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PubMed2004

Multiple sclerosis in US veterans of the Vietnam era and later military service: race, sex, and geography.

We identified 5345 cases of multiple sclerosis (MS) among US veterans who first entered military service between 1960 and 1994, and who were "service-connected" for MS by the Department of Veterans Affairs (VA). Two controls per case were matched on age, date of service entry, and branch of service. Available for service and VA files were demographic and military data for 4951 cases and 9378 controls. Versus white men, relative risk of MS was significantly higher for all women, at 2.99 for whites, 2.86 for blacks, and 3.51 for those of other races. This was a significant increase from our prior series of veterans of World War II and the Korean Conflict, where white women had a relative risk of 1.79. Risk for black men was higher now (0.67 vs 0.44), while other men remained low (0.30 vs 0.22). Residence at service entry in the northern tier of states had a relative risk of 2.02 versus the southern tier, which was significantly less than the 2.64 for the earlier series. Residence by individual state at birth and service entry for white men further supported this decreasing geographic differential. Such marked changes in geography, sex, and race in such a short interval strongly imply a primary environmental factor in the cause or precipitation of this disease.

Case-Control Studies↗
PubMed1977

Geography in multiple sclerosis.

Both mortality and morbidity data indicate quite clearly that multiple sclerosis is a geographically-related disease, and thus MS can be thought of as an acquired environmental (exogenous) illness. High frequency parts of the world for MS are Europe between 65 degrees and 45 degrees north latitude, northern United States and southern Canada, New Zealand, and southern Australia. These regions are bounded by medium frequency MS regions: in Europe to the north, east, and south; in America for southern U.S.; and the remainder of Australia. Latin America, Asia and Africa are essentially of low frequency from present data. Latitude is not a sufficient criterion: at 40 degrees north latitude, MS is high in America, medium in Europe, and low in Asia. All high and medium risk areas therefore are in Europe or European colonies; thus MS is the white man's burden spread from western Europe. Within the U.S., MS is less common among Negroes, Japanese, and possibly Amerindians than in whites regardless of geography. Migration studies among risk areas indicate that migrants keep much of the risk of their birthplace, but also that overall the risk is decreased by high-to-low migration, and probably increased by low-to-high. For the former, it seems that adolescence is the age critical for retention of birthplace risk. Some preliminary data on a possible epidemic of MS are also presented. All the epidemiologic information would be most easily explained if MS were an infectious (viral) illness with prolonged latency. The proof of this though must come from the laboratory.

Australia↗
PubMed1995

Hidden geographies: the changing lifeworlds of women with multiple sclerosis.

This paper discusses the microgeographies of unemployed women with multiple sclerosis, as they manage the physical, social and economic consequences of their illness. Recent directions in the geography of health and health care draw attention to the relationships between space, place and health experience, and in this paper a focus on the everyday lives of women with Multiple Sclerosis reveals the complex interweaving of space, physical impairment and gender in how they experience place. In-depth interviews were used in the study to investigate how women occupied and used home and neighbourhood space after leaving the paid labour force. The majority of women were found to experience shrinking social and geographical worlds which rendered their lives increasingly hidden from view as patterns of social interaction changed and use of public space diminished. The paper discusses the women's residential and household changes, mediated by marital and socio-economic status, and presents two brief case studies to illustrate the remapping of the meanings of work and place as women renegotiate their lifeworlds. The focus of the study on the spatio-temporal settings of the women's everyday lives revealed an interplay of biomedical discourse, policy structures, sociocultural norms and local sets of social relations that shaped the strategies the women used in reconstructing their lives. The women showed a diversity of responses, but these were all characterized by a restructuring of home and neighbourhood space, a reordering of personal relationships and increasing interpenetration of the public sphere in their private lives. The findings suggest that attention to the body in its geographical as well as social context provides an avenue for investigating the links between subjective experience and the broader social relations and processes which shape the illness experience.

Activities of Daily Living↗
PubMed1996

Restructuring long-term care and the geography of ageing: a view from rural New Zealand.

