Gladys Block

Vitamin C in plasma is inversely related to blood pressure and change in blood pressure during the previous year in young Black and White women (2008)

Block, Gladys, Jensen, Christopher D, Norkus, Edward P, Hudes, Mark, Crawford, Patricia B

Abstract Background The prevalence of hypertension and its contribution to cardiovascular disease risk makes it imperative to identify factors that may help prevent this disorder. Extensive...

Nutritional Factors and Susceptibility to Arsenic-Caused Skin Lesions . . . (2008)

Soma R. Mitra, Arindam Basu, Gladys Block, Reina Haque, ...

ascular disease attributed to arsenic in drinking water) associated with undernourishment (Chen et al. 1988). Thus, the investigation of potential increased human susceptibility to arsenic-caused...

Dietary Patterns and the Risk of Barrett's Esophagus (2008)

Kubo, Ai, Levin, T. R., Block, Gladys, Rumore, Gregory J., Quesenberry, Charles P., Buffler, Patricia, ...

The objective of this study was to examine the associations between dietary patterns and the risk of Barrett's esophagus, a precursor to esophageal adenocarcinoma. The authors conducted a...

Usage patterns, health, and nutritional status of long-term multiple dietary supplement users: a cross-sectional study (2007)

Block, Gladys, Jensen, Christopher D, Norkus, Edward P, Dalvi, Tapashi B, Wong, Les G, McManus, Jamie F, ...

Abstract Background Dietary supplement use in the United States is prevalent and represents an important source of nutrition. However, little is known about individuals who routinely consume multiple...

Diet and Lifestyle Factors Associated with Premenstrual Symptoms in a Racially Diverse Community Sample: Study of Women's Health Across the Nation (SWAN) (2007)

Gold, Ellen B., Bair, Yali, Block, Gladys, Greendale, Gail A., Harlow, Siobán D., Johnson, Susan, ...

Aims: We sought to determine if the frequency of reported physical or emotional premenstrual symptoms (PMSx) was associated with (1) dietary intake of phytoestrogens, fiber, fat, or calcium, (2)...

Lifestyle and demographic factors in relation to vasomotor symptoms: baseline results from the Study of Women's Health Across the Nation (2004)

Gold, Ellen B., Block, Gladys, Crawford, Sybil L., Lachance, Laurie, FitzGerald, Gordon, Miracle, Heidi, ...

Results of recent trials highlight the risks of hormone therapy, increasing the importance of identifying preventive lifestyle factors related to menopausal symptoms. The authors examined the...

Activities Contributing to Total Energy Expenditure in the United States: Results from the NHAPS Study (2004)

Dong, Linda, Block, Gladys, Mandel, Shelly

Abstract Background Physical activity is increasingly recognized as an important factor influencing health and disease status. Total energy expenditure, both low-intensity and high-intensity,...

A Randomized Trial of the Little by Little CD-ROM: Demonstrated Effectiveness in Increasing Fruit and Vegetable Intake in a Low-income Population (2004)

Gladys Block, Patricia Wakimoto, Diane Metz, Mary L. Fujii, Nancy Feldman, Rochelle Mandel, ...

Introduction Research indicates that low fruit and vegetable intake is a risk factor for many chronic diseases. Despite large-scale education campaigns, the great majority of Americans do not consume...

Demonstration of an E-mailed Worksite Nutrition Intervention Program (2004)

Gladys Block, Torin Block, Patricia Wakimoto, Clifford H. Block

Introduction Dietary fat and low fruit and vegetable intake are linked to many chronic diseases, and U.S. population intake does not meet recommendations. Interventions are needed that incorporate...

Am J Epidemiol 2004;160:1098--1107 American Journal of Epidemiology (2004)

Copyright By The, Marilyn L. Kwan, Gladys Block, Steve Selvin, Stacy Month, Patricia A. Buffler, ...

fruit juices that contain vitamin C and/or potassium may reduce the risk of childhood leukemia, especially if they are consumed on a regular basis during the first 2 years of life. ascorbic acid;...

Maternal Dietary Risk Factors in Childhood Acute Lymphoblastic Leukemia (2004)

United States Christopher, Christopher D. Jensen, Gladys Block, Patricia Buffler, Xiaomei Ma, Steve Selvin, ...

Objective: Acute lymphoblastic leukemia (ALL) is the most common childhood cancer, and the second most common cause of mortality in children aged 1--14 years. Recent research has established that the...

Lifestyle and Demographic Factors in Relation to Vasomotor Symptoms: Baseline Results from the Study of Women's Health Across the Nation (2004)

Gold, Ellen B., Block, Gladys, Crawford, Sybil, Lachance, Laurie, FitzGerald, Gordon, Miracle, Heidi, ...

Results of recent trials highlight the risks of hormone therapy, increasing the importance of identifying preventive lifestyle factors related to menopausal symptoms. The authors examined the...

