Background and Importance.—Globally, almost one million new cases of stomach cancer were estimated to have occurred in 2012 (952,000 cases, 6.8% of the total), making it the fifth most common malignancy in the world, after lung, breast, colorectal, and prostate. Gastric cancer was the world's third leading cause of cancer mortality in 2012, responsible for 723,000 deaths, 8.8% of total cancer deaths. 1 In 2017, 28,000 new cases and 10,960 deaths are estimated for gastric cancer in the United States. 2 Estimated United States prevalence counts on January 1, 2014, for patients diagnosed within the previous 5-years was 48,271 (SEER Cancer Statistics Review-2014). Prognostic indices of survival & mortality in patients with gastric cancer are related to tumor stage including nodal involvement, direct tumor extension beyond the gastric wall, and wide-spread dissemination. Tumor histologic grade (degree of loss of cellular differentiation), and oncotype-specific ICD-O-3 phenotypes also provides important prognostic information. By more than 90%, the most common histologic type of stomach cancer is adenocarcinoma. The National Cancer Institute (NCI) ICD-O-3 SEER Site/Histology Validation List catalog (September 18, 2015) enumerates almost 200 subtypes for gastric cancer sites C160-C166, C168-C169. Based on the results of molecular evaluation of 295 primary gastric adenocarcinomas reported to The Cancer Genome Atlas (TCGA) project in 2014, a novel classification separating gastric cancers into four subtypes according to Epstein-Barr virus positive status, microsatellite instability, chromosomal instability, or genomic stability was proposed. 3 Of interest, Helicobacter Pylori infection and its role in the development of gastric cancer is not mentioned. All cancer has a genetic basis. However, given the histologic and etiologic heterogeneity of gastric cancer, eventual comprehensive molecular characterization and genomic sequencing with identification of chromosomal aberrations, nucleotide substitutions mortality follow-up study is focused on short- and long-term comparative patient outcomes of stomach adenocarcinoma, ICD-O-3 8140-8147, and other selected gastric cancer oncotypes. Objective.—To update trends in incidence, prevalence, short- and long-term survival, and mortality of gastric cancer using the statistical database of SEER*Stat 8.3.4 for diagnosis years 1973-2014 employing multiple case selection variables. Methods.—A retrospective, population-based study using nationally representative data from the National Cancer Institute's (NCI) Surveillance, Epidemiology, and End Results (SEER) program to evaluate 157,258 cases for diagnosis years 1973-2014 comparing multiple variables of age, sex, race, stage, grade, cohort entry time-period, disease duration and histologic oncotype: Relative survival statistics were analyzed in two cohorts: 1973-1994 and 1995-2014. Survival statistics were derived from: SEER*Stat Database: Incidence – SEER 9 Regs Research Data, November 2016 Submission (1973-2014) <Katrina/Rita Population Adjustment> Released April 2017. Results.—By more than 90%, the most common type of stomach cancer is adenocarcinoma. From 1975 to 2014, gastric cancer incidence has been steadily decreasing in the United States at the rate of −1.5% per year. In a total of 157,258 cases of invasive staged cancer of the stomach, mean age in males was 67.5 years, females 69.6 years, both male & female 67.4 years. Greater than 90% of cases occurred between ages 45-85+ years with the zenith in males at 70-74 years (15.1%) and 85+ years in females (17.9%). The overall annual US death rate per 100,000 per year for stomach cancer from 1975 to 2014 has decreased from 5.1 to 3.1, but excess mortality at 0-5 years remains exceedingly high. Mortality is a function of incidence and survival, and unfortunately, almost all of this decrease is due to the decrease in incidence of stomach cancer. Of the 157,258 invasive cases, 86.6% were clinically staged and 76.8% were histologically graded. Conclusions.—Given the histologic and etiologic heterogeneity of gastric cancer, major improvements in mortality and survival outcomes await the development of diagnostic markers for earlier diagnosis, and genomic sequencing and identification of chromosomal aberrations, nucleotide substitutions and epigenetic modifications that drive malignant transformation, for the development of targeted therapies for almost 200 gastric cancer subtypes.