This paper examines the major points of contact between the restructuring of long-term care and the evolving geography of the elderly in the Waikato, one of New Zealand's agricultural heartlands. The time frame of the study is 1981-91, a decade in which new Zealand embarked on a sweeping program of service restructuring and privatization. Comparative analysis of data on the evolving distribution of the elderly and on the shifting supply of long-term care beds reveals that restructuring has sharpened contrasts between urban and rural contexts for ageing. Almost all the urban centres in the Waikato benefited from an expansion of long-term care driven by private-sector initiatives, while rural communities suffered a broad-based depletion of services. However, the data indicate that, contrary to the trend in long-term care, more older elderly people (defined as those aged 80 or older) are "staying on' in rural communities. The paper concludes with a consideration of emergent policy issues; we speculate that it through the aggregate outcomes of decisions to "stay on' that the personal troubles of the elderly residents of service-depleted communities may yet become an important policy issue in rural New Zealand.

Aged↗
PubMed2006

What can geography tell us about prostate cancer?

One of the most striking characteristics of prostate cancer is the degree of geographic variation in its patterns of occurrence and progression; this variation is apparent at local, national, and international levels. Although geographic theory, methods, and data are increasingly utilized for public health research, epidemiologic research in prostate cancer etiology and progression has not taken full advantage of the spatial sciences as partner disciplines. This article reviews the known factors influencing the biology and epidemiology of prostate cancer and some of the ways in which findings to date have benefited from geography. A model is presented for geographically integrated research in prostate cancer, with discussion of how spatially referenced data and methods could enhance approaches to answering remaining questions in prostate cancer.

Demography↗
PubMed2005

Off the map: a critical geography of intellectual disabilities.

A "critical geography of intellectual disabilities" is outlined. Drawing on personal experience and borrowing poetic inspiration, claims about the end of the institutional era for intellectual disabled people are disputed, and the continuing eugenic legacy, complete with its multiple stigmatizing effects, is emphasized. The extent of the social exclusion experienced by many people with intellectual disabilities in the wider community, linked to various poor quality of life indicators, is also given attention. Finally, speculations are raised about how to move beyond the "asylum" and the "ghetto", empowering intellectually disabled people in the process.

Deinstitutionalization↗
PubMed2006

Hospitalization for respiratory syncytial virus among California infants: disparities related to race, insurance, and geography.

OBJECTIVES: To evaluate population-based rates of Respiratory Syncytial Virus (RSV)-associated infant hospitalizations related to race/ethnicity, payer source, and geography in California. STUDY DESIGN: Retrospective analysis of RSV-coded infant hospitalizations were performed using the California patient discharge data for 1999 to 2003. All discharge records for infants younger than 1 year of age with an ICD-9-CM code for any RSV-related illness (466.11, 480.1, or 079.6) among any of the diagnosis fields were selected for analysis (n = 45,330). Rates were expressed as the number of RSV-associated hospitalizations per 1000 live births in the same calendar year. RESULTS: Infants enrolled in MediCal (California's version of the United States' national Medicaid program) had a relative risk of 2.03 (95% CI, 1.99 to 2.06) compared with non-MediCal payers (24.3 vs 12.0/1000 live births, respectively). The 1999 to 2003 rates per 1000 live births of RSV-associated hospitalizations for MediCal payers by race/ethnicity were: non-Hispanic white (34.9), African-American (27.9), Hispanic (21.8), Asian/Pacific Islander (12.5), and American Indian/Alaska Native (12.2). CONCLUSIONS: RSV was the leading cause of infant hospitalizations in California between 1999 and 2003. RSV hospitalization rates were highest among non-Hispanic white MediCal insured infants.

California↗
PubMed2006

Geography and cough aetiology.

Cough is the most common complaint that leads patients to seek medical attention. Especially chronic persistent cough is annoying, and requires appropriate diagnosis and treatment. Recent cough guidelines and original papers on cough epidemiology from various countries show remarkable differences in the aetiology of chronic cough among countries, especially between US, UK and Japan. Entities associated with rhinosinus disease (post-nasal drip/upper airway cough syndrome reported from the US, rhinitis or rhinosinusitis from the UK, and sinobronchial syndrome from Japan), and eosinophilic lower airway disorders (cough variant asthma, non-asthmatic eosinophilic bronchitis and atopic cough) are most confusing and might involve significant overlap. In this article, issues related to chronic cough aetiology are discussed, including geographic issues, e.g. 'simple' geography or difference in race, and difference in patient characteristics possibly arising from difference in the medical system.

