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Biomedical subjects

F E Thompson

Publications and source records attributed to F E Thompson.

At least 37 records · Page 2Linked to original sources

Practice and attitudes of primary care physicians in a rural southern state concerning HIV/AIDS patients.

In preparing for the development of a plan of care for persons with AIDS and other HIV related conditions, the HIV Services Planning Program, a joint effort of the Department of Family Medicine of the University of Mississippi Medical Center and the Bureau of Preventive Health of the Mississippi State Department of Health, conducted a survey of all primary care physicians throughout the state of Mississippi. The purpose of the survey was to determine health care services provided to persons with HIV/AIDS. Specific areas of interest included: (a) type of medical specialty; (b) location of primary practice; (c) services provided for persons with HIV/AIDS; and (d) utilization of universal blood and body fluid precautions, i.e., barrier techniques. Descriptive statistics were utilized in analyzing responses.

Acquired Immunodeficiency Syndrome↗

Sources of fiber and fat in diets of US women aged 19 to 50: implications for nutrition education and policy.

INTRODUCTION: Many women are not meeting dietary recommendations for fiber and fat intakes. Health educators need to know which foods are major sources of these nutrients. METHODS: This study analyzed the contributions of 27 food groups to fiber, fat, saturated fat, and cholesterol intakes of 2134 women aged 19 to 50 years in USDA's Continuing Survey of Food Intakes by Individuals, the 1985 and 1986 surveys (CSFII 85-86). RESULTS: Major determinants of fiber intake include frequency of use of certain food groups (vegetables, including potatoes, bread, fruit, soups, ready-to-eat cereal) and choice of particular foods within the larger food groups (e.g., whole grain bread, high fiber cereal). Major determinants of total fat, saturated fat, and cholesterol intakes included frequency of use of certain foods (sweet grains, beef, eggs, cheeses/cream, whole milks) and additions to foods (regular salad dressing and butter/margarine). Demographic characteristics were related to various food group consumption parameters. CONCLUSIONS: Information about the relationships between food group and nutrient intake and the effects of household income, race/ethnicity, and region of residence on food group intake indicate opportunities to refine nutritional education programs.

Adult↗

Comparison of two dietary questionnaires validated against multiple dietary records collected during a 1-year period.

The validity of two dietary history questionnaires was examined, one the Health Habits and History Questionnaire (HHHQ) developed by Block et al and the other a questionnaire developed by investigators at the University of Michigan (UM). The reference data consisted of the mean of four 4-day dietary records and recalls collected for 1 year before administration of the questionnaires. The sample of 85 persons included black and white men and women aged 25 to 50 years. The HHHQ was entirely self-administered; the UM questionnaire had both self- and interviewer-administered components. The HHHQ group means were similar to food record estimates for energy and most nutrients, whereas the UM questionnaire produced overestimates for energy and all nutrients examined. Correlations ranged from .31 to .60 (median = .48) for the UM questionnaire and from .42 to .68 (median = .57) for the HHHQ. Use of respondent-reported portion sizes with the HHHQ produced higher correlations than use of investigator-determined "standard" portion sizes (median r = .43 vs .57). Food frequency questionnaires can provide useful nutrient data for individuals as well as groups.

Adult↗

Characteristics of individuals and long term reproducibility of dietary reports: the Tecumseh Diet Methodology Study.

Food frequency reports in 1967-1969 were compared to frequency reports of the same foods asked retrospectively in 1982-1983 and 1967-1969 for 1184 respondents aged 45-64 years in the Tecumseh Community Health Study. The kappa statistic for concordance of the retrospective and baseline reports was used as a summary measure of the individual's ability to reproduce his or her earlier diet report. Reproducibility was estimated for total diet, represented by 83 foods, and for 9 subsets of foods of epidemiologic interest. In bivariate and multivariate analyses, reproducibility was strongly related to stability of diet; those whose diets changed least over the 15-year period had greatest diet reproducibility. Greater total diet reproducibility was also found among men with higher education, among women of less than 110% desirable weight reporting no special diet and among women reporting no medications. Consistent with current models of memory, the retrospective report of diet was strongly related to the current report of diet. Agreement between the retrospective and baseline diet reports was greater than agreement between the current and baseline diet reports. This indicates that, as a proxy for past diet, the retrospective report of diet is superior to the current report. Similar relationships were found for the 9 subset of foods.

