The Aarhus statement: improving design and reporting of studies on early cancer diagnosis

Predictors and consequences of different pathways to emergency diagnosis of cancer in England: Evidence from linked national audit and cancer registration data

BACKGROUND

Diagnosis of cancer soon after emergency care use is associated with adverse prognosis. We aimed to more precisely explore different definitions of emergency diagnosis.

METHODS

For 43,383 patients in the National Cancer Diagnosis Audit and Routes to Diagnosis datasets, we defined two emergency care pathways: emergency referral (Type-A) and emergency hospital admission (Type-B). We examined patient and tumour factors associated with each pathway excluding the other, and in combination (Type-A+B), in particular their concordance and prognostic implications for short-term mortality.

RESULTS

One in five patients (19 %) were diagnosed following emergency care use: 4 % through Type-A only, 7 % through Type-B only, and 8 % through Type-A+B. Higher co-morbidity, deprivation, advanced stage and certain cancer sites were associated with greater risk of emergency diagnosis. Concordance of emergency diagnosis pathway between Type-A and Type-B increased with age, co-morbidity and certain cancer sites. Patients with non-alarm symptoms were more likely to self-refer (Type-A) to an Emergency Department than patients with alarm symptoms. Associations with higher short-term mortality were strongest for Type-A+B.

CONCLUSIONS

We profile different pathways to emergency diagnosis and identify opportunities to improve diagnostic processes for these patients.

Clinical characterisation of patients diagnosed with cancer following emergency self-referral

BACKGROUND

Despite their frequency and potential impact on prognosis, cancers diagnosed via self-referral to the emergency department are poorly documented. We conducted a detailed analysis of cancer patients diagnosed following emergency self-referral and compared them with those diagnosed following emergency referral from primary care. Given the challenges associated with measuring intervals in the emergency self-referral pathway, we also aimed to provide a definition of the diagnostic interval for these cancers.

METHODS

A retrospective observational analysis was performed on patients diagnosed with 13 cancers, either following emergency self-referral or emergency referral from primary care. We analysed demographics, tumour stage, clinical data (including 28 presenting symptoms categorised by body systems), and diagnostic intervals by cancer site, then testing for differences between pathways.

RESULTS

Out of 3624 patients, 37 % were diagnosed following emergency self-referral and 63 % via emergency referral from primary care. Emergency self-referrals were associated with a higher likelihood of being diagnosed with cancers manifesting with localising symptoms (e.g., breast and endometrial cancer), whereas the likelihood of being diagnosed with cancers featuring nonspecific symptoms and abdominal pain (e.g., pancreatic and ovarian cancer) was higher among patients referred from primary care. Diagnostic intervals in self-referred patients were half as long as those in patients referred from primary care, with most significant differences for pancreatic cancer (28 [95 % CI -34 to -23] days shorter, respectively).

CONCLUSION

These findings enrich the best available evidence on cancer diagnosis through emergency self-referral and showed that, compared with the emergency referral pathway from primary care, these patients had a significantly increased likelihood of presenting with symptoms that are strongly predictive of cancer. Since the starting point for the diagnostic interval in these patients is their emergency presentation, comparing it with that of those referred from primary care as an emergency is likely to result in biased data.

Technology for fast-tracking high-risk head and neck cancer referrals: Co-designing with patients

BACKGROUND

Head and Neck Cancer (HNC) is the eighth most prevalent global cancer. Timely recognition of symptoms is crucial for reducing mortality rates. The EVolution of a patiEnt-REported symptom-based risk stratification sySTem to redesign the suspected Head and Neck cancer referral pathway (EVEREST-HN) study aims to develop and evaluate a risk stratification tool using patient reported symptoms, which will be populated remotely in the community before the patient is seen by the clinician to hasten HNC diagnosis. EVEREST-HN will design a patient SYmptom iNput Clinical (SYNC) system to gather patient symptom data and calculate a risk score to aid clinicians in identifying high-risk cases. This identification potentially allows for high-risk patients to be seen sooner, thereby improving patient outcomes.

METHODS

Three workshop sessions were conducted involving a total of 17 unique participants, with several contributing to multiple sessions: nine in the co-design session, six in the validation session, and nine in the evaluation session. The co-design session employed online collaboration with patients' representatives. Thematic analysis was used to identify requirements and concerns informing the development of a low-fidelity prototype. The validation session assessed whether the prototype aligned with patient expectations. In the evaluation session, participants interacted with an online prototype and provided further feedback.

RESULTS

During the co-design workshop, participants emphasized the need for a concise and clear SYNC system questionnaire for reporting suspected HNC symptoms. Concerns were raised about questionnaire length, language clarity, and the inclusion of probing questions. Participants suggested concise questions using lay language, incorporating visual aids for topics like alcohol and tobacco use, and making the sexual activity question optional. Recommendations included diverse language options, hard copies for non-English speakers, and phone call options for those uncomfortable with screen-based technology. The validation workshop confirmed that the prototype reflected participants' ideas. Feedback highlighted the need for call-back features to help those not confident with technology and the need to present symptom questions first before social background questions. Feedback from the evaluation demonstrated a commitment to efficiency, and continuous improvement.

CONCLUSION

This study aims to develop the SYNC system to enhance efficiency of suspected HNC referrals. The workshops highlighted the importance of end-user inclusiveness in the system development life cycle, with collaboration with stakeholders and repeated feedback, providing crucial insights for ensuring the SYNC system effectively addresses the needs and concerns of patients in the context of HNC diagnosis.

Diagnostic error in mental health: a review

Diagnostic errors are associated with patient harm and suboptimal outcomes. Despite national scientific efforts to advance definition, measurement and interventions for diagnostic error, diagnosis in mental health is not well represented in this ongoing work. We aimed to summarise the current state of research on diagnostic errors in mental health and identify opportunities to align future research with the emerging science of diagnostic safety. We review conceptual considerations for defining and measuring diagnostic error, the application of these concepts to mental health settings, and the methods and subject matter focus of recent studies of diagnostic error in mental health. We found that diagnostic error is well understood to be a problem in mental healthcare. Although few studies used clear definitions or frameworks for understanding diagnostic error in mental health, several studies of missed, wrong, delayed and disparate diagnosis of common mental disorders have identified various avenues for future research and development. Nevertheless, a lack of clear consensus on how to conceptualise, define and measure errors in diagnosis will pose a barrier to advancement. Further research should focus on identifying preventable missed opportunities in the diagnosis of mental disorders, which may uncover generalisable opportunities for improvement.

Musculoskeletal Symptoms and Misdiagnoses in Children With Acute Myeloid Leukaemia: A Nationwide Cohort Study

OBJECTIVES

Childhood cancer often presents with non-specific signs and symptoms that might mimic non-malignant disorders including musculoskeletal diseases, potentially leading to rheumatic and orthopaedic misdiagnoses. We aimed to compare clinical presentation, diagnostic interval and survival in paediatric acute myeloid leukaemia (AML) with and without initial musculoskeletal symptoms.

METHODS

This nationwide retrospective, cohort study reviewed medical records of 144 children below 15 years diagnosed with AML in Denmark from 1996 to 2018.

RESULTS

Musculoskeletal symptoms occurred in 29% (42/144) of children with AML and 8% (11/144) received an initial musculoskeletal misdiagnosis, being mainly non-specific and pain-related. The children with and without musculoskeletal symptoms did not differ markedly up to the diagnosis of AML and blood counts were affected equally in both groups. However, the children with prior musculoskeletal symptoms were more likely to have elevated levels of LDH and ferritin. Furthermore, they revealed a tendency towards a longer total interval (median 53 days vs. 32 days, p = 0.07), but the overall survival did not differ.

CONCLUSION

AML should be considered as an underlying cause in children with unexplained musculoskeletal symptoms and abnormal blood counts. Concomitant elevation of LDH and ferritin should strengthen the suspicion.

Time to Diagnosis and Treatment for Ovarian Cancer and Associations with Outcomes: A Systematic Review

Background: Ovarian cancer is commonly diagnosed symptomatically at an advanced stage. Better survival for early disease suggests improving diagnostic pathways may increase survival. This study examines literature assessing diagnostic intervals and their association with clinical and psychological outcomes. Methods: Medline, EMBASE, and EmCare databases were searched for studies including quantitative measures of at least one interval, published between January 1, 2000 and August 9, 2022. Interval measures and associations (interval, outcomes, analytic strategy) were synthesized. Risk of bias of association studies was assessed using the Aarhus Checklist and ROBINS-E tool. Results: In total, 65 papers (20 association studies) were included and 26 unique intervals were identified. Interval estimates varied widely and were impacted by summary statistic used (mean or median) and group focused on. Of Aarhus-defined intervals, patient (symptom to presentation, n = 23; range [median]: 7-168 days) and diagnostic (presentation to diagnosis, n = 22; range [median]: 7-270 days) were most common. Nineteen association studies examined survival or stage outcomes with most, including five low risk-of-bias studies, finding no association. Conclusions: Studies reporting intervals for ovarian cancer diagnosis are limited by inconsistent definitions and reporting. Greater utilization of the Aarhus statement to define intervals and appropriate analytic methods is needed to strengthen findings from future studies.

Dissecting the Prediagnostic Journey to Identify Opportunities for Early Detection of Esophageal Cancer: Findings From a High-Risk Area in Rural China

PURPOSE

Survival from esophageal cancer (EC) is poor, partly reflecting the delay in diagnosis. To inform the potential measures for downstaging the disease, we estimated diagnosis delay, that is, the length of interval from symptom-to-diagnosis (STD), and investigated its correlates among patients with EC in a high-risk resource-limited rural area in China.

