Jennifer L Jones’s research while affiliated with Dalhousie University and other places

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Publications (94)


Workflow of study-related procedures
This diagram depicts the workflow of study-related procedures, including recruitment, sampling, data collection, transcription and analysis.
Key barriers to implementation of GUT LINK evidence-based care pathway
The green inner circle of the figure highlights key barriers to implementing an evidence-based gastrointestinal clinical care pathway, as reported by primary healthcare providers in Nova Scotia, Canada. The blue outer circle highlights potential interventions that could address said barriers.
Participant sociodemographic characteristics (N = 15)
Primary healthcare provider-perceived barriers to implementing an evidence-based pathway for undifferentiated lower gastrointestinal tract symptoms: A qualitative inquiry
  • Article
  • Full-text available

December 2024

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10 Reads

Sowmya Sharma

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Michael J. Stewart

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Jennifer L. Jones

Background Primary healthcare providers play a critical role in diagnosing and managing digestive disorders. Standardized clinical care guidelines have been developed, but with limited and inconsistent implementation. An evidence-based gastroenterology clinical care pathway (GUTLINK) has been proposed in one region of Canada; however, little is known in the medical literature about potential barriers to pathway implementation within primary care. We aimed to identify behavioral and environmental barriers and facilitators to implementation of evidence-based care pathways for undifferentiated lower gastrointestinal tract symptoms in primary care. Methods One-on-one semi-structured interviews were conducted with primary healthcare providers between September 2021 and May 2022. Interview script development was guided by the COM-B framework. Interviews were transcribed and data were analyzed using an inductive thematic analysis approach. Results A total of 15 primary healthcare provider interviews were conducted. Several key barriers to GUTLINK implementation were identified in all three domains of the COM-B framework. Key barriers included Capability (e.g., Physician Knowledge and Access to Allied Health), Opportunity (e.g., Access to diagnostic tools), and Motivation (e.g., Comfort with managing cases and optimism). Some of these barriers have not previously been identified in medical literature. Conclusions Evidence-based clinical care pathways have the potential to support access to quality gastroenterology care, yet primary healthcare providers in this study identified several barriers to implementation. Potential solutions exist at the individual and clinic levels (e.g., greater education, improved provider-specialist communication), but must be supported with systems-level changes (e.g., increased funding for gastrointestinal care and e-Health platforms) to support pathway implementation and improve quality of care.

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Improving access to inflammatory bowel disease care in Canada: The patient experience

September 2024

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33 Reads

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1 Citation

Journal of Health Services Research & Policy

Objectives Canada has one of the highest age-adjusted incidence and prevalence rates of inflammatory bowel disease (IBD). Large patient volumes and limited resources have created challenges concerning the quality of IBD care, but little is known about patients’ experiences. This paper aimed to better understand patient-perceived barriers to IBD care. Methods An exploratory qualitative approach was used for this study. Fourteen focus groups (with 63 total participants) were co-facilitated by a researcher and patient research partner across eight Canadian provinces in 2018. Patients diagnosed with IBD (>18 years of age) and their caregivers were purposefully recruited through Crohn’s and Colitis Canada, gastroenterology clinics and communities, and national social media campaigns. Focus group sessions were recorded, transcribed, and analyzed using thematic analysis. Results Most participants self-identified as being white and women. The analysis generated four key themes regarding patient-perceived barriers and gaps in access to IBD care: (1) gatekeepers and their lack of IBD knowledge, (2) expenses and time, (3) lack of holistic care, and (4) care that is not patient-centered. An additional four themes were generated on the topic of patient-perceived areas of health system improvement for IBD care: (1) direct access to care, (2) good care providers, (3) electronic records and passports, and (4) multidisciplinary care or an ‘IBD dream team’. Conclusions This research contributes to the limited global knowledge on patients’ experiences accessing IBD care. It is valuable for the development of care plans and policies to target gaps in care. Patients have identified system-level barriers and ideas for improvement, which should be taken into consideration when implementing system redesign and policy change.




