Cervical Cancer Stage at Diagnosis and Survival among Women ≥65 Years in California.

Background: Through adequate screening and follow-up, cervical cancer can be prevented or detected at early-stage (stage I), which is related to excellent survival. Current guidelines recommend discontinuing screening for women ≥65 years with history of normal Pap and/or HPV tests, potentially leaving this age group vulnerable. This study examined late-stage disease in a population-based cohort.

Evaluation of Cancer Deaths Attributable to Tobacco in California, 2014-2019.

Importance: California's tobacco control efforts have been associated with a decrease in cancer mortality, but these estimates are based on smoking prevalence of the general population. Patient-level tobacco use information allows for more precise estimates of the proportion of cancer deaths attributable to smoking.

Objective: To calculate the proportion (smoking-attributable fraction) and number (smoking-attributable cancer mortality) of cancer deaths attributable to tobacco use using patient-level data.

Environmental pesticide exposure and non-Hodgkin lymphoma survival: a population-based study.

Background: There is evidence indicating that pesticide exposure is a risk factor for non-Hodgkin lymphoma (NHL) development. However, the association between pesticide exposure and NHL survival is not well-established.

Methods: Using the California Cancer Registry, we identified patients with a first primary diagnosis of NHL from 2010 to 2016 and linked these patients with CalEnviroScreen 3.

Stage at diagnosis and survival among adolescents and young adults with lymphomas following the Affordable Care Act implementation in California.

Adolescents and young adults (AYAs, 15-39 years) are the largest uninsured population in the Unites States, increasing the likelihood of late-stage cancer diagnosis and poor survival. We evaluated the associations between the Affordable Care Act (ACA), insurance coverage, stage at diagnosis and survival among AYAs with lymphoma. We used data from the California Cancer Registry linked to Medicaid enrollment files on AYAs diagnosed with a primary non-Hodgkin (NHL; n = 5959) or Hodgkin (n = 5378) lymphoma pre-ACA and in the early and full ACA eras.

Symptomatic presentation of cervical cancer in emergency departments in California.

Purpose: Through screening and HPV vaccination, cervical cancer can mostly be prevented or detected very early, before symptoms develop. However, cervical cancer persists, and many women are diagnosed at advanced stages. Little is known about the degree to which U.

Urban-Rural Variations in Quality of Care Among Patients With Cancer in California.

Introduction: Previous research suggests cancer patients living in rural areas have lower quality of care, but population-based studies have yielded inconsistent results. This study examines the impact of rurality on care quality for 7 cancer types in California.

Methods: Breast, ovarian, endometrial, cervix, colon, lung, and gastric cancer patients diagnosed from 2004 to 2017 were identified in the California Cancer Registry.

Treatment Patterns and Survival in Older Adults with Diffuse Large B-cell Lymphoma: A Population-Based Study.

Background And Objective: Diffuse large B-cell lymphoma (DLBCL) is the most common type of non-Hodgkin lymphoma, with a median age of diagnosis of 66 years. Anthracycline-containing regimens are the most common treatments, but toxicity concerns can limit their use in patients older than 80 years. Understanding treatment patterns and associated survival in adults older than 80 years (vs adults aged 65-80 years) can help determine effective management strategies in this population.

Increasing Rates of Colorectal Cancer Among Young People in California, 1988-2017.

Background: Colorectal cancer (CRC) incidence among persons older than 50 years has decreased in California and nationally, but incidence rates have increased among persons younger than 50 years. Previous studies present incidence rates among younger persons using a wide age group of 20-49 years. However, previous population-based studies did not analyze CRC incidence in subgroups defined by age, sex, race/ethnicity, and stage at diagnosis to better understand incidence trends among younger persons.

The influence of the Affordable Care Act-Dependent Care Expansion on insurance coverage among young cancer survivors in California: an updated analysis.

Purpose: To assess changes in health insurance coverage for young cancer patients pre- and post- the Affordable Care Act-Dependent Care Expansion (ACA-DCE) implementation in California. Further, we examined differences in insurance coverage by socioeconomic and race/ethnicity.

Methods: Data were obtained from the California Cancer Registry and Medicaid enrollment files, from 2005 to 2014.

Impact of insurance type and timing of Medicaid enrollment on survival among adolescents and young adults with cancer.

Background: Adolescents and young adults (AYAs) with public or no insurance experience later stage at diagnosis and worse overall survival compared with those with private insurance. However, prior studies have not distinguished the survival impact of continuous Medicaid coverage prior to diagnosis compared with gaining Medicaid coverage at diagnosis.

Methods: We linked a cohort of AYAs aged 15-39 who were diagnosed with 13 common cancers from 2005 to 2014 in the California Cancer Registry with California Medicaid enrollment files to ascertain Medicaid enrollment, with other insurance determined from registry data.

First-Line Systemic Treatments for Stage IV Non-Small Cell Lung Cancer in California: Patterns of Care and Outcomes in a Real-World Setting.

Background: Multiple systemic treatments have been developed for stage IV non-small cell lung cancer (NSCLC), but their use and effect on outcomes at the population level are unknown. This study describes the utilization of first-line systemic treatments among stage IV NSCLC patients in California and compares survival among treatment groups.

Methods: Data on 17 254 patients diagnosed with stage IV NSCLC from 2012 to 2014 were obtained from the California Cancer Registry.

A population-based assessment of proton beam therapy utilization in California.