METHODS

Patients newly diagnosed with EC (N = 411) were recruited in a secondary hospital in Henan province in China between August 1, 2018, and October 21, 2020. A face-to-face structured questionnaire was used to collect patient-level and health-seeking data from patients and/or proxies. Association between the length of STD interval and stage at diagnosis was examined using logistic regression. Correlates of the length of the STD interval were identified using negative binomial regression.

RESULTS

The median STD interval was 61 (IQR, 24-155) days, with the time from symptom onset to first health care contact representing 90.1% (IQR, 7.8%-100%) of its length. The odds of being diagnosed at stages III-IV increased by 3% (age- and sex-adjusted odds ratio, 1.03 [95% CI, 0.99 to 1.08]) for every 2-month increase in the STD interval. Higher awareness of EC risk factors was associated with shorter STD intervals (incidence rate ratio [95% CI] for awareness score ≥2 v ≤0: 0.65 [0.46 to 0.93]), whereas patients who first visited secondary or tertiary/cancer hospitals had much longer STD intervals than those who first visited a primary health care facility (1.69 [1.19 to 2.40]; 2.22 [1.24 to 3.97]).

CONCLUSION

The median length of the STD interval was 2 months, but with considerable interindividual variability. Improving EC awareness, coupled with effective referral pathways, may promote timely diagnosis of this disease.

Analysis of scientific publications on oral cancer diagnosis delays: a bibliometric study over 22 years

BACKGROUND

The area of oncology still lacks bibliometric studies that investigate the diagnostic interval of oral cancer. This study proposed to carry out a bibliometric analysis of epidemiological studies that investigated the diagnosis of oral cancer between 2002 to 2024.

MATERIAL AND METHODS

On April, 2024, the Scopus and Web of Science databases were explored, and the selected articles underwent bibliometric analysis of performance and scientific mapping of journals, authors, institutions, and countries, as well as the predominant topics and trends in research into the diagnosis of oral cancer through an analysis of references and co-occurrence of key words. The analyzes were carried out using the R extension package, Bibliometrix, and the VOSviewer software.

RESULTS

A total of 532 documents were included. China contributed the highest number of publications (36.71%) and total citations [1,584]. Seoane J was the most prolific author [16 (h-index: 9)], while Warnakulasuriya S had the highest total link strength [282 (h-index: 7)] in co-citations. Oral Oncology was identified as the most prolific [231 (72.64%)], co-cited and impactful journal (h-index: 13). Explosions of citations were found for keywords such as "early diagnosis", "biomarker", "saliva", "precancer" and "prognosis", making it evident that in the field of oral cancer diagnosis there is room for new studies focusing in reducing the diagnostic interval, with the research hotspots being the terms "biomarkers", "imaging diagnosis" and "gene expression".

CONCLUSIONS

This study provides valuable information that can help researchers and institutions align their research activities according to emerging themes, establish collaborations and allocate resources effectively.

Wait times and breast cancer survival: a population-based retrospective cohort study using CanIMPACT data

PURPOSE

The time from breast cancer surgery to chemotherapy has been shown to affect survival outcomes; however, the effect of time from first breast cancer-related healthcare contact to first cancer specialist consultation, or the time from first breast cancer-related healthcare contact to adjuvant chemotherapy on survival has not been well explored. We aimed to determine whether various wait times along the breast cancer treatment pathway (contact-to-consultation, contact-to-chemotherapy, surgery-to-chemotherapy) were associated with overall survival in women within the Canadian province of Ontario.

METHODS

We performed a population-based retrospective cohort study of women diagnosed with stage I-III breast cancer in Ontario between 2007 and 2011 who received surgery and adjuvant chemotherapy. This was the Ontario cohort of a larger, nationwide study (the Canadian Team to improve Community-Based Cancer Care along the Continuum - CanIMPACT). We used Cox-proportional hazards regression to determine the association between the contact-to-consultation, contact-to-chemotherapy, and surgery-to-chemotherapy intervals and overall survival while adjusting for cancer stage, age, comorbidity, neighborhood income, immigration status, surgery type, and method of cancer detection.

RESULTS

Among 12,782 breast cancer patients, longer surgery-to-chemotherapy intervals (HR 1.13, 95% CI 1.03-1.18 per 30-day increase), but not the contact-to-consultation (HR 0.979, 95% CI 0.95-1.01 per 30-day increase), nor the more comprehensive contact-to-chemotherapy intervals (HR 1.00, 95% CI 0.98-1.02 per 30-day increase) were associated with decreased survival in our adjusted analyses.

CONCLUSION

Our findings emphasize the prognostic importance of a shorter surgery-to-chemotherapy interval, whereas the contact-to-consultation and contact-to-chemotherapy intervals have less impact on survival outcomes.

Multiple myeloma: unplanned diagnostic pathways and association with risk factors and survival - a nationwide register-based cohort study in Denmark

BACKGROUND

Multiple myeloma often presents with vague and non-specific symptoms. Many patients are diagnosed in unplanned rather than elective (planned) diagnostic pathways. This study investigates the diagnosis of multiple myeloma in unplanned pathways and the association with patient characteristics, disease profile, and survival.

METHODS

We conducted a nationwide register-based study, including all patients diagnosed with multiple myeloma in Denmark in 2014-2018. Patients were categorised as diagnosed in an unplanned pathway if registered with an acute admission within 30 days prior to the multiple myeloma diagnosis and no other previously registered pathway to this diagnosis. Unplanned pathways were compared to all other pathways combined.

RESULTS

We included 2,213 patients diagnosed with multiple myeloma, hereof 32% diagnosed in an unplanned pathway. Comorbidity, no prior cancer diagnosis, a history of few visits to the general practitioner (GP), multiple myeloma complications at diagnosis, high-risk cytogenetics, and advanced cancer stage were associated with a higher probability of being diagnosed in an unplanned pathway. For example, 24.4% (95% confidence interval (CI): 21.8-27.0) of patients with low comorbidity (Charlson Comorbidity Index (CCI) score 0) were diagnosed in an unplanned pathway as were 50.9% (95% CI: 45.6-56.1) of patients with high comorbidity (CCI score 3+). For patients with dialysis need at the time of diagnosis the probability was 66.0% (95% CI 54.2-77.8) and 30.9% (95% CI: 28.9-32.9) for patients with no dialysis need. Patients diagnosed in an unplanned pathway had inferior survival (hazard ratio 1.44 (95% CI: 1.26-1.64)). However, this association was not seen in analyses restricted to patients surviving for more than three years.

CONCLUSIONS

High comorbidity level, few usual GP visits, advanced disease status at diagnosis, and complications were associated with diagnosis in an unplanned pathway. Further, patients diagnosed in an unplanned pathway had inferior survival. Promoting earlier diagnosis and preventing unplanned pathways may help improve survival in multiple myeloma.

Income differences in time to colon cancer diagnosis

INTRODUCTION

People with low income have worse outcomes throughout the cancer care continuum; however, little is known about income and the diagnostic interval. We described diagnostic pathways by neighborhood income and investigated the association between income and the diagnostic interval.

METHODS

This was a retrospective cohort study of colon cancer patients diagnosed 2007-2019 in Ontario using routinely collected data. The diagnostic interval was defined as the number of days from the first colon cancer encounter to diagnosis. Asymptomatic pathways were defined as first encounter with a colonoscopy or guaiac fecal occult blood test not occurring in the emergency department and were examined separately from symptomatic pathways. Quantile regression was used to determine the association between neighborhood income quintile and the conditional 50th and 90th percentile diagnostic interval controlling for age, sex, rural residence, and year of diagnosis.

RESULTS

A total of 64,303 colon cancer patients were included. Patients residing in the lowest income neighborhoods were more likely to be diagnosed through symptomatic pathways and in the emergency department. Living in low-income neighborhoods was associated with longer 50th and 90th-percentile symptomatic diagnostic intervals compared to patients living in the highest income neighborhoods. For example, the 90th percentile diagnostic interval was 15 days (95% CI 6-23) longer in patients living in the lowest income neighborhoods compared to the highest.

CONCLUSION

These findings reveal income inequities during the diagnostic phase of colon cancer. Future work should determine pathways to reducing inequalities along the diagnostic interval and evaluate screening and diagnostic assessment programs from an equity perspective.

Patient- and parent-reported diagnostic delay in children with central nervous system tumors in Denmark

BACKGROUND

Diagnostic delays in childhood tumors of the central nervous system (CNS) pose a significant challenge. The aim of this study was to map diagnostic delay and presenting symptoms in Denmark.

METHODS

The study was a retrospective questionnaire study, mapping delay and symptoms in pediatric patients (0-17 years), diagnosed with a CNS tumor from 2015 to 2019. Descriptive analysis was performed to measure delay in days, reported as total diagnostic interval (TDI), patient interval (PI), and diagnostic interval (DI). Analysis of symptoms, contacts to healthcare professionals, and socioeconomic status was also performed.

RESULTS

We included 89 patients (median age 7.0 years, 54% male). The TDI was median of 106 days (range: 0-2694 days). Low-grade tumors had longer TDI than high-grade tumors (125 vs. 43 days; p ≤ .02). Patients aged 15-17 displayed the longest TDI (median 665 days). Number of symptoms at onset were inversely associated with longer TDI in patients presenting one symptom (247 days) and patients presenting two to three (110 days) or greater than three complaints (66 days). PI was not associated with sex (p = .14), tumor grade (p = .63), location (p = .32), or socioeconomic status (p = .82). Most frequent single complaint at onset was headache (19%), most frequent combination of symptoms was headache and vomiting (60%).