- Tables 1 - 8 provide basic SEER epidemiologic, demographic, case-statistics, and comparative mortality follow-up data of 4 principal and 2 supplementary thyroid cancer oncotypes by age, sex, race, stage and disease duration of patients in the 1993-2013 time-period. [Table: see text] [Table: see text] [Table: see text] [Table: see text] [Table: see text] [Table: see text] [Table: see text] [Table: see text] Conclusions.-Thyroid cancer when localized has a very good prognosis, with no significant excess mortality after diagnosis in papillary and papillary follicular variant cancers (PFV). Because nearly two thirds of thyroid cancers are localized, and excess death rate (EDR) is small in patients with regional cancer under age 50, overall excess mortality for all ages also virtually disappeared after 10 years in papillary and follicular cancer. Overall, the 5-year survival rate is greater than 90% for papillary and follicular carcinomas. Nevertheless, because of the marked predominance of papillary carcinoma, the continued increase in its relative frequency and annual projected deaths, thyroid carcinoma remains a significant health concern in the current era.
Background.—The values of SEER site recode variables are based on the primary site and histology data fields submitted to SEER by the registries. The site recode variables define the major cancer site/histology groups that are commonly used in the reporting of cancer incidence data and are added to the SEER databases as a convenience for researchers. These codes and definitions are periodically updated and changed by the National Cancer Institute as newer and more applicable information becomes available. Because this myeloma analysis includes cases diagnosed 2010+, the ICD-O-3 recode-updates with adjustment for WHO 2008 hematopoietic histologies that account for changes in the obsolete classification of hematopoietic histology codes, and the assignment of new names (ie, multiple myeloma-MM – to – plasma cell myeloma-PCM) is adhered to and used here. Plasma cell myeloma (PCM) is a bone-marrow based multifocal plasma cell malignancy (primary site C421). PCM is characterized by a single clone of plasma cells, believed to be derived from lymphoid B cells, and spans a clinical spectrum from asymptomatic to aggressive forms, plus disorders caused by the deposition of abnormal immunoglobulin chains in tissue. The current myeloma group ICD-O-3 histologic morphology types consists of:ICD-O-3 9731: Plasmacytoma, NOS, occurring in bone (osseous plasmacytoma malignancy data reportable to SEER only beginning since 1986);ICD-O-3 9732: Plasma cell myeloma – composed of three clinical variants: a) asymptomatic, b) Non-secretory myeloma, and c) Plasma cell leukemia (all coded to 9732);ICD-O-3 9734: Extramedullary plasmacytoma; anatomic sites other than bone. Objective.—Using the statistical database of SEER*Stat 8.3.4 (produced 4/14/2017 for diagnosis years 1973-2014), to assess, determine, compare, and summarize the occurrence, long-term survival and mortality indices of the three morphologic types of myeloma by age, sex, race and stage in two-cohort entry time-periods (1973-1994 and 1995-2014). All analyses are accomplished within the context of current SEER Site Recode ICD-O-3 (1/27/2003) definitions, terminologies and descriptions, and also in accordance with the rules of the consolidated Hematopoietic and Lymphoid Neoplasm Coding Manual data base (effective 1/1/2010 – release date January 2015). Methods.—Population data including 111,041 cases collected by the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) Frequency Database (18 SEER Registries Research Data + Hurricane Katrina Impacted Louisiana Cases, November 2016 Submission, 1973-2014 varying) for diagnosis years 1973-2014: Relative Survival Statistics were analyzed in two cohorts: 1973-1994 and 1995-2014. Survival statistics were derived from: SEER*Stat Database: Incidence – SEER 9 Regs Research Data, November 2016 Submission (1973-2014) <Katrina/Rita Population Adjustment> Released April 2017. Results.—Tables 1-3 provide basic SEER comparative survival and mortality data of the three myeloma oncotypes by age, sex, stage and disease duration of patients in the 1973-2014 time-period. Epidemiologic, demographic, and case statistics data extracted from the most current NCI Cancer Statistics Review (CSR 2010-2014) are included. Conclusions.—Recent SEER age-adjusted incidence trends, 2011-2014, for all races has been downward, with an annual percentage change (APC) of -2.5% per year. Mean age in plasma cell myeloma (PCM) patients was about 1-year less in males (67.8 yrs) than in females (69.2 yrs). PCM is accompanied by a very high excess mortality and much reduced 5-year relative survival ratio especially in older age groups. Generally, first year excess death rates (EDRs) decreased with duration but increased with advancing entry age, and there was no sex difference. First year EDRs in blacks, all ages combined, was quite high but lower than EDRs in whites. Median survival, actual survival and 5-year relative survival ratios diminished precipitously to extremely low levels with increasing entry age attesting to the lethal character of this disease especially in older patients.
