Incidence of head and neck cancer and socioeconomic status in Canada from 1992 to 2007

Socioeconomic Status, Length of Stay, and Postoperative Complications in Oral Cavity Squamous Cell Carcinoma

Background: Despite universal healthcare in Canada, low socioeconomic status (SES) has been associated with worse survival in oral cavity squamous cell carcinoma (OCSCC) patients. However, the relationship between SES and outcomes during the acute postoperative period is poorly defined. Hamilton, Ontario, presents a unique population with widely varying SES within the same geography. The objective of this study was to examine the relationship between SES, length of hospital stay (LOHS), and postoperative complications in OCSCC. Methods: Newly diagnosed OCSCC patients receiving primary surgical treatment from 2010 to 2014 were identified within a prospectively collected database. Inclusion criteria included age >18 years old, pathological diagnosis of oral cavity cancer, and primary surgical treatment with curative intent. Patients were excluded if they were undergoing palliative treatment or had previous head and neck surgery/radiotherapy. Postal codes were used to identify neighborhood-level socioeconomic variables via 2011 Canada Census data. Income quartiles were defined from groups of neighboring municipalities based on Canada Census definitions. Demographic, social, pathological, staging, and treatment data were collected through chart review. Results: One hundred and seventy-four patients were included in the final analysis. OCSCC patients with lower SES were more likely to be younger (P = .041), male (P = .040), have significant tobacco and alcohol use (P = .001), higher Charlson Comorbidity Index (CCI; P = .014), lower levels of education (P = .001), and have lower employment levels (P = .001). Lower SES patients had higher clinical tumor (P = .006) and clinical nodal (P = .004) staging and were more likely to receive adjuvant therapy (P = .001) and G-tubes (P = .001). Multivariable regression analysis showed that low SES was a statistically significant predictor of postoperative complications [β 2.50 (95% confidence interval (CI) 0.200, 3.17); P = .014] and LOHS [β 2.03 (95% CI 1.06, 2.99); P = .0001]. Tobacco and alcohol use, clinical tumor, and nodal stage, CCI, and planned adjuvant therapy were also statistically significant predictors of postoperative complications and LOHS (P < .05). Conclusion: Patients with lower SES have more advanced OCSCC disease with increased comorbidities that owes itself to more acute postoperative complications and LOHS within this study population. Patients with low SES should be identified as patients that require more support during their cancer treatment.

Association between depressive symptoms and socioeconomic status in head and neck cancer patients attending rural tertiary health care center

AIM

To study the association between depressive symptoms and socio-economic status (SES) in patients with head and neck cancer (HNC).

MATERIALS AND METHODS

Histopathology-proven non-metastatic and non-recurrent HNC patients attending radiation oncology services in February and June 2021 who consented to the study were evaluated with an interview. Hamilton Depression Rating Scale (HDRS) and modified BG Prasad classification were used to assess depressive symptoms and SES, respectively. Statistical analysis was done using SYSTAT version 12 (by Crane's software, Bangalore).

RESULTS

The study cohort comprised 100 patients. The median age was 55 years (minimum: 28, maximum: 86) with a male-to-female ratio of 2.57:1. The majority of patients were educated beyond middle-school level (44%), of middle SES (47%), oral cavity subsite (68%), stage IVA (36%) disease, and were on treatment (79%). HDRS scores showed absent, moderate, and severe depressive symptoms in 21, 63, and 16 patients, respectively, that is, the prevalence of depressive symptoms was 79%. Lower socioeconomic strata showed a significantly higher prevalence of severe depressive symptoms (P-value = 0.01). HDRS score was significantly higher in females (P-value = 0.024) and in patients who were illiterate or were educated less than middle-school level (P-value = 0.010). No statistically significant difference was found between HDRS score and age of patient, stage and site of disease, and on treatment or follow-up status.

CONCLUSION

Depressive symptoms are common in patients with head and neck cancer. Low socioeconomic status (SES), female gender, and education less than middle school are associated with severe depressive symptoms. Psycho-oncological and psychotherapeutic interventions are the need of the hour.

Hypopharyngeal cancer trends in a high-incidence region: A retrospective tertiary single center study

BACKGROUND

Hypopharyngeal cancer has the bleakest prognosis among head and neck cancers due to its extensive submucosal involvement, advanced tumor stage, and limited surgical reconstruction options. Its primary causes include alcohol consumption, tobacco use, genetic predisposition, 1` diet, and socioeconomic conditions. While squamous cell carcinoma (SCC) accounts for 95% of hypopharyngeal tumors, it remains a rare form, comprising only 3%-5% of all SCC cases in the head and neck region. Globally, Central and Eastern Europe have the highest incidence rates for males (3.9 per 100000) and the third highest for females (2.26 per 100000), underscoring the significance of this seemingly uncommon condition. In Romania, hypopharyngeal cancer ranked 24th in incidence rate, with 634 new cases in 2020.

AIM

To study the incidence, treatment and survival rates of hypopharyngeal tumor cases in a major ear, nose, throat (ENT) surgical center.

METHODS

A retrospective epidemiological clinical study was conducted on patients diagnosed and treated for hypopharyngeal cancer at the ENT department of "Carol Davila Central University Emergency Military Hospital" in Bucharest between January 2018 and August 2022. The study included 53 patients and was authorized by the Ethics Committee of Titu Maiorescu Doctoral School (Bucharest, Romania) and the Ethics Committee of Carol Davila Central University Emergency Military Hospital (Bucharest, Romania). Inclusion criteria required a positive histopathological diagnosis of hypopharyngeal cancer, tumor localization in the hypopharyngeal region, and informed consent for data usage. Exclusion criteria involved major psychiatric pathologies and disagreement for data usage. Diagnosis was based on ENT assessment, imaging reports, and laboratory data. Treatment methods were determined based on various factors. Additional tools, such as Adult Comorbidity Evaluation-27 and Karnofski Performance Status Scale, were used for risk assessment and functional capacity evaluation. Quality of life aspects were measured using the European Organisation for Reasearch and Treatment of Cancer Quality of Life Questionnaire Head and Neck-35 questionnaire.

RESULTS

Our retrospective study examined 53 patients with hypopharyngeal cancer between January 2018 and August 2022. The majority of patients were male (94.3%), with an average age at diagnosis of 62.5 years. Among the patients, 20.75% were employed, 66.03% were retired, and 9.43% were unemployed. Smoking was prevalent among 69.81% of patients, while alcohol consumption was frequent in 32.07% of cases. The tumors were mostly diagnosed at an advanced stage (stage IV) and were predominantly SCC. Comorbidities were present in 83.01% of patients, with cardiovascular diseases being the most common. Dysphagia and neck mass were the most common symptoms reported. Treatment methods included surgery, radiation therapy, and chemotherapy. A favorable treatment response was observed in 22.64% of cases, while relapse occurred in 6 cases. Follow-up data was unavailable for some patients.

CONCLUSION

In summary, our findings align with existing literature; however, we observed a higher severity.

Comparison of medical resource consumption between oral cavity squamous cell carcinoma with and without sarcopenia: A nationwide population-based cohort study

PURPOSE

No study has compared long-term medical resource consumption between patients with oral cavity squamous cell carcinoma (OCSCC) with and without sarcopenia receiving curative surgery.