CONCLUSION

We found TDIs longer than reported in contemporary publications. TDI was longer in patients with low-grade tumors and only few symptoms at the time of onset. The findings support the crucial need of awareness and improved diagnostic tools to recognize and interpret symptoms to promote timely diagnosis.

A qualitative exploration of the pathway to diagnosis and treatment of cutaneous squamous cell carcinoma of the head and neck with perineural spread

BACKGROUND

Perineural spread (PNS) is associated with a poor prognosis in cutaneous squamous cell carcinoma of the head and neck (cSCCHN). Hence, investigating facilitators and barriers of early diagnosis and treatment of PNS in cSCCHN may improve outcomes.

METHODS

Patients were recruited from an institutional database. Semi-structured interviews were conducted according to the Model of Pathways to Treatment. Thematic analysis was based on the four main intervals in the framework using a data-driven analytical method.

RESULTS

Seventeen participants were interviewed. Facilitators included patients' past experiences, symptom progression, trust in healthcare professionals (HCPs), and capacity to leverage relationships. Barriers included difficult diagnoses, limited access to cancer services, lack of care coordination, and lack of awareness of PNS among primary health care providers.

CONCLUSION

These findings emphasise the complexity early diagnosis and treatment of PNS. Interventions like clinical practice guidelines, education for HCPs, and telehealth could facilitate timely detection and management.

Hjernetegn.dk-The Danish Central Nervous System Tumor Awareness Initiative Digital Decision Support Tool: Design and Implementation Report

BACKGROUND

Childhood tumors in the central nervous system (CNS) have longer diagnostic delays than other pediatric tumors. Vague presenting symptoms pose a challenge in the diagnostic process; it has been indicated that patients and parents may be hesitant to seek help, and health care professionals (HCPs) may lack awareness and knowledge about clinical presentation. To raise awareness among HCPs, the Danish CNS tumor awareness initiative hjernetegn.dk was launched.

OBJECTIVE

This study aims to present the learnings from designing and implementing a decision support tool for HCPs to reduce diagnostic delay in childhood CNS tumors. The aims also include decisions regarding strategies for dissemination and use of social media, and an evaluation of the digital impact 6 months after launch.

METHODS

The phases of developing and implementing the tool include participatory co-creation workshops, designing the website and digital platforms, and implementing a press and media strategy. The digital impact of hjernetegn.dk was evaluated through website analytics and social media engagement.

IMPLEMENTATION (RESULTS)

hjernetegn.dk was launched in August 2023. The results after 6 months exceeded key performance indicators. The analysis showed a high number of website visitors and engagement, with a plateau reached 3 months after the initial launch. The LinkedIn campaign and Google Search strategy also generated a high number of impressions and clicks.

CONCLUSIONS

The findings suggest that the initiative has been successfully integrated, raising awareness and providing a valuable tool for HCPs in diagnosing childhood CNS tumors. The study highlights the importance of interdisciplinary collaboration, co-creation, and ongoing community management, as well as broad dissemination strategies when introducing a digital support tool.

Time to Diagnosis and Presenting Symptoms of Patients Diagnosed With Cancer Through Emergency and Nonemergency Routes: A Large Retrospective Study From a High-Volume Center

PURPOSE

The symptoms with which a patient with cancer presents and the route taken to diagnosis (emergency v nonemergency) may affect the speed with which the diagnosis of cancer is made, thereby affecting outcomes. We examined time to diagnosis by symptom for cancers diagnosed through emergency and nonemergency routes (NERs).

METHODS

We performed a retrospective review of patients diagnosed with 10 solid cancers at Hospital Clínic of Barcelona between March 2013 and June 2023. Cancers were diagnosed through emergency presentation and admission (inpatient emergency route [IER]), emergency presentation and outpatient referral (outpatient emergency route [OER]), and primary care presentation and outpatient referral (NER). We assessed the effect of diagnostic routes on intervals to diagnosis for 19 cancer symptoms.

RESULTS

A total of 5,174 and 1,607 patients were diagnosed with cancer through emergency routes and NERs, respectively. Over 85% of patients presenting with alarm (localizing) symptoms such as hematuria through emergency routes were diagnosed with the expected cancer, whereas those with nonlocalizing symptoms such as abdominal pain had a more heterogeneous cancer-site composition. Median intervals were shorter for alarm than nonlocalizing symptoms and tended to be shorter in IERs than OERs. However, for most symptoms, intervals in both routes were invariably shorter than in the NER. For example, diagnostic intervals for hematuria and abdominal pain were 3 and 5 days shorter in IERs than OERs, but they were 5-8 and 17-22 days shorter than in the NER, respectively.

CONCLUSION

For patients with alarm symptoms, intervals were shorter than for those with nonlocalizing symptoms and, for most symptoms, intervals were shorter when patients were evaluated by emergency routes rather than NERs.

Resection of colorectal carcinoma liver metastases: A population-based study in outcomes and factors associated with recurrent disease

OBJECTIVE

To assess the hepatic disease-free survival (HDFS) and overall survival (OS) of patients who underwent resection of colorectal cancer liver metastases (CRCLM) in our population, and evaluate what factors are associated with these outcomes.

METHODS

Patients with resected non-mucinous CRCLM between January 2013-February 2020 were retrospectively identified. Dates of diagnosis, surgery, and, if applicable, death were recorded. HDFS and OS were calculated using a census date of 24 September 2022. Separate Cox multivariate regression analyses were performed to evaluate for association between HDFS and OS and the following factors: pre-operative imaging interval (<4 weeks vs. ≥4 weeks); pre-operative imaging modality (CT only vs. MRI+CT); extrahepatic disease at time of hepatectomy (yes vs. no); tumor burden score (TBS, where TBS2 = (largest axial dimension of CRCLM)2 + (number of CRCLM)2); pT and pN; and neoadjuvant chemotherapy.

RESULTS

137 subjects (mean age, 61 ± 11 years, 86 males) were included. Associations with recurrent hepatic disease were found with chemotherapy (HR 2.11[95 % CI = 1.13-3.92]), TBS (HR 1.30[95 % CI = 1.17-1.45]), MRI+CT (HR 2.12[95 % CI = 1.29-3.48]), and extrahepatic disease at hepatectomy (HR 2.16[95 % CI = 1.08-4.35]). For mortality, associations were found with TBS (HR 1.22[95 % CI = 1.09-1.37]), pT (HR 1.45[95 % CI = 1.05-2.00]), and extrahepatic disease at hepatectomy (HR 2.10[95 % CI = 1.31-3.36]).

CONCLUSION

In our population, non-imaging related factors TBS, neoadjuvant chemotherapy, pT and presence of extrahepatic disease at time of hepatectomy were associated with HDFS and/or OS. The preoperative imaging interval and use of preoperative MRI were not associated with improved patient outcomes.

Evaluation of cancer screening services provided for people living with HIV in Botswana, 2022-2023

People living with human immunodeficiency virus (PLHIV) have an increased risk of cancers. Currently, Botswana has no screening guidelines for common cancers in PLHIV except cervical cancer. Also, the proportion of PLHIV who are screened for cancer is unknown. This study aimed to evaluate cancer screening services for PLHIV receiving care in the human immunodeficiency virus (HIV) clinics. Resources for cancer screening were assessed and medical records of adults initiating antiretroviral therapy (ART) from 2020 to 2021 in 20 high-volume HIV clinics in Gaborone and Francistown were reviewed. Questionnaires assessing knowledge and practices of cancer screening were administered to health workers. The majority of clinics had the required resources for cancer screening (specifically cervical cancer). Of the 62 health workers working at the HIV clinics, 57 (91.9%) completed the questionnaire: 35 (62.5%) nurses and 22 (37.5%) doctors. Only 26.3% of the health workers were trained in cervical cancer screening. Doctors were more likely to report practicing routine screening of other cancers (e.g. breast) (p = 0.003) while more nurses reported assessing patients for cancer history during follow-up visits (p = 0.036). Most health workers did not perform physical examinations to detect cancer at initial or follow-up visits. Of the 1000 records of PLHIV reviewed, 57.3% were females, and only 38% of these were screened for cervical cancer. Besides cervical cancer, almost all (97.8%) were not screened for any cancer at ART initiation and during follow-up. These findings highlight the need to improve cancer screening services of PLHIV in Botswana through the training of health workers, and the development and enhanced use of screening guidelines.

Understanding breast cancer patient pathways and their impact on survival in Mexico

BACKGROUND

Understanding patient pathways from discovery of breast symptoms to treatment start can aid in identifying ways to improve access to timely cancer care. This study aimed to describe the patient pathways experienced by uninsured women from detection to treatment initiation for breast cancer in Mexico City and estimate the potential impact of earlier treatment on patient survival.

METHODS

We used process mining, a data analytics technique, to create maps of the patient pathways. We then compared the waiting times and pathways between patients who initially consulted a private service versus those who sought care at a public health service. Finally, we conducted scenario modelling to estimate the impact of early diagnosis and treatment on patient survival.

RESULTS

Our study revealed a common pathway followed by breast cancer patients treated at the two largest public cancer centres in Mexico City. However, patients who initially sought care in private clinics experienced shorter mean wait times for their first medical consultation (66 vs 88 days), and diagnostic confirmation of cancer (57 vs 71 days) compared to those who initially utilized public clinics. Our scenario modelling indicated that improving early diagnosis to achieve at least 60% of patients starting treatment at early stages could increase mean patient survival by up to two years.

CONCLUSION

Our study highlights the potential of process mining to inform healthcare policy for improvement of breast cancer care in Mexico. Also, our findings indicate that reducing diagnostic and treatment intervals for breast cancer patients could result in substantially better patient outcomes.