Health Services Utilization and Specialist Care in Pediatric Inflammatory Bowel Disease: A Multiprovince Population-Based Cohort Study

February 2024

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22 Reads

Inflammatory Bowel Diseases

Background Patterns of health services utilization among children with inflammatory bowel disease (IBD) are important to understand as the number of children with IBD continues to increase. We compared health services utilization and surgery among children diagnosed <10 years of age (Paris classification: A1a) and between 10 and <16 years of age (A1b). Methods Incident cases of IBD diagnosed <16 years of age were identified using validated algorithms from deterministically linked health administrative data in 5 Canadian provinces (Alberta, Manitoba, Nova Scotia, Ontario, Quebec) to conduct a retrospective cohort study. We compared the frequency of IBD-specific outpatient visits, emergency department visits, and hospitalizations across age groups (A1a vs A1b [reference]) using negative binomial regression. The risk of surgery was compared across age groups using Cox proportional hazards models. Models were adjusted for sex, rural/urban residence location, and mean neighborhood income quintile. Province-specific estimates were pooled using random-effects meta-analysis. Results Among the 1165 (65.7% Crohn’s) children with IBD included in our study, there were no age differences in the frequency of hospitalizations (rate ratio [RR], 0.88; 95% confidence interval [CI], 0.74-1.06) or outpatient visits (RR, 0.95; 95% CI, 0.78-1.16). A1a children had fewer emergency department visits (RR, 0.70; 95% CI, 0.50-0.97) and were less likely to require a Crohn’s-related surgery (hazard ratio, 0.49; 95% CI, 0.26-0.92). The risk of colectomy was similar among children with ulcerative colitis in both age groups (hazard ratio, 0.71; 95% CI, 0.49-1.01). Conclusions Patterns of health services utilization are generally similar when comparing children diagnosed across age groups.


Flow diagram depicting the hierarchical process of assigning children diagnosed with IBD to a pediatric tertiary-care center based on where their IBD care was provided in the first six months following diagnosis. *If a child had encounters at both pediatric and adult centers, the child was assigned to the pediatric center. If the patient had encounters at multiple pediatric hospitals, the child was assigned to the pediatric center where the most recent care was provided. **If care was provided by both pediatric and adult gastroenterologists, the child was assigned to the center where care was provided by a pediatric gastroenterologist.
Variation in the Care of Children with Inflammatory Bowel Disease Within and Across Canadian Provinces: A Multi-Province Population-Based Cohort Study

February 2024

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35 Reads

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2 Citations

Purpose The incidence of childhood-onset inflammatory bowel disease (IBD) is rising. We described variation in health services utilization and need for surgery among children with IBD between six and 60 months following IBD diagnosis across Canadian pediatric centers and evaluated the associations between care provided at diagnosis at each center and the variation in these outcomes. Patients and Methods Using population-based deterministically-linked health administrative data from four Canadian provinces (Alberta, Manitoba, Nova Scotia, Ontario) we identified children diagnosed with IBD <16 years of age using validated algorithms. Children were assigned to a pediatric center of care using a hierarchical approach based on where they received their initial care. Outcomes included IBD-related hospitalizations, emergency department (ED) visits, and IBD-related abdominal surgery occurring between 6 and sixty months after diagnosis. Mixed-effects meta-analysis was used to pool results and examine the association between center-level care provision and outcomes. Results We identified 3784 incident cases of pediatric IBD, of whom 2937 (77.6%) were treated at pediatric centers. Almost a third (31.4%) of children had ≥1 IBD-related hospitalization and there were 0.66 hospitalizations per person during follow-up. More than half (55.8%) of children had ≥1 ED visit and there were 1.64 ED visits per person. Between-center heterogeneity was high for both outcomes; centers where more children visited the ED at diagnosis had more IBD-related hospitalizations and more ED visits during follow-up. Between-center heterogeneity was high for intestinal resection in Crohn’s disease but not colectomy in ulcerative colitis. Conclusion There is variation in health services utilization among children with IBD and risk of undergoing intestinal resection in those with Crohn’s disease, but not colectomy among children with ulcerative colitis, across Canadian pediatric tertiary-care centers. Improvements in clinical care pathways are needed to ensure all children have equitable and timely access to high quality care.


Figure 1. Actual and forecasted incidence (a) and prevalence (b) of IBD in Canada by province. Actual incidence and prevalence, standardized for age and sex, is denoted by the solid line. Forecasted incidence and prevalence, analyzed with an ARIMA model and then forecasted until 2035, is indicated by a dashed line with the prediction intervals highlighted. All aggregate data reported are provided in an open access online interactive map: https://kaplan-gi. shinyapps.io/Canada_inc_prev/. AB, Alberta; ARIMA, autoregressive integrated moving average; BC, British Columbia; IBD, inflammatory bowel disease; MB, Manitoba; NL, Newfoundland; NS, Nova Scotia; ON, Ontario; QS, Quebec; SK, Saskatchewan.
Figure 2. Actual and forecasted national estimates for incidence (a) and prevalence (b) for all ages and stratified by pediatric-onset, adult-onset, and senioronset IBD. Actual incidence and prevalence, standardized for age and sex, is denoted by the solid line. Forecasted incidence and prevalence, analyzed with an ARIMA model and then forecasted until 2035, is indicated by a dashed line with the prediction intervals highlighted. All aggregate data reported are provided in an open access online interactive map: https://kaplan-gi.shinyapps.io/Canada_inc_prev/. ARIMA, autoregressive integrated moving average; IBD, inflammatory bowel disease.
Forecasting the Incidence and Prevalence of Inflammatory Bowel Disease: A Canadian Nationwide Analysis

February 2024

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103 Reads

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26 Citations

The American Journal of Gastroenterology

Objective Canada has a high burden of inflammatory bowel disease (IBD). Historical trends of IBD incidence and prevalence were analyzed to forecast the Canadian burden over the next decade. Methods Population-based surveillance cohorts in eight provinces derived from health administrative data assessed the national incidence (2007–2014) and prevalence (2002–2014) of IBD. Autoregressive integrated moving average models were used to forecast incidence and prevalence, stratified by age, with 95% prediction intervals (PIs), to 2035. The average annual percentage change (AAPC), with 95% confidence interval (CI) were calculated for the forecasted incidence and prevalence. Results The national incidence of IBD is estimated to be 29.9 per 100,000 (95%PI: 28.3, 31.5) in 2023. With a stable AAPC of 0.36% (95%CI: −0.05, 0.72), the incidence of IBD is forecasted to be 31.2 per 100,000 (95%PI: 28.1, 34.3) in 2035. The incidence in pediatrics (<18 years) is increasing (AAPC:1.27%; 95%CI: 0.82, 1.67), but stable in adults (AAPC: 0.26%; 95%CI: −0.42, 0.82). The prevalence of IBD in Canada was 843 per 100,000 (95%PI: 716, 735) in 2023 and is expected to steadily climb (AAPC: 2.43%; 95%CI: 2.32, 2.54) to 1,098 per 100,000 (95%PI: 1068, 1127) by 2035. The highest prevalence is in seniors with IBD (1174 per 100,000 in 2023; AAPC: 2.78%; 95%CI: 2.75, 2.81). Conclusion Over the next decade, the Canadian healthcare systems will contend with the juxtaposition of rising incidence of pediatric IBD and a rising prevalence of overall IBD driven by the aging population.


The 2023 Impact of Inflammatory Bowel Disease in Canada: COVID-19 and IBD

September 2023

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58 Reads

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11 Citations

Journal of the Canadian Association of Gastroenterology

The COVID-19 pandemic had a monumental impact on the inflammatory bowel disease (IBD) community. At the beginning of the pandemic, knowledge on the effect of SARS-CoV-2 on IBD was lacking, especially in those with medication-suppressed immune systems. Throughout the pandemic, scientific literature exponentially expanded, resulting in clinical guidance and vaccine recommendations for individuals with IBD. Crohn’s and Colitis Canada established the COVID-19 and IBD Taskforce to process and communicate rapidly transforming knowledge into guidance for individuals with IBD and their caregivers, healthcare providers, and policy makers. Recommendations at the onset of the pandemic were based on conjecture from experience of prior viruses, with a precautionary principle in mind. We now know that the risk of acquiring COVID-19 in those with IBD is the same as the general population. As with healthy populations, advanced age and comorbidities increase the risk for severe COVID-19. Individuals with IBD who are actively flaring and/or who require high doses of prednisone are susceptible to severe COVID-19 outcomes. Consequently, sustaining maintenance therapies (e.g., biologics) is recommended. A three-dose mRNA COVID-19 vaccine regimen in those with IBD produces a robust antibody response with a similar adverse event profile as the general population. Breakthrough infections following vaccine have been observed, particularly as the virus continues to evolve, which supports receiving a bivalent vaccine booster. Limited data exist on the impact of IBD and its therapies on long-term outcomes following COVID-19. Ongoing research is necessary to address new concerns manifesting in those with IBD throughout the evolving pandemic.