Chronic Disease↗
PubMed2005

Place, policy and practitioners: on rehabilitation, independence and the therapeutic landscape in the changing geography of care provision to older people in the UK.

A growing body of literature in geography and other social sciences considers the role of place in the provision of healthcare with particular interests emerging around the role of the psychological, social and cultural aspects of place in care provision. As healthcare stretches increasingly beyond the traditional four walls of the hospital, so questions of the role of place in practices of care become ever more pertinent. In this paper, we examine the relationship between place and practice in the care and rehabilitation of older people across a range of settings, using qualitative material obtained from interviews and focus groups with nursing, care and rehabilitation staff working in hospitals, clients' homes and other sites in England. By analysing their testimony on the characteristics of different settings, the aspects of place which facilitate or inhibit rehabilitation and the ways in which place mediates and is mediated by social interaction, we consider how various dimensions of place relate to the power-inscribed relationships between service users, informal carers and professionals as they negotiate the goals of the rehabilitation process. We seek to demonstrate how the physical, psychological and social meanings of place and the social processes engendered by the rehabilitation encounter interact to produce landscapes that are more or less therapeutic, considering in particular the structuring role of state policy and formal healthcare provision in this dynamic.

Aged↗
PubMed2006

Exploring the altered daily geographies and lifeworlds of women living with fibromyalgia syndrome: a mixed-method approach.

In this paper I employ data triangulation in order to investigate the complex nature of the altered lifeworlds and daily geographies of women living with fibromyalgia syndrome (FMS). More specifically, I use the findings of in-depth interviews and a standardized test (the Sickness Impact Profile [SIP]) in a mixed-method approach to understanding how women's lives change after the onset of FMS and how their changing bodies and locations in society and space shape such altered lifeworlds. These data were collected from 55 women living with FMS in Ontario, Canada. The experiential evidence shared during the interviews is used to qualify or explain certain phenomena observed within the SIP dataset. I focus on four specific experiences in the women's lives; these are the: (1) onset of mental haziness and fatigue; (2) development of disrupted sleep/sleep disorders; (3) removal from paid labour; and (4) withdrawal from social and recreational activities. It is found that changes in the women's bodies precipitated some of the most significant life changes experienced, including altered identities and diminished incomes, and that altered bodily realities facilitated or denied access to socio-spatial life. At the same time, the women's changing locations in society and space also played a role in bringing about such changes.

Cost of Illness↗
PubMed2001

African diversity from the HLA point of view: influence of genetic drift, geography, linguistics, and natural selection.

This study investigates the influence of different evolutionary factors on the patterns of human leukocyte antigen (HLA) genetic diversity within sub-Saharan Africa, and between Africa, Europe, and East Asia. This is done by comparing the significance of several statistics computed on equivalent population data sets tested for two HLA class II loci, DRB1 and DPB1, which strongly differ from each other by the shape of their allelic distributions. Similar results are found for the two loci concerning highly significant correlations between geographic and genetic distances at the world scale, high levels of genetic diversity within sub-Saharan Africa and East Asia, and low within Europe, and low genetic differentiations among the three broad continental areas, with no special divergence of Africa. On the other hand, DPB1 behaves as a neutral polymorphism, although a significant excess of heterozygotes is often observed for DRB1. Whereas the pattern observed for DPB1 is explained by geographic differentiations and genetic drift in isolated populations, balancing selection is likely to have prevented genetic differentiations among populations at the DRB1 locus. However, this selective effect did not disrupt the high correlation found between DRB1 and geography at the world scale, nor between DRB1 and linguistic differentiations at the African level.

Africa South of the Sahara↗
PubMed2000

The geography of survival after surgery for colo-rectal cancer in southern England.