This introductory overview describes the recommencement of the Cancer Mortality Risks project, a systematic medical-actuarial comparative analysis of selected cancer mortality risks originally initiated by the authors in the year 2002 utilizing the National Cancer Institute (NCI) SEER*Stat 4.2.3 (Surveillance, Epidemiology, and End Results) database between 1973 and 2002 and released April 3, 2002. This study is based on approximately 40 major invasive cancer anatomic sites used in previous conversions of the National Cancer Institute SEER survival data to comparative mortality in the Medical Risks monographs published in 1976 and 1990. Anatomic site-specific cancer mortality abstracts of SEER survival data containing 20-year comparative mortality follow-up by cohort entry-period, histologic type, age, sex, race, stage, grade and other variables was proposed for publication as a monograph, compendium or a series of concise but detailed mortality articles.
Objective.— To update trends in incidence, prevalence, short- and long-term survival and mortality of esophageal cancer using the statistical database of SEER*Stat 8.3.4 for diagnosis years 1973-2014 employing multiple case selection variables. Methods.— A retrospective, population-based study using nationally representative data from the National Cancer Institute's (NCI) Surveillance, Epidemiology, and End Results (SEER) program to evaluate 83,658 cases of esophageal cancer for diagnosis years 1973-2014 comparing multiple variables of age, sex, race, stage, grade, cohort entry time-period, disease duration, and, two histologic oncotypes. Relative survival statistics were analyzed in two cohorts: 1973-1994 and 1995-2014. Survival statistics were derived from: SEER*Stat Database: Incidence – SEER 9 Regs Research Data, November 2016 Submission (1973-2014) <Katrina/Rita Population Adjustment> Released April 2017 (Ref. 9). Case frequency and incidence data, derived from the SEER program, were used to design the table format and number of pages for this report. Results.— In a total of 83,658 cases of esophageal cancer in the United States for diagnosis years 1973-2014, multiple variables of age, sex, race, stage, grade, cohort entry time-period, disease duration, and, two histologic oncotypes were compared. Mean age in males was 66.5 years, females 70.1 years, both male and female 67.2 years. Greater than 85% of incidence cases occurred between ages 55-85+ years with the zenith in males at 65-69 years (59.4%) and 70-74 years (60.5%) in females. The overall annual US death rate from 1975-2014 has slightly increased from 3.69 to 3.99 per 100,000 per year, and excess mortality remains exceedingly high. Of the 83,658 invasive cases, 82.6% were clinically staged and 79.4% were histologically graded. Conclusions.— Relative frequency, incidence and time-trends, and the clinical, demographic and secular variables of age, sex, race, stage, grade, cohort-entry time-periods, and predominant clinical oncotypes were comparatively analyzed to provide a comprehensive medical-actuarial assessment of esophageal cancer survival and mortality in the 1973-2014 time-frame.
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