PATIENTS AND METHODS

Generalized linear mixed and logistic regression models were employed to evaluate the number of postoperative visits and medical reimbursement for head and neck cancer or complications and the number of hospitalizations for treatment-related complications over 5 years after curative surgery, respectively.

RESULTS

The mean difference (95% CI) in total medical claims amounts between the nonsarcopenia and sarcopenia groups were new Taiwan dollars (NTD) 47 820 (35 864-59 776, p < 0.0001), 11 902 (4897-18 908, p = 0.0009), 17 282 (10 666-23 898, p < 0.0001), 17 364 (9644-25 084, p < 0.0001), and 8236 (111-16 362, p = 0.0470) for the first, second, third, fourth, and fifth years, respectively.

CONCLUSION

The long-term medical resource consumption was higher in the sarcopenia group than in the nonsarcopenia group.

Risk factors for head and neck cancer in more and less developed countries: Analysis from the INHANCE consortium

OBJECTIVE

We analyzed the pooled case-control data from the International Head and Neck Cancer Epidemiology (INHANCE) consortium to compare cigarette smoking and alcohol consumption risk factors for head and neck cancer between less developed and more developed countries.

SUBJECTS AND METHODS

The location of each study was categorized as either a less developed or more developed country. We compared the risk of overall head and neck cancer and cancer of specific anatomic subsites associated with cigarette smoking and alcohol consumption. Additionally, age and sex distribution between categories was compared.

RESULTS

The odds ratios for head and neck cancer sites associated with smoking duration differed between less developed and more developed countries. Smoking greater than 20 years conferred a higher risk for oral cavity and laryngeal cancer in more developed countries, whereas the risk was greater for oropharynx and hypopharynx cancer in less developed countries. Alcohol consumed for more than 20 years conferred a higher risk for oropharynx, hypopharynx, and larynx cancer in less developed countries. The proportion of cases that were young (<45 years) or female differed by country type for some HNC subsites.

CONCLUSION

These findings suggest the degree of industrialization and economic development affects the relationship between smoking and alcohol with head and neck cancer.

A critical discourse analysis of the influence of organisational structures on inequality in head and neck cancer treatment in Denmark

BACKGROUND

Concern is growing about inequality in cancer treatment, and a call has been made for more knowledge of the underlying causes of this inequality. Studies show that patients with low socioeconomic status in general face a greater risk of inequality than patients with a high socioeconomic status.

AIM

The aim of the present study was to uncover how institutional factors may exacerbate inequality in cancer treatment for patients with low socioeconomic status exemplified by patients with head and neck cancer, most of whom have low socioeconomic status.

METHOD

Inspired by Fairclough, we undertook a critical discourse analysis investigating the treatment pathway of patients with head and neck cancer on the basis of policy papers.

RESULTS

These papers, which we conceived as formative instruments, harboured a discourse of efficiency and a discourse of participation, together carving out an effective cancer treatment pathway provided patients act in line with the recommendations.

DISCUSSION

The discourses of efficiency and participation are not unfamiliar in health care, and prior research shows that they may pose difficulties for patients with low socioeconomic status.

CONCLUSION

The discoursal framing of head and neck cancer treatment may exacerbate inequality because most patients with a low socioeconomic status fail to comprehend and act in accordance with these discourses.

Photodynamic therapy in oral cancer: a review of clinical studies

A significant mortality rate is associated with oral cancer, particularly in cases of late-stage diagnosis. Since the last decades, oral cancer survival rates have only gradually improved despite advances in treatment. This poor success rate is mainly due to the development of secondary tumors, local recurrence, and regional failure. Invasive treatments frequently have a negative impact on the aesthetic and functional outcomes of survivors. Novel approaches are thus needed to manage this deadly disease in light of these statistics. In photodynamic therapy (PDT), a light-sensitive medication called a photosensitizer is given first, followed by exposure to light of the proper wavelength that matches the absorbance band of the photosensitizer. The tissue oxygen-induced cytotoxic free radicals kill tumor cells directly, harm the microvascular structure, and cause inflammatory reactions at the targeted sites. In the case of early lesions, PDT can be used as a stand-alone therapy, and in the case of advanced lesions, it can be used as adjuvant therapy. The current review article discussed the uses of PDT in oral cancer therapy based on recent advances in this field.

Disparities in head and neck cancer incidence and trends by race/ethnicity and sex

BACKGROUND

The epidemiology of head and neck cancer (HNC) sites differ substantially. This study compares HNC incidence trends by site and demographic subgroups.

METHODS

We used the U.S. Cancer Statistics Public Use Database to calculate HNC incidence rates per 100 000. We assessed trends with annual percent change (APC) longitudinally from 2001 to 2017.

RESULTS

The oropharyngeal cancer incidence APC decreased from 4.38% (95% CI: 3.6, 5.1) to 2.93% (2.5, 3.3) in 2008 among White males. Oral cavity cancer incidence rose in Other race males (APC 2.5% [1.6, 3.36]) and White females (APC: 0.96% [0.7, 1.2]). Although decreasing (APC: -1.15% [-1.48, -0.83]), laryngeal cancer incidence remained disproportionately high among Black males.

CONCLUSIONS

Notable incidence trends occurred in non-White groups at non-oropharyngeal sites. With parity of smoking rates by race, differing sexual behaviors, and shifting demographics by race and sex, future studies of HNC trends should consider stratifying analyses to understand health disparities.

Margin Sampling and Survival Outcomes in Oral Cavity and p16-Positive Oropharyngeal Squamous Cell Carcinoma

Objective

To compare the association of margin sampling technique on survival outcomes in surgically treated cT1-2 oral cavity and oropharyngeal squamous cell carcinoma.

Study Design

A prospective longitudinal cohort study.

Setting

Tertiary care academic teaching hospital in Halifax, Nova Scotia.

Methods

All cases of surgically treated cT1-2 oral cavity and oropharyngeal cancer undergoing specimen-oriented margin analysis between January 1, 2017, and December 31, 2018 were analyzed. The specimen-oriented cohort was compared with a cohort of patients from January 1, 2009, to December 31, 2014, where a defect-oriented margin sampling protocol was used. Kaplan-Meier survival curves were used to estimate 2-year overall survival, disease-specific survival, local control, and recurrence-free survival rates in oral cavity and p16-positive oropharyngeal squamous cell carcinoma. Cox proportional hazards models were used to assess the effect of margin sampling method on disease-specific survival and local control.

Results

There was no significant association between margin sampling technique and 2-year survival outcomes for surgically treated cT1-2 oral cavity and oropharyngeal squamous cell carcinoma. In the multivariate Cox proportional hazard model, the hazard ratio (HR) of specimen-oriented sampling was not significantly different for disease-specific survival (HR, 1.32; 95% CI, 0.3032-5.727; P = .713) or local control (HR, 0.4087; 95% CI, 0.0795-2.099; P = .284).

Conclusion

Intraoperative margin sampling method was not associated with a significant change in 2-year survival outcomes. Despite no effect on survival outcomes, implementation of a specimen-oriented sampling method has potential for cost avoidance by decreasing the number of re-resections for positive or close margins.