POLICY SUMMARY

This study revealed significant differences in time intervals along the pathways of women with breast cancer according to the type of health service first consulted by the patients: whether public primary care clinics or private doctors. Policies directed to reduce these inequities in access to timely cancer care are desperately needed to reduce socioeconomic disparities in breast cancer survival.

Determining diagnostic delays in Romanian multiple myeloma patients using the Aarhus statement

Introduction

Multiple Myeloma (MM) is classified as one of the most challenging cancers to diagnose, and the hematological malignancy is associated with prolonged diagnostic delays. Although major steps have been made in the improvement of MM patient diagnosis and care, Romanian patients still face long diagnostic delays. Thus far, there have been no studies evaluating the factors associated with diagnostic errors in Romanian MM patients.

Methods

Using the Aarhus statement, we prospectively determined the diagnostic intervals for 103 patients diagnosed with MM at Fundeni Clinical Institute, between January 2022 and March 2023.

Results

Our data revealed that the main diagnostic delays are experienced during the "patient interval." Patients spend a median of 162 days from the first symptom onset until the first doctor appointment. Bone pain is the most frequently reported symptom by patients (78.64%), but it leads to a medical-seeking behavior in only half of the reporting patients and results in a median delay of 191 days. The changes in routine lab tests are considered most worrisome for patients, leading to a medical appointment after a median of only 25 days. The median primary care interval was 70 days, with patients having an average of 3.7 medical visits until MM suspicion was first raised. The secondary care interval did not contribute to the diagnostic delays.

Discussion

Overall, the median diagnostic path for MM patients in Romania was more than 6 months, leading to a higher number of emergency presentations and myeloma-related end-organ damage.

Insufficient endobronchial ultrasound-guided transbronchial needle aspiration specimens. When and why? The analysis of criteria and reasons behind the insufficient specimens

BACKGROUND

The classification terminology systems for pulmonary cytology specimens have recently emerged. Inadequate samples, classified as "nondiagnostic," raise challenges in determining the threshold of cell numbers and the risk of malignancy (ROM).

METHODS

The study retrospectively reviewed 248 endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) samples: 46 insufficient samples, 60 low cellularity samples, and 142 adequate samples. Characteristics as cellularity, number of benign and malignant cells, and background features were assessed. Receiver operating characteristic curve analysis was performed to establish cell sufficiency thresholds for the diagnosis.

RESULTS

Out of the 248 samples analyzed, 108 were classified as benign, 94 as malignant, and 46 as insufficient. The study found that the cellularity thresholds for diagnosis in cell blocks and cytological samples were ≥50 cells and ≥100 cells, respectively. The thresholds for tumor cell counts were ≥1 - 10 cells for both types of cells, respectively. Considerably, some low cellularity samples were initially classified as insufficient despite meeting the diagnostic thresholds upon revision. The ROM varied across sample categories, with insufficient samples having a ROM of 10.9%, benign samples 15.7%, suspicious samples 92.0%, and malignant samples 100%.

CONCLUSION

Insufficient EBUS-TBNA samples raise challenges in diagnosis and management. This study identified the root cause of insufficient samples, including factors related to humans, diagnostic methods, sampling, and laboratory processing. By understanding the root causes, diagnostic recommendations can be developed to improve the diagnostic process. The findings emphasize the importance of standardized classification and terminology systems for clear communication among healthcare professionals and institutions, ultimately improving patient care and enabling quality assurance measures.

Delayed diagnostic interval and survival outcomes in pediatric leukemia: A single-center, retrospective study

OBJECTIVE

This study primarily focused on the diagnostic interval (DI), defined as the duration from the onset of leukemic symptoms to diagnosis. We investigated whether a prolonged DI is associated with the outcomes of pediatric leukemia.

METHODS

We retrospectively collected data of children with newly diagnosed pediatric leukemia at Okayama University Hospital from January 2007 to December 2022. Survival analyses were conducted using Kaplan-Meier methods, and an unadjusted analysis to compare differences in survival was performed using the log-rank test.

RESULTS

In total, 103 children with leukemia were included in the analysis. The median DI was 20 days (interquartile range, 9.5-33.5 days). A prolonged DI (≥30 days) demonstrated no association with either 5-year event-free survival (70.1% for <30 days and 68.3% for ≥30 days, p = .99, log-rank test) or overall survival (84.7% for <30 days and 89.4% for ≥30 days, p = .85, log-rank test).

CONCLUSIONS

A prolonged DI was not associated with the survival of children with leukemia. If a precise classification of leukemia biology is provided for pediatric patients, a prolonged DI may have little impact on the prognosis of these patients.

The impact of the route to diagnosis in nephroblastoma

INTRODUCTION

Wilms tumor (WT) is the most common childhood kidney cancer. It is a rapid growing embryonal tumor in young children and can be diagnosed with and without tumor related symptoms.

METHODS

We retrospectively analyzed the route to diagnosis of WT treated prospectively according to the SIOP 93-01/GPOH and 2001/GPOH in Germany between 1993 and 2022. Four routes were defined: diagnosis due to tumor-related symptoms, incidental diagnosis during another disease, diagnosis by preventive examinations, and diagnosis within a surveillance program. For these groups we compared clinical and tumor characteristics and outcome.

RESULTS

Of 2549 patients with WT 1822 (71.5%) were diagnosed by tumor-related symptoms, 472 (18.5%) incidentally, 213 (8.4%) by preventive medical examinations, and 42 (1.6%) by surveillance. Age, general health status, tumor volume, and local and overall stage varied significantly between these groups. The youngest patients were those diagnosed by preventive medical examination (mean: 1.70 years). These patients also showed the best general health status. Tumor volume at diagnosis (549 mL) and after preoperative chemotherapy (255 mL) was significantly higher for children with tumor-related symptoms. The highest percentage of local stage I (78.6%) and the lowest percentage of metastatic disease (4.8%) was found in the surveillance group. The outcome of patients was not significantly different, with up to 19.0% relapses in the surveillance group and 3.0% deaths in the group with tumor-related symptoms.

CONCLUSION

The route to diagnosis of WT correlates with age, general health status, tumor volume, and stage distribution, but does not impact the outcome of patients. Nonetheless, diagnosis without tumor related symptoms results in lower treatment burden and thus improved quality of life.

Can predictive factors determine the time to treatment initiation for oral and oropharyngeal cancer? A classification and regression tree analysis

This ecological study aimed to identify the factors with the greatest power to discriminate the proportion of oral and oropharyngeal cancer (OOC) records with time to treatment initiation (TTI) within 30 days of diagnosis in Brazilian municipalities. A descriptive analysis was performed on the variables grouped into five dimensions related to patient characteristics, access to health services, support for cancer diagnosis, human resources, and socioeconomic characteristics of 3,218 Brazilian municipalities that registered at least one case of OOC in 2019. The Classification and Regression Trees (CART) technique was adopted to identify the explanatory variables with greater discriminatory power for the TTI response variable. There was a higher median percentage of records in the age group of 60 years or older. The median percentage of records with stage III and IV of the disease was 46.97%, and of records with chemotherapy, radiation, or both as the first treatment was 50%. The median percentage of people with private dental and health insurance was low. Up to 75% had no cancer diagnostic support services, and up to 50% of the municipalities had no specialist dentists. Most municipalities (49.4%) started treatment after more than 30 days. In the CART analysis, treatment with chemotherapy, radiotherapy, or both explained the highest TTI in all municipalities, and it was the most relevant for predicting TTI. The final model also included anatomical sites in the oral cavity and oropharynx and the number of computed tomography services per 100,000. There is a need to expand the availability of oncology services and human resources specialized in diagnosing and treating OOC in Brazilian municipalities for a timely TTI of OOC.

Exploring diagnostic events and first referrals in cancer patient pathways in primary care. A questionnaire survey

BACKGROUND

Cancer diagnostic pathways in general practice are often nonlinear, and several events can delay timely diagnosis.

OBJECTIVES

To explore cancer diagnostic processes in general practice, examining how patients' symptom presentations, sex, and age are associated with the occurrence of predefined potentially delaying events and the first referrals.

METHOD

General practices in 3 Danish Regions were invited to participate in a questionnaire survey, addressing patient's symptom presentation, diagnostic process events, and first referral. The general practitioners (GPs) received a list of their incident cancer patients from the preceding 2 years.

RESULTS

In total 187 general practices participated, including 5,908 patients with the cancer diagnostic pathways initiated in general practice. Presenting with nonspecific symptoms was associated with potentially delaying events, even when the patient also had specific symptoms. Almost half of the patients were referred to a cancer patient pathway (CPP) first, men more often than women, and 10% were referred for acute hospitalization. In 23% of the diagnostic processes, GPs initially treated or referred patients on suspicion of another disease rather than cancer and waited due to normal examinations in 1 out of 20 patients. Excluding sex-specific cancers, these 2 events were more prevalent in women. Men less often complied to the follow-up agreement. Younger patients were less often first referred to a CPP and together with older patients more often first acutely hospitalized.

CONCLUSION

In cancer diagnostic processes in general practice, first referrals and the occurrence of potentially delaying events are associated with the patient's age, sex, and specificity of symptoms.

Associations between patient-level health literacy and diagnostic time intervals for head and neck cancer: A prospective cohort study

BACKGROUND

Health literacy (HL) comprises skills and knowledge required to understand, access, and make decisions about healthcare. Our aim was to examine associations between patient HL and time intervals (defined in the Aarhus statement) along the pathway to treatment of head and neck cancer (HNC).

