Linda C Harlan
Biographic Data
| ID | 5536549 |
|---|---|
| NAME | Linda C Harlan |
| GIVEN NAMES | Linda C |
| FAMILY NAME | Harlan |
| SIGNATURE | HARLAN L C |
| AFFILIATIONS | National Cancer Institute |
| VERIFIED | No |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 43 |
| WORKS AS AUTHOR | 12 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1990 |
| LATEST PUBLICATION YEAR | 2013 |
| H-INDEX | 3 |
Identifying Specific Chemotherapeutic Agents in Medicare Data
BACKGROUND: Large health care databases are increasingly used to examine the dissemination and benefits and harms of chemotherapy treatment in routine practice, particularly among patients excluded from trials (eg, the elderly). Misclassification of chemotherapy could bias estimates of frequency and association, warranting an updated assessment. METHODS: We evaluated the validity of Medicare claims to identify receipt of chemotherapy and specific…
Comparison of Cancer Diagnosis and Treatment in Medicare Fee-for-Service and Managed Care Plans
OBJECTIVE: To compare the Medicare managed care (MC) and fee-for-service (FFS) sectors on stage at diagnosis and treatment patterns for prostate, female breast, and colorectal cancers, and to examine patterns across MC plans. DATA: Surveillance, Epidemiology, and End Results-Medicare linked data. METHODS: Among cases diagnosed at ages 65-79 between 1998 and 2002, we selected all MC enrollees (n = 42,467) and beneficiaries in FFS (n = 82,998) who …
Response to Letter from Dr. Steven T. Fleming
Data Sources for Measuring Comorbidity
BACKGROUND: Identifying appropriate comorbidity data sources is a key consideration in health services and outcomes research. OBJECTIVE: Using cancer patients as an example, we compared comorbid conditions identified: 1) on the discharge facesheet versus full hospital medical record and 2) in the hospital record versus Medicare claims, both precancer diagnosis and associated with a cancer treatment-related index hospitalization. METHODS: We used …
Do Patients Consistently Report Comorbid Conditions Over Time
BACKGROUND: Comorbidity is an important dimension of patient health status. However, limited attention has been given to assessing the reliability of patient-reported data on comorbid conditions. OBJECTIVES: We sought to evaluate the consistency of self-report of 12 comorbid conditions at 3 distinct time points and examine the sociodemographic, clinical, health status, and survey factors associated with reliability. STUDY DESIGN: We undertook a l…
Can Cancer Registry Data Be Used to Study Cancer Treatment
From the Applied Research Program, National Cancer Institute, Bethesda, Maryland. Address correspondence and reprint requests to: Joan L. Warren, PhD, Applied Research Program, National Cancer Institute, Executive Plaza North, Room 4005, 6130 Executive Blvd, MSC 7344, Bethesda, Maryland 20892-7344. E-mail: [email protected]
Utility of the Seer-Medicare Data to Identify Chemotherapy Use
Background. Medicare claims include codes for chemotherapy administration and specific drugs given, and researchers are increasingly using these data to measure the use of chemotherapy. However, the validity and completeness of these data as a source of information has not been established. Objectives. This analysis is intended to assess the utility of the Medicare claims to capture chemotherapy use. Methods. Persons with breast, colorectal, and …
Trends and Black/White Differences in Treatment for Nonmetastatic Prostate Cancer
OBJECTIVES: Controversy and uncertainty surround use of radical prostatectomy, radiation therapy, and conservative symptomatic management in treating elderly men with nonmetastatic prostate cancer. Prior studies have demonstrated variations in use of these therapies by patient age, race, and geographic region. This study examined trends in treatment for nonmetastatic prostate cancer in black and white men aged 65 and older during the period 1986 …
Cervical cancer screening
BACKGROUND: The decline in death rates from cervical cancer in the United States has been widely attributed to the use of Papanicolaou (Pap) smears for early detection of cervical cancer. METHODS: Pap smear screening rates, beliefs about appropriate screening intervals and factors affecting screening were examined using 1987 National Health Interview Survey data. RESULTS: Results indicate that through age 69, Blacks are screened at similar or hig…
