with conventional content analysis and classified into 214 codes across six subthemes, creating three larger themes. A subset (20%) of the data was independently coded to establish interrater reliability (Cohen's κ = .804). Frequency data were used to compare theme and subtheme prevalence between groups. Results: Veterans' experiences and expectations were centered on the effects the service dogs had on Veteran mental health, human-dog interaction, and the associated drawbacks. Although the majority of Veterans reported benefits from their service dogs, the findings revealed that Veterans on the waitlist more frequently mentioned benefits than those with a service dog. Study findings suggest that the drawbacks expected from service dogs differ from the drawbacks experienced. Conclusion: Understanding expectations versus experiences provides critical information for mental health professionals who are informing Veterans on individualized interventions for PTSD. This knowledge will enable professionals to temper expectations and educate Veterans on specific benefits and drawbacks so that they have a more rounded view of PTSD service dogs. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Associations between childhood maltreatment and behavioral sleep disturbances across the lifespan: A systematic review.

Childhood maltreatment has a range of long-term developmental and health consequences. Emerging research suggests that sleep disturbances may be a key behavioral health risk factor implicated in the relationship between maltreatment and poor health across the lifespan. This systematic review examined the association between maltreatment and behavioral sleep disturbances in childhood and adulthood. Studies were identified through PsycINFO, PubMed, and alternative search strategies such as Google Scholar and reference list checks, with an end date of July 2021. Quantitative, peer-reviewed articles examining behavioral sleep outcomes and/or characteristics among maltreatment-exposed samples were included. We assessed the potential risk of bias by examining study design and sleep and maltreatment assessment methods. Across 73 studies included in this review, there was a robust association between childhood maltreatment and behavioral sleep disturbances. Findings suggest that linkages between maltreatment and sleep outcomes diverge with respect to maltreatment characteristics, type of behavioral sleep disturbance assessed, use of subjective versus objective measures, and study design. Given that behavioral sleep disturbances are modifiable, more research is needed that incorporates objective measures of sleep and longitudinal designs to identify specific points of intervention to mitigate the potential long-term impacts of childhood maltreatment on health across socio-demographically diverse populations.

Characterizing veteran and PTSD service dog teams: Exploring potential mechanisms of symptom change and canine predictors of efficacy.

Psychiatric service dogs are an emerging complementary intervention for posttraumatic stress disorder (PTSD). Initial evidence suggests that partnership with a service dog may be related to less PTSD symptom severity. However, it remains unclear how or why this might occur. To address this gap, we conducted a longitudinal investigation of 82 post-9/11 military members or veterans and their PTSD service dogs to (1) evaluate service dog characteristics as potential predictors of efficacy, (2) assess dog and human characteristics as potential predictors of veteran-dog bond, and (3) explore potential mechanisms for mental health outcomes. Aim 1 results demonstrated that most service dog characteristics did not predict veterans' mental health outcomes, but lower service dog excitability was associated with less PTSD symptom severity at follow-up. Aim 2 results showed that closer dog-veteran relationships were associated with less excitable dog temperament. Aim 3 results indicated that worse mental health at follow-up was associated with greater use of the specifically trained PTSD service dog task to initiate a social greeting ("make a friend"), whereas better mental health was related to less use of dominance-based training methods, lower perceived emotional/logistical costs of service dog partnership, and closer veteran-dog relationships. More frequent use of the trained service dog task to signal when someone approaches from behind (cover/watch back) was associated with greater anxiety, but less PTSD symptom severity. Overall, veterans spent an average of 82% of their time with service dogs (assessed via Bluetooth proximity between dog collar and veteran smartphone), and most frequently asked their service dogs to perform the trained task for calming their anxiety (calm/comfort anxiety). The present study provides subjective and objective metrics of the heterogeneity among veteran-service dog dyads while also suggesting which of the assessed metrics might be potential mechanisms involved in the intervention.

Relationships among Early Adversity, Positive Human and Animal Interactions, and Mental Health in Young Adults.

Adverse childhood experiences (ACEs) are associated with poor mental health. Emerging research demonstrates the protective role of positive childhood experiences, including a positive sense of self and relationships with both humans and animals, in mitigating the impacts of early life adversity on mental health outcomes. This study examined whether benevolent childhood experiences (BCEs) or relationships and interactions with pets during childhood moderated the link between ACEs and current mental health symptoms in a sample of young adults. Students (N = 214) recruited from a public university in the U.S. completed an online survey. The results showed that ACEs were significantly associated with worse mental health symptoms, including anxiety and depression. Neither emotional closeness to a childhood pet dog nor positive interactions with a childhood pet were significant moderators of the relationship between ACEs and mental health. In contrast, more BCEs were associated with better mental health, and their interaction with ACEs was significant such that adversity-exposed young adults with high BCEs reported fewer mental health symptoms than those with low BCEs. The results highlight the need for continued research on differential experiences that may be protective in the relationship between adversity exposures and mental health.

Correction: The effects of assistance dogs on psychosocial health and wellbeing: A systematic literature review.

[This corrects the article DOI: 10.1371/journal.pone.0243302.].

Dogs Supporting Human Health and Well-Being: A Biopsychosocial Approach.

Humans have long realized that dogs can be helpful, in a number of ways, to achieving important goals. This is evident from our earliest interactions involving the shared goal of avoiding predators and acquiring food, to our more recent inclusion of dogs in a variety of contexts including therapeutic and educational settings. This paper utilizes a longstanding theoretical framework- the biopsychosocial model- to contextualize the existing research on a broad spectrum of settings and populations in which dogs have been included as an adjunct or complementary therapy to improve some aspect of human health and well-being. A wide variety of evidence is considered within key topical areas including cognition, learning disorders, neurotypical and neurodiverse populations, mental and physical health, and disabilities. A dynamic version of the biopsychosocial model is used to organize and discuss the findings, to consider how possible mechanisms of action may impact overall human health and well-being, and to frame and guide future research questions and investigations.

Variability in Human-Animal Interaction Research.

The field of Human-Animal Interaction (HAI) is plagued with mixed results. Some findings appear to indicate that interacting with a companion animal is beneficial for some aspect of human health and well-being, while other research outcomes are inconclusive or even indicate the opposite. The purpose of this paper is to take a closer look at this variability in research outcomes and to provide plausible explanations and potential remedies. Some of the reasons for mixed results are likely due to the wide variety of methodologies implemented, intermittent use of standardized measures and manualized protocols, variability in human and animal participants, and limited quantification of human-animal interactions or definitions of pet ownership. Variability in research outcomes is not unique to HAI and is, in fact, not uncommon in many more established fields such as psychology and medicine. However, the potential reasons for the variability may be linked to the unique nature of HAI in that, in its' simplest form, it involves two complex organisms, a human and an animal, interacting in dynamic ways. We argue that this complexity makes research in this field particularly challenging and requires a broad spectrum of theoretical and methodological considerations to improve rigor while ensuring the validity and reliability of conclusions drawn from study results.

The effects of service dogs on psychosocial health and wellbeing for individuals with physical disabilities or chronic conditions.

Purpose: To evaluate the effects of service dogs on psychosocial health and indicators of wellbeing among individuals with physical disabilities or chronic conditions.Materials and methods: A total of 154 individuals participated in a cross-sectional survey including 97 placed with a mobility or medical service dog and 57 on the waitlist to receive one. Hierarchical regression evaluated the effect of having a service dog on standardized measures of psychosocial health (Pediatric Quality of Life Inventory) as well as anger, companionship, and sleep disturbance (Patient Reported Outcome Measurement Information System). Among those with a service dog, the Monash Dog-Owner Relationship Scale quantified the human-animal bond.Results: Results indicated that compared to those on the waitlist, individuals with a service dog exhibited significantly better psychosocial health including higher social, emotional, and work/school functioning. There was no significant effect of having a service dog on anger, companionship, or sleep disturbance. Among those with a service dog, emotional closeness, dog-owner interaction, and amount of time since the service dog was placed were weak correlates of outcomes.Conclusions: Findings suggest that service dogs may have measurable effects on specific aspects of psychosocial health for individuals with physical disabilities or chronic conditions.Implications for rehabilitationHealth care providers should recognize that in addition to the functional benefits service dogs are trained to provide, they can also provide their handlers with psychosocial benefits from their assistance and companionship.Results indicate that having a service dog was related to better emotional functioning, social functioning, and work/school functioning. Areas with no significant relationship with having a service dog included social companionship, sleep, and anger.Although findings are from a large and representative sample of mobility and medical service dogs, there may be individual differences in how service dogs affect the psychosocial health of their handlers.