Regionalization of newborn care in Louisiana: attitudes of Louisiana physicians.
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Attitude of Health Personnel↗
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Statewide physician manpower planning in Louisiana: Louisiana's shortage of primary care physicians.
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Forecasting↗
Statewide physician manpower planning in Louisiana: primary care residency positions in Louisiana.
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Education, Medical↗
Relationship between respiratory cancer and wetlands residency in Louisiana.
Cancer mortality is high among white men residing in southern Louisiana parishes (counties). In an effort to elucidate this phenomenon, we studied three environmental correlates of cancer-namely, smoking, residence in urban communities, and residence in the wetlands. Multiple regression analysis was applied to cancer mortalities adjusted for age and urban residency, and specific for race, sex, amount of standing water area in the parish, and cancer site. Cancer sites were grouped according to their correlation with smoking: strong, moderate, and no correlation. For men, the smoking-related cancer mortality not only showed an association with residence in wetlands but also was higher in the Louisiana wetlands than in the remainder of the United States.
Bronchial Neoplasms↗
Lung cancer in shipbuilding and related industries in Louisiana.
The relationship between shipbuilding and related industries and risk of fatal lung cancer (1960-1975) is described for selected Louisiana parishes. Deaths from lung cancer were matched to deaths not caused by cancer. Shipbuilders had a significantly increased risk (greater than twofold) of dying of lung cancer as compared with other causes. The risk of dying of lung cancer in related occupations (seamen and longshoremen) was also increased. Information on laterality of lung cancer was not supportive of particulate substances contributing to causality due to the large number of unspecified cases. The preponderance of deaths appears to be occurring in men with a greater number of years of exposure to this industry and in those aged 20 to 34 years in 1940. These common occupations in Louisiana could contribute to the high rate of lung cancer.
Adolescent↗
Dental health of Louisiana residents based on the ten-state nutrition survey.
The dental health status of 4,006 residents of Louisiana was analyzed, based on data in the 1968-70 Ten-State Nutrition Survey funded by the U.S. Government. These data were based on examinations of census districts in which the average per capita income was in the lowest quartile for the nation. A considerable variation in the prevalence of dental diseases was found among the Louisiana residents according to age. The females examined had a slightly higher DMF (decayed, missing, and filled permanent teeth) score, a lower OHI (oral hygiene index) score, and a slightly lower PI (periodontal index) score than did the males. The dental caries attack rate did not vary much by race, but the whites examined had received a much greater amount of dental care than had their black counterparts. The OHI scores of the blacks were higher than those for the whites in both the debris and calculus components. The PI scores were higher for the blacks than for the whites. More white persons than blacks were edentulous; this result, however, tends to confirm the observation of increased dental care in white persons. The percentages of persons with periodontal disease and periodontal pockets were considerably higher among persons with incomes below the poverty level, and a greater percentage of blacks had incomes below that level. The data thus apparently indicate that the major determinants of dental health status in Lousiana are age and level of income; race appears to be the major determinant of the amount of dental care received.
Adolescent↗
Effects of chronic ingestion of south Louisiana crude oil on mallard ducklings.
South Louisiana crude oil was fed to duckling mallards (Anas platyrhynchos) in concentrations of 0.025, 0.25, 2.5, and 5.0% of the diet from hatching to 8 weeks of age to assess the effects of chronic oil ingestion during early development. Growth was depressed in birds receiving a diet containing 5% oil but there was no oil-related mortality. Diets containing 0.25, 2.5, and 5.0% oil impaired avoidance behavior of 6-day-old mallard ducklings when compared with controls or ducklings fed 0.025% oil, but had no effect on open-field behavior of 7-day-old ducklings. Liver hypertrophy and splenic atrophy were gross evidence of the pathological effects of oil in birds on the 2.5 and 5.0% oil diets. Biochemical lesions that occurred included elevation of plasma alanine aminotransferase and ornithine carbamyl transferase activity. Hepatocyte hypertrophy and bile duct proliferation in the liver were noted in birds fed the 2.5 and 5.0% oil diets and tubular inflammation and degeneration in the kidney were noted in birds fed the 5.0% oil diet.
Animals↗
Notes on the history of leprosy in Louisiana.
In the late 1880s it became apparent in Louisiana that leprosy was endemic in the southern part of the state. Initially, the intention was to establish a leprosy hospital in the city of New Orleans, close to medical facilities, and where the bulk of the patients were to be found. The establishment, instead, of an isolated leper colony at the run-down plantation at Carville, 85 miles up-river, was the result of community indifference, misunderstanding of the nature of the disease, and expected depreciation of property values. Fear of the disease was a secondary matter. The practice of locating residential facilities for the chronically ill at long distances from the centers of physician practice and medical research continues to this day. Interestingly, the arguments that permit this to happen have not changed appreciably from those of a century ago.