METHODS

A prospective cohort study was conducted from October 2018 to March 2020. Participants completed the Health Literacy Questionnaire (HLQ®) and described key events and dates along the pathway to treatment using validated questionnaires. Correlations between six diagnostic time intervals and domains of HL were explored, and factors predicting exceeding maximum acceptable timeframes were assessed using logistic regression.

RESULTS

One hundred patients with a diagnosis of HNC within the preceding 6 months were recruited. HLQ® Domain 2 (sufficient information to manage health) was significantly negatively associated with four intervals: the patient interval (first symptom to first presentation), primary care interval (first presentation to referral to secondary care), diagnostic interval (first presentation to diagnosis), and total interval (first symptom to treatment onset); correlation coefficients -0.25 to -0.27 (P < 0.05). Domain 8 (ability to find good information) was significantly negatively associated with three intervals (primary care interval, diagnostic interval, and total interval; correlation coefficients -0.23 to -0.34; P < 0.05). Higher education, age, and comorbidity levels were associated with shorter patient and diagnostic intervals.

CONCLUSIONS

HL may be a potential target to improve timeliness of HNC diagnosis and reduce disparities in outcomes.

Symptomatic presentation of cancer in primary care: a scoping review of patients' experiences and needs during the cancer diagnostic pathway

OBJECTIVES

The objective was to map the experiences and needs of patients presenting with symptoms of suspected cancer in the primary care interval (from when they first present to primary care to their first appointment or referral to a secondary or tertiary level healthcare facility).

DESIGN

This was a scoping review.

INCLUSION CRITERIA

Studies or reports written in English which included primary data on the primary care interval experiences and/or needs of adult patients presenting with new symptoms of suspected cancer were eligible. Studies which only included patients with secondary or recurring cancer, conference abstracts and reviews were excluded. No date limits were applied.

METHODS

The Joanna Briggs Institute method for Scoping Reviews guided screening, report selection and data extraction. At least two independent reviewers contributed to each stage. Medline, CINAHL, PsychInfo, Embase and Web of Science were searched and several grey literature resources. Relevant quantitative findings were qualitised and integrated with qualitative findings. A thematic analysis was carried out.

RESULTS

Of the 4855 records identified in the database search, 18 were included in the review, along with 13 identified from other sources. The 31 included studies were published between 2002 and 2023 and most (n=17) were conducted in the UK. Twenty subthemes across four themes (patient experience, interpersonal, healthcare professional (HCP) skills, organisational) were identified. No studies included patient-reported outcome measures. Patients wanted (1) to feel heard and understood by HCPs, (2) a plan to establish what was causing their symptoms, and (3) information about the next stages of the diagnostic process.

CONCLUSIONS

Scoping review findings can contribute to service planning as the cancer diagnostic pathway for symptomatic presentation of cancer evolves. The effectiveness of this pathway should be evaluated not only in terms of clinical outcomes, but also patient-reported outcomes and experience, along with the perspectives of primary care HCPs.

Where are the inequalities in ovarian cancer care in a country with universal healthcare? A systematic review and narrative synthesis

INTRODUCTION

Patients diagnosed with ovarian cancer from more deprived areas may face barriers to accessing timely, quality healthcare. We evaluated the literature for any association between socioeconomic group, treatments received and hospital delay among patients diagnosed with ovarian cancer in the United Kingdom, a country with universal healthcare.

METHODS

We searched MEDLINE, EMBASE, CINAHL, CENTRAL, SCIE, AMED, PsycINFO and HMIC from inception to January 2023. Forward and backward citation searches were conducted. Two reviewers independently reviewed titles, abstracts, and full-text articles. UK-based studies were included if they reported socioeconomic measures and an association with either treatments received or hospital delay. The inclusion of studies from one country ensured greater comparability. Risk of bias was assessed using the QUIPS tool, and a narrative synthesis was conducted. The review is reported to PRISMA 2020 and registered with PROSPERO [CRD42022332071].

RESULTS

Out of 2876 references screened, ten were included. Eight studies evaluated treatments received, and two evaluated hospital delays. We consistently observed socioeconomic inequalities in the likelihood of surgery (range of odds ratios 0.24-0.99) and chemotherapy (range of odds ratios 0.70-0.99) among patients from the most, compared with the least, deprived areas. There were no associations between socioeconomic groups and hospital delay.

POLICY SUMMARY

Ovarian cancer treatments differed between socioeconomic groups despite the availability of universal healthcare. Further research is needed to understand why, though suggested reasons include patient choice, health literacy, and financial and employment factors. Qualitative research would provide a rich understanding of the complex factors that drive these inequalities.

Rethinking the logic of early diagnosis in cancer

To reduce morbidity and mortality of cancer, more countries have implemented strategies to detect cancer, based on the logic of 'the sooner the better'. Time is thereby an essential component in how cancer research, policies, and prevention are practiced today. Where the logic of early diagnosis benefits some, the logic also produces harms. In this article, we use a cross-disciplinary case-study design to discuss how different notions of time and linearity are essential in today's research ontology of cancer, describe the individual and societal consequences of such ontology, and invite a rethinking of time in cancer. Drawing on theoretical concepts of time together with cancer epidemiological, historical and ethnographical data, we analyse how the logic of early diagnosis has been established as a stable concept. Although evidence supporting the logic points in different directions, the message 'the sooner the better' is currently not being challenged by research, policy or society. This at least partly, can be explained by a linear perception of time and societal traces of neoliberalism and acceleration in our society together with cancer still being a somewhat enigmatic disease that requires acute action. To support a sustainable healthcare sector, we argue there is a need to nuance the logic of early diagnosis. Continuing the linear perception of symptoms and cancer, risks doing more harm than good by making more people patients unnecessarily and by spending health resources on those with the least need.

Guideline concordance for timely chest imaging after new presentations of dyspnoea or haemoptysis in primary care: a retrospective cohort study

BACKGROUND

Guidelines recommend urgent chest X-ray for newly presenting dyspnoea or haemoptysis but there is little evidence about their implementation.

METHODS

We analysed linked primary care and hospital imaging data for patients aged 30+ years newly presenting with dyspnoea or haemoptysis in primary care during April 2012 to March 2017. We examined guideline-concordant management, defined as General Practitioner-ordered chest X-ray/CT carried out within 2 weeks of symptomatic presentation, and variation by sociodemographic characteristic and relevant medical history using logistic regression. Additionally, among patients diagnosed with cancer we described time to diagnosis, diagnostic route and stage at diagnosis by guideline-concordant status.

RESULTS

In total, 22 560/162 161 (13.9%) patients with dyspnoea and 4022/8120 (49.5%) patients with haemoptysis received guideline-concordant imaging within the recommended 2-week period. Patients with recent chest imaging pre-presentation were much less likely to receive imaging (adjusted OR 0.16, 95% CI 0.14-0.18 for dyspnoea, and adjusted OR 0.09, 95% CI 0.06-0.11 for haemoptysis). History of chronic obstructive pulmonary disease/asthma was also associated with lower odds of guideline concordance (dyspnoea: OR 0.234, 95% CI 0.225-0.242 and haemoptysis: 0.88, 0.79-0.97). Guideline-concordant imaging was lower among dyspnoea presenters with prior heart failure; current or ex-smokers; and those in more socioeconomically disadvantaged groups.The likelihood of lung cancer diagnosis within 12 months was greater among the guideline-concordant imaging group (dyspnoea: 1.1% vs 0.6%; haemoptysis: 3.5% vs 2.7%).

CONCLUSION

The likelihood of receiving urgent imaging concords with the risk of subsequent cancer diagnosis. Nevertheless, large proportions of dyspnoea and haemoptysis presenters do not receive prompt chest imaging despite being eligible, indicating opportunities for earlier lung cancer diagnosis.

Epidemiology, Management, and Survival Outcomes of Germ Cell Cancer in Southern Portugal: A Population-Based Study (2008-2012)

INTRODUCTION

Building on previous suboptimal survival results, we aimed to perform a study of the epidemiological status, management, and outcomes of germ cell tumors (GCT) in the Portuguese population.

MATERIALS AND METHODS

Retrospective populational study of GCT cases diagnosed between 2008 and 2012 in southern Portugal. Joinpoint regression was used to compute average annual percentage change (AAPC) in incidence rate. ESMO/EAU guidelines served as references to evaluate compliance. Association between compliance with guidelines and hospital GCT case load was performed by generalized estimating equation. Survival was calculated by Kaplan-Meier and prognostic factors by Cox models.

RESULTS

The study included 401 GCT male cases. The AAPC was 5.4% (IC 95% 3.3-7.4, P < .001) from 1999 (an earlier cohort published) to 2012. The median time to diagnosis was 63 days (Q25 = 33 days; Q75 = 114 days; IQR = 81 days). For stage II/III the median time to start chemotherapy was 34 days (Q25 = 22 days; Q75 = 56 days; IQR = 22 days). In 86% cases there was noncompliance with guidelines for the orchiectomy report, 6% for staging, 38% for tumor markers evaluation, 20% for treatment and 25% for chemotherapy dose intensity. The 5-year overall survival was 93.8% (95% CI, 91.3%-96.4%). Hospitals that managed ≤ 3 GCT cases/ year had higher odds for noncompliance with guidelines of blood markers, treatment and dose intensity. None of GCT healthcare access and management factors studied were associated with prognosis.

CONCLUSIONS

The burden of GCT is rising in Portugal. Although survival has improved, efforts must be made to nationally enhance training and expertise in GCT and support region adapted models of centralization of care.