Objectives: Proton beam therapy (PBT) is a type of radiation therapy (RT) used for certain cancer types because it minimizes collateral tissue damage. The high cost and limited availability of PBT have constrained its utilization. This study examined patterns and determinants of PBT use in California.

Impact of Health Insurance on Stage at Cancer Diagnosis Among Adolescents and Young Adults.

Background: Uninsured adolescents and young adults (AYAs) and those with publicly funded health insurance are more likely to be diagnosed with cancer at later stages. However, prior population-based studies have not distinguished between AYAs who were continuously uninsured from those who gained Medicaid coverage at the time of cancer diagnosis.

Methods: AYA patients (ages 15-39 years) with nine common cancers diagnosed from 2005 to 2014 were identified using California Cancer Registry data.

Disparities in Systemic Treatment Use in Advanced-stage Non-Small Cell Lung Cancer by Source of Health Insurance.

Background: Management of advanced-stage non-small cell lung cancer (NSCLC) has changed significantly over the past two decades with the development of numerous systemic treatments, including targeted therapies. However, a high proportion of advanced-stage patients are untreated. The role that health insurance plays in receipt of systemic treatments is unclear.

A text-mining approach to obtain detailed treatment information from free-text fields in population-based cancer registries: A study of non-small cell lung cancer in California.

Background: Population-based cancer registries have treatment information for all patients making them an excellent resource for population-level monitoring. However, specific treatment details, such as drug names, are contained in a free-text format that is difficult to process and summarize. We assessed the accuracy and efficiency of a text-mining algorithm to identify systemic treatments for lung cancer from free-text fields in the California Cancer Registry.

Disparities in quality of cancer care: The role of health insurance and population demographics.

Escalating costs and concerns about quality of cancer care have increased calls for quality measurement and performance accountability for providers and health plans. The purpose of the present cross-sectional study was to assess variability in the quality of cancer care by health insurance type in California.Persons with breast, ovary, endometrium, cervix, colon, lung, or gastric cancer during the period 2004 to 2014 were identified in the California Cancer Registry.

Comorbidity index in central cancer registries: the value of hospital discharge data.

Background: The presence of comorbid medical conditions can significantly affect a cancer patient's treatment options, quality of life, and survival. However, these important data are often lacking from population-based cancer registries. Leveraging routine linkage to hospital discharge data, a comorbidity score was calculated for patients in the California Cancer Registry (CCR) database.

Kidney Cancer Incidence in California: End of the Trend?

Since the 1990s, multiple studies have reported on an increased incidence of renal cell carcinomas (RCC), which has been considered incidental to the high use of abdominal diagnostic imaging. This population-based study used data from the California Cancer Registry to (i) update trends in RCC incidence and mortality by several tumor and demographic characteristics after reports of decreased use of diagnostic imaging in recent years, and (ii) examine changes in surgical treatment for early-stage RCC. Records of patients diagnosed with RCC from 1988 through 2013 and mortality data from the same period were examined.

Colorectal Cancer Trends in California and the Need for Greater Screening of Hispanic Men.

Introduction: Colorectal cancer (CRC) incidence and mortality rates have decreased dramatically since 1990, both nationally and in California, except among Hispanic men. This study examined trends in CRC incidence, mortality, and survival to determine likely contributing factors for the differential trends between Hispanic and non-Hispanic white men in California.

Methods: California Cancer Registry data were used to identify 23,157 Hispanic and 114,944 white men diagnosed with CRC between 1990 and 2012.

Going against the tide: increasing incidence of colorectal cancer among Koreans, Filipinos, and South Asians in California, 1988-2007.

Objective: Colorectal cancer has declined markedly in California for all major racial/ethnic groups, including Asian/Pacific Islanders as a whole. Analyzing cancer data for Asian/Pacific Islanders collectively masks important differences that exist between individual Asian subgroups. This study examines secular, sex-, age-, and socioeconomic-specific trends in colorectal cancer incidence among six Asian subgroups-Chinese, Japanese, Filipino, Korean, Vietnamese, and South Asian-to determine whether these groups experienced a decline in colorectal cancer incidence and to assess possible differences in colorectal cancer incidence trends among these groups.

Lifestyle behaviors associated with secondary prevention of coronary heart disease among California adults.

Introduction: Heart disease is the leading cause of death in the United States. People diagnosed with coronary heart disease (CHD) are at an increased risk for illness and death. To reduce this risk, it is recommended that people who are diagnosed with CHD improve their health behaviors.

Men of higher socioeconomic status have improved outcomes after radical prostatectomy for localized prostate cancer.

Objective: We sought to evaluate the impact of socioeconomic status (SES) on the likelihood of undergoing radical prostatectomy (RP) or external beam radiation therapy (XRT) and the ensuing effect on cancer-specific survival (CSS) after treatment for men with low-risk prostate cancer.

Methods: Using the California Cancer Registry database, we identified 123,953 men diagnosed with localized, Gleason ≤7 prostate cancer from 1996 to 2005. Patients were separated into quintiles based on socioeconomic status and were stratified by race, age, year of diagnosis, and treatment.

Laparoscopic versus abdominal hysterectomy for endometrial cancer: comparison of patient outcomes.

Objective: To compare the demographics, cancer characteristics, and hospital outcomes of endometrial cancer patients undergoing a laparoscopically assisted vaginal hysterectomy (LAVH) versus a total abdominal hysterectomy (TAH).

Methods: Two California population databases (Office of Statewide Health Planning and Development and the California Cancer Registry) were linked using patient identifiers. Patients who underwent endometrial cancer surgery from 1997 to 2001 were identified.