Intervention to increase screening mammography among women 65 and older

This paper reports the results of a practice-based intervention program to increase mammography screening among women 65 and older who receive their health care in the private sector. Forty-three primary-care practices and 2147 women in central and western North Carolina were enrolled in the study, and 1911 women completed all phases of the study. The intervention was a three-stage educational and counseling program designed to become progressively more intensive at each stage. The interventions included provider education in the form of current information on issues in mammography for older women, simply written educational materials on breast cancer and screening mailed to women, and a brief telephone counseling session for the women. While the analysis revealed no overall effect across all three stages of the intervention program, tests for interaction indicated a significant program effect for women who were 80 or older, had less than 9 years of education, were black, or had no private insurance to supplement Medicare. The results suggested that providing primary-care physicians with information on screening older women and providing the women with useful educational materials can increase participation in screening mammography among subgroups of women currently least likely to receive mammography screening.

Molecular analysis of genomic DNA allows rapid, and accurate, prenatal diagnosis of peroxisomal D-bifunctional protein deficiency

Prenatal diagnosis was requested for a couple with a previous child affected by the peroxisomal disorder D-bifunctional protein deficiency. Prior analysis of the D-bifunctional protein cDNA sequence from the propositus had shown that it was missing 22 bp. This was subsequently attributed to a point mutation in the intron 5 donor site (IVS5 + 1G>C) of the D-bifunctional protein gene. Consistent with parental consanguinity, the patient was shown to be homozygous for this mutation, which is associated with loss of a Hph 1 restriction site in the genomic sequence. Prenatal testing of the fetus using genomic DNA isolated from uncultured amniocytes indicated that both alleles of the D-bifunctional protein had the IVS5 + 1G>C substitution. The peroxisomal defect was later confirmed biochemically using cultured amniocytes, which were found to have elevated levels of very long chain fatty acids (VLCFA). This is the first report of prenatal diagnosis of D-bifunctional protein deficiency using molecular analysis of genomic DNA.

Quantification of galactosylsphingosine in the twitcher mouse using electrospray ionization-tandem mass spectrometry

Globoid cell leukodystrophy (Krabbe disease) is an autosomal recessive inherited neurodegenerative disorder caused by the deficiency of the lysosomal enzyme beta-galactosylceramidase. The pathogenesis of the disorder has been proposed to arise from the accumulation of the cytotoxic metabolite galactosylsphingosine (psychosine). The twitcher mouse is a naturally occurring murine model of globoid cell leukodystrophy. We have developed a rapid, sensitive, and specific mass spectrometric method for determining the galactosylsphingosine concentration in the tissues of twitcher mice. Galactosylsphingosine is extracted from the tissues in methanol, isolated using strong cation-exchange and C18 solid-phase extraction chromatography, and then directly analyzed using electrospray ionization-tandem mass spectrometry. A lactosylsphingosine internal standard has been employed for quantification. The assay demonstrated significant accumulation of galactosylsphingosine in the brain, spinal cord, and kidney of twitcher mice. It is anticipated that this method may be of use in the monitoring of experimental therapies for globoid cell leukodystrophy.

Characterization of urinary sulfatides in metachromatic leukodystrophy using electrospray ionization-tandem mass spectrometry

Metachromatic leukodystrophy is an inherited disorder characterized by a deficiency of the lysosomal enzyme arylsulfatase A and the subsequent accumulation of sulfatide in neural and visceral tissues. Clinical diagnosis is usually confirmed by in vitro analysis of arylsulfatase A activity, but may be complicated in cases of arylsulfatase A pseudodeficiency and sphingolipid activator protein deficiency. Large quantities of sulfatide can be detected in the urinary sediment of affected individuals and its measurement can aid in diagnosis. A number of complex methods have been described for the measurement of urinary sulfatide excretion. We have developed a rapid, sensitive, and specific mass spectrometric method for determining urinary sulfatide concentration of metachromatic leukodystrophy patients. Sulfatides are extracted from urine and then directly analyzed using electrospray ionization-tandem mass spectrometry. A sulfatide internal standard has been employed for quantification. The assay has demonstrated significant elevations in the concentrations of several hydroxy and nonhydroxy molecular species of sulfatide in the urine of metachromatic leukodystrophy patients compared to age-matched controls. Analysis of urinary sulfatides in arylsulfatase A pseudodeficiency patients showed a mild elevation in some individuals when related to urinary phosphatidylcholine.