Effect of patient and diagnostic intervals on the risk of advanced stage in Indian patients with seven types of gastrointestinal cancers: A retrospective cohort study

OBJECTIVES

Advanced stage is linked to prolonged patient and diagnostic interval for gastrointestinal (GI) cancers. However, objective evidence of this fact is not so forthcoming. Our aim was to study the effect of these intervals on the risk of advanced stage for GI cancers.

METHODS

We performed this retrospective cohort study to analyse the effect of patient and diagnostic intervals on final stage in seven types of GI cancers, during 2013 and 2022. Two groups of stage: early (TNM- 0, I, II) and advanced (TNM- III, IV), were formed. Outcome studied was interdependence between patient and diagnostic intervals and incidence of advanced stage. Binary logistic regression was applied to calculate odds ratio of having an advanced versus early stage as a function of duration of these delays, in the whole cohort. We used restricted cubic splines with five knots to study flexible and non-monotonic pattern of association between these delays and stage.

RESULTS

In whole cohort of 1859 patients, median patient and diagnostic intervals of early and advanced cancers were 21 and 26 days and 120 and 45 days, respectively. There was a positive association between patient interval and advanced stage (odds ratio [OR], 1.04, confidence interval [CI], 1.035 to 1.045; P < 0.001) and negative association between diagnostic interval and advanced stage (odds ratio, 0.98, CI, 0.976 to 0.998; P-0.017), among all gastrointestinal cancers combined. Increased risk of advanced stage started from day one of patient interval and for diagnostic interval there was an initial decrease followed by subsequent increase in the risk of advanced stage beyond 26 days of diagnostic interval.

CONCLUSIONS

Longer patient and diagnostic intervals increase the risk of advanced stage in gastrointestinal cancers.

Factors associated with the melanoma diagnostic interval in Ontario, Canada: a population-based study

BACKGROUND

Protracted times to diagnosis of cancer can lead to increased patient anxiety, and in some cases, disease progression and worse outcomes. This study assessed the time to diagnosis for melanoma, and its variability, according to patient-, disease-, and system-level factors.

METHODS

This is a descriptive, cross-sectional study in Ontario, Canada from 2007-2019. We used administrative health data to measure the diagnostic interval (DI)-and its two subintervals-the primary care subinterval (PCI) and specialist care subinterval (SCI). Multivariable quantile regression was used.

RESULTS

There were 33,371 melanoma patients. The median DI was 36 days (interquartile range [IQR]: 8-85 days), median PCI 22 days (IQR: 6-54 days), and median SCI 6 days (IQR: 1-42 days). Increasing comorbidity was associated with increasing DI. Residents in the most deprived neighbourhoods and those in rural areas experienced shorter DIs and PCIs, but no differences in SCI. There was substantial variation in the DI and SCI across health regions, but limited differences in the PCI. Finally, patients with a history of non-melanoma skin cancer, and those previously established with a dermatologist experienced significantly longer DI, PCI, and SCI.

DISCUSSION

This study found variability in the melanoma DI, notably by system-level factors.

Structure-changeable luminescent Eu(III) complex as a human cancer grade probing system for brain tumor diagnosis

Accurate determination of human tumor malignancy is important for choosing efficient and safe therapies. Bioimaging technologies based on luminescent molecules are widely used to localize and distinguish active tumor cells. Here, we report a human cancer grade probing system (GPS) using a water-soluble and structure-changeable Eu(III) complex for the continuous detection of early human brain tumors of different malignancy grades. Time-dependent emission spectra of the Eu(III) complexes in various types of tumor cells were recorded. The radiative rate constants (kr), which depend on the geometry of the Eu(III) complex, were calculated from the emission spectra. The tendency of the kr values to vary depended on the tumor cells at different malignancy grades. Between T = 0 and T = 3 h of invasion, the kr values exhibited an increase of 4% in NHA/TS (benign grade II gliomas), 7% in NHA/TSR (malignant grade III gliomas), and 27% in NHA/TSRA (malignant grade IV gliomas). Tumor cells with high-grade malignancy exhibited a rapid upward trend in kr values. The cancer GPS employs Eu(III) emissions to provide a new diagnostic method for determining human brain tumor malignancy.

Where are the inequalities in colorectal cancer care in a country with universal healthcare? A systematic review and narrative synthesis

OBJECTIVE

Patients diagnosed with colorectal cancer living in more deprived areas experience worse survival than those in more affluent areas. Those living in more deprived areas face barriers to accessing timely, quality healthcare. These barriers may contribute to socioeconomic inequalities in survival. We evaluated the literature for any association between socioeconomic group, hospital delay and treatments received among patients with colorectal cancer in the UK, a country with universal healthcare.

DESIGN

MEDLINE, EMBASE, CINAHL, CENTRAL, SCIE, AMED and PsycINFO were searched from inception to January 2023. Grey literature, including HMIC, BASE and Google Advanced Search, and forward and backward citation searches were conducted. Two reviewers independently reviewed titles, abstracts and full-text articles. Observational UK-based studies were included if they reported socioeconomic measures and an association with either hospital delay or treatments received. The QUIPS tool assessed bias risk, and a narrative synthesis was conducted. The review is reported to Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020.

RESULTS

41 of the 7209 identified references were included. 12 studies evaluated 7 different hospital intervals. There was a significant association between area-level deprivation and a longer time from first presentation in primary care to diagnosis. 32 studies evaluated treatments received. There were socioeconomic inequalities in surgery and chemotherapy but not radiotherapy.

CONCLUSION

Patients with colorectal cancer face inequalities across the cancer care continuum. Further research is needed to understand why and what evidence-based actions can reduce these inequalities in treatment. Qualitative research of patients and clinicians conducted across various settings would provide a rich understanding of the complex factors that drive these inequalities. Further research should also consider using a causal approach to future studies to considerably strengthen the interpretation. Clinicians can try and mitigate some potential causes of colorectal cancer inequalities, including signposting to financial advice and patient transport schemes.

PROSPERO REGISTRATION NUMBER

CRD42022347652.

Germline Variants in Cancer Predisposition Genes in Pediatric Patients with Central Nervous System Tumors

Central nervous system (CNS) tumors comprise around 20% of childhood malignancies. Germline variants in cancer predisposition genes (CPGs) are found in approximately 10% of pediatric patients with CNS tumors. This study aimed to characterize variants in CPGs in pediatric patients with CNS tumors and correlate these findings with clinically relevant data. Genomic DNA was isolated from the peripheral blood of 51 pediatric patients and further analyzed by the next-generation sequencing approach. Bioinformatic analysis was done using an "in-house" gene list panel, which included 144 genes related to pediatric brain tumors, and the gene list panel Neoplasm (HP:0002664). Our study found that 27% of pediatric patients with CNS tumors have a germline variant in some of the known CPGs, like ALK, APC, CHEK2, ELP1, MLH1, MSH2, NF1, NF2 and TP53. This study represents the first comprehensive evaluation of germline variants in pediatric patients with CNS tumors in the Western Balkans region. Our results indicate the necessity of genomic research to reveal the genetic basis of pediatric CNS tumors, as well as to define targets for the application and development of innovative therapeutics that form the basis of the upcoming era of personalized medicine.

Exploring GPs' assessments of their patients' cancer diagnostic processes: a questionnaire study

BACKGROUND

Most cancer diagnostic pathways start from primary care and several factors affect the diagnostic processes.

AIM

To analyse the associations between patient characteristics, symptom presentation, and cancer type and the GP's assessment of the diagnostic processes.

DESIGN AND SETTING

General practices in the North, Central, and Southern regions of Denmark were invited to participate in a questionnaire survey.

METHOD

Participating GPs received a list of patients with incident cases of cancer in the period between 1 March 2019 and 28 February 2021 based on administrative hospital data. A questionnaire was completed for each patient, addressing symptom presentation and the GP's assessment of the diagnostic process both overall and in four subcategories (the patient's role, the GP's role, the transition between primary and secondary care, and the secondary sector's role).

RESULTS

A total of 187 general practices informed on 8240 patients. For 5868 patients, diagnostic pathways started in general practice. Almost half (48.3%, 2837/5868) presented with specific cancer symptoms. GPs assessed 55.6% (3263) and 32.3% (1897) of the diagnostic processes as 'very good' and 'predominantly good', respectively; 11.9% (700) were 'predominantly poor' or 'very poor' for these 5868 patients. Long symptom duration of ≥2 months prior to GP contact and presenting with non-specific or a combination of non-specific and specific symptoms were associated with a poor overall assessment of the diagnostic process. Assessment in the four subcategories showed that the patient's role was assessed less positively than the other three categories.

CONCLUSION

A longer symptom duration and presenting without cancer-specific symptoms were associated with GPs assessing the diagnostic process as poor.

Diagnostic and pre-treatment intervals among patients with cervical cancer attending care at the Uganda Cancer Institute: a cross-sectional study

BACKGROUND

Majority of patients with cervical cancer in the low- and middle-income countries experience long diagnostic and pre-treatment intervals. This study sought to determine the factors associated with the diagnostic and pre-treatment intervals among patients with cervical cancer.

METHODS

This was a cross-sectional study conducted at the Uganda Cancer Institute (UCI) during October 2019 to January 2020. Patients aged ≥ 18 years with histological diagnosis of cervical cancer were consecutively sampled. Data were collected using a pre-tested semi-structured questionnaire and a data abstraction form. Diagnostic intervals, defined as the time between first visit of a patient to a primary healthcare provider to time of getting confirmed diagnosis, of ≤ 3 months was defined as early & >3 months as late. Pre-treatment intervals, which is the time from histological diagnosis to starting cancer chemo-radiotherapy of ≤ 1 month was defined as early and > 1 month as late. Data were analysed using STATA version 14.0. We used modified Poisson regression models with robust variance to determine socio-demographic and clinical factors associated with the intervals.