Body Weight↗

Dependency on soup kitchens in urban areas of New York State.

We studied the dependency of persons on soup kitchens in Albany, Buffalo, Rochester, Syracuse, and Westchester County, New York. Seventeen percent of the meal recipients were homeless, 62 percent lived in apartments or houses, 20 percent were working, 40 percent were women, and 17 percent had a child in their household. Fifty-nine percent started eating at the soup kitchen more than a year ago, and 51 percent ate five or more meals at soup kitchens in the last week. Most reported they came to the soup kitchen because of economic problems or lack of food; 93 percent had incomes below the poverty threshold. Most used some government food program; 48 percent received food stamps. Utilization of soup kitchens and other programs differed between men and women and between households with and without children.

Adult↗

Comparison of surrogate and subject reports of dietary practices, smoking habits and weight among married couples in the Tecumseh Diet Methodology Study.

Agreement between surrogate and subject reports of current food frequencies and other eating habits, smoking behavior and weight was assessed in 1982-1983 for 180 husbands and wives, aged 45 through 64 years. Agreement was measured by per cent exact agreement and weighted kappa for frequencies of 30 itemized foods or food groups, and for surrogate- and subject-based quintiles of frequencies of eight broad food groups and of vitamin A and C consumption indexes. Surrogate and subject mean frequencies were generally similar, but at the individual level of analysis, agreement varied widely. Agreement was greatest, among the food items and groups, for alcoholic beverages, and among the other items, for smoking status. Extreme misclassification by quintile was very small, but only 40% of persons self-classified in either extreme quintile were similarly classified by their spouses. This level of misclassification may result in the dilution of real relationships between diet and health.

Aged↗

Comparison of estimated nutrient intakes by food frequency and dietary records in adults.

Sixteen days of dietary recall and records collected over 1 year for 228 respondents were compared with an estimate of "usual" diet based on a 116-item food frequency questionnaire (FFQ) for the study year. Respondents were white and black men and women aged 24 to 51. Mean energy values for the total group were 2,111 kcal for the recall/records and 2,766 kcal for the FFQ, a 31% difference. The mean food energy and nutrient values obtained by the FFQ were consistently and significantly higher than the mean recall/record values for all four race-sex groups, although the degree of difference varied by nutrient, food group, and demographic characteristics of the respondents. For the nutrients compared, the smallest difference between methods was for protein--27% for the total group. The greatest difference was for vitamin A--123% for the total sample. Sex-race specific correlation coefficients between methods were relatively high for calcium, vitamin C, and iron.

Adult↗

Correspondence between perceptions of change in diet and 15-year change in diet reports in the Tecumseh Diet Methodology Study.

As part of an effort to assess the most reliable method of obtaining information about long-term dietary intake, a study was conducted of the correspondence between perception of change in diet and measured change in reported diet from 1967 to 1982. Respondents were 1,201 men and women participants in the Tecumseh Food Frequency Study of 1967-1969 who were 45-64 years of age in 1982-1983, the time of the Diet Methodology Study. Perceptions of change were obtained by asking respondents directly if they thought they currently ate each of 12 food groups more often, less often, or as often as they did during the year of their earlier interview. Measured change was obtained by subtracting each respondent's baseline frequency for each of the 12 food groups from his or her current frequency. For 10 of the 12 food groups, correspondence was found between perception of change and measured change; fats and oils added at the table and meat were the exceptions. Significant linear relationships were found between perceptions and measured change for all food groups except fats and oils. However, greatly varying coefficients were associated with terms such as more often or as often as before, thereby limiting the potential utility of combining perceptions of change with current frequencies to obtain a reliable measure of baseline frequencies.