Comparing outcome predictability of markers of malnutrition-inflammation complex syndrome in haemodialysis patients (2004)

Kalantar-Zadeh, Kamyar, Kopple, Joel D., Humphreys, Michael H., Block, Gladys

Background. Markers of malnutrition–inflammation complex syndrome (MICS) are reported to predict mortality and hospitalization in maintenance haemodialysis (MHD) patients. However, it is not clear...

Food Consumption by Children and the Risk of Childhood Acute Leukemia (2004)

Kwan, Marilyn L., Block, Gladys, Selvin, Steve, Month, Stacy, Buffler, Patricia A.

The possible relation between child’s early diet and risk of childhood leukemia has remained largely unexplored. The authors’ objective was to determine what particular foods consumed early in...

Comparing outcome predictability of markers of malnutrition-inflammation complex syndrome in haemodialysis patients (2004)

Kalantar-Zadeh, Kamyar, Kopple, Joel D., Humphreys, Michael H., Block, Gladys

Background. Markers of malnutrition-inflammation complex syndrome (MICS) are reported to predict mortality and hospitalization in maintenance haemodialysis (MHD) patients. However, it is not clear...

Factors Associated with Oxidative Stress in Human Populations (2002)

Block, Gladys, Dietrich, Marion, Norkus, Edward P., Morrow, Jason D., Hudes, Mark, Caan, Bette, ...

Oxidation of biomolecules may play a role in susceptibility to a number of diseases. However, there are few large-scale survey data describing oxidative damage that occurs in humans and the...

Which Plasma Antioxidants Are Most Related to Fruit and Vegetable Consumption? (2001)

Block, Gladys, Norkus, Edward, Hudes, Mark, Mandel, Shelly, Helzlsouer, Kathy

Substantial evidence suggests that fruit and vegetable intake reduces the risk of some cancers and other chronic diseases. While a varied diet containing fruits and vegetables may confer benefits...

Lutein and Zeaxanthin in the Diet and Serum and Their Relation to Age-related Maculopathy in the Third National Health and Nutrition Examination Survey (2001)

Marse-Perlman, Julie A., Fisher, Alicia I., Klein, Ronald, Palta, Mari, Block, Gladys, Millen, Amy E., ...

Relations of the carotenoids lutein and zeaxanthin in the diet and serum to photographic evidence of early and late age-related maculopathy (ARM) among persons over age 40 years (n = 8,222)...

Dietary Fat, Fat Subtypes, and Breast Cancer in Postmenopausal Women: a Prospective Cohort Study (2000)

Velie, Ellen, Kulldorff, Martin, Schairer, Catherine, Block, Gladys, Albanes, Demetrius, Schatzkin, Arthur

Background: The intake of total dietary fat and of certain fat subtypes has been shown to be strongly associated with breast cancer in international comparisons and in animal experiments. However,...

Maternal Supplemental and Dietary Zinc Intake and the Occurrence of Neural Tube Defects in California (1999)

Velie, Ellen M., Block, Gladys, Shaw, Gary M., Samuels, Steven J., Schaffer, Donna M, Kulldorff, Martin

The authors investigated the association between maternal preconceptional supplemental and dietary zinc intake and risk of neural tube defects (NTDs) in a population-based case-control study...

Revision of Dietary Analysis Software for the Health Habits and History Questionnaire (1994)

Block, Gladys, Coyle, Linda M., Hartman, Anne M., Scoppa, Steven M.

The software for analysis of the Health Habits and History Questionnaire (HHHQ) has been revised and is available to researchers. As in earlier versions of the software, questionnaires other than the...

Nutrient Sources of Provitamin A Carotenoids in the American Diet (1994)

Block, Gladys

The food sources of provitamin A carotenoids were estimated from data from the Second National Health and Nutrition Examination Survey (NHANES II) carried out in 1976–1980. Carrots contribute over...

Vitamin Supplement Use and Reduced Risk of Oral and Pharyngeal Cancer (1992)

Gridley, Gloria, McLaughlin, Joseph K., Block, Gladys, Blot, William J., Gluch, Maria, Fraumeni, Joseph F.

Use of vitamin and mineral supplements was assessed in a population-based case-control study of oral and pharyngeal cancer, conducted during 1984–1985 in four areas of the United States. There was...

An Evaluation of a Food Frequency Questionnaire for Assessing Dietary Intake of Specific Carotenoids and Vitamin E among Low-Income Black Women (1991)

Coates, Ralph J., William Eley, J., Block, Gladys, Gunter, Elaine W., Sowell, Anne L., Grossman, Clifford, ...

The National Cancer Institute diet questionnaire was evaluated for use in a low-income black population. Data were collected from 91 women aged 30–69 years who were hospital outpatients in Atlanta,...

USE OF VITAMIN AND MINERAL SUPPLEMENTS: DEMOGRAPHTCS AND AMOUNTS OF NUTRIENTS CONSUMED THE 1987 HEALTH INTERVIEW SURVEY (1990)

SUBAR, AMY F, BLOCK, GLADYS

Data from the 1987 National Health Interview Survey show that 51.1% of the adults aged 18–99 years in the United States consumed a vitamin/mineral supplement in the past year, but that...