RESULTS

The mean age of the participants was 50.0 ± 11.7 years. The median diagnostic and pre-treatment intervals were 3.1 (IQR: 1.4-8.2) months and 2.4 (IQR: 1.2-4.1) months respectively. Half of the participants, 49.6% (200/403) were diagnosed early; one in 5 patients, 20.1% (81/403) promptly (within one month) initiated cancer chemo-radiotherapy. Participants more likely to be diagnosed early included those referred from district hospitals (level 5) (aPR = 2.29; 95%CI: 1.60-3.26) and with squamous cell carcinomas (aPR = 1.55; 95%CI: 1.07-2.23). Participants more likely to be diagnosed late included those who first discussed their symptoms with relatives, (aPR = 0.77; 95%CI: (0.60-0.98), had > 2 pre-referral visits (aPR = 0.75; 95%CI (0.61-0.92), and had advanced stage (stages 3 or 4) (aPR = 0.68; 95%CI: 0.55-0.85). Participants more likely to initiate cancer chemo-radiotherapy early included older patients (≥ 60 years) (aPR = 2.44; 95%CI: 1.18-5.03). Patients likely to start treatment late were those who had ≥2 pre-referral visits  (aPR = 0.63; 95%CI: 0.41-0.98) and those that took 3 - 6 months with symptoms before seeking healthcare (aPR = 0.52;95%CI: 0.29 - 0.95).

CONCLUSION

Interventions to promote prompt health-seeking and early diagnosis of cervical cancer need to target primary healthcare facilities and aim to enhance capacity of primary healthcare professionals to promptly initiate diagnostic investigations. Patients aged < 60 years require targeted interventions to promote prompt initiation of chemo-radiation therapy.

Can we rely on contrast-enhanced CT to identify pancreatic ductal adenocarcinoma? A population-based study in sensitivity and factors associated with false negatives

OBJECTIVES

To determine the sensitivity of contrast-enhanced computed tomography (CECT) in detecting pancreatic ductal adenocarcinoma (PDAC) and identify factors associated with false negatives (FNs).

METHODS

Patients diagnosed with PDAC in 2014-2015 were retrospectively identified by a cancer registry. CECTs performed during the diagnostic interval were retrospectively classified as true positive (TP), indeterminate, or FN. Sensitivity TP/(TP+FN) was calculated for all CECTs and the following subgroups: protocol (uniphasic vs. biphasic); tumor size (≤ 2 cm vs. > 2 cm); and resectability (potentially resectable vs. unresectable). Multivariate logistic regression was performed to assess which of the following factors were associated with FN: clinical suspicion of PDAC; size >2 cm; presence of metastases; protocol; isoattenuating tumor; and potentially resectable disease on imaging.

RESULTS

In total, 176 CECTs (127 uniphasic; 49 biphasic) in 154 patients (90 men, mean age 72 ± 11 years) were included. Sensitivity was 125/149 (83.9%) overall and 87/106 (82.1%) and 38/43 (88.4%) for uniphasic and biphasic protocols, respectively. Sensitivity was decreased for tumors ≤ 2 cm (45.4% vs. 90.6%), no liver metastases (78.0% vs. 95.9%), and potentially resectable disease (65.3% vs. 93.0%). Factors significantly associated with FN were clinical suspicion (OR, 0.24, 95% CI: 0.07-0.75), size>2 cm (OR, 0.10, 95% CI: 0.02-0.44), absence of liver metastases (OR, 4.94, 95% CI: 1.29-22.99), and potentially resectable disease (OR, 4.13, 95% CI: 1.07-16.65).

CONCLUSIONS

In our population, the overall sensitivity of CECT to detect PDAC is 83.9%; however, this is substantially lower in several scenarios, including patients with potentially resectable disease. This finding has important implications for patient outcomes and efforts to maximize CECT sensitivity should be sought.

CLINICAL RELEVANCE STATEMENT

The sensitivity of CECT to detect PDAC is significantly decreased in the setting of sub-2 cm tumors and potentially resectable disease. A dedicated biphasic pancreatic CECT protocol has higher sensitivity and should be applied in patients with suspected pancreatic disease.

KEY POINTS

• The sensitivities of contrast-enhanced CT for the detection of PDAC were 87/106 (82.1%) and 38/43 (88.4%) for uniphasic and biphasic protocols, respectively. • The sensitivity of contrast-enhanced CT was decreased for small tumors ≤ 2 cm (45.4% vs. 90.6%), if there were no liver metastases (78.0% vs. 95.9%), and with potentially resectable disease (65.3% vs. 93.0%). • Absence of liver metastases (OR, 4.94, 95% CI: 1.29-22.99) and potentially resectable disease (OR, 4.13, 95% CI: 1.07-16.65) were associated with a false--negative (FN) CT result; suspicion of malignancy on the imaging requisition (OR, 0.24, 95% CI: 0.07-0.75) and size > 2 cm (OR, 0.10, 95% CI: 0.02-0.44) were negatively associated with FN.

Total diagnostic interval in children with brain tumours in a middle-income country: national experience from Serbia

PURPOSE

The aim was to evaluate the total diagnostic interval (TDI) and presenting complaints in children with brain tumours in Serbia.

METHODS

This study retrospectively analysed 212 children aged 0-18 years newly diagnosed with brain tumours in two tertiary centres from mid-March 2015 to mid-March 2020 covering virtually all children with brain tumours in Serbia. TDI was calculated as the difference between the date of diagnosis and the date of symptom onset presented as a median in weeks. This variable has been evaluable for 184 patients.

RESULTS

Overall TDI was 6 weeks. TDI was significantly longer in patients with low-grade tumours (11 weeks) than in patients with high-grade tumours (4 weeks). Children with the most frequent complaints (headache, nausea/vomiting and gait disturbance) were more likely to be diagnosed sooner. Patients with a single complaint had significantly longer TDI (12.5 weeks) contrasted to patients with multiple complaints (5 weeks).

CONCLUSION

TDI with a median of 6 weeks is similar to other developed countries. Our study supports the view that low-grade tumours will present later than high-grade tumours. Children with the commonest complaints and children with multiple complaints were more likely to be diagnosed sooner.

A taxonomy of early diagnosis research to guide study design and funding prioritisation

Researchers and research funders aiming to improve diagnosis seek to identify if, when, where, and how earlier diagnosis is possible. This has led to the propagation of research studies using a wide range of methodologies and data sources to explore diagnostic processes. Many such studies use electronic health record data and focus on cancer diagnosis. Based on this literature, we propose a taxonomy to guide the design and support the synthesis of early diagnosis research, focusing on five key questions: Do healthcare use patterns suggest earlier diagnosis could be possible? How does the diagnostic process begin? How do patients progress from presentation to diagnosis? How long does the diagnostic process take? Could anything have been done differently to reach the correct diagnosis sooner? We define families of diagnostic research study designs addressing each of these questions and appraise their unique or complementary contributions and limitations. We identify three further questions on relationships between the families and their relevance for examining patient group inequalities, supported with examples from the cancer literature. Although exemplified through cancer as a disease model, we recognise the framework is also applicable to non-neoplastic disease. The proposed framework can guide future study design and research funding prioritisation.

Socioeconomic position and the pre-diagnostic interval among patients diagnosed with head and neck squamous cell carcinoma - a population-based study from DAHANCA

BACKGROUND

The socioeconomic differences in survival are pronounced for patients diagnosed with head and neck cancer; disease stage at diagnosis is suggested to be a main driver of this association. This nationwide, population-based study investigates socioeconomic differences in the pre-diagnostic interval and disease stage at diagnosis.

MATERIAL AND METHODS

Information on patient-reported symptoms, symptom onset and disease-specific factors was obtained from the nationwide population-based Danish Head and Neck Cancer Group (DAHANCA) database for patients diagnosed with head and neck squamous cell carcinoma between 2008 and 2019 in Denmark. Socioeconomic position (SEP) was measured by individual-level education, income and cohabitation status obtained from administrative registers. Socioeconomic differences in the interval from symptom onset to diagnosis were investigated in general linear models with 95% confidence intervals (CIs); overall and by subsite, symptom and comorbidity score. Consultation patterns prior to diagnosis were examined using methods for change-point detection. Associations with advanced-stage disease were estimated in logistic regression models.

RESULTS

Patients with low, medium and high SEP had a similar interval from patient-reported symptom onset to diagnosis of 10 weeks. Although this interval varied according to primary symptom and anatomical subsite, no apparent socioeconomic differences were observed within these subgroups. Aligned with the patient-reported symptom onset, a distinct increase in consultation rates was observed at 9 weeks (95% CI [7.3; 10.7]) for patients with low SEP and 7 weeks (95% CI [4.8; 9.2]) for patients with high SEP, with overlapping CIs. Patients with low compared to high SEP had increased odds for advanced-stage glottic and oral cavity squamous cell carcinoma. For the remaining subsites the association varied according to SEP-indicator and TNM-edition.

CONCLUSION

The interval from symptom onset to diagnosis and consultation patterns were similar across SEP groups. Still, socioeconomic differences in stage at diagnosis were observed for some - but not all - subsites.

