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Biomedical subjects

O Razum

Publications and source records attributed to O Razum.

At least 19 recordsLinked to original sources
PubMed2006

[Epidemiological research on migrant health in Germany. An overview].

In recent years, Germany has become an important immigration country. Health services in Germany thus have to face the needs of a growing migrant population. The health of migrants is affected by the process of migration in various--positive as well as negative--ways. Epidemiological research can help to reveal health inequalities between migrants and the majority population as well as to identify causes of disease. Standard epidemiological study designs may have to be adapted for migrant health research so they can be employed in migrant studies. While a large number of descriptive studies on migrant health have been conducted in Germany based on routinely available data sources, analytical migrant studies are still scarce. This paper presents an overview of methods and findings of epidemiological studies related to migrants in Germany. It also describes needs and challenges for future research.

Adolescent↗
PubMed2006

[A basic set of indicators for mapping migrant status. Recommendations for epidemiological practice].

Data on the health status of migrants are still scarce. One of the reasons for this is that migration status has not been well recorded in official statistics and epidemiological studies. In order to obtain an adequate and standardised operationalisation of migrant status, we first need an exact definition of the terms "migrant" and "migration background". We discuss approaches to the definition of terms and the surveying of ethnic minorities and migrants, and then develop a basic set of migration status indicators for use in epidemiological research. This set of indicators includes country of birth of the father and mother, year of immigration, mother tongue, German language skills and status of residence. The key indicator for the identification of migrants is the country of birth of the parents and not the nationality as was previously often the case. Thus, the classification based on the judicial category of nationality is replaced by a classification based on the biographical event "migration". Migration brings with it specific life conditions and challenges that can impact health across several generations. An instrument for surveying migrant status must be further developed both to reflect the special conditions of the life situation resulting from the migration experience and to take as full account as possible of all aspects of a migrant's history.

Algorithms↗
PubMed2006

[Name-based identification of cases of Turkish origin in the childhood cancer registry in Mainz].

Until now few analyses of routine data relating to the health of migrants have been conducted in Germany. A major obstacle is that most data sources do not provide reliable information on the origin of migrants. While some sources contain the nationality of persons registered, this information does not allow one to identify migrants who have taken up German citizenship, i.e., a substantial part of second-generation migrants. In this paper we demonstrate how a computer-aided, name-based algorithm can be used to identify persons of Turkish origin in the German Childhood Cancer Registry in Mainz, Germany. The performance of the algorithm, as assessed against the gold standard of assessing names manually, was very good (sensitivity and specificity > or = 0.975). In total, we identified 1774 of the 37,259 cases in the registry as being of Turkish origin. The name algorithm proved to be a useful tool to identify Turkish migrants in routine data sources, thus avoiding potential bias due to changes in citizenship. This approach aims at improving migrant-sensitive health reporting and research in Germany. In future, additional information on migrant status should be obtained already during primary data collection so that health data for all migrant groups can be provided.

Algorithms↗
PubMed2005

'Have a Pap smear!'--doctors, their clients, and opportunistic cervical cancer screening.

In many middle-income countries with a high incidence of cervical cancer, organized screening programmes with the Pap test are being planned. We assessed the knowledge of, and attitudes towards, cervical screening among 63 doctors and 102 randomly selected community members in Trinidad where screening is still opportunistic. Doctors were well informed about cervical cancer, but not all knew the approximate specificity of the Pap test. Many did not routinely discuss the benefits and disadvantages of screening with their clients. Most women had heard of the Pap test, but only 56% knew its purpose; 25% would not participate in screening, stating reasons such as being in menopause or not having symptoms. More information about the aim of screening and the purpose of the Pap test must be communicated. Doctors need to keep their knowledge on screening up-to-date, and offer counselling that helps women to make an informed decision whether or not to participate in screening.

Adult↗
PubMed2004

[Suicide mortality among Turks in Germany].