VALIDATION OF A RETROSPECTIVE QUESTIONNAIRE ASSESSING DIET 10-15 YEARS AGO (1989)

SOBELL, JANET, BLOCK, GLADYS, KOSLOWE, PATRICIA, TOBIN, JORDAN, ANDRES, REUBIN

In 1985, 216 men, participants in the Baltimore Longitudinal Study of Aging, were asked to report on their usual diet during the period 1971–1975. The reference data for past diet consisted of...

A DIETARY AND RISK FACTOR QUESTIONNAIRE AND ANALYSIS SYSTEM FOR PERSONAL COMPUTERS (1989)

SMUCKER, ROBERT, BLOCK, GLADYS, COYLE, LINDA, HARVIN, ANTONIO, KESSLER, LARRY

The authors report the adaptation of a dietary and risk factor questionnaire and analysis system for use with IBM (or compatible) personal computers. This system includes a flexible computer-assisted...

Dietary Factors in Oral and Pharyngeal Cancer (1988)

McLaughlin, Joseph K., Gridley, Gloria, Block, Gladys, Winn, Deborah M., Preston-Martin, Susan, Schoenberg, Janet B., ...

A population-based case-control study of oral and pharyn-geal cancer conducted in four areas of the United States provided information on a number of risk factors, including diet. Interviews were...

VITAMIN SUPPLEMENT USE, BY DEMOGRAPHIC CHARACTERISTICS (1988)

BLOCK, GLADYS, COX, CHRIS, MADANS, JENNIFER, SCHREIBER, GEORGE B., LICITRA, LISA, MELIA, NAN

Detailed data on vitamin supplement use are presented for nine specific vitamins and minerals by a wide range of demographic and behavioral characteristics. Previously recorded but uncoded data from...

EVALUATION OF TWO FOOD FREQUENCY METHODS OF MEASURING DIETARY CALCIUM INTAKE (1987)

CUMMINGS, STEVEN R., BLOCK, GLADYS, McHENRY, KATHY, BARON, ROBERT B.

To assess the ability of food frequency methods to measure current dietary calcium intake in elderly women, the authors administered two types of food frequency instruments to 37 randomly selected...

A DATA-BASED APPROACH TO DIET QUESTIONNAIRE DESIGN AND TESTING (1986)

BLOCK, GLADYS, HARTMAN, ANNE M., DRESSER, CONNIE M., CARROLL, MARGARET D., GANNON, JANET, GARDNER, LILLY

A self-administered diet history questionnaire has been developed for epidemiologic and clinical use. Both the food list and the nutrient values to be associated with it were developed using dietary...

NUTRIENT SOURCES IN THE AMERICAN DIET: QUANTITATIVE DATA FROM THE NHANES II SURVEY: I. VITAMINS AND MINERALS (1985)

BLOCK, GLADYS, DRESSER, CONNIE M., HARTMAN, ANNE M., CARROLL, MARGARET D.

Dietary data from 11,658 adult respondents in the second National Health and Nutrition Examination Survey were used to provide quantitative information regarding the contribution of specific foods to...

NUTRIENT SOURCES IN THE AMERICAN DIET: QUANTITATIVE DATA FROM THE NHANES II SURVEY: II. MACRONUTRIENTS AND FATS (1985)

BLOCK, GLADYS, DRESSER, CONNIE M., HARTMAN, ANNE M., CARROLL, MARGARET D.

Dietary data from 11,658 adult respondents in the second National Health and Nutrition Examination Survey were used to provide quantitative information regarding the contribution of specific foods to...

A METHOD FOR ESTIMATING YEAR OF BIRTH USING SOCIAL SECURITY NUMBER (1983)

BLOCK, GLADYS, MATANOSKI, GENEVIEVE M., SELTSER, RAYMOND S.

Block, G. (NCI, Bethesda, MD 20205), G. M. Matanoski and R. S. Seltser. A method for estimating year of birth using Social Security number. Am J Epidemiol 1983; 118: 377–95. A method for estimating...

Nutritional Factors and Susceptibility to Arsenic-Caused Skin Lesions in West Bengal, India

Mitra, Soma R., Mazumder, D.N. Guha, Basu, Arindam, Block, Gladys, Haque, Reina, Samanta, Sambit, ...

There has been widespread speculation about whether nutritional deficiencies increase the susceptibility to arsenic health effects. This is the first study to investigate whether dietary...

Nutritional Factors and Susceptibility to Arsenic-Caused Skin Lesions in West Bengal, India

Mitra, Soma R., Mazumder, D.N. Guha, Basu, Arindam, Block, Gladys, Haque, Reina, Samanta, Sambit, ...

There has been widespread speculation about whether nutritional deficiencies increase the susceptibility to arsenic health effects. This is the first study to investigate whether dietary...