Trends in hospitalization rates in Canadian people with inflammatory bowel disease
The 2023 Impact of Inflammatory Bowel Disease in Canada: Direct Health System and Medication Costs

September 2023

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76 Reads

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9 Citations

Journal of the Canadian Association of Gastroenterology

Healthcare utilization among people living with inflammatory bowel disease (IBD) in Canada has shifted from inpatient management to outpatient management; fewer people with IBD are admitted to hospitals or undergo surgery, but outpatient visits have become more frequent. Although the frequency of emergency department (ED) visits among adults and seniors with IBD decreased, the frequency of ED visits among children with IBD increased. Additionally, there is variation in the utilization of IBD health services within and between provinces and across ethnocultural and sociodemographic groups. For example, First Nations individuals with IBD are more likely to be hospitalized than the general IBD population. South Asian children with Crohn’s disease are hospitalized more often than their Caucasian peers at diagnosis, but not during follow-up. Immigrants to Canada who develop IBD have higher health services utilization, but a lower risk of surgery compared to individuals born in Canada. The total direct healthcare costs of IBD, including the cost of hospitalizations, ED visits, outpatient visits, endoscopy, cross-sectional imaging, and medications are rising rapidly. The direct health system and medication costs of IBD in Canada are estimated to be 3.33billionin2023,potentiallyrangingfrom3.33 billion in 2023, potentially ranging from 2.19 billion to 4.47billion.Thisisanincreasefromanestimated4.47 billion. This is an increase from an estimated 1.28 billion in 2018, likely due to sharp increases in the use of biologic therapy over the past two decades. In 2017, 50% of total direct healthcare costs can be attributed to biologic therapies; the proportion of total direct healthcare costs attributed to biologic therapies today is likely even greater.


The 2023 Impact of Inflammatory Bowel Disease in Canada: Access to and Models of Care

September 2023

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71 Reads

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11 Citations

Journal of the Canadian Association of Gastroenterology

Rising compounding prevalence of inflammatory bowel disease (IBD) (Kaplan GG, Windsor JW. The four epidemiological stages in the global evolution of inflammatory bowel disease. Nat Rev Gastroenterol Hepatol. 2021;18:56–66.) and pandemic-exacerbated health system resource limitations have resulted in significant variability in access to high-quality, evidence-based, person-centered specialty care for Canadians living with IBD. Individuals with IBD have identified long wait times, gaps in biopsychosocial care, treatment and travel expenses, and geographic and provider variation in IBD specialty care and knowledge as some of the key barriers to access. Care delivered within integrated models of care (IMC) has shown promise related to impact on disease-related outcomes and quality of life. However, access to these models is limited within the Canadian healthcare systems and much remains to be learned about the most appropriate IMC team composition and roles. Although eHealth technologies have been leveraged to overcome some access challenges since COVID-19, more research is needed to understand how best to integrate eHealth modalities (i.e., video or telephone visits) into routine IBD care. Many individuals with IBD are satisfied with these eHealth modalities. However, not all disease assessment and monitoring can be achieved through virtual modalities. The need for access to person-centered, objective disease monitoring strategies, inclusive of point of care intestinal ultrasound, is more pressing than ever given pandemic-exacerbated restrictions in access to endoscopy and cross-sectional imaging. Supporting learning healthcare systems for IBD and research relating to the strategic use of innovative and integrative implementation strategies for evidence-based IBD care interventions are greatly needed. Data derived from this research will be essential to appropriately allocating scarce resources aimed at improving person-centred access to cost-effective IBD care.


Citations (55)


... 34,49 Additionally, our sample may not have been representative of all children newly diagnosed with IBD; however, we previously demonstrated that >75% of incident pediatriconset cases in Ontario are treated at one of the tertiary care centers involved in CIDsCaNN recruitment. 50 However, not all children with IBD treated at these centers participated in CIDsCaNN. While several sociodemographic characteristics (eg, age, socioeconomic status) are generally similar across provinces, there are ethnocultural differences across provinces which may impact the generalizability of our findings to other provinces. ...

Reference:

High Healthcare Costs in Childhood Inflammatory Bowel Disease: Development of a Prediction Model Using Linked Clinical and Health Administrative Data
Variation in the Care of Children with Inflammatory Bowel Disease Within and Across Canadian Provinces: A Multi-Province Population-Based Cohort Study

... According to the four epidemiological stages, IBD in Western countries has entered the stage of 'compounding prevalence' where incidence has stabilized or declined, yet prevalence continues to rise [4]. Projections indicate that by 2035, IBD prevalence in Canada will reach 1.1% [5,6], and 1.02% in Lothian, Scotland by 2028 [7]. By contrast, regions such as Asia and Latin America are experiencing the 'acceleration in incidence' stage, with rapid surges in both incidence and prevalence of IBD [4,8]. ...

Forecasting the Incidence and Prevalence of Inflammatory Bowel Disease: A Canadian Nationwide Analysis

The American Journal of Gastroenterology

... A more recent study from Northern California conducted between 1998 and 2010 found SIRs for CRC in IBD patients of 1.6 [19]. The most recent (2017-2020) population-based study from Ontario reported an SIR of 1.7 [20] for CRC in IBD patients compared to the general population. Conversely, a Danish nationwide study from 1999 to 2008 even reported a lower CRC risk (SIR: 0.5) [21]. ...