BACKGROUND: Suicide mortality is usually higher among men than among women. In socially disadvantaged groups, this relationship can be reversed. We investigated whether this is the case among Turkish migrants in Germany. MATERIAL AND METHODS: We calculated age- and sex-specific suicide rates for Turkish nationals residing in (West) Germany (1186 suicides) and for Germans aged below 65 years based on death registration data covering the period 1980-1997. RESULTS: Age-adjusted suicide rates among Turks were lower than among Germans (relative risk 0.3). Among Turkish girls and young women under 18 years, however, the relative risk compared to Germans was 1.8 (95% confidence interval 1.4-2.3). The male-to-female ratio in this age group was 3.2 among Germans and 0.6 among Turks. DISCUSSION: Overall, Turks living in Germany have a lower suicide mortality than Germans. Possible explanations include a high level of social coherence in the Turkish community and religious prohibitions. The high suicide rate among Turkish girls and young women could indicate the presence of social or cultural conflict situations.

Adolescent↗
PubMed2004

[Breast cancer among Turkish women in Germany - epidemiology and research agenda].

Breast cancer is the leading cause of cancer death and morbidity among women worldwide. In Germany an estimated 46,000 women are diagnosed with breast cancer every year, and 18,000 die of the disease. So far, limited information is available on possible epidemiological and clinical differences between women of German origin and other ethnic or national groups in Germany. Such differences between migrants and the general population could hint to underlying causes of disease and to differential access to medical care. In this paper we present epidemiological information on breast cancer among Turkish women in Germany and describe a future research agenda addressing these questions.

Breast Neoplasms↗
PubMed2004

Cigarette smoking among school teachers in Tobago.

Tobago, until lately, was considered a society with a low prevalence of cigarette smoking. Recent surveys, however, showed an increasing smoking prevalence among school children. To assess whether teachers in Tobago can be credible role models for their pupils, we carried out a cross-sectional survey on their smoking-related attitudes and behaviour in 2002. We distributed anonymous, structured questionnaires to teachers of all 52 primary and secondary schools in the island and conducted structured observations in schools. Of 579 teachers present during the survey, 559 (97%) returned a completed questionnaire; 8.6% of the male and 2.4% of the female teachers reported to be current cigarette smokers; slightly higher proportions had ever been daily smokers. Teachers were well aware of the harmful effects of smoking. Significantly more non-smokers than current smokers were in favour of strict school smoking regulations. The vast majority of the teachers perceived anti-smoking education as their duty. None of the schools had dedicated smoking rooms for teachers, and we found no cigarette butts in or around teachers' rooms. In Tobago, teachers have a lower reported prevalence of cigarette smoking than their pupils. Thus, most teachers can be credible role models with regard to smoking prevention and should be encouraged to become more active in school-based preventive activities.

Adolescent↗
PubMed2002

Transition in cancer patterns among Turks residing in Germany.

Cancer mortality among the 2.1 million Turks residing in Germany is assumed to change from a pattern typical for a developing country towards one of an industrialised country. To test this hypothesis, we compared age-standardised cancer mortality rates among Turkish residents and (West) Germans using death registration data. In addition, we assessed proportional cancer incidence ratios among Turkish cases (n=144) in a German population-based cancer registry. All-cancer mortality 1992-1997 (per 100000) was 34.8 (n=4192) among Turkish men (Germans: 72.3) and 21.5 (n=1862) among Turkish women (Germans: 52.4). Over time, gastric and lung cancer mortality increased among Turkish men, as did breast cancer mortality among Turkish women. The proportional cancer incidence (PCIR) for stomach cancer among men was 2.9 (95% Confidence Interval (CI): 1.7-4.8), and that for breast cancer among women was 0.7 (95% CI: 0.4-1.1). Turks had an increased proportional incidence ratio for non-Hodgkin's lymphoma. Our findings partly support a transition of cancer patterns among Turks in Germany.

Adolescent↗
PubMed2002

[The healthy migrant effect: role of selection and late entry bias].