History, 19th Century↗
Elimination of bagassosis in Louisiana paper manufacturing plant workers.
The prevalence of bagassosis was investigated in a Louisiana paper mill, which in the past had considerable numbers of workers with the disease. Based on negative clinical histories and the low number of positive serological reactions of the workers' serum with Thermoactinomyces sacchari antigen, it was concluded that bagassosis was no longer present. This was thought to be due to a different method of storage of bagasse, which retards microbial decay and reduces airborne organic dust, and to the increased awareness of plant management resulting in greater safety measures.
Dust↗
Drinking water and cancer mortality in Louisiana.
Multivariant regression analysis indicates a statistically significant relation between cancer mortality rates in Louisiana and drinking water obtained from the Missippi River. This is true for total cancer, cancer of the urinary organs, and cancer of the gastrointestinal tract.
Breast Neoplasms↗
Mesocercaria in the skin of man in Louisiana.
Two areas of intradermal swelling removed from the upper thigh and iliac crest of a 43-year-old man in Louisiana were each found to contain a larval trematode about 0.5 mm in length. Based on morphology reconstructed from serial sections, the two worms were identified as a mesocercaria of an undescribed species belonging to the subfamily Alariinae.
Adult↗
Spontaneous renal disease in Louisiana armadillos (Dasypus novemcinctus).
Renal lesions were present in 34 (68%) of 50 armadillos (Dasypus novemcinctus) collected for a survey of the prevalence of leptospires in Louisiana wildlife. The renal lesions were not associated with elevations in the renal function tests of blood urea nitrogen or serum creatinine or with consistent serologic or cultural evidence of leptospires.
Animals↗
Chronic dermatitis in nutria in Louisiana.
Chronic dermatitis in nutria (Myocastor coypus) in Louisiana was traced to secondary bacterial and fungal infection resulting from the penetration of achene awns of smooth beggartick (Bidens laevis) into the skin.
Animals↗
Crop impactions in bobwhite quail in Louisiana.
Crop impactions (solid, hard masses of seeds) caused by seeds of clammy weed (Cuphea carthagenensis) were found in bobwhite quail (Colinus virginianus) killed during the 1965-71 hunting seasons in Louisiana. Emaciation and weakened condition were associated with the presence of crop impactions in two quail, suggesting that physical obstruction of the crop by impactions may be of significant pathologic consequence.
Animals↗
Serologic survey for equine infectious anemia virus in Louisiana.
In 1975, a survey was conducted in East Baton Rouge Parish, Louisiana, to determine the prevalence of equine infectious anemia. Using the agar gel immunodiffusion test, 94 of 1,398 horses (6.7%) were found to be infected. Infection rates were especially high in areas where clinical cases of equine infectious anemia had been diagnosed. Clinical signs compatible with the disease were noted in 1 of the 94 seropositive horses. The sample set of 1,398 horses represented 22% of the census population obtained during the 1971 Venezuelan equine encephalomyelitis vaccination campaign.
Animals↗
Lung cancer in Louisiana: death certificate analysis.
In a search for etiologic clues, a review was made of death certificates of residents in a cluster of Louisiana parishes, mainly in the southern part of the state, where lung cancer mortality was high. A comparison of the statements on occupation for 3,327 patients with lung cancer and those of 3,327 controls (matched by sex, race, age, and parish of residence) during 1960-75 revealed an approximately twofold excess risk associated with transportation equipment manufacture, mainly shipbuilding, and the fishing industry. Smaller elevations of lung cancer risk were found among older men who had been employed in petroleum exploration and production and among male and female residents of towns where the petroleum industry was a major employer. In addition, Acadian ancestry was associated with a higher risk of lung cancer among older male and female residents.
Death Certificates↗
Development of a health and safety program at the Louisiana State University School of Veterinary Medicine.
An accident prevention and zoonotic disease control program at the School of Veterinary Medicine, Louisiana State University, was developed by a Health and Safety Committee comprised of members from all instructional departments. The program incorporated safety educational input during the basic, preclinical, and clinical years; a standardized accident reporting procedure; rabies vaccination, with serologic evaluation; a blood serum bank; and recommendations for future control procedures.
Accident Prevention↗
Capillaria hepatica infection in coyotes of Louisiana.
Capillaria hepatica infection was diagnosed by histologic examination in 21 of 71 (30%) coyotes in Louisiana. All infected coyotes were at least 1 year old, and most (19 of 21) were more than 2 year years old. Capillaria hepatica was not found in any livers from 31 red foxes and 20 gray foxes examined.
Animals↗