Data Collection↗

Counting calories: partitioning energy intake estimates from a food frequency questionnaire.

Differences in energy estimates between a food frequency questionnaire and a multi-day dietary record can be partitioned into distinct components due to differences in reported frequency of consumption and in reported serving size, and to differences in nutrient composition between the questionnaire standards and the foods reported on the records. The effect of each component on the relative validity of the questionnaire can be assessed by examining its contribution to the differences between the two methods in estimated group intake and in the relative ranking of individual respondents. This methodology was used for the 1984-1985 University of Michigan Food Frequency Study, in which the estimated energy intake from a quantitative food frequency questionnaire was compared with that from 16 days of food records collected over the course of a year from 228 white and black men and women aged 24-51 years. For all race-sex subgroups, mean energy intake estimated from the questionnaire was significantly greater than mean intake estimated from the record. Within race-sex subgroups, the correlations between estimates from the two methods were low, and agreement in classification by tertiles was poor. The differences in group mean energy intake between the methods were due to the effects of discrepancies in both serving size and frequency of consumption. However, the low correlations and poor agreement in classification for individual respondents were due principally to the effect of discrepancies in frequency. These results suggest that improving the accuracy of frequency estimation is a key element in increasing the relative validity of food frequency questionnaires used for epidemiologic research.

Adult↗

Comparison of arm and leg ergometry in patients with moderate chronic obstructive lung disease.

Exercise testing is traditionally performed with leg exercise on either a treadmill or a bicycle ergometer. Many of these tests are terminated before dyspnoea occurs because of leg fatigue, arthritic pain, or claudication. A study was carried out to determine whether arm ergometry testing might serve as an alternative method to leg testing in eight patients with chronic obstructive lung disease. The patients had mild to moderate dyspnoea on exertion and required bronchodilator treatment. They had smoked an average of 62 pack years and had a mean FEV1 of 1.88 l. Arm and leg ergometry yielded similar levels of maximum ventilation (arm 47.2, leg 48.6 l/min), maximum heart rates (126 v 124 beats/min), maximum tidal volume (1.5 v 1.6 l), and respiratory rate (30 v 29 breaths/min); but maximum oxygen consumption (1120 v 966 ml/min), maximum power output (62 v 26 w), and oxygen pulse (9.1 v 7.8 ml/beat) were all higher with leg than with arm ergometry. In addition, ventilation and heart rate at a given level of oxygen consumption were higher for arm than for leg work during both submaximal and maximal exercise. It is concluded that arm ergometry offers an alternative testing method to leg testing in patients with moderate chronic obstructive lung disease.

Arm↗

Within month variability in use of soup kitchens in New York State. p4.

This paper describes the variation in use of soup kitchens throughout the month using data from the New York State Nutritional Surveillance Program. Excluding November, December, and May, when holiday meals created a different pattern of use, number of meals served in soup kitchens generally increased toward the end of the month, averaging 43 per cent higher for Upstate and 14 per cent higher for New York City in the last week as compared to the first week of the month. The overall increase throughout the month and difference in the magnitude of increase between Upstate and New York City corresponds to the timing of income maintenance benefits distribution. Distribution of most public assistance benefits occurs at the beginning of each month in Upstate, whereas it is staggered in New York City throughout the month.

Food Services↗

Dietary vitamin A and lung cancer: results of a case-control study among chemical workers.

A nested case-control study conducted among a cohort of chemical manufacturing employees provided an opportunity to test the hypothesis that lung cancer risk is inversely related to dietary intake of vitamin A. Eligible for study were 308 former male employees who had died of lung cancer between 1940 and 1980. Two control groups, one a decedent and the other a "living" series, were individually matched to the cases one-for-one. Interviews were completed with 734 subjects or their next-of-kin and included a food frequency list. A vitamin A index was developed for each subject based on the frequency of consumption of 29 food items. After adjustment for a number of potentially confounding variables (e.g., smoking, educational level, and use of vitamin supplements), there was evidence that vitamin A intake was inversely associated with lung cancer risk. The effect was most pronounced in the comparisons with the "living" controls and appeared strongest among cigarette smokers. Subjects in the lowest tertile of vitamin A intake had approximately twice the risk of lung cancer as those in the highest. Analyses of an index of carotenoids and of individual food items suggested that plant sources of vitamin A may play a more important role in producing the effect than do animal sources.

