Geographic variation in the provider of screening colonoscopy in Canada: a population-based cohort study

Provision of colonoscopy in rural settings: A qualitative assessment of provider context, barriers, facilitators, and capacity

PURPOSE

Colonoscopy can prevent morbidity and mortality from colorectal cancer (CRC) and is the most commonly used screening method in the United States. Barriers to colonoscopy at multiple levels can contribute to disparities. Yet, in rural settings, little is known about who delivers colonoscopy and facilitators and barriers to colonoscopy access through screening completion.

METHODS

We conducted a qualitative study with providers in rural Oregon who worked in endoscopy centers or primary care clinics. Semistructured interviews, conducted in July and August, 2021, focused on clinician experiences providing colonoscopy to rural Medicaid patients, including workflows, barriers, and access. We used thematic analysis, through immersion crystallization, to analyze interview transcripts and develop emergent themes.

FINDINGS

We interviewed 19 providers. We found two categories of colonoscopy providers: primary care providers (PCPs) doing colonoscopy on their own patients (n = 9; 47%) and general surgeons providing colonoscopy to patients referred to their services (n = 10; 53%). Providers described barriers to colonoscopy at the provider, community, and patient levels and suggested patient supports could help overcome them. Providers found current colonoscopy capacity sufficient, but noted PCPs trained to perform colonoscopy would be key to continued accessibility. Finally, providers shared concerns about the shrinking number of PCP endoscopists, especially with anticipated increased screening demand related to the CRC screening guideline shift.

CONCLUSIONS

These themes reflect opportunities to address multilevel barriers to improve access, colonoscopy capacity, and patient education approaches. Our results highlight that PCPs are an essential part of the workforce that provides colonoscopy in rural areas.

Evaluation of the quality of colonoscopies performed by Alberta North Zone surgeons, family physicians and internists: a quality improvement initiative

BACKGROUND

In Canada, endoscopy is primarily performed by gastroenterologists and surgeons, and some studies report that colonoscopies performed by nongastroenterologists have more complications and higher rates of future colorectal cancer. Our objective was to determine whether rural-based nongastroenterologist endoscopists are achieving quality benchmarks in colonoscopy.

METHODS

This quality improvement initiative prospectively evaluated 6 key performance indicators (KPIs) (cecal intubations, polyp detection [males and females; for first-time colonoscopies on patients aged ≥ 50 yr], bowel preparations, patient comfort and withdrawal times) on consecutive colonoscopies performed by participating Alberta North Zone endoscopists. The study period was June 2018 to March 2020. Overall and individual endoscopist's KPIs were compared with standard benchmarks. Additional performance indicators included mean number of polyps per colonoscopy and an exploration of study-defined sedation-related level of consciousness.

RESULTS

Data were collected on 6212 colonoscopies performed by 16 endoscopists (9 surgeons, 5 family physicians and 2 internists) in 6 hospitals. All 6 KPI benchmarks were achieved when results were pooled over all endoscopists in the study. Overall, cecal intubation occurred in 6006 of 6209 (96.7%, 95% confidence interval 94.5%-99.0%) cases. Polyp detection was 65.9% (592/898) and 49.8% (348/699) for male and female patients, respectively, aged 50 years or older. Variability in individual endoscopist results existed, especially for the mean number of polyps per 100 colonoscopies and sedation-related level of consciousness.

INTERPRETATION

Overall, Alberta North Zone endoscopists are performing high-quality colonoscopies, collectively achieving all 6 KPIs. To understand endoscopic performance and encourage individual and group reflection on endoscopic practices, Canadian endoscopists are encouraged to participate in similar colonoscopy quality initiative studies.

Impact of socioeconomic status and road distance to hospital on perforated appendicitis rates at a large rural referral centre

BACKGROUND

Socioeconomic status and distance from hospital have been shown to be associated with poor surgical outcomes related to acute appendicitis. Indigenous populations experience greater socioeconomic disadvantages and poorer healthcare access than their non-Indigenous counterparts. This study aims to determine whether socioeconomic status and road distance from hospital are predictors of perforated appendicitis. It will also compare surgical outcomes of appendicitis between Indigenous and non-Indigenous populations.

METHODS

We performed a 5-year retrospective study of all patients who underwent appendicectomy for acute appendicitis at a large rural referral centre. Patients were identified using the hospital database for theatre events coded as appendicectomy. Regression modelling was used to determine if socioeconomic status and road distance from hospital were associated with perforated appendicitis. The outcomes of appendicitis between Indigenous and non-Indigenous populations were compared.

RESULTS

Seven hundred and twenty-two patients were included in this study. The rate of perforated appendicitis was not significantly impacted by socioeconomic status (OR 0.993, 95% CI 0.98-1.006, P = 0.316) or road distance from hospital (OR = 0.911, 95% CI 0.999-1.001, P = 0.911). Indigenous patients did not have a significantly higher rate of perforation compared to non-Indigenous patients (P = 0.849) despite having overall lower socioeconomic status (P = 0.005) and longer road distance from hospital (P = 0.025).

CONCLUSION

Lower socioeconomic status and longer road distance from hospital were not associated with an increased risk of perforated appendicitis. Indigenous populations have poorer socioeconomic status and longer road distance to hospital but did not have higher rates of perforated appendicitis.

