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Biomedical subjects

D M Kutvirt

Publications and source records attributed to D M Kutvirt.

8 recordsLinked to original sources
PubMed1987

Cigarette use among Hispanic and non-Hispanic white school children, Albuquerque, New Mexico.

We conducted a survey of cigarette usage among Hispanic and non-Hispanic White school children in Albuquerque, New Mexico. The distributions of current, experimental, and never smokers were similar in the two groups. Among smokers, the average weekly cigarette consumption was 19 for Hispanic White males, 14 for non-Hispanic White males, 16 for non-Hispanic White females, and nine for Hispanic White females. Educational programs are needed to maintain the low-risk status of Southwestern Hispanics for cigarette-related diseases.

Adolescent↗
PubMed1985

Cystosarcoma phyllodes: epidemiology, pathohistology, pathobiology, diagnosis, therapy, and survival.

Cystosarcoma phyllodes is a very rare tumor which maybe difficult to diagnose clinically. The epidemiology and pathobiology are different from those of breast carcinoma. Risk factors, multicentricity, bilaterality, as associated with breast carcinoma, are not observed in patients with cystosarcoma phyllodes. Although the term "sarcoma" indicates a malignant tumor, only 10%-30% of cystosarcomas are histologically diagnosed as malignant; clinical diagnosis of malignancy does not exceed 10%. Axillary node involvement is rare, but hematogenous spread of cystosarcoma occurs into lung, pleura, bone, and liver. Clinically, cystosarcoma is a large (usually 3-5 cm in diameter) painless tumor with sudden growth acceleration especially during pregnancy. Cystosarcoma is usually circumscribed, containing firm and soft areas. The differential diagnosis has to include fibroadenoma, fibrocystic disease, mastitis, abscess, and medullary carcinoma. Neither clinical, mammographic or sonographic signs exist to predict a benign or malignant tumor. Therapy of cystosarcoma is not uniformly agreed upon. Radical, modified-radical, and simple mastectomy and tumorectomy are typical treatments; therapeutic results are the same for each treatment modality. For histologically diagnosed malignant cystosarcoma, the relative 5-year survival rate is about 80%. Clinically, malignant metastatic cystosarcoma is incurable; radiotherapy, endocrine treatment, and polychemotherapy are all ineffective. Because of the specific tumor pathobiology of cystosarcoma and its rarity, evaluation of treatment modalities and comparison of survival rates are difficult.

Breast Neoplasms↗
PubMed1984

Uranium mining and lung cancer in Navajo men.

We performed a population-based case-control study to examine the association between uranium mining and lung cancer in Navajo men, a predominantly nonsmoking population. The 32 cases included all those occurring among Navajo men between 1969 and 1982, as ascertained by the New Mexico Tumor Registry. For each case in a Navajo man, two controls with nonrespiratory cancer were selected. Of the 32 Navajo patients, 72 per cent had been employed as uranium miners, whereas no controls had documented experience in this industry. The lower 95 per cent confidence limit for the relative risk of lung cancer associated with uranium mining was 14.4. Information on cigarette smoking was available for 21 of the 23 affected uranium miners; eight were nonsmokers and median consumption by the remainder was one to three cigarettes daily. These results demonstrate that in a rural nonsmoking population most of the lung cancer may be attributable to one hazardous occupation.

Adult↗
PubMed1983

A tracking system for conducting epidemiological case-control studies.

The automated-respondent tracking system (ARTS) is an event-driven management system developed to monitor data collection during large epidemiological case-control studies. ARTS facilitates the conduct and management of these studies by eliminating the problems and limitations of manually monitoring subjects. This system, developed on an IBM 3032, consists of a series of programs linked by a general update program. Data captured on each subject for every study phase are used to generate lists of subjects requiring further action by the study staff. Additionally, ARTS produces reports reflecting a study's progress. Improved study management and reduced clerical load justify the system's costs. Concepts and programming principles applied to ARTS can be generalized to other epidemiological study designs.

Computers↗
PubMed1980

Respiratory disease mortality in New Mexico's American Indians and Hispanics.

To determine the effect of ethnic group on respiratory disease occurrence, average annual sex, ethnic, and disease specific mortality rates for the period of 1969 to 1977 were calculated for New Mexico's American Indian, Hispanic, and Anglo populations. Incidence data were available for respiratory tract cancer. This study corroborates previous findings of reduced mortality from lung cancer in American Indians of both sexes and in Hispanic males. American Indian mortality from tuberculosis and from influenza and pneumonia was high. Hispanic males and American Indians of both sexes showed low mortality rates for chronic obstructive pulmonary disease (COPD). Differing cigarette usage is the most obvious explanation for the variations in COPD and lung cancer occurrence with ethnic group.

Adolescent↗
PubMed1977

Multiple primary cancers: relative risk in New Mexico's triethnic population.

A review of the population-based New Mexico Tumor Registry data identified 446 patients with nonsimultaneous multiple primary cancers, excluding non-melanoma skin cancers and carcinomas in situ of the uterine cervix. Expected numbers of cases were established by observing the person-years of exposure to the risk of developing a second or subsequent primary cancer and then applying the appropriate locally determined age-, sex-, ethnic-, and site-specific cancer incidence rates. The relative risk (observed/expected) of developing a second primary cancer was elevated for "Anglo" and Spanish American cancer patients in comparison with the risk of developing a first primary cancer in persons who have never had one. Only six cases of nonsimultaneous multiple primary cancer were observed (6.39 expected) in the region's American Indian population. There were differences in site-site associations among the three ethnic groups, but in many categories there were too few cases for analysis.

Ethnicity↗