Adult↗

Reproducibility of reports of frequency of food use in the Tecumseh Diet Methodology Study.

Frequency reports in 1967-1969 for 83 foods were compared to frequency reports for the same foods asked retrospectively in 1982-1983 about use in 1967-1969 for 1,184 respondents aged 45-64 in the Tecumseh Community Health Study cohort. Food frequency reports of the current (1982-1983) diet were also compared to baseline reports to indicate diet stability and to retrospective reports to indicate the influence of current diet on retrospective reporting. Comparisons were also made for 13 food groups and vitamin A and C indices. Short-term reproducibility of seven foods, measured by two reports 1-3 weeks apart in 1967-1969, was compared to long-term reproducibility for the same foods. Short-term reproducibility was consistently greater than long-term. Reproducibility was associated positively with stability of use. For the two nutrient indices and nine of the ten food groups examined, mean intake estimated from the retrospective report differed significantly from mean intake from the baseline report. Agreement between retrospective and current reports exceeded agreement between retrospective and baseline reports, indicating that retrospective reports were greatly influenced by current behavior; yet, the retrospective reports were better indicators of baseline consumption than were the current reports. While misclassification from use of the retrospective report to measure baseline consumption was large, risk differences may still be detected with usual sample sizes.

Ascorbic Acid↗

Diagnostic and predictive value of the lupus band test in undifferentiated connective tissue disease. A followup study.

The value of the lupus band test (LBT) in predicting outcome of patients with undifferentiated connective tissue disease (CTD) was studied. Thirty-three patients with undifferentiated CTD who had LBT between 1977 and 1982 underwent repeat clinical and serological assessments and LBT at 13 to 59 months followup. Six patients (18%) developed SLE, and 2 (6%) developed rheumatoid arthritis during the followup period. No single, combination, number, or intensity of proteins at the dermal-epidermal junction (DEJ) or epidermal nuclear staining (ENS) could be used to predict which undifferentiated CTD patients would develop SLE at followup. Findings on LBT were not significantly different in patients with undifferentiated CTD versus SLE.

Complement C3↗

Blood pressure and nutrition in adults. The National Health and Nutrition Examination Survey.

To provide a contemporary profile of blood pressure and nutritional and sociodemographic relationships in the adult US population, data from the first National Health and Nutrition Examination Survey ( NHANES -I), 1971-1975, were analyzed. Systolic and diastolic blood pressures increased with increasing age, but trends were different by sex and race groups. Body mass index (weight/ height2 ) was the nutritional factor most strongly and consistently related to blood pressure. Among dietary constituents, alcohol consumption and calcium and phosphorus intake were the only variables having consistent and independent relationships to blood pressure. Sodium content of food and salt use had no relationship, and sodium/potassium food content had only an inconsistent association. Regarding serum nutritional measures, serum calcium was directly related and serum phosphorus was inversely related to blood pressure. Serum urate, serum aspartate aminotransferase, and hemoglobin were also independently related to systolic and diastolic blood pressures. There were few important differences by race or sex in these correlates. These observations from a representative sample of the US population have useful implications for prevention and treatment of high blood pressure.

Adult↗

Milk fat and gastrointestinal illness.

The population of a pediatric practice was followed prospectively and determinants of acute gastrointestinal illness were evaluated in a nested age-matched case-control study. Children over age one taking low fat milk as their only milk source in the three weeks prior to illness had five times the risk of a doctor's visit for acute gastrointestinal illness as did children taking only whole milk during the same time period. This increased risk could not be explained by numerous potentially confounding variables or potential biases. There was no indication that the increased risk differed for rotavirus positive or rotavirus negative illness, or that it varied by children's age.

Animals↗