Differences in Rates of Cancer Screening by Usual Source of Medical Care
Data from the Cancer Control Supplement of the 1987 Health Interview Survey (NHIS), a nationally representative sample of the United States population, was used to examine rates of six screening tests for cancer. The rates of screening were compared for people who receive their usual source of medical care in an HMO or prepaid group practice versus those who receive it in the fee-for-service sector. The purpose of this article is to determine whe…
Food and nutrient intake differences between smokers and non-smokers in the US
Data from the Second National Health and Nutrition Examination Survey were analyzed to determine food and nutrient intake differences between current smokers (also categorized as light, moderate, and heavy smokers) and non-smokers. Smokers in several age-race-sex categories have lower intakes of vitamin C, folate, fiber, and vitamin A than non-smokers, and intake tended to decrease as cigarette consumption increased, particularly for vitamin C, f…
The economic impact of injuries
Data from the 1980 National Medical Care Utilization and Expenditure Survey were analyzed to place the costs for injuries in the context of all medical costs and to describe the distribution by demographic and diagnostic groups. For the non-institutionalized population, injuries, which include intentional and unintentional, were the second leading cause of direct medical costs, accounting for $16,745 million in medical care expenditures and a maj…
Cervical cancer screening
BACKGROUND: The decline in death rates from cervical cancer in the United States has been widely attributed to the use of Papanicolaou (Pap) smears for early detection of cervical cancer. METHODS: Pap smear screening rates, beliefs about appropriate screening intervals and factors affecting screening were examined using 1987 National Health Interview Survey data. RESULTS: Results indicate that through age 69, Blacks are screened at similar or hig…
Food and nutrient intake differences between smokers and non-smokers in the US
Data from the Second National Health and Nutrition Examination Survey were analyzed to determine food and nutrient intake differences between current smokers (also categorized as light, moderate, and heavy smokers) and non-smokers. Smokers in several age-race-sex categories have lower intakes of vitamin C, folate, fiber, and vitamin A than non-smokers, and intake tended to decrease as cigarette consumption increased, particularly for vitamin C, f…
The economic impact of injuries
Data from the 1980 National Medical Care Utilization and Expenditure Survey were analyzed to place the costs for injuries in the context of all medical costs and to describe the distribution by demographic and diagnostic groups. For the non-institutionalized population, injuries, which include intentional and unintentional, were the second leading cause of direct medical costs, accounting for $16,745 million in medical care expenditures and a maj…
Food and nutrient intake differences between smokers and non-smokers in the US
Data from the Second National Health and Nutrition Examination Survey were analyzed to determine food and nutrient intake differences between current smokers (also categorized as light, moderate, and heavy smokers) and non-smokers. Smokers in several age-race-sex categories have lower intakes of vitamin C, folate, fiber, and vitamin A than non-smokers, and intake tended to decrease as cigarette consumption increased, particularly for vitamin C, f…
The economic impact of injuries
Data from the 1980 National Medical Care Utilization and Expenditure Survey were analyzed to place the costs for injuries in the context of all medical costs and to describe the distribution by demographic and diagnostic groups. For the non-institutionalized population, injuries, which include intentional and unintentional, were the second leading cause of direct medical costs, accounting for $16,745 million in medical care expenditures and a maj…
Cervical cancer screening
BACKGROUND: The decline in death rates from cervical cancer in the United States has been widely attributed to the use of Papanicolaou (Pap) smears for early detection of cervical cancer. METHODS: Pap smear screening rates, beliefs about appropriate screening intervals and factors affecting screening were examined using 1987 National Health Interview Survey data. RESULTS: Results indicate that through age 69, Blacks are screened at similar or hig…