Effects of estrogen replacement on the progression of coronary-artery atherosclerosis

BACKGROUND

Heart disease is a major cause of illness and death in women. To understand better the role of estrogen in the treatment and prevention of heart disease, more information is needed about its effects on coronary atherosclerosis and the extent to which concomitant progestin therapy may modify these effects.

METHODS

We randomly assigned a total of 309 women with angiographically verified coronary disease to receive 0.625 mg of conjugated estrogen per day, 0.625 mg of conjugated estrogen plus 2.5 mg of medroxyprogesterone acetate per day, or placebo. The women were followed for a mean (+/-SD) of 3.2+/-0.6 years. Base-line and follow-up coronary angiograms were analyzed by quantitative coronary angiography.

RESULTS

Estrogen and estrogen plus medroxyprogesterone acetate produced significant reductions in low-density lipoprotein cholesterol levels (9.4 percent and 16.5 percent, respectively) and significant increases in high-density lipoprotein cholesterol levels (18.8 percent and 14.2 percent, respectively); however, neither treatment altered the progression of coronary atherosclerosis. After adjustment for measurements at base line, the mean (+/-SE) minimal coronary-artery diameters at follow-up were 1.87+/-0.02 mm, 1.84+/-0.02 mm, and 1.87+/-0.02 mm in women assigned to estrogen, estrogen plus medroxyprogesterone acetate, and placebo, respectively. The differences between the values for the two active-treatment groups and the value for the placebo group were not significant. Analyses of several secondary angiographic outcomes and subgroups of women produced similar results. The rates of clinical cardiovascular events were also similar among the treatment groups.

CONCLUSIONS

Neither estrogen alone nor estrogen plus medroxyprogesterone acetate affected the progression of coronary atherosclerosis in women with established disease. These results suggest that such women should not use estrogen replacement with an expectation of cardiovascular benefit.

The estrogen replacement and atherosclerosis (ERA) study: study design and baseline characteristics of the cohort

The Estrogen Replacement and Atherosclerosis (ERA) trial is a three-arm, randomized, placebo-controlled, double-blind trial to evaluate the effects of estrogen replacement therapy (0.625 mg/day oral conjugated estrogen) with or without continuous low-dose progestin (2.5 mg oral medroxyprogesterone acetate/day) versus placebo on progression of atherosclerosis. A total of 309 postmenopausal women at five sites underwent baseline coronary angiography and were randomized. Participants will have repeat coronary angiography after an average of 3.25 years of treatment. The primary outcome of interest will be change in minimum diameter of the major epicardial segments, as assessed by quantitative coronary angiography. The primary aim is to test the hypothesis that either form of hormone therapy will slow the progression or induce regression of coronary atherosclerosis compared to placebo. The secondary aims are to assess the effects of the two treatments versus placebo on endothelial function (measured using flow-mediated vasodilator responses), on several presumed mediators of estrogen's effect on atherosclerosis (i.e., plasma lipids and lipoproteins, blood pressure, glucose metabolism, hemostatic factors, and antioxidant activity), on other factors that influence the development of coronary heart disease (i.e., diet, smoking status, exercise, weight, and health-related quality of life issues), and on clinical cardiovascular events. The ERA trial is the first angiographic endpoint clinical trial to examine the effects of postmenopausal hormone replacement on coronary atherosclerosis in women. It will provide an unparalleled opportunity to determine if either regimen of hormone therapy is effective in slowing the progress of angiographically defined coronary atherosclerosis. This study will complement other estrogen replacement trials, such as the PEPI, HERS, and Women's Health Initiative studies, to provide a more comprehensive examination of the effects of estrogen replacement on cardiovascular risk factors, anatomic and functional manifestations of atherosclerosis, and risk for coronary heart disease in postmenopausal women. Control Clin Trials 2000;21:257-285

Women's cardiovascular health

Significant coronary artery disease is uncommon in premenopausal women, but it is the leading cause of death among postmenopausal women. This article briefly discusses atherosclerotic disease in women, including the effects of menopause and estrogen, the role of cholesterol, hypertension, exercise and weight control, smoking cessation, and diabetes mellitus. The role of screening and testing for coronary artery disease and carotid artery stenosis is discussed. Recommendations for prevention and patient education are included in each section.

Skin cancer prevention and early detection practices in a sample of rural women

BACKGROUND

The incidence of skin cancer in the United States is rapidly increasing, and current estimates suggest that about one in five persons will be diagnosed with skin cancer in their lifetime. However, comparatively little is still known about the prevention and early detection behaviors of healthy individuals. This study presents information on prevention and early detection practices for a sample of non-Hispanic rural white women.