This study investigates variations in survival following surgery for colo-rectal cancer in the Wessex region (part of southern England), using 5147 cases diagnosed between 1 September 1991 and 31 August 1995. Survival curve estimation by life tables and Cox's proportional hazards model were used to examine geographical variation in cancer survival, with a specific focus on distance between place of residence and treatment centre, and district of treatment. We also consider whether area deprivation has an impact on survival. In seeking to answer these questions we control for possible confounders, including: age, gender, site of tumour, stage of disease at operation, hospital size and surgery type (whether elective or non-elective). District of treatment, distance and deprivation all show a relationship to outcome using survival curves, but when adjusting for other covariates using the Cox model, and considering deaths from all causes, only district of treatment was a very significant covariate (p < 0.0001). Distance, deprivation, and gender were only weakly significant (p < 0.10). Considering only deaths related to operation (within 30 days) district of treatment remained significant, but while distance had some effect on outcome, deprivation and gender ceased to be significant covariates. There is some evidence that those who live furthest from centres of treatment have the worst outcomes but the 'geography of survival' manifests itself more through where patients are treated than through area (deprivation) effects or relative location. The results have important policy implications, as they show variations among treatment centres having controlled for potentially confounding factors.

Colorectal Neoplasms↗
PubMed2000

Gender, poverty and location: how much difference do they make in the geography of health inequalities?

It is often said that women live longer than men, but suffer more illnesses throughout their lives. It has also been demonstrated in various studies of women's health that measures of health and health behaviour vary over different geographic scales. Added into this mix is the fact that historically more women than men in relative terms are found on the lower rungs of the socio-economic ladder. What has not been so well-developed is our understanding of the connections among health, gender, poverty and especially location. In 1998, Statistics Canada released the second wave of the National Population Health Survey (NPHS-2). Included with the NPHS-2 public use microdata file are measures of health status, gender, income and location which can be analyzed in the form of logistic regression models. Results are reported which provide a better understanding of the relative roles that gender, poverty and location play in the geography of inequalities.

Adult↗
PubMed2000

Interpreting the 'hidden social geographies' of mental health: ethnographies of inclusion and exclusion in semi-institutional places.

This paper critically evaluates, through use of covert ethnographic materials, an inner-city drop-in as a semi-institutional place where the identities of people with mental health problems are influenced by social processes of inclusion and exclusion. It is demonstrated, through an in-depth interpretative approach, that it is possible to understand more about the micro-geographies which make up deinstitutionalized landscapes, and about the social relations which characterise these. Key to this paper are findings which indicate that people with mental health problems cannot be understood as a straightforwardly homogeneous 'excluded' grouping, and that mainstream processes of boundary maintenance are in operation among these constructed 'others'.

Anthropology, Cultural↗
PubMed2003

Placing the consumption of private complementary medicine: everyday geographies of older peoples' use.

Using a combined questionnaire and interview survey of older users of complementary medicine, an interpretative framework is developed to examine their consumer behaviour. Collectively, three inter-related levels of interpretation provide a detailed description of complementary medicine as a consumer experience very much associated with particular places and settings. First, structural features of two local private sectors are investigated, including the different organisational modes and local cultures of provision. Second, experiential features are investigated, including how treatment impacts on older users' use of space and on their personal mobility. Third, conceptual features are investigated, including how older users articulate the belief systems associated with complementary medicine. Overlying these levels are a wide-variety of therapeutic settings that make up the total therapeutic experience. These range in scale from the micro-level of clinics and users' homes to the macro-level of towns. The paper unravels the complex, individualized, dispersed and everyday consumer geographies associated with these emerging forms of health care, highlights the intimate dynamics that exist between places and care and showcases how these may be effectively mapped by using qualitative methods and a critical theoretical framework.

Aged↗
PubMed2001

Clostridium difficile infection, hospital geography and time-space clustering.

To analyse spatial and temporal relationships of Clostridium difficile-associated disease in an inner-city hospital, we retrospectively evaluated 283 episodes of confirmed C. difficile diarrhoea in the Chelsea and Westminster Hospital between 1995 and 1998, against a background of relatively stable case mix, antibiotic usage and admission numbers, using Knox analysis to determine the presence of disease clustering in time and space. We found five time-space clusters on four medical wards and between two adjacent units. The clusters were not related to the overall case number on single wards, and were separated in time. Knox time-space analysis provides a simple screening tool to identify disease clusters, assess the efficacy of infection control measