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Prenatal drug use in Minneapolis-St Paul, Minn. A 4-year trend.

OBJECTIVES: To determine the rates of maternal ingestion of cocaine, marijuana, and opiates in women from Minneapolis-St Paul, Minn, in 1993 and compare them with rates observed in 1989; and to compare outcomes of newborns born to those women with and without evidence of prenatal drug ingestion. STUDY DESIGN: The meconium from newborns of a representative cluster-based sample of women from Minneapolis-St Paul was analyzed for metabolites of cocaine, marijuana, and opiates. The newborns were consecutive births in four urban and suburban hospitals. Maternal demographic information and newborn outcome data were collected and matched to the meconium samples. The race, age, and socioeconomic status of the mothers whose newborns were screened were the same as the demographic characteristics of all women delivering babies in Minneapolis-St Paul in 1990 and 1991. SETTING: Metropolitan hospitals of Minneapolis-St Paul. MAIN RESULTS: Of the 1333 samples, 27 (2.0%) were cocaine positive, 35 (2.6%) were tetrahydrocannabinol positive, and 16 (1.2%) were opiate positive. There were 168 women (22.6%) reporting that they smoked. Detection of tetrahydrocannabinol and cocaine was more common in newborns of women of color, those receiving medical assistance, and those over age 23 years. Newborns with meconium samples positive for cocaine or tetrahydrocannabinol had slightly lower average birth weights but were no more likely to be premature or to require neonatal intensive care unit admission than newborns with no drugs detected in their meconium. Newborns of mothers who smoked throughout pregnancy had lower average birth weights and higher rates of prematurity and neonatal intensive care unit admissions. Standardized rates of cocaine detection in the four hospitals decreased from 4.0% in 1989 to 2.0% in 1993. CONCLUSIONS: Rates of perinatal cocaine detection have declined in the Twin Cities of Minneapolis-St Paul over the past 4 years. In this population, self-reported smoking was associated with more serious adverse outcomes of the newborns than was the detection of cocaine, marijuana, or opiates.

Adolescent↗

Comparison of medical care and one- and 12-month mortality of hospitalized patients with acute myocardial infarction in Minneapolis-St. Paul, Minnesota, United States of America and Göteborg, Sweden.

We compared medical care and mortality through 1-year of hospitalized acute myocardial infarction (AMI) patients in 2 large metropolitan areas in the United States and Sweden. All hospitalized AMI discharges (International Classification of Diseases, 9th revision [ICD9] codes 410) occurring among 30 to 74-year-old residents of the Minneapolis-St. Paul metropolitan area in 1990 and Göteborg, Sweden, in 1990 to 1991 were identified and their medical records examined. There were dramatic differences in medical care during the index hospitalization of AMI patients between Minneapolis-St. Paul and Göteborg. Use of thrombolytic therapy, coronary angioplasty, bypass surgery, calcium antagonists and lidocaine was more common in Minneapolis-St. Paul; beta blockers were more frequently used in Göteborg, and aspirin use was similar. Despite these large differences, neither 28-day nor 1-year mortality of hospitalized AMI patients differed significantly. The marked differences found in the early treatment of AMI between Minneapolis-St. Paul and Göteborg, combined with the negligible differences observed in short- and long-term mortality, raise questions about the most effective and efficient allocation of medical resources.

Adult↗

Compound Heterozygous Hemoglobin Minneapolis-Laos and Codon 41/42 (-TTCT) in a Thai Female Adult: A Case Report and Literature Review.

Thalassemia is a prevalent genetic disorder in Southeast Asia. The Hemoglobin Minneapolis-Laos variant is very rarely reported with only two previously published reports that profile a total of three patients. Here, we present the first reported case of compound heterozygous β zero (β0)-thalassemia and Hemoglobin Minneapolis-Laos in a 46-year-old Thai female. She presented at Siriraj Hospital (Bangkok, Thailand) with chronic microcytic anemia, which is a more severe phenotype than would be expected from either trait alone. Initial hemoglobin electrophoresis via high-performance liquid chromatography and capillary electrophoresis revealed elevated hemoglobin A2 (5.5% and 6.3%, respectively), which is a finding consistent with a β-thalassemia trait, but this finding failed to explain the full extent of her anemia. Next-generation sequencing was then performed to investigate for a congenital red blood cell disorder. The results identified the following two mutations in the β-globin gene (HBB): heterozygous β0-thalassemia codon 41/42 (-TTCT), and HBB c.356T >A, the latter of which is consistent with hemoglobin Minneapolis-Laos. This case highlights the importance of advanced genetic testing to diagnose rare hemoglobin variants that cannot be identified by conventional investigation and further contributes to our understanding of this rare combination's clinical phenotype.