961 TEMPORAL TRENDS AND RELATIVE RISKS OF INTESTINAL AND EXTRAINTESTINAL CANCERS IN PERSONS WITH INFLAMMATORY BOWEL DISEASES: A POPULATION-BASED STUDY FROM A LARGE CANADIAN PROVINCE
  • Citing Conference Paper
  • May 2023

Gastroenterology

... Genetic testing is now considered a standard of care for children with IBD under the age of 6 years old. A study by El-Matary et al. in 2023, on 1000 Canadian children with VEO-IBD revealed that 7.8% of them have an identifiable monogenic cause [70]. There is also a benefit in testing adult patients with IBD since a minority of them may have undiagnosed monogenic causes [46]. ...

The 2023 Impact of Inflammatory Bowel Disease in Canada: Special Populations—Children and Adolescents with IBD

Journal of the Canadian Association of Gastroenterology

... In 2017, biologics accounted for approximately 50% of IBD-related health care costs, a proportion that has likely increased since then. 2 Reports from several provinces in Canada indicate a rapid rise in the use of biologics for both Crohn disease and UC. 9 In the conventional treatment approach for IBD, medication follows a therapeutic hierarchy: starting with tier I 5-aminosalicylic acid, followed sequentially by tier II corticosteroids (prednisone or budesonide), tier III immunomodulators (azathioprine, 6-mercaptopurine, or methotrexate), and finally tier IV biologic drugs (infliximab, adalimumab, or certolizumab pegol). 10 Alternatively, the top-down or accelerated step-up approach administers more potent drugs early in patient care, often immediately after diagnosis. ...

The 2023 Impact of Inflammatory Bowel Disease in Canada: Direct Health System and Medication Costs

Journal of the Canadian Association of Gastroenterology

... Khrom et al. 14 found that males were more likely to have perianal disease, colonic-only disease location in CD, and also more extensive disease in UC. Moreover, females with IBD have been shown to be more anxious 15 and to have more healthcare consumption than males 16 . ...

The 2023 Impact of Inflammatory Bowel Disease in Canada: The Influence of Sex and Gender on Canadians Living With Inflammatory Bowel Disease

Journal of the Canadian Association of Gastroenterology

... As such, our findings address the limitations of previous research on unmet healthcare needs, which largely involves provider-focused definitions of unmet needs [6] or involves qualitative investigation on unmet needs of a selected sample of patients. [23] While important and necessary, this previous research is insufficient to advocate for and enable the needed multidisciplinary healthcare at a population level. This work is complimentary to previous provider-focused research, supplementing with the necessary population-level, patient perspective on unmet needs, and identifying avenues for improved healthcare in the Canadian context. ...

The 2023 Impact of Inflammatory Bowel Disease in Canada: Epidemiology of IBD

Journal of the Canadian Association of Gastroenterology

... 4 For patients with clinical and/or endoscopic response to a given single therapy, the improvement is clinically significant, but if patients do not achieve endoscopic remission, then ongoing endoscopic disease activity increases the risk of fistulizing and stricturing disease complications, malnutrition, poor quality of life, and colorectal cancer. [5][6][7] There remains a need for treatment options for patients with severe CD who are either non-responsive to medical therapy or who have had a response but have not achieved endoscopic remission to FDA-approved therapies. Mycophenolate mofetil (MMF) is a small molecule immune suppressant that exhibits a cytostatic effect on T and B lymphocytes, resulting in decreased recruitment of lymphocytes and monocytes and thus decreased TNF-α and IL-1. ...

The 2023 Impact of Inflammatory Bowel Disease in Canada: Cancer and IBD

Journal of the Canadian Association of Gastroenterology

... Despite several effort s to give clear guidance on the management of IBD by guidelines, consensus, position papers, there is still heterogeneity in the overall quality of care standards. In some countries and regions, there have been several initiatives to develop valid outcomes to assess and measure quality of care in IBD [1][2][3][4][5][6]. ...

The 2023 Impact of Inflammatory Bowel Disease in Canada: Access to and Models of Care

Journal of the Canadian Association of Gastroenterology

... Studies have shown that mental disorders are also important causes of ulcerative colitis, especially in elderly women and cancer patients [23]. Mental health problems are an easily overlooked factor that needs to be taken seriously and differentiated for diagnosis. ...

The 2023 Impact of Inflammatory Bowel Disease in Canada: Mental Health and Inflammatory Bowel Disease

Journal of the Canadian Association of Gastroenterology