BACKGROUND: First-generation immigrants frequently have a lower mortality than the host population, in spite of a low socio-economic status. This is usually explained by (self-) selection into migration. If this were the case, the immigrants' mortality risk would increase with time under observation. A persistently low mortality could be due to a late entry bias: if migrants are enrolled in a study years after immigration, sick or socio-economically unsuccessful individuals may already have returned to their countries of origin. Mortality risk would then be inversely associated with length of stay in the host country before enrollment. METHODS: We assessed the mortality risk of immigrants from Mediterranean countries to Germany in the German Socio-economic Panel, in relation to time under observation (1-15 years) and length of stay in Germany before enrollment (0-34 years), using the Cox regression. RESULTS: In 1984-98, 2624 immigrants aged 16-83 years accrued 21,858 person years; 59 died. The hazard ratio, adjusted for age, sex and marital status, for each additional year under observation was 0.93 (95 % CI: 0.87-0.99); and for each additional 10 years in Germany before enrollment 0.49 (95 % CI: 0.27-0.89) in the age group >/= 50 years. CONCLUSIONS: We found no evidence for a mortality increase with time under observation, suggesting that the healthy migrant effect is not primarily due to (self-)selection. The initial mortality advantage could be due to international differences in mortality patterns. A late entry bias does contribute to the persisting mortality advantage of older immigrants.

Adolescent↗
PubMed2002

Drug use and HIV risk in Trinidad and Tobago: qualitative study.

Crack use is an important risk factor for HIV infection because of its association with unsafe sexual practices. We investigated factors promoting the initiation of crack cocaine use; the sexual behaviour of crack users; and their rehabilitation care seeking behaviour in Trinidad and Tobago. We conducted 40 in-depth interviews with drug users. Respondents frequently reported a history of parental desertion, alcohol abuse, and physical abuse within the family. They perceived peer pressure and drug use in the family as important factors promoting first drug use. Exchanging sex for drugs was common, and practising oral sex was considered safe. Female drug users rarely seek rehabilitative care because of stigmatization and lack of care for their children. In Trinidad, attitudes towards drugs in society and families need to be changed. Campaigns promoting safer sex should emphasize the risk of oral sex. Rehabilitation facilities caring for female drug users should offer child care.

Adult↗
PubMed2001

How useful is a name-based algorithm in health research among Turkish migrants in Germany?

Migrants often face particular social, economic and health disadvantages relative to the population of the host country. In order to adapt health services to the needs of migrants, health researchers need to identify differences in risk factor and disease profiles, as well as inequalities concerning treatment and prevention. Registries of health-related events could be employed for these purposes. In Germany, however, routine data bases often hold no, or inaccurate, information on the national origin of the cases registered. We developed an algorithm based on a large data set of Turkish family and first names (n=15 000), with religion as additional criterion, to identify cases of Turkish origin in registries in a largely automatic search. We tested the performance of the algorithm in a population registry and in a cancer registry. The algorithm discriminates well against Greek and Arab names, with 1% false positive matches in our study. It achieves a specificity of > 99.9% in delimiting Turkish from German cases in the cancer registry. The sensitivity can be increased to 85%, provided the small proportion of case records with uncertain origin can be assessed manually. The name algorithm can be useful for registry-based health research among Turkish migrants in Germany. Possible applications are e.g. in cancer registries to compare survival among German and Turkish cancer patients, or in health insurance registries to compare the relative importance of work-related degenerative diseases. In specific circumstances, the algorithm may also be useful in aetiological research.

Algorithms↗
PubMed2001

Meningitis propagation in southern Tanzania: the role of a village video show.

An outbreak of meningitis with 85 secondary cases and an unusually high attack rate of 16% occurred in a rural village in southern Tanzania. We investigated risk factors for clinical illness in a community-based case-control study. Attending a commercial mobile video show carried an age- and sex-adjusted odds ratio of 8.0 (95% confidence interval: 3.8-16.8). The videos had been shown in a windowless and overcrowded storeroom and had been attended by the primary case, a visitor from neighbouring Mozambique who died from meningitis on the following day. We conclude that mobile video shows, which have become popular in many developing countries, constitute a potential health hazard in areas prone to meningitis epidemics.

Adolescent↗