Financial Hardship in Patients With Head and Neck Cancer

PURPOSE

Financial hardship is a growing concern for patients with cancer. Patients with head and neck cancer (HNC) are particularly vulnerable, given that a third leave the workforce following treatment. The goal of our study was to characterize financial hardship in the psychologic response (response to increased expenses) and coping behaviors (behaviors patients adopt to manage their care in the setting of increased expenses) domains in patients with HNC compared with patients with other cancers.

METHODS

This was a retrospective cohort study of nationally representative public survey data from 2013 to 2018 in the National Health Interviews Survey, an annual cross-sectional household survey. We included respondents age ≥ 18 years who reported a diagnosis of cancer and identified a subset of patients with HNC. Our main outcomes were financial hardship in the psychologic response and coping behaviors domains.

RESULTS

Our sample included a weighted population of 357,052 patients with HNC and 21.4 million patients with other cancers. Compared with patients with other cancers, patients with HNC reported greater levels of coping behaviors hardship (31% v 23%, P = .015), but similar levels of psychologic financial hardship (73% v 72%, P = .787). Medicaid or uninsured patients more often reported coping behaviors hardship. On multivariable analysis, HNC (odds ratio, 1.51; 95% CI, 1.01 to 2.24) was independently associated with coping behaviors hardship.

CONCLUSION

To our knowledge, this is the first study to evaluate financial hardship in patients with HNC compared with patients with other cancers that includes Medicaid and uninsured patients, who are more often to have financial hardship. Patients with HNC have greater levels of hardship in the coping behaviors domain compared with patients with other cancers, but similar levels in the psychologic response domain.

Protocol for a systematic review of the financial burden experienced by people affected by head and neck cancer

INTRODUCTION

Head and neck cancer (HNC) is the seventh most common cancer worldwide. Treatment may be associated with the inability to work and substantial out-of-pocket expenses. However, to date, there is little research synthesising quantitative evidence on the financial burden experienced by people affected by HNCs, including family members and informal carers. The purpose of this systematic review is to estimate out-of-pocket costs, reduced or lost income and informal care costs associated with HNC, identify categories of financial burden and investigate which costs predominate when considering financial burden in this population.

METHODS AND ANALYSIS

A comprehensive search of peer-reviewed literature will be conducted for articles published from 01/01/2010 to 19/03/2021 (CINAHL, Cochrane library, EconLit, Embase, Medline Complete). Published, English-language articles describing primary and secondary research directly related to the topic and quantitative cost data will be included. One researcher will complete the searches and screen results for potentially eligible studies. Three other researchers will independently screen the titles and abstracts of a subset of 30% citations, that is, 10% each. Full text articles will be independently screened by three reviewers. Any disagreement will be resolved by consensus among the team. Study and patient characteristics, cost categories and financial burden will be independently extracted by one reviewer and checked by a second. Methodological quality will be evaluated independently by two reviewers. Descriptive analyses will be undertaken and a narrative summary of the included studies will be provided.

ETHICS AND DISSEMINATION

Ethics approval is not required to conduct this research because this is a planned systematic review of published literature. Findings will be presented at leading cancer and health economic conferences, published in a peer-reviewed journal and disseminated via website postings and social media channels.

SYSTEMATIC REVIEW REGISTRATION NUMBER

CRD42021252929.

Factors Associated with Oral Cancerous and Precancerous Lesions in an Underserved Community: A Cross-Sectional Study

Street-involved people with limited access to regular healthcare have an increased risk of developing oral cancer and a lower survival rate. The objective of this study was to measure the prevalence of oral cancerous/precancerous lesions and determine their associated risk factors in a high-risk, underserved population. In this cross-sectional study, English-speaking adults aged 18 years and older living in a marginalized community in Edmonton were recruited from four non-profit charitable organizations. Data were collected through visual oral examinations and a questionnaire. Descriptive statistics, chi-squared tests, and logistic regressions were applied. In total, 322 participants with a mean (SD) age of 49.3 (13.5) years completed the study. Among them, 71.1% were male, 48.1% were aboriginal, and 88.2% were single. The prevalence of oral cancerous lesions was 2.4%, which was higher than the recorded prevalence in Canada (0.014–1.42: 10,000) and in Alberta (0.011–1.13: 10,000). The clinical examinations indicated that 176 (54.7%) participants had clinical inflammatory changes in their oral mucosa. There was a significant association between clinical inflammatory oral lesions and oral cancerous/precancerous lesions (p < 0.001). Simple logistic regression showed that the risk of the presence of oral cancerous/precancerous lesions was two times higher in participants living in a shelter or on the street than in those living alone (OR = 2.06; 95% CI: 1.15–3.82; p-value: 0.021). In the multiple logistic regression analysis, the risk of oral cancerous/precancerous lesions was 1.68 times higher in participants living in a shelter or on the street vs. living alone after accounting for multiple predictors (OR = 1.67; 95% CI: 1.19–2.37; p-value: 0.022). The results demonstrated a high prevalence of cancerous/precancerous lesions among the study participants, which was significantly associated with clinical inflammatory oral lesions. The evidence supports the need for developing oral cancer screening and oral health promotion strategies in underserved communities.

Ibero-American Expert Consensus on Squamous Cell Carcinoma of the Head and Neck Treatment in Patients Unable to Receive Cisplatin: Recommendations for Clinical Practice

Cisplatin is the standard of treatment for squamous cell carcinoma of the head and neck (SCCHN) that has demonstrated efficacy, either in locally advanced disease when combined with radiotherapy at high doses, or in metastatic/recurrent disease when combined with other agents. However, the usual toxicities related to cisplatin, such as neurotoxicity, nephrotoxicity, ototoxicity, and hematologic toxicities, especially when high doses have been administered, have important implications in the patients' quality of life. The decision to administer cisplatin depends on several patient factors, such as age, performance status, weight loss, comorbidities, previous toxicities, chronic viral infection, or even the current SARS-CoV-2 pandemic. In order to establish recommendations for the management of patients with SCCHN, a group of experts in medical and radiation oncology from Spain and Latin-American discussed how to identify patients who are not candidates for cisplatin to offer them the most suitable therapeutic alternative.

Shared Decision-making in Head and Neck Surgery: A Review

Importance

Shared decision-making is a partnership between physicians and patients whereby patient values and preferences are incorporated with the best medical evidence. Shared decision-making may reduce decisional conflict, improve value-choice congruence, and increase patient involvement. Despite potential benefit in many key areas of otolaryngology-head and neck surgery, both clinical and research focuses on shared decision-making are scarce. Head and neck surgical oncology is of particular interest owing to the frequency by which preference-sensitive decisions must be made. Information used in this review was obtained between January 1 and February 1, 2020.

Observations

Various conceptual models have been developed in an attempt to define the concept of shared decision-making. More than 40 instruments have endeavored to measure the construct of shared decision-making. However, in head and neck surgery, few studies to date have explicitly done so. Situations of clinical equipoise, such as in the management of indeterminate thyroid nodules and in the treatment of laryngeal cancer, are frequent. In contrast, value-option incongruence may occur when patient values do not align with the most oncologically sound treatment choice, such as when the resection and reconstruction of oral cancer may leave patients with significant sequelae. Several patient decision aids have been developed to improve shared decision-making in specific clinical scenarios, for example, in considering total laryngectomy or primary chemoradiotherapy.