Humans↗

Serum sialic acid and its correlates in community samples from Akita, Japan and Minneapolis, USA.

OBJECTIVE: The concentration of serum total sialic acid (S-TSA) is one recently investigated risk marker for cardiovascular mortality and atherosclerosis. Since the mortality from coronary heart disease is higher in the United States than in Japan, one could expect the S-TSA to be higher among Caucasian US citizens than among Japanese citizens, a hypothesis that is tested in this study. DESIGN: Cross-sectional study of population-based samples of Japanese and US Caucasian men and women. SETTING: The rural community Akita, Japan, and the suburbs of Minneapolis, Minnesota. SUBJECTS: These were 75 consecutive men and women from Akita and Minneapolis respectively aged 47-69 years in 1990. People who had smoked cigarettes during the past 5 years; who had a history of diabetes mellitus, liver disease, coronary heart disease, or stroke; or who were taking anticoagulants were excluded. OUTCOME MEASURES: Serum total sialic acid levels in male and female Japanese and US Caucasian subjects with adjustment for age, systolic blood pressure, fibrinogen, triglycerides and in women also for menopausal status. Race and sex-specific correlations with serum total sialic acid for selected cardiovascular risk markers. RESULTS: The entire sialic acid distributions were shifted to the right in Caucasian men and women compared to Japanese men and women. The mean +/- standard deviation concentrations of S-TSA were 54.1 +/- 5.3 mg/dl in Japanese men and 58.7 +/- 5.6 mg/dl in Caucasian men (P < 0.001). In women, the concentrations were 54.8 +/- 5.1 and 63.1 +/- 6.0 mg/dl respectively (P < 0.001). S-TSA level correlated significantly and positively with fibrinogen levels in Caucasian and Japanese men and women and with triglyceride levels in Caucasian and Japanese men and in Caucasian women but not in Japanese women. After adjustment for age, systolic blood pressure, fibrinogen, triglycerides and menopausal status, the sialic acid levels were 2.2 (P = 0.009) and 6.2 (P < 0.001) mg/dl higher in Caucasian compared to Japanese men and women respectively. CONCLUSIONS: Higher S-TSA levels in Caucasians living in Minneapolis compared to Japanese living in Akita, Japan is in concordance with the higher cardiovascular mortality in the US. Differences in S-TSA levels may reflect international differences in the prevalence of atherosclerosis.

Aged↗

Air pollution and hospital admissions for respiratory causes in Minneapolis-St. Paul and Birmingham.

We investigated the association between air pollution and hospital admissions for chronic obstructive pulmonary disease and pneumonia among the elderly in Minneapolis-St. Paul, MN, and Birmingham, AL, over the period January 1, 1986, to December 31, 1991. Pollutants included in our analyses were PM10 (particulate matter less than 10 microns in aerodynamic diameter), SO2, NO2, O3, and CO in Minneapolis-St. Paul, and PM10, O3, and CO in Birmingham. After adjusting for temperature, day of week, season, and temporal trends, we found little evidence of association between air pollution and hospital admissions for respiratory causes in Birmingham. In contrast, we found that air pollution was associated with hospital admissions for respiratory causes in Minneapolis-St. Paul. Among the individual pollutants, O3 was most strongly associated with admissions (estimated increase in hospital admissions associated with a 15-parts-per-billion increase in O3 on the previous day = 5.15%; 95% confidence interval = 2.36-7.94%), and this association was robust in the sense that it was little affected by the simultaneous consideration of other pollutants. PM10, SO2, and NO2 were also associated with hospital admissions, although none could be singled out as being more important than the others.

Aged↗

Screening for tuberculosis infection among secondary school students in Minneapolis-St. Paul: policy implications.