Differences in Rates of Cancer Screening by Usual Source of Medical Care
Data from the Cancer Control Supplement of the 1987 Health Interview Survey (NHIS), a nationally representative sample of the United States population, was used to examine rates of six screening tests for cancer. The rates of screening were compared for people who receive their usual source of medical care in an HMO or prepaid group practice versus those who receive it in the fee-for-service sector. The purpose of this article is to determine whe…
Trends and Black/White Differences in Treatment for Nonmetastatic Prostate Cancer
OBJECTIVES: Controversy and uncertainty surround use of radical prostatectomy, radiation therapy, and conservative symptomatic management in treating elderly men with nonmetastatic prostate cancer. Prior studies have demonstrated variations in use of these therapies by patient age, race, and geographic region. This study examined trends in treatment for nonmetastatic prostate cancer in black and white men aged 65 and older during the period 1986 …
Utility of the Seer-Medicare Data to Identify Chemotherapy Use
Background. Medicare claims include codes for chemotherapy administration and specific drugs given, and researchers are increasingly using these data to measure the use of chemotherapy. However, the validity and completeness of these data as a source of information has not been established. Objectives. This analysis is intended to assess the utility of the Medicare claims to capture chemotherapy use. Methods. Persons with breast, colorectal, and …
Can Cancer Registry Data Be Used to Study Cancer Treatment
From the Applied Research Program, National Cancer Institute, Bethesda, Maryland. Address correspondence and reprint requests to: Joan L. Warren, PhD, Applied Research Program, National Cancer Institute, Executive Plaza North, Room 4005, 6130 Executive Blvd, MSC 7344, Bethesda, Maryland 20892-7344. E-mail: [email protected]
Do Patients Consistently Report Comorbid Conditions Over Time
BACKGROUND: Comorbidity is an important dimension of patient health status. However, limited attention has been given to assessing the reliability of patient-reported data on comorbid conditions. OBJECTIVES: We sought to evaluate the consistency of self-report of 12 comorbid conditions at 3 distinct time points and examine the sociodemographic, clinical, health status, and survey factors associated with reliability. STUDY DESIGN: We undertook a l…
Data Sources for Measuring Comorbidity
BACKGROUND: Identifying appropriate comorbidity data sources is a key consideration in health services and outcomes research. OBJECTIVE: Using cancer patients as an example, we compared comorbid conditions identified: 1) on the discharge facesheet versus full hospital medical record and 2) in the hospital record versus Medicare claims, both precancer diagnosis and associated with a cancer treatment-related index hospitalization. METHODS: We used …
Response to Letter from Dr. Steven T. Fleming
Comparison of Cancer Diagnosis and Treatment in Medicare Fee-for-Service and Managed Care Plans
OBJECTIVE: To compare the Medicare managed care (MC) and fee-for-service (FFS) sectors on stage at diagnosis and treatment patterns for prostate, female breast, and colorectal cancers, and to examine patterns across MC plans. DATA: Surveillance, Epidemiology, and End Results-Medicare linked data. METHODS: Among cases diagnosed at ages 65-79 between 1998 and 2002, we selected all MC enrollees (n = 42,467) and beneficiaries in FFS (n = 82,998) who …
Identifying Specific Chemotherapeutic Agents in Medicare Data
BACKGROUND: Large health care databases are increasingly used to examine the dissemination and benefits and harms of chemotherapy treatment in routine practice, particularly among patients excluded from trials (eg, the elderly). Misclassification of chemotherapy could bias estimates of frequency and association, warranting an updated assessment. METHODS: We evaluated the validity of Medicare claims to identify receipt of chemotherapy and specific…
Medicine (11 works) · Internal Medicine (9 works) · Internal Medicine (9 works) · Cancer (6 works) · Family medicine (6 works) · Global Cancer Incidence and Screening (6 works) · Environmental health (5 works) · MEDLINE (5 works) · Population (4 works) · Biology (3 works)