Conclusions and Relevance

Despite its potential benefit, there is a dearth of research and clinical applications of shared decision-making in head and neck surgery. Shared decision-making represents an area of substantial need in this regard, and additional efforts should be put forth.

Relationship of depth of invasion to survival outcomes and patterns of recurrence for T3 oral tongue squamous cell carcinoma

INTRODUCTION

Current research is elucidating how the addition of depth of invasion (DOI) to the 8th edition of the American Joint Committee on Cancer (AJCC) TNM staging for oral cavity squamous cell carcinoma influences its prognostic accuracy. However, there is limited research on survival in pT3N0M0 oral tongue SCC (OTSCC) patients when stratifying by DOI.

OBJECTIVES

Determine 5-year overall survival (OS), and cancer-specific survival (CSS) for patients with pT3N0M0 oral OTSCC based on shallow DOI (<10 mm) and deep DOI (10-20 mm).

METHODS

Retrospective review involving three tertiary care cancer centers in North America. cT3N0M0 OTSCC patients receiving primary surgical treatment from 2004 to 2018 were identified. Inclusion: age > 18 years old and confirmation of pT3N0M0 OTSCC on surgical pathology. Exclusion: patients undergoing palliative treatment or previous head and neck surgery/radiotherapy. Analysis comprised two groups: shallow pT3 (tumor diameter > 4 cm, DOI < 10 mm) and deep pT3 (DOI 10 mm-20 mm).

RESULTS

One hundred and four patients with pT3N0M0 OTSCC were included. Mean age was 59.1 years (range: 18-80.74). Age, gender, and Charlson Comorbidity Index were similar between the two groups (p > 0.05). Recurrence, LVI, PNI, and positive margins were more common in deep T3 tumors (P < 0.05). 5-year OS (50% vs 26%, p = 0.006) and CSS (72% vs 24%, p = 0.005) were worse in deep pT3 tumors. Deep pT3 disease was an independent predictor of OS (p = 0.004) and CSS (p = 0.01) on Cox-Regression analysis.

CONCLUSION

DOI is an independent predictor of poor survival in pT3N0M0 OTSCC patients. Consideration should be given to escalating adjuvant therapy for deep pT3N0M0 OTSCC patients.

Association between Socioeconomic Status and Digestive Tract Cancers: A Case-Control Study

Although socioeconomic status (SES) has been associated with cancer risk, little research on this association has been done in Japan. To evaluate the association between SES and digestive tract cancer risk, we conducted a case-control study for head and neck, esophageal, stomach, and colorectal cancers in 3188 cases and the same number of age- and sex-matched controls within the framework of the Hospital-based Epidemiological Research Program at Aichi Cancer Center III (HERPACC III). We employed the education level and areal deprivation index (ADI) as SES indicators. The association was evaluated with odds ratios (ORs) and 95% confidence intervals (CIs) by conditional logistic models adjusted for potential confounders. Even after allowance for known cancer risk factors, the education level showed linear inverse associations with head and neck, stomach, and colorectal cancers. Compared to those educated to junior high school, those with higher education showed statistically significantly lower risks of cancer (0.43 (95% CI: 0.27-0.68) for head and neck, 0.52 (0.38-0.69) for stomach, and 0.52 (0.38-0.71) for colorectum). Consistent with these results for the educational level, the ADI in quintiles showed positive associations with head and neck, esophageal, and stomach cancers (p-trend: p = 0.035 for head and neck, p = 0.02 for esophagus, and p = 0.013 for stomach). Interestingly, the positive association between ADI and stomach cancer risk disappeared in the additional adjustment for Helicobacter pylori infection and/or atrophic gastritis status. In conclusion, a lower SES was associated with an increased risk of digestive cancers in Japan and should be considered in cancer prevention policies for the target population.

Area-level deprivation and oral cancer in England 2012-2016

BACKGROUND

The relationship between deprivation and oral cancer is complex. We examined magnitude and shape of deprivation-related inequalities in oral cancer in England 2012-2016.

METHODS

Oral cancer was indicated by cancers of the lip and oral cavity (ICD10 C00-C06) and lip, oral cavity and pharynx (C00-C14) and deprivation by the Index of Multiple Deprivation. Deprivation inequality in incidence and mortality rates of oral cancer outcomes was measured using the Relative Index of Inequality (RII). Fractional polynomial regression was used to explore the shape of the relationships between deprivation and oral cancer outcomes. Multivariate regression models were fitted with the appropriate functions to examine the independent effect of deprivation on cancer adjusting for smoking, alcohol and ethnicity.

RESULTS

Incidence rate ratios (IRRs) and mortality rate ratios (MRRs) were greater for more deprived areas. The RII values indicated significant inequalities for oral cancer outcomes but the magnitude of inequalities were greater for mortality. The relationships between deprivation and oral cancer outcomes were curvilinear. Deprivation, Asian ethnicity and alcohol consumption were associated with higher incidence and mortality rates of oral cancer.

CONCLUSION

This is the first study, to our knowledge, exploring the shape of socioeconomic inequalities in oral cancer at neighbourhood level. Deprivation-related inequalities were present for all oral cancer outcomes with a steeper rise at the more deprived end of the deprivation spectrum. Deprivation predicted oral cancer even after accounting for other risk factors.

Oral cancer: Clinicopathological features and associated risk factors in a high risk population presenting to a major tertiary care center in Pakistan

Oral squamous cell carcinoma (OSCC) has the highest prevalence in head and neck cancers and is the first and second most common cancer in males and females of Pakistan respectively. Major risk factors include peculiar chewing habits like areca nut, betel quid, and tobacco. The majority of OSCC presents at an advanced stage with poor prognosis. On the face of such a high burden of this preventable cancer, there is a relative lack of recent robust data and its association with known risk factors from Pakistan. The aim of this study was to identify the socioeconomic factors and clinicopathological features that may contribute to the development of OSCC. A total of 186 patients diagnosed and treated at a tertiary care hospital, Karachi Pakistan were recruited. Clinicopathological and socioeconomic information was obtained on a structured questionnaire. Descriptive analysis was done for demographics and socioeconomic status (SES) while regression analysis was performed to evaluate the association between SES and chewing habits, tumor site, and tumor stage. The majority of patients were males and the mean age of OSCC patients was 47.62±12.18 years. Most of the patients belonged to low SES (68.3%) and 77.4% were habitual of chewing. Gender (male) and SES were significantly associated with chewing habits (p<0.05). Odds of developing buccal mucosa tumors in chewers (of any type of substance) and gutka users were 2 and 4 times higher than non-chewers respectively. Middle age, chewing habits, and occupation were significantly associated with late stage presentation of OSCC (p<0.05). In conclusion, male patients belonging to low SES in their forties who had chewing habits for years constituted the bulk of OSCC. Buccal mucosa was the most common site in chewers and the majority presented with late stage tumors.