Enhancing Healthcare for Sarcoma Patients: Lessons from a Diagnostic Pathway Efficiency Analysis

Sarcomas, rare and with lower survival rates than common tumors, offer insights into healthcare efficiency via the analysis of the total interval of the diagnostic pathway, combining the patient interval (time between the first symptom and visit with a physician) and diagnostic interval (time between first physician visit and histological diagnosis). Switzerland's healthcare system, Europe's costliest, lacks research on treating rare conditions, like mesenchymal tumors. This study examines the total interval of the diagnostic pathway for optimization strategies. Analyzing a dataset of 1028 patients presented from 2018 to 2021 to the Swiss Sarcoma Board (MDT/SB-SSN), this retrospective analysis delves into bone sarcoma (BS), soft-tissue sarcoma (STS), and their benign counterparts. Demographic and treatment data were extracted from medical records. The patient interval accounted for the largest proportion of the total interval and secondary care interval for the largest proportion of the diagnostic interval. Age, grade, and localization could be elicited as influencing factors of the length of different components of the total interval. An increasing age and tumor size, as well as the axial localization, could be elicited as factors increasing the probability of sarcoma. The patient and secondary care interval (SCI) offer the greatest potential for optimization, with SCI being the bottleneck of the diagnostic interval. New organizational structures for care work-ups are needed, such as integrated practice units (IPU) as integral part of value-based healthcare (VBHC).

Pathways to lung cancer diagnosis among individuals who did not receive lung cancer screening: a qualitative study

BACKGROUND

Although early detection of lung cancer through screening is associated with better prognosis, most lung cancers are diagnosed among unscreened individuals. We therefore sought to characterize pathways to lung cancer diagnosis among unscreened individuals.

METHODS

Participants were individuals with lung cancer who did not undergo asymptomatic lung cancer screening (n = 13) and healthcare providers who may be involved in the pathway to lung cancer diagnosis (n = 13). We conducted semi-structured interviews to identify themes in lung cancer patients' narratives of their cancer diagnoses and providers' personal and/or professional experiences of various pathways to lung cancer diagnoses, to identify delays in diagnosis. We audio-recorded, transcribed, and coded interviews in two stages. First, we conducted deductive coding using three time-period intervals from the Models of Pathways to Treatment framework: appraisal, help-seeking, and diagnostic (i.e., excluding pre-treatment). Second, we conducted inductive coding to identify themes within each time-period interval, and classified these themes as either barriers or facilitators to diagnosis. Coding and thematic summarization were completed independently by two separate analysts who discussed for consensus.

RESULTS

Eight of the patient participants had formerly smoked, and five had never smoked. We identified eight barrier/facilitator themes within the three time-period intervals. Within the appraisal interval, the barrier theme was (1) minimization or misattribution of symptoms, and the facilitator theme was (2) acknowledgment of symptoms. Within the help-seeking interval, the barrier theme was (3) hesitancy to seek care, and the facilitator theme was (4) routine care. Within the diagnosis interval, barrier themes were (5) health system challenges, and (6) social determinants of health; and facilitator themes were (7) severe symptoms and known risk factors, and (8) self-advocacy. Many themes were interrelated, including minimization or misattribution of symptoms and hesitancy to seek care, which may collectively contribute to care and imaging delays.

CONCLUSIONS

Interventions to reduce hesitancy to seek care may facilitate timely lung cancer diagnoses. More prompt referral to imaging-especially computed tomography (CT)-among symptomatic patients, along with patient self-advocacy for imaging, may reduce delays in diagnosis.

Factors associated with diagnostic and pre-treatment intervals among breast cancer patients attending care at the Uganda Cancer Institute: A cross-sectional study

BACKGROUND

Most breast cancer (BC) patients in Uganda are diagnosed with advanced-stage disease and experience poor outcomes. This study examined the diagnostic and pre-treatment intervals and factors associated with these intervals among BC patients attending care at the Uganda Cancer Institute (UCI).

METHODS

This was a cross-sectional, facility-based study. Data were collected using structured questionnaire administered by trained research assistants and analyzed using STATA version 14.0. Modified Poisson regressions models were used to determine the strength of associations between independent variables and diagnostic and pre-treatment intervals.

RESULTS

The mean age (±SD) of the 401 participants was 47.1 ± 11.7 years. Four in 10 participants had stage III (41.9%; n = 168) and over a third (34.7%; n = 140) stage IV cancers. The median interval from first consultation to diagnosis, i.e. diagnostic interval (DI) was 5.6 months (IQR: 1.5-17.0), while the median interval from histological diagnosis to start of chemotherapy, i.e. pre-treatment interval (PTI) was 1.7 months (IQR: 0.7-4.5). Majority (85%, n = 341) of participants were diagnosed at ≥3 months from first consultation with clinicians. Participants with tertiary education and those who lived within 100-199 km from the UCI were about four times and twice more likely to be diagnosed early (DI <3 months from first consultation) ([aPR = 3.88; 95% CI: 1.15-13.0] and [aPR = 2.19; 95% CI: 1.06-4.55]), respectively. About half (48.3%; n = 176) of participants started chemotherapy within 1 month of cancer diagnosis. Patients who lived more than 300 km from the UCI were less likely to start chemotherapy within 1 month of histology diagnosis of cancer. [Correction added on October 17, 2023 after first online publication. The term ', i.e.' has been included in the results section in this version.] CONCLUSION: Majority of breast cancer patients are diagnosed late and in advanced stages. There is need to promote all efforts toward timely diagnosis when cancers are still in early stages by identifying factors responsible for prolonged diagnostic intervals among breast cancer patients.

Time intervals and previous primary care consultations in the pathway to emergency cancer diagnosis

BACKGROUND

Time intervals and number of prior consultations in primary care (PC) are recognised metrics of diagnostic timeliness of cancer and are interrelated. However, whether and how the two measures correlate with each other in the emergency diagnostic pathway is unknown. We investigated the association between the number of prereferral consultations and the length of intervals from PC presentation to cancer diagnosis following emergency referral to hospital.

METHODS

Patients were eligible if they first consulted in PC and were diagnosed with cancer following emergency or nonemergency referral to hospital. We analysed for differences in PC and diagnostic intervals and number of consultations between emergency and nonemergency presenters and determined their associations by cancer type. Differences in presenting symptoms and stage at diagnosis between populations and according to number of consultations were also examined.

RESULTS

There were 796 emergency and 865 nonemergency presenters with comparable sociodemographic and comorbidity data. Correlation analysis in emergency presenters revealed a strong positive association between number of consultations and intervals for seven of 13 different cancers, including cancers characterised by high proportions of > 3 consultations and long intervals (pancreatic, lung, and colorectal cancer) and vice versa for others (e.g., endometrial, cervical, or oesophageal cancer). Additionally, emergency presenters with > 3 consultations were more likely than those with 1-2 to report nonspecific symptoms (60 vs. 40%, respectively) and to be diagnosed at a later stage.

CONCLUSION

System level interventions are needed to reduce unnecessary delays in the emergency diagnostic pathway, particularly in cancer patients with multiple prereferral consultations. The findings also suggest opportunities to reduce the proportion of emergency diagnoses by targeting symptomatic individuals pre-presentation.

The effect of time before diagnosis and treatment on colorectal cancer outcomes: systematic review and dose-response meta-analysis

BACKGROUND

This systematic review and meta-analysis aimed to evaluate existing evidence on the relationship between diagnostic and treatment intervals and outcomes for colorectal cancer.

METHODS

Four databases were searched for English language articles assessing the role of time before initial treatment in colorectal cancer on any outcome, including stage and survival. Two reviewers independently screened articles for inclusion and data were synthesised narratively. A dose-response meta-analysis was performed to examine the association between treatment interval and survival.

RESULTS

One hundred and thirty papers were included in the systematic review, eight were included in the meta-analysis. Forty-five different intervals were considered in the time from first symptom to treatment. The most common finding was of no association between the length of intervals on any outcome. The dose-response meta-analysis showed a U-shaped association between the treatment interval and overall survival with the nadir at 45 days.

CONCLUSION

The review found inconsistent, but mostly a lack of, association between interval length and colorectal cancer outcomes, but study design and quality were heterogeneous. Meta-analysis suggests survival becomes increasingly poorer for those commencing treatment more than 45 days after diagnosis.

REGISTRATION

This review was registered, and the protocol is available, in PROSPERO, the international database of systematic reviews, with the registration ID CRD42021255864.

The effects of educational interventions and the COVID-19 pandemic on the time to diagnosis in pediatric patients with primary central nervous system tumors

Background

Primary central nervous system tumors are a leading cause of death and disability amongst pediatric cancer patients. Akron Children's Hospital published data in 2018 on response time for brain tumor diagnosis and implemented components of an established program to decrease diagnostic delays and thereby reduce tumor- and treatment-related morbidities. This study evaluates if there was an improvement in the total diagnostic interval (TDI, time from symptom onset to diagnosis) after provider education. During the study, the COVID-19 pandemic forced alterations in care delivery. The impact this had on the TDI was also assessed.

Methods

A retrospective chart review was performed, and patients were separated into 2008-2017 (historical) and 2018-2021 (posteducation) groups to assess the effect of educational interventions on TDI. The posteducation cohort was analyzed separately to assess the impact of COVID-19 pandemic.

Results

The 85 patients studied in the post-education group showed a median TDI of 31 days. Though not statistically significant (P = .939), this represents an 11-day decrease in median TDI compared to the historical group (42 days). In addition, the posteducation group showed an increase in the average number of healthcare provider visits (HCP, 2.4 historical to 3.2 posteducation, P = .009). The pre-COVID-19 group (median TDI 43.5 days) did not differ statistically from the post-COVID-19 group (30-day median TDI).

Conclusion

The nonsignificant decrease in TDI and concurrent increase in HCP visits after implementation of education suggests a potential gap amongst providers in working-up primary CNS tumors. These results will influence expansion of education to further improve TDI.