Peri-colonoscopy Implications of Sodium-Glucose Cotransporter-2 Inhibitor Therapy: A Mini-review of Available Evidence

Sodium-glucose cotransporter-2 inhibitors (SGLT2i) are a class of oral glucose-lowering agents commonly used for the treatment of type 2 diabetes. With increased use, there has been an increase in the incidence of the rare but life-threatening complication of euglycemic diabetic ketoacidosis. A common but underappreciated precipitant is colonoscopy. In this work, we outline the pathophysiology of the interaction between colonoscopy and SGLT2i use, the evidence regarding SGLT2i use in the periprocedural setting and Australian Diabetes Society guidelines.

General surgery in Canada: current scope of practice and future needs

BACKGROUND

The scope of practice of general surgeons in Canada is highly variable. The objective of this study was to examine the demographic characteristics of general surgeons in Canada and compare surgical procedures performed across community sizes and specialties.

METHODS

Data from the Canadian Institute for Health Information's National Physician Database were used to analyze fee-for-service (FFS) care provided by general surgeons and other providers across Canada in 2015/16.

RESULTS

Across 8 Canadian provinces, 1669 general surgeons provided FFS care. The majority of the surgeons worked in communities with more than 100 000 residents (71%), were male (78%), were aged 35-54 years (56%) and were Canadian medical graduates (76%). Only 7% of general surgeons practised in rural areas and 14% in communities with between 10 000 and 50 000 residents. Rural communities were significantly more likely to have surgeons who were international medical graduates or who were older than 65 years. The surgical procedures most commonly performed by general surgeons were hernia repairs, gallbladder and biliary tree surgery, excision of skin tumours, colon and intestine resections and breast surgery. Many general surgeons performed procedures not listed in their Royal College of Physicians and Surgeons of Canada training objectives.

CONCLUSION

Canadian general surgeons provide a wide array of surgical services, and practice patterns vary by community size. Surgeons practising in rural and small communities require proficiency in skills not routinely taught in general surgery residency. Opportunities to acquire these skills should be available in training to prepare surgeons to meet the care needs of Canadians.

Geographic variation in short and long sleep duration and poor sleep quality: a multilevel analysis using the 2015-2018 Canadian community health survey

BACKGROUND

There is a dearth of evidence on geographic variation in sleep duration and quality, and about the effect of geographic location or "place" on sleep. The objective was to assess the magnitude of geographic variation in sleep duration and sleep quality in Canada, while controlling for individual-level factors.

METHODS

Data from the 2015-2018 cycles of the Canadian Community Health Survey were used. The sample consisted of 96,484 respondents from 6 provinces. Multilevel logistic regression techniques were used to assess the magnitude of geographic variation in self-reported measures of short and long sleep duration and 3 indicators of sleep quality (difficulty initiating and maintaining sleep, daytime sleepiness, and finding sleep refreshing) across geographic areas, defined by the boundaries of Forward Sortation Areas.

RESULTS

Overall, 45.31% of respondents reported short sleep, 2.31% reported long sleep, 46.97% had difficulty initiating and maintaining sleep, 29.50% had daytime sleepiness, and 39.11% did not find their sleep refreshing. After controlling for individual-level factors, geographic variation accounted for 4.00% and 13.67% of overall variance in short and long sleep duration, respectively; the corresponding estimates for difficulty initiating and maintaining sleep, daytime sleepiness, and finding sleep refreshing were 3.04%, 3.80%, and 5,08%, respectively.

CONCLUSIONS

There is a significant level of geographic variation in short and long sleep duration and sleep quality and this variation cannot be accounted for by differential distribution of individual characteristics across geographic areas. Future research is warranted to examine specific contextual factors that can account for this variation.

Geographic and socioeconomic predictors of perforated appendicitis: A national Canadian cohort study

BACKGROUND/PURPOSE

Appendiceal perforation significantly impacts the outcomes of pediatric appendicitis. While socioeconomic status affects perforation risk in the United States, these effects should dissipate in a universal healthcare system. The specific spatial patterns associated with perforation have also never been delineated. This study examined the effect of geography and SES on appendiceal perforation in Canada's universal healthcare system.

METHODS

Using administrative databases, Canadian children with appendicitis from 2008 to 2015 were identified. Perforation rates were examined based on rurality, distance from treating hospital, and SES. A spatial analysis identified neighborhoods with high perforation rates. Predictors of high perforation clusters were determined using logistic regression.

RESULTS

Over the study period, 43,055 children with appendicitis were identified. The overall perforation rate was 31.5%. Rural neighborhoods and those >125 km from the treating hospital were more likely to be within a high perforation cluster (OR 2.39, 95%CI 1.31-4. 02, p = 0.001; and OR 2.55, 95%CI 1.35-4.47, p = 0.001, respectively). Children in high perforation clusters were more likely to suffer complications. SES was not associated with perforation rates.

CONCLUSIONS

In this population-based study, appendiceal perforation was not a function of SES, but a spatial phenomenon. These findings highlight disparities in access to surgical care in Canada.

LEVEL OF EVIDENCE

Prognosis study, level II.