Risk of head and neck cancer after chronic pancreatitis

Background

To evaluate the relation of head and neck cancer to chronic pancreatitis by analyzing Taiwan’s National Health Insurance Research Database.

Methods

We identified 11,237 patients with chronic pancreatitis as the case cohort, which was propensity score matched with another 11,237 patients without chronic pancreatitis by sex, age, index year, and comorbidities. We followed both cohorts between January 1, 2000, and December 31, 2011 to measure the incidence of head and neck cancer.

Results

Compared with patients without chronic pancreatitis, those with chronic pancreatitis were associated a greater risk of head and neck cancer [adjusted HR (aHR) =1.31, 95% confidence interval (CI): 1.07–1.60] and had a higher incidence of head and neck cancer (log-rank test, P<0.001). The experimental event rate of head and neck cancer for the chronic pancreatitis cohort was 1.90% (213/11,237) and control event rate of head and neck cancer for the non-chronic pancreatitis cohort was 1.60% (180/11,237), respectively. Therefore, the chronic pancreatitis cohort had a 0.30% of absolute risk increase and approximately 333 of number needed to harm for the development of head and neck cancer, respectively. Compared with the individuals without chronic pancreatitis and any other comorbidity, the risk of head and neck cancer for the chronic pancreatitis patients without comorbidities was 2.79 folds and the risk increased to 4.32, 3.33, 3.22, 4.44, and 5.78 folds in the presence of any one, any two, any three, any four, and more than five comorbidities, respectively.

Conclusions

Chronic pancreatitis is related to an increased risk of head and neck cancer, and the presence of comorbidity increases the risk more. It requires more studies to find more co-existing risk factors or comorbidities to recommend a screening program for the CP patients. Moreover, it needs more studies to ascertain the pathogenesis for the aforementioned association and the limited knowledge of the patients' smoking habits and alcohol drinking is the major limitation of this observational study.

Current State of Geospatial Methodologic Approaches in Canadian Population Oncology Research

Geospatial analyses are increasingly used in population oncology. We provide a first review of geospatial analysis in Canadian population oncology research, compare to international peers, and identify future directions. Geospatial-focused peer-reviewed publications from 1992-2020 were compiled using PubMed, MEDLINE, Web of Science, and Google Scholar. Abstracts were screened for data derived from a Canadian cancer registry and use of geographic information systems. Studies were classified by geospatial methodology, geospatial unit, location, cancer site, and study year. Common limitations were documented from article discussion sections. Our search identified 71 publications using data from all provincial and national cancer registries. Thirty-nine percent (N = 28) were published in the most recent 5-year period (2016-2020). Geospatial methodologies included exposure assessment (32.4%), identifying spatial associations (21.1%), proximity analysis (16.9%), cluster detection (15.5%), and descriptive mapping (14.1%). Common limitations included confounding, ecologic fallacy, not accounting for residential mobility, and small case/population sizes. Geospatial analyses are increasingly used in Canadian population oncology; however, efforts are concentrated among a few provinces and common cancer sites, and data are over a decade old. Limitations were similar to those documented internationally, and more work is needed to address them. Organized efforts are needed to identify common challenges, develop leading practices, and identify shared priorities.

Epidemiology and Patient Distribution of Oral Cavity and Oropharyngeal SCC in Canada

BACKGROUND

Oral cavity cancers (OCCs) and oropharyngeal cancers (OPCs) continue to be a major source of morbidity and mortality worldwide requiring the shared effort of numerous specialists. Tobacco and alcohol consumption have long been identified as risk factors for both OCC and OPC. In addition, human papilloma virus (HPV) is gaining its position as the main causal agent for OPC.

OBJECTIVE

The objective of this study is to analyze the epidemiology of OCC and OPC in Canada.

METHODS

Data pertaining to the year of diagnosis, the patient's sex, age at the time of diagnosis, province/territory, city and postal code of oral cavity, and oropharyngeal malignancies diagnosed during 1992-2010 were extracted from the Canadian Cancer Registry and Le Registre Québécois du Cancer.

RESULTS

In total, 21 685 OCC cases and 15 965 OPC cases were identified from 1992 to 2010. Of those, 84.97% were oral cavity squamous cell carcinomas (SCCs), 88.10% were oropharyngeal SCCs, and both had a significant male predominance. While oral cavity SCC incidence stabilized over the study period, oropharyngeal SCC continued to increase. Oral cavity SCC incidence increased with age, while oropharyngeal SCC incidence peaked in the 50- to 59-year age group. Detailed geographic distribution analysis of patients at the provincial/territorial, city, and postal code levels identified several patient clusters.

CONCLUSIONS

This work highlights important epidemiological differences in trends between oral and oropharyngeal cancers, identifies high-incidence postal codes for each malignancy, and correlates incidence/mortality with known risk factors including alcohol/tobacco use and HPV infections, therefore providing a comprehensive understanding of epidemiology for these cancers in Canada.

Comparison of the Financial Burden of Survivors of Head and Neck Cancer With Other Cancer Survivors

Importance

Head and neck cancer (HNC) is more common among socioeconomically disenfranchised individuals, making financial burden particularly relevant.

Objective

To assess the financial burdens of HNC compared with other cancers.

Design, Setting, and Participants

In this retrospective review of nationally representative, publicly available survey, data from the Medical Expenditure Panel Survey were extracted from January 1, 1998, to December 31, 2015. A total of 444 867 adults were surveyed, which extrapolates to a population of 221 503 108 based on the weighted survey design. Data analysis was performed from April 18, 2018, to August 20, 2018.

Exposures

Of 16 771 patients with cancer surveyed (weighted count of 10 083 586 patients), 489 reported HNC (weighted count of 261 631).

Main Outcomes and Measures

Patients with HNC were compared with patients with other cancers on demographics, income, employment, and health. Within the HNC group, risk factors for total medical expenses and relative out-of-pocket expenses were assessed with regression modeling. Complex sampling methods were accounted for with weighting using balanced repeated replication.

Results

A total of 16 771 patients (mean [SD] age, 62.3 [18.9] years; 9006 [53.7%] female) with cancer were studied. Compared with patients with other cancers, patients with HNC were more often members of a minority race/ethnicity, male, poor, publicly insured, and less educated, with lower general and mental health status. Median annual medical expenses ($8384 vs $5978; difference, $2406; 95% CI, $795-$4017) and relative out-of-pocket expenses (3.93% vs 3.07%; difference, 0.86%; 95% CI, 0.06%-1.66%) were higher for patients with HNC than for patients with other cancers. Among patients with HNC, median expenses were lower for Asian individuals compared with white individuals ($5359 vs $10 078; difference, $4719; 95% CI, $1481-$7956]), Westerners ($8094) and Midwesterners ($5656) compared with Northwesterners ($10 549), and those with better health status ($16 990 for those with poor health vs $6714 for those with excellent health). Higher relative out-of-pocket expenses were associated with unemployment (5.13% for employed patients vs 2.35% for unemployed patients; difference, 2.78%; 95% CI, 0.6%-4.95%), public insurance (5.35% for those with public insurance vs 2.87% for those with private insurance; difference, 2.48%; 95% CI, -0.6% to 5.55%), poverty (13.07% for poor patients vs 2.06% for high-income patients), and lower health status (10.2% for those with poor health vs 1.58% for those with excellent health).