METHOD

Interviews were conducted with 1,295 women age 20 or older who were patients in six public health departments and one primary-care clinic serving a low-income population, all located in rural western North Carolina.

RESULTS

Both prevention and early detection behaviors were found to be infrequent in this population. Low knowledge of skin cancer, younger and older ages, and low education characterized women least likely to practice prevention. Low knowledge, younger age, and low education characterized women least likely to practice early detection. Perceived barriers to cancer screening including cost, lack of symptoms, and denial also were predictive of a low likelihood of both prevention and early detection behavior. Fatalism and fear of the stigma associated with cancer also were predictive of lower participation in selected early detection behaviors. A summary general barriers score was significantly associated with all prevention and early detection behaviors examined in the study.

CONCLUSIONS

The results indicate a need for skin cancer education among this population.

Using standardized patient instructors to teach health promotion interviewing skills

BACKGROUND

Medical students report knowledge, but inadequate skills, in health promotion and disease prevention (HPDP) technology. An established methodology using standardized patient instructors (SPIs) was adapted and tested for effectiveness in teaching HPDP.

METHODS

Thirteen lay persons were trained and given profiles showing high cardiovascular risks. During their family medicine clerkship, 104 students engaged in one-to-one exercises with the SPIs. Half of these sessions were spent in the doctor-patient interview; in the other half, the SPI gave specific feedback using a validated scale. Encounters were videotaped.

RESULTS

The students rated the SPI feedback as the program's most valuable aspect and the videotaping as the least valuable. The SPI feedback was rated valuable by 90%-96% of the students. The students also reported that the skills acquired were likely to be used, and they had learned "much" or "very much." As a group, students' self-assessments did not differ from the SPIs' assessments of the students.

CONCLUSION

Lay SPIs are a powerful educational tool.

Oxidation of pristanic acid in fibroblasts and its application to the diagnosis of peroxisomal beta-oxidation defects

Pristanic acid oxidation measurements proved a reliable tool for assessing complementation in fused heterokaryons from patients with peroxisomal biogenesis defects. We, therefore, used this method to determine the complementation groups of patients with isolated defects in peroxisomal beta-oxidation. The rate of oxidation of pristanic acid was reduced in affected cell lines from all of the families with inherited defects in peroxisomal beta-oxidation, thus excluding the possibility of a defective acyl CoA oxidase. Complementation analyses indicated that all of the patients belonged to the same complementation group, which corresponded to cell lines with bifunctional protein defects. Phytanic acid oxidation was reduced in fibroblasts from some, but not all, of the patients. Plasma samples were still available from six of the patients. The ratio of pristanic acid to phytanic acid was elevated in all of these samples, as were the levels of saturated very long chain fatty acids (VLCFA). However, the levels of bile acid intermediates, polyenoic VLCFA, and docosahexaenoic acid were abnormal in only some of the samples. Pristanic acid oxidation measurements were helpful in a prenatal assessment for one of the families where previous experience had shown that cellular VLCFA levels were not consistently elevated in affected individuals.

Cultural issues in the development of cancer control programs for American Indian populations

Cancer is the third-leading cause of death among American Indians. The persistent disadvantage in cancer survival rates among American Indian populations emphasizes the importance of developing effective cancer control programs for prevention and early detection. However, substantial cultural differences between American Indians and whites can affect the success of these programs. This paper examines the concept of cultural sensitivity in the context of developing cancer control programs for American Indian populations. It explores fundamental differences in beliefs, behaviors, and values between American Indian and white majority cultures, and presents examples of culturally sensitive health education programs. The paper highlights insights and experiences gained in developing the North Carolina Native American Cervical Cancer Prevention Project, and gives recommendations for the development of future programs.

A comparison of risk assessment models for term and preterm low birthweight

BACKGROUND

Most epidemiological research dealing with the assessment of risk for low birthweight has focused on all low birthweight births. Studies that have attempted to distinguish between term and preterm low birthweights have tended to examine preterm low birthweight, since the risk of perinatal mortality and morbidity is greatest for this group of infants.

METHOD

This study uses data from 25,408 singleton births in a 20-county region in North Carolina to identify and compare risk factors for term and preterm low birthweights, and also examines the usefulness of separate multivariate risk assessment systems for term and preterm low birthweights that could be used in the clinical setting.