Three students in the St. Paul Public Schools were diagnosed with active tuberculosis (TB) in late 1991 and early 1992. To define the prevalence of TB infection in St. Paul and Minneapolis, we conducted school-based screening projects in the St. Paul and Minneapolis public schools during 1992 and 1993. In St. Paul, 7,596 (74.8%) students in grades six through 12 received Mantoux tests; 268 (3.5%) were reactive. Infection rates varied significantly by country of birth, with students born outside the United States more likely to be Mantoux reactors than U.S.-born students (RR = 20.2; 95% CI = 14.9-27.3; p < 0.001). In Minneapolis, 752 (47.2%) eighth-grade students received Mantoux tests; 23 (3.1%) were reactive. As in St. Paul, infection rates varied by country of birth; students born outside the United States were more likely to have reactive Mantoux tests than students born in this country (RR = 13.2; 95% CI = 5.6-31.4; p < 0.001). We conclude that routine TB screening of school students is not warranted in Minnesota, although school-based screening targeted at the highest risk students, particularly those born outside the United States, may be a beneficial prevention strategy.

Adolescent↗

PM10, ozone, and hospital admissions for the elderly in Minneapolis-St. Paul, Minnesota.

Several recent studies have reported associations between airborne particles and/or ozone and hospital admissions for respiratory disease. PM10 has rarely been used as the particle exposure measure, however. This study examined whether such an association could be seen in Minneapolis-St. Paul, Minnesota, which has daily monitoring data for PM10. Data on hospital admissions in persons aged 65 y and older were obtained from Medicare records for the years 1986 through 1989. Daily counts of admissions, by admit date, were computed for pneumonia (ICD9 480-487) and chronic obstructive pulmonary disease (COPD) (ICD9 490-496). Classification was by discharge diagnosis. Daily air pollution data from all monitoring stations for ozone and PM10 in Minneapolis-St. Paul were obtained, and the daily average for each pollutant was computed. An average of approximately six pneumonia admissions and two admissions for chronic obstructive pulmonary disease occurred each day. Poisson regression analysis was used to control for time trends, seasonal fluctuations, and weather. PM10 was a risk factor for pneumonia admissions (relative risk [RR] = 1.17, 95% confidence interval [CI] = 1.33-1.02) and COPD admissions (RR = 1.57, 95% CI = 2.06-1.20). Ozone was also associated with pneumonia admissions (RR = 1.15, 95% CI = 1.36-0.97). The relative risks are for an increase of 100 micrograms/m3 in daily PM10 and 50 ppb in daily ozone concentration. Several alternative methods for controlling for seasonal patterns and weather were used, including nonparametric regression techniques. The results were not sensitive to the methods. When days exceeding the National Ambient Air Quality Standard for either pollutant were excluded, the association remained for both pneumonia (RR = 1.18, 95% CI = 1.34-1.03 for PM10, and RR = 1.18, 95% CI = 1.41-0.99 for ozone) and COPD (RR = 1.54, 95% CI = 2.06-1.16 for PM10).

Aged↗

Secular trends in dietary macronutrient intake in Minneapolis-St, Paul, Minnesota, 1980-1992.

Trends in dietary macronutrient intake were evaluated in population-based surveys conducted in adults aged 25-74 years in 1980-1982, 1985-1987, and 1990-1992 in the seven-county Minneapolis-St. Paul metropolitan area. A 24-hour dietary recall (n = 6,499) was completed by a random 50% sample. The authors obtained energy intake for each macronutrient (protein, carbohydrate, fat, saturated fat, monounsaturated fat, polyunsaturated fat, and alcohol). Tine trends for percentage of total energy were analyzed using a generalized linear mixed model. While energy intake remained stable over time, macronutrient composition changed substantially. In 1980-1982, the caloric distribution for men comprised 15.8% protein, 39.4% fat, 40.9% carbohydrate, and 3.9% alcohol; similar findings were observed in women (15.7% protein, 38.9% fat, 43% carbohydrate, and 2.4% alcohol). From 1980 to 1992, total fat intake decreased 4.7% in men and 4.9% in women (p < 0.001). The decline was greatest for monounsaturated fat, although saturated and polyunsaturated fat intake also fell. During this same period, carbohydrate intake increased 5.7% and 5.8% in men and women, respectively (p < 0.001). Alcohol intake decreased in men and women (p < 0.01), while protein intake remained stable. In summary, the Minneapolis-St. Paul metropolitan area diet shifted substantially during the 1980s toward more carbohydrate and lower fat and alcohol intake.