Conclusions and Relevance

According to this study, HNC adds a substantial, additional burden to an already financially strained population in the form of higher total and relative expenses. The financial strain on individuals, assessed as relative out-of-pocket expenses, appears to be driven more by income than by health factors, and health insurance does not appear to be protective.

Assessment of the Risk of Oral Cancer Incidence in A High-Risk Population and Establishment of A Predictive Model for Oral Cancer Incidence Using A Population-Based Cohort in Taiwan

We aimed to assess the risk of oral cancer incidence in a high-risk population, establish a predictive model for oral cancer among these high-risk individuals, and assess the predictive ability of the constructed model. Individuals aged ≥30 years who had a habit of smoking or betel nut chewing and had undergone oral cancer screening in 2010 or 2011 were selected as study subjects. The incidence of oral cancer among the subjects at the end of 2014 was determined. The annual oral cancer incidence among individuals with a positive screening result was 624 per 100,000 persons, which was 6.5 times that of the annual oral cancer incidence among all individuals screened. Male sex, aged 45-64 years, divorce, low educational level, presence of diabetes, presence of other cancers, high comorbidity severity, a habit of smoking or betel nut chewing, and low monthly salary were high-risk factors for oral cancer incidence (p < 0.05). The area under the curve of the predictive model for oral cancer incidence was 0.73, which indicated a good predictive ability. Therefore, the oral cancer screening policy for the high-risk population with a habit of smoking and/or betel nut chewing is beneficial for the early diagnosis of oral cancer.

Evidence-Based Medicine in Otolaryngology Part 10: Cost-Effectiveness Analyses in Otolaryngology

Clinicians seek to pursue the most clinically effective treatment strategies, but costs have also become a key determinant in contemporary health care. Economic analyses have thus emerged as a valuable resource to both quantify and qualify the value of existing and emerging interventions and programs. Cost-effectiveness analyses estimate the benefits gained per monetary unit, providing insights to guide resource allocation. Herein, we delineate the related concepts and considerations to facilitate understanding and appraisal of these analyses, so as to better inform the stakeholders in our otolaryngology community.

Impact of socioeconomic inequalities on quality of life in oral submucous fibrosis patients

AIM

The purpose of this study was to analyze the impact of socioeconomic characteristics on oral health-related quality of life (OHRQoL) in patients with oral submucous fibrosis (OSF).

METHODS

 A total of 300 OSF patients' quality of life (QoL) data were obtained using OHRQoL-OSF and global self ratings of oral health and overall wellbeing. The socioeconomic status (SES) of participants was analyzed by using modified Kuppuswamy scale.

RESULTS

OSF patients with lower SES had worse OHRQoL as compared with those with middle and upper SES (p < 0.001). The household income of the family was found to be strongly associated with poor OHRQoL.

CONCLUSION

Socioeconomic characteristics should be considered in the holistic management of OSF as it has been strongly associated with the OHRQoL of these patients.

Improving decision making in larynx cancer by developing a decision aid: A mixed methods approach

OBJECTIVE

Patients diagnosed with advanced larynx cancer face a decisional process in which they can choose between radiotherapy, chemoradiotherapy, or a total laryngectomy with adjuvant radiotherapy. Clinicians do not always agree on the best clinical treatment, making the decisional process for patients a complex problem.

METHODS

Guided by the International Patient Decision Aid (PDA) Standards, we followed three developmental phases for which we held semi-structured in-depth interviews with patients and physicians, thinking-out-loud sessions, and a study-specific questionnaire. Audio-recorded interviews were verbatim transcribed, thematically coded, and analyzed. Phase 1 consisted of an evaluation of the decisional needs and the regular counseling process; phase 2 tested the comprehensibility and usability of the PDA; and phase 3 beta tested the feasibility of the PDA.

RESULTS

Patients and doctors agreed on the need for development of a PDA. Major revisions were conducted after phase 1 to improve the readability and replace the majority of text with video animations. Patients and physicians considered the PDA to be a major improvement to the current counseling process.

CONCLUSION

This study describes the development of a comprehensible and easy-to-use online patient decision aid for advanced larynx cancer, which was found satisfactory by patients and physicians (available on www.treatmentchoice.info). The outcome of the interviews underscores the need for better patient counseling. The feasibility and satisfaction among newly diagnosed patients as well as doctors will need to be proven. To this end, we started a multicenter trial evaluating the PDA in clinical practice (ClinicalTrials.gov Identifier: NCT03292341).

LEVEL OF EVIDENCE

NA Laryngoscope, 129:2733-2739, 2019.

Socioeconomic status and quality of life in patients with locally advanced head and neck cancer

PURPOSE

Socioeconomic aspects play an important role in health care. Patients with locally advanced head and neck cancer (LAHNC) experience detrimental effects on their quality of life (QoL). This prospective study examines QoL differences between patients with different socioeconomic status (SES) after intensity-modulated radiation therapy (IMRT).

PATIENTS AND METHODS

In all, 161 patients were questioned at the end of IMRT and at 12 and 24 months follow-up using the questionnaires of the European Organization for Research and Treatment of Cancer (EORTC) QLQ-30 and QLQ-HN35. Patients' QoL 2 years after IMRT was compared to a population reference sample and QoL of patients from lower, middle, and higher social class 2 years after IMRT was analyzed by ANCOVA using baseline QoL (end of radiation treatment) as a covariate.

RESULTS

Patients with high SES report worse QoL at the end of IMRT in the domains global health status (-15.2; p = 0.005), role function (-23.8; p = 0.002), and social function (-19.4; p = 0.023) compared to patients with middle and low SES. QoL improved during the first 12 and 24 months. However, 2 years after IMRT, middle and low SES patients report lower QoL in the domains global health status, physical function, and role function, and report a higher general (fatigue, pain, dyspnea) and head and neck cancer-specific symptom burden (pain, swallowing, senses, speech, social eating, opening mouth, and felt ill) than patients with high SES.

CONCLUSION

After IMRT for LAHNC, patients with high SES report worse QoL compared to patients with middle or low SES. There is a marked improvement within the first 24 months in many domains. However, the magnitude of improvement in patients with middle or low SES is significantly smaller compared to patients with high SES.

Survival of patients with head and neck squamous cell carcinoma by housing subsidy in a tiered public housing system

BACKGROUND

Socioeconomic status affects survival in patients diagnosed with head and neck squamous cell carcinoma (HNSCC), even in health systems with universal health care. Singapore has a tiered subsidized housing system, in which income determines eligibility for subsidies by size of apartment. The objective of this study was to assess whether a patient's residential type (small/heavily subsidized, medium/moderate subsidy, large/minimal or no subsidy) influenced mortality. A secondary analysis examined whether patients in smaller subsidized apartments were more likely to present with advanced disease.

METHODS

An historical cohort study of patients in a tertiary referral center with HNSCC was identified in the multidisciplinary cancer database from 1992 to 2014. Clinicopathologic data were extracted for analysis. Patient residential postal codes were matched to type of housing. Logistic regression was performed to evaluate the relationship between all-cause mortality and the predictors of interest as well as the association between housing type and disease stage at presentation.