RESULTS

Risk factors that overlap as significant predictors of both types of low birthweight include race, no previous live births, smoking, weight under 100 lb, and previous preterm or low birthweight birth. Age also is a significant predictor of both types of low birthweight, but in opposite directions. Younger age is associated with reduced risk of term low birthweight and increased risk of pattern low birthweight.

CONCLUSION

Comparison of all risk factors indicates that different multivariate models are needed to understand the epidemiology of preterm and term low birthweights. In terms of clinical value, a general risk assessment model that combines all low birthweight births is as effective as the separate models.

Use of process evaluation to guide health education in Forsyth County's project to prevent cervical cancer

The Forsyth County, NC, Cervical Cancer Prevention Project is a 5-year public health education program designed to increase the proportion of black women in the county who are appropriately screened for cervical cancer. In this paper, the authors report on process evaluation--the procedures used to monitor the intervention and to insure that the target population was reached with a high quality, community-based health education program. A system that encompasses documentation of program activities, interviews with women in waiting rooms of primary care providers, semiannual interviews with a panel of approximately 100 women from the target population, and telephone followup with participants in direct education workshops was designed and implemented. Through October 1990, more than 2,100 interviews had been conducted. Data from these activities have facilitated continued development and refinement of educational materials, provided guidance for developing new strategies for reaching the target population, and provided continuous feedback to program managers to allow monitoring the impact of all program activities.

The study of psychological factors in couples receiving artificial insemination by donor: a discussion of methodological difficulties

Artificial insemination by donor (AID) may be the only means by which many infertile couples are able to have a child. However, the treatment is not invariably successful and it is postulated in the literature that psychological factors may be implicated when conception does not occur. Further investigation is required to establish the nature of any relationship between psychological stress and conception after AID but designing an adequate study is confounded by many methodological difficulties. These include issues relating to ethics, recruitment, measurement and logistics. In this paper, such aspects are examined and the importance of research in this field for nursing is highlighted.

Methods for determining patient improvement following visits to family physicians

Two instruments were used to assess patient improvement following visits to providers in a university based family practice center--the Modified Williamson Functional Assessment (MWFA) and the Mini-Duke-UNC Health Profile (Mini-DUHP). Of the 90 patients over the age of 18 seen for problem or health maintenance visits who were included in the study, 64 adequately completed the instruments at the time of the visit and one month later. Functional assessments by in-person, mail, and telephone methods of administration were similar. Patients' MWFA scores did not significantly improve by the time of the one-month follow-up. Mini-DUHP subscales for symptom and physical function also did not significantly improve. Mini-DUHP emotional, social, and composite scores indicated a decrease in function following the visits, particularly visits for health maintenance. MWFA and Mini-DUHP scores correlated only modestly, with the highest correlation occurring between Mini-DUHP Physical Score and the MWFA (0.414 or 0.509, P less than .001). Additional study is needed to identify or develop an instrument that can adequately assess broad changes in functioning for multiple diagnoses following specific physician interventions, and the reason for the decline in emotional and social function following visits needs further elucidation and evaluation.

Development of a community cancer education program: the Forsyth County, NC cervical cancer prevention project

The authors outline the development and implementation of a public health education program for cervical cancer screening among black women in Forsyth County, NC. The educational program includes distributing electronic and printed information media messages, a program of direct education for women, and providing information on current issues in cervical screening to primary-care physicians. Program development was based on social marketing principles, the PRECEDE model, and the communication-behavior change (CBC) model. Since a true experimental design was not feasible, program evaluation is based on several complementary quasi-experimental designs. Analysis of baseline data indicate that the county where the intervention is taking place, and the control county, are similar with respect to both demographic characteristics and the current level of screening activity. Preliminary results indicate that the program has been successful in raising women's level of awareness of cervical cancer and cervical screening.

Regional program for prevention of premature birth in northwestern North Carolina

We present our experience with introducing and implementing a prematurity prevention program in a 20-county region in northwest North Carolina. The program is based on the risk assessment and educational model. In the first 25 months of results available, 17,370 births occurred in women enrolled in the project. During 1985, 42.5% of all births in the region occurred in the project. During the time span examined, a downward trend was seen for rates of low birth weight births in public and private patients and for very low birth weight births in private patients. During 1985, private births in the project were significantly less likely to be low birth weight or very low birth weight than private births to women not in the project. These results suggest that regional implementation of prematurity prevention programs is feasible and that such programs are particularly appropriate for private patients.