Adult↗

Hemoglobin Andrew-Minneapolis (beta 144 (HCl) lysine----asparagine) in a Japanese family.

Hemoglobin Andrew-Minneapolis, an abnormal hemoglobin with an asparagine residue substituted for a lysine at position 144 of the beta-globulin chains, was identified in three members of two generations in a Japanese family. The carriers of hemoglobin Andrew-Minneapolis showed false high levels of hemoglobin A1c, as measured by the standard cation exchange high performance liquid chromatography, and a moderate tendency for erythrocytosis. This family is the first report of this abnormal hemoglobin in Japan.

Adult↗

Discrepancies in racial designations of school children in Minneapolis.

To determine the frequency of inaccuracies in racial designations of school children in a health survey, racial designations were examined for a sample of 1,509 children in Minneapolis public schools who participated in the first home interview of the Minneapolis Children's Blood Pressure Study. The data were obtained from three sources: the school enrollment data based on parentally supplied information and teachers' visual judgments, school survey interviewers participating in a research project, and the parents themselves, at home interviews. Assuming the correctness of the information obtained from the parent in the home interview, cross tabulation comparisons were made of the accuracy of the information obtained from the other sources, and within sources. Results show a high degree of agreement between the parents' or teachers' designations at enrollment, and survey interviewers' sight judgments. Furthermore, sight judgments of interviewers show high repeatability. There was a significant degree of disagreement between the designations by teachers' and screeners' visual judgments, obtained in school, and the interviews with the parents. Misidentification occurred for up to 20 percent of Native American children, a rate which, if prevalent, may significantly affect public health studies which are based on racial identifications of school children. When possible, researchers studying Native American or mixed race populations should verify racial designations from school documents or sight judgments. Questionnaires to be answered by parents need to have sufficiently detailed categories to enable parents of different racial groups to identify different racial groups accurately.

Black or African American↗

Communicable disease in African immigrants in Minneapolis.

BACKGROUND: Despite increasing numbers of African immigrants to the United States, there is a lack of detailed information about their health problems. METHODS: Data on communicable diseases were obtained from the charts of all 102 patients who had emigrated from Africa in the last 5 years and were seen at an urban clinic in Minneapolis, Minn, during the last 7 months of 1997. RESULTS: Eight patients had active tuberculosis, 10 had hepatitis B, 7 trichuriasis, 2 amebiasis, 1 schistosomiasis, 1 ascariasis, 2 human immunodeficiency virus infection, and 1 malaria. All patients tested had antibodies to hepatitis A, 55% to hepatitis B, and 3% to hepatitis C. Characteristics of these patients are described. CONCLUSIONS: Communicable diseases are common in African immigrants, often despite a healthy appearance and prolonged residence in the United States. Careful screening is warranted.

Adult↗

Aminoglycoside resistance in gram-negative bacilli during increased amikacin use. Comparison of experience in 14 United States hospitals with experience in the Minneapolis Veterans Administration Medical Center.

Resistance to amikacin, gentamicin, and tobramycin was surveyed prospectively during controlled aminoglycoside usage in 14 hospitals. Following an initial baseline period (minimum, three months) during which gentamicin use predominated, gentamicin and tobramycin were placed on restrictive control, establishing amikacin as the aminoglycoside of general use (86 percent of total aminoglycoside usage). During an average of 35 months' restriction of gentamicin and tobramycin, significant reductions in gram-negative resistance to gentamicin (8.4 to 7.0 percent, p less than 0.001) and tobramycin (6.0 to 5.3 percent, p less than 0.01) were observed. The most significant decreases in resistance to gentamicin and tobramycin (p less than 0.001) were found for Pseudomonas aeruginosa, Klebsiella species, Serratia species, and Proteus species. Amikacin resistance among gram-negative bacilli was observed to increase marginally from 1.4 to 1.7 percent (p less than 0.05) during the surveillance period, primarily due to a significant increase in resistance among P. aeruginosa (3.0 to 3.9 percent, p = 0.05). These data were compared with data from a similar surveillance program at the 700-bed Minneapolis Veterans Administration Medical Center. Over a period of 54 months, both gentamicin and tobramycin resistance decreased significantly when amikacin was used (p less than 0.001), then increased with reintroduction of gentamicin (p less than 0.05), and decreased significantly with reintroduction of amikacin (p less than 0.001). Despite predominant amikacin use for a total of 38 months, amikacin resistance did not increase and actually decreased significantly (p less than 0.05) in the last 12 months.