RESULTS

Of the 758 patients identified, most were men (73.4%), the median age was 64 years, 30.5% and 15.2% were smokers and former smokers, respectively. Over one-half (56.8%) of patients presented with advanced disease. Male gender, age, stage at presentation, survival time from diagnosis, and smoker status were significant predictors of mortality. Patients living in the smaller, higher subsidy apartments had poorer survival, although they were not more likely to present with advanced disease, suggesting that the survival difference was not because of delayed presentation.

CONCLUSIONS

Patients with HNSCC living in smaller, higher-subsidy apartments have poorer survival despite no apparent delays in presentation. Cancer 2017;123:1998-2005. © 2017 American Cancer Society.

Socio-economic deprivation: a significant determinant affecting stage of oral cancer diagnosis and survival

Background

Many factors contribute to socioeconomic status (SES), yet in most survival studies only income is used as a measure for determining SES. We used a complex, composite, census-based metric for socioeconomic deprivation to better distinguish individuals with lower SES and assess its impact on survival and staging trends of oral cancers.

Methods

Oropharyngeal (OPC) and oral cavity cancer (OCC) cases were identified from the British Columbia cancer registry between 1981–2009 and placed into affluent and deprived neighborhoods using postal codes linked to VANDIX (a composite SES index based on 7 census variables encompassing income, housing, family structure, education, and employment). Stage and cancer-specific survival rates were examined by sex, SES, and time period.

Results

Approximately 50 % of OPC and OCC cases of both sexes resided in SES deprived neighborhoods. Numbers of cases have increased in recent years for all but OCC in men. The deprivation gap in survival between affluent and deprived neighborhoods widened in recent years for OPC and OCC in men, while decreasing for OPC and increasing slightly for OCC in women. Greater proportions of OCC cases were diagnosed at later stage disease for both sexes residing in deprived neighborhoods, a trend not seen for OPC.

Conclusion

SES remains a significant independent determinant of survival for both OPC and OCC when using a composite metric for SES. OPC survival rates among men have improved, albeit at slower rates in deprived communities. OCC screening programs need to be targeted towards SES-deprived neighborhoods where greater proportions of cases were diagnosed at a later stage and survival rates have significantly worsened in both sexes.

Expression of PTEN and Its Correlation with Proliferation Marker Ki-67 in Head and Neck Cancer

Introduction

PTEN is part of large family of tyrosine phosphatases and has been found inactivated in a wide variety of human cancers.

Aims

In the present study we have tried to determine the association of the expression patterns of this gene with carcinogenesis.

Methods

First, a systematic review was carried out to ascertain the importance of the PTEN gene and its role in carcinogenesis. In the second phase, a case-control study was designed using different expression analysis techniques. Expression of PTEN mRNA was analyzed using reverse transcriptase polymerase chain reaction (RT-PCR).

Results

Significantly downregulated expression of PTEN was observed in patients with head and neck cancer (HNC) compared to adjacent normal-tissue controls. These results were confirmed with quantitative polymerase chain reaction (qPCR). Significant downregulation of the gene was observed in HNC patients compared to adjacent normal-tissue controls. PTEN expression was correlated with different histopathological parameters of the study cohort by Spearman's correlation coefficient and a significant negative correlation was observed with pT stage (r = −0.271*; p<0.02) and grade (r = −0.228*; p<0.02) of HNC tissues. Furthermore, the expression variations of PTEN were correlated with the expression pattern of the proliferation marker Ki-67. Significantly (p<0.008) upregulated expression of Ki-67 was observed in HNC patients compared with adjacent normal-tissue controls This upregulation of Ki-67 was confirmed at the protein level by immunohistochemistry in HNC patients. When Spearman's correlation was carried out a significant negative correlation was observed between PTEN and Ki-67 (r = −0.230*; p<0.03).

Conclusions

Our data suggest that downregulation of PTEN and overexpression of Ki-67 may contribute to the initiation and progression of HNC.

Overview of surgery for oral cavity cancer in Ontario

BACKGROUND

The pupose of this study was to describe variations in incidence and resection rates of patients with oral cavity squamous cell carcinoma (SCC) in Ontario.

METHODS

All oral cavity SCCs in Ontario between 2003 and 2010 were identified from the Ontario Cancer Registry. Incidence and resection rates along with variations in care were compared by sociodemographic factors and Ontario health regions.

RESULTS

The 8-year incidence rates for oral cavity SCC was 21.3 per 100,000 with variations by sex, age group, neighborhood income, and community size. Seventy-four percent of patients underwent an oral cavity cancer resection, of which 91% were at a regional head and neck cancer center. Variations in resection rates existed by region of residence and treatment.

CONCLUSION

Oral cavity cancer incidence rates vary by sex, age, neighborhood income, community size, and health region. Resection rates vary by age and health region. Oral cavity cancer care is highly regionalized in Ontario. © 2015 Wiley Periodicals, Inc. Head Neck 38: 1113-1118, 2016.

Incidence of cutaneous malignant melanoma by socioeconomic status in Canada: 1992-2006

BACKGROUND

There are no nationwide studies documenting changes in cutaneous malignant melanoma incidence or association of incidence with socioeconomic status (SES) in Canada. We sought to determine whether melanoma incidence increased from 1992 to 2006 and if there was an association between SES and melanoma incidence. Additionally, we studied whether there was a correlation between province of residence and melanoma incidence.

METHODS

Cases from the Canadian Cancer Registry were reviewed. Demographic and socioeconomic information were extracted from the Canadian Census of Population data. Cases were linked to income quintiles by postal code. A negative binomial regression was performed to identify relationships among these variables.

RESULTS

Overall incidence of melanoma in Canada increased by 67 % from 1992 to 2006 (p < 0.0001). The increase in incidence was greater for melanoma in situ compared with invasive melanoma (136 % versus 52 % [p < 0.0001]). Incidence was positively correlated with higher income quintiles; the incidence rates among patients in the lowest income quintiles were 67 % of that for the highest income quintiles (p < 0.0001).

DISCUSSION

A wide variety of explanations have been postulated for an increased incidence in melanoma among persons of higher SES, including access to and awareness of screening, more access to vacations in sunny climates, and increased leisure time. Variations in incidence of melanoma by urban vs. rural location and province may indicate differences in access to dermatologists across Canada.

CONCLUSIONS

Melanoma incidence is increasing in Canada and is higher among people in high SES groups. This rise is likely due to a combination of factors including a true rise in incidence due to increases in sun exposure, and also an increased detection rate, particularly in those who are more aware of the disease and have access to resources for detection.

Short, sharp shock public health campaign had limited impact on raising awareness of laryngeal cancer

Laryngeal cancer has poorer outcomes if diagnosed at a later stage. Improving awareness could encourage earlier presentation and improve outcomes. This study aimed to evaluate a public engagement campaign targeted at raising awareness of laryngeal cancer. An epidemiological study identified high-risk populations in the region. A target population as well as a matched control population was selected. A cancer awareness survey combined with focus groups guided the design of a 3-month multimedia campaign. The survey was repeated post-campaign to evaluate the campaign effectiveness. The study identified populations with the highest rates of laryngeal cancer and late stage disease at presentation. The surveys performed revealed a limited effect of the multimedia campaign in raising awareness of the signs and symptoms of laryngeal cancer. Recall of the campaign also faded rapidly. This is the first public awareness campaign aimed at laryngeal cancer carried out in the UK. The results suggest that short-term campaigns have a limited effect and a more prolonged approach should be considered.

Epidemiology of head and neck cancer

This article discusses risk factors, incidence trends, and prognostic considerations for head and neck cancer (HNC). The primary causes of HNC are tobacco and alcohol use, and human papillomavirus (HPV). Tobacco-related HNC incidence rates are decreasing in countries where tobacco use has declined. HPV-HNC, which occurs primarily in the oropharynx and is associated with sexual behaviors, has been increasing over the past several decades, among white men in particular. The prognosis for HNC overall has improved slightly since the 1990s, and is influenced by site, stage, and HPV status. Prognosis for HPV-HNC is significantly better than for HPV-negative disease.

Overview of major salivary gland cancer surgery in Ontario (2003-2010)

Background

The primary objective of this study is to describe variations in incidence rates, resection rates, and types of surgical ablations performed on patients diagnosed with major salivary gland cancers in Ontario.

Methods

All major salivary gland cancer cases in Ontario (2003–2010) were identified from the Ontario Cancer Registry (n = 1,241). Variations in incidence rates, resection rates, and type of surgical therapy were compared by sex, age group, neighbourhood income, community population, health region, and physician specialty.

Results

Eight-year incidence rates per 100,000 vary significantly by sex (male: 15.5, female: 9.7), age (18–54 years: 6.7, 75+ years: 53.4), neighborhood income (lowest quintile: 11.8, highest quintile: 13.7), and community size (cities with a population greater than 1.5 million: 10.6, cities with a population of less than 100,000: 14.7). There was a significant correlation between the likelihood to receive a resection and age with the elderly (75+ years) being the least likely to receive resection (69%). Large differences in incidence and resection rates were observed by health region. Otolaryngology-Head & Neck surgeons provide the majority of total/radical resections (95%).

Conclusions

Major salivary gland cancer incidence rates vary by sex, age, neighborhood income, community size, and health region. Resection rates vary by age and health region. These disparities warrant further evaluation. Otolaryngology-Head & Neck Surgeons provide the majority of major salivary gland cancer surgical care.

Oral cancer in Australia 1982-2008: a growing need for opportunistic screening and prevention

BACKGROUND

Globally, a decline in the incidence of oral cancer has been noted, while the mortality rates have remained relatively stable. The aim of this study was to provide an update on the incidence and mortality of oral cancer in Australia on a national and state level.

METHODS

Data regarding new cases and deaths associated with cancer of the lip, oral cavity and oropharynx were obtained from the Australian Institute of Health and Welfare for the period 1982-2008. Crude- and age-standardized incidence and mortality rates were calculated for all of Australia and for each state and territory.

RESULTS

A total of 60 826 cases of lip, oral cavity and oropharyngeal cancer were diagnosed in Australia. Between 1992 and 2008, a decline in the annual percentage change of age-standardized incidence was noted. The lip, followed by the tongue, continue to represent the most common sites of new oral cancer cases. There was no significant change in the rates of mortality for oral cancer over the time period.

CONCLUSIONS

These findings show that the oral cancer mortality rate remains high despite a decline in incidence over the past three decades, highlighting a greater need for dental practitioners to undertake preventive strategies and opportunistic screening for patients.

Population-based incidence trends of oropharyngeal and oral cavity cancers by sex among the poorest and underprivileged populations

BACKGROUND

Oral cancer is an important health issue, with changing incidence in many countries. Oropharyngeal cancer (OPC, in tonsil and oropharygeal areas) is increasing, while oral cavity cancer (OCC, other sites in the mouth) is decreasing. There is the need to identify high risk groups and communities for further study and intervention. The objective of this study was to determine how the incidence of OPC and OCC varied by neighbourhood socioeconomic status (SES) in British Columbia (BC), including the magnitude of any inequalities and temporal trends.

METHODS

ICDO-3 codes were used to identify OPC and OCC cases in the BC Cancer Registry from 1981-2010. Cases were categorized by postal codes into SES quintiles (q1-q5) using VANDIX, which is a census-based, multivariate weighted index based on neighbourhood average household income, housing tenure, educational attainment, employment and family structure. Age-standardized incidence rates were determined for OPC and OCC by sex and SES quintiles and temporal trends were then examined.

RESULTS

Incidence rates are increasing in both men and women for OPC, and decreasing in men and increasing in women for OCC. This change is not linear or proportionate between different SES quintiles, for there is a sharp and dramatic increase in incidence according to the deprivation status of the neighbourhood. The highest incidence rates in men for both OPC and OCC were observed in the most deprived SES quintile (q5), at 1.7 times and 2.2 times higher, respectively, than men in the least deprived quintile (q1). For OPC, the age-adjusted incidence rates significantly increased in all SES quintiles with the highest increase observed in the most deprived quintile (q5). Likewise, the highest incidence rates for both OPC and OCC in women were observed in the most deprived SES quintile (q5), at 2.1 times and 1.8 times higher, respectively, than women in the least deprived quintile (q1).

CONCLUSION

We report on SES disparities in oral cancer, emphasizing the need for community-based interventions that address access to medical care and the distribution of educational and health promotion resources among the most SES deprived communities in British Columbia.

The Impact of Demographic and Socioeconomic Factors on Major Salivary Gland Cancer Survival

Objective

This study aimed to investigate the impact of demographic and socioeconomic factors on survival in patients with major salivary gland malignancies.

Study Design

Population-based study using the Surveillance, Epidemiology, and End Results (SEER) cancer database.

Subject and Methods

The study cohort consisted of 10,735 men and women ages 20 and older who were diagnosed with major salivary gland carcinoma from 1973 to 2009.

Results

Kaplan–Meier analysis revealed that the overall and disease-specific survival was higher for women than for men ( P < .001). Overall and disease-specific survival decreased with increasing age ( P < .001) and differed by race ( P < .001) and marital status ( P < .001). Patients residing in counties with higher rates of high school completion had higher overall and disease-specific survival ( P < .001). Patients residing in counties with higher median household incomes had better overall and disease-specific survival than patients from lower income counties ( P < .001). On multivariable analysis, male sex (hazard ratio [HR] = 1.41; 95% confidence interval [CI], 1.32-1.50), increasing age, and single status (HR = 1.36; 95% CI, 1.27-1.44) had poor prognostic impact on overall survival. Male sex (HR = 1.38; 95% CI, 1.27-1.49), increasing age, and single status (HR = 1.29; 95% CI, 1.19-1.39) had poor prognostic impact on disease-specific survival.

Conclusion

For patients with salivary gland malignancies, there is a survival benefit for younger patients, female patients, and married patients. This highlights the significance of demographic factors on survival outcomes for patients with salivary gland malignancies and highlights areas for further research on health disparities.