Amikacin↗

Urban lead levels in Minneapolis: the case of the Hmong children.

This study uses soil lead as a means of describing the urban lead levels in the metropolitan area of the Twin Cities, and assesses the soil lead levels next to homes of neighborhoods of the metropolitan area. Lead levels of rural soils are around 5 micrograms/g. Near the city limits they increase to 25-50 micrograms/g, and in the central business district they are around 500 to 1000 micrograms/g, or over 100 times greater than in the rural areas. Many Hmong children are suffering from undue lead absorption. The homes of the Hmong children were all located in inner-city neighborhoods. Soil around these homes was compared to soils around homes of a neighborhood away from the inner city. Fifty percent of the Hmong children with lead poisoning inhabit homes which have soil lead levels of 500-999 micrograms/g and 40% live in homes with lead levels of 1000 micrograms/g or more. One home of ten in the outer city has soil lead levels above 500 micrograms/g. The lead sources of the inner city include house paint and leaded gasoline from vehicle traffic. Raising children in high lead environments as found in the Minneapolis inner city has long-term implications because of mental and behavioral deficits that are known to result from chronic exposure to lead.

Body Burden↗

Recent life events in school children: race, socioeconomic status, and cardiovascular risk factors. The Minneapolis Children's Blood Pressure Study.

During a study of children's blood pressure, recent life events were measured to determine their occurrence in elementary school children and to determine their relationship to blood pressure and other possible precursors of adult hypertension. Data about life events for a one-year period were obtained from a stratified sample of 1505, 6- to 9-year-old children enrolled in Minneapolis public schools. Children's age and sex were not related to life events. Parental education, employment, and income were related to the child's life event frequency. Indian and black children tended to experience significantly more undesirable life events than white children. Life events frequency was not related to baseline or to follow-up blood pressure or to obesity or other risk factors for adult hypertension.

Black People↗

Nicotine treatment at the Drug Dependency Program of the Minneapolis VA Medical Center. A program director's perspective.

Nicotine addiction treatment has been integrated with inpatient chemical dependency treatment in the Drug Dependency Treatment program (DDTP) of the Minneapolis VA Medical Center since June 1988. The process of addressing this "new" drug (nicotine) is described. It has required significant changes in staff awareness and attitudes and several years to melt denial of nicotine addiction and develop new habits that address nicotine in therapeutic interactions with patients. Nicotine recovery has gradually been incorporated into all educational and therapeutic activities as well as the traditional recovery tools. Six weeks postdischarge 58% of patients who were smokers upon admission were nicotine-free or had greatly reduced use, and 98% of these were abstinent from drugs/alcohol. Nicotine use produces frequent and intense addictive urges/cravings that are a central issue in treatment. We believe that including nicotine in chemical dependency treatment supports fuller freedom from addictive urges and abstinence from drugs/alcohol.

Adolescent↗

Ten years of prospective Clostridium difficile-associated disease surveillance and treatment at the Minneapolis VA Medical Center, 1982-1991.

OBJECTIVES: To understand the epidemiology, risks, and management of Clostridium difficile-associated disease (CDAD) and to establish and evaluate reliable methods of surveillance. DESIGN: Case finding was done by daily ward and laboratory rounds. The criteria for CDAD diagnosis were: at least four unformed stools per day for 2 days and a positive culture or cytotoxin for C difficile, or positive endoscopy or autopsy for pseudomembranes. SETTING: The surveillance covered all patients from 1982 through 1991 in the 820-bed Minneapolis Veterans Affairs Medical Center. PARTICIPANTS: The criteria were met by 908 patients. Medical service patients numbered 488; surgical patients, 420. Frequencies ranged from a high of 149 cases in 1982 to a low of 50 cases in 1989. RESULTS: Stool specimens were obtained on 898 (99%) of the 908 CDAD patients. Stools were culture-positive in 864 (96%) of 898, cytotoxin-positive in 569 (63%) of 898. Endoscopy was performed on 196 (22%) of the 908 patients, and 80 (41%) of 196 patients had pseudomembranes. Ten (1%) of the 908 patients were diagnosed by endoscopy without a stool specimen, or at autopsy. No treatment was needed for 135 (15%) of the 908 CDAD patients, and 19 (2%) of the 908 died before treatment was started. Oral metronidazole was the treatment for 632 (70%) of 908 patients (1% intolerance, 2% failure, 7% relapse) and oral vancomycin was given to 122 (13%) of 908 patients (1% intolerance, 1% failure, 10% relapse). Twelve patients had pseudomembranous colitis at autopsy, and it was the primary cause of death in 5 (0.6%) of 908. CONCLUSIONS: CDAD usually responds to oral metronidazole or vancomycin but is nonetheless responsible for a high morbidity and occasional mortality in patients even when the diagnosis and treatment are pursued aggressively.

Administration, Oral↗

Postural changes in blood pressure and pulse rate among black adolescents and white adolescents: the Minneapolis Children's Blood Pressure Study.

Because studies have suggested a possible relation between vascular responsiveness to postural changes and risk of subsequent myocardial infarction, the reactivity of blood pressure and pulse rate to change from supine to standing positions was examined in 158 black males, 144 black females, 342 white males, and 272 white females aged 14-16 years. The study was part of the Minneapolis Children's Blood Pressure Study and was conducted during October to December 1985. Two blood pressure readings and one pulse reading were taken after five minutes of supine rest, immediately upon standing, and five minutes after standing. After adjustment for body mass index, mean systolic blood pressure decreased, and fourth- and fifth-phase diastolic blood pressures and pulse rate increased from supine to standing positions in all race and sex groups. Black males had significantly larger changes in systolic pressure than did white males (-5.9 vs. -4.1 mmHg), and males had significantly larger changes in fourth- and fifth-phase diastolic pressures compared with females of the same race (fourth-phase diastolic pressure, 8.0 vs. 4.1 mmHg for blacks and 10.0 vs. 4.8 mmHg for whites). Fifth-phase diastolic pressure increased more than did fourth-phase diastolic pressure in all groups. No race or sex differences were seen for pulse changes. For all race-sex groups, decreases in systolic pressure were positively correlated with initial levels of supine systolic pressure, whereas increases in fourth- and fifth-phase diastolic pressures were negatively correlated with corresponding initial levels. Measurement of postural changes may provide a clinically simple and reproducible way of testing for abnormalities in blood pressure and may better discriminate those at high risk of hypertension and its cardiovascular complications than would the commonly used single-seated blood pressure measurement.

Adolescent↗

Change in survival from out-of-hospital cardiac arrest and its effect on coronary heart disease mortality, Minneapolis-St. Paul. The Minnesota Heart Survey.

Emergency medical services with advanced life support systems were implemented in the Minneapolis-St. Paul, Minnesota, area in the mid-1970s. To assess the impact of emergency medical services on coronary heart disease mortality, the authors reviewed ambulance records and hospital emergency room logs for possible out-of-hospital cardiac arrest cases in the period 1972-1982. Potential cases, and their survival to discharge, were validated by hospital record review and were checked against Minnesota death certificates for the year of cardiac arrest and the year following cardiac arrest. Age-adjusted rates of survival to 1 year after cardiac arrest (per 100,000 population) for survivors of out-of-hospital cardiac arrest aged 30-74 years increased significantly from 1972 to 1982 for men (1.8 vs. 11.7; p less than 0.00001) and for women (0.5 vs. 3.5; p less than 0.01). Coronary heart disease mortality rates declined in that period by 34.9% for men (from 527.5 per 100,000 to 343.3 per 100,000) and by 41.7% for women (from 168.6 per 100,000 to 98.3 per 100,000). The authors estimate that improved survival from out-of-hospital cardiac arrest contributed 5.4% (9.9 of 184.2) of the mortality decline for men and 4.3% (3.0 of 70.3) of the decline for women. This was a significant contribution to the decline in coronary heart disease mortality, but it explains only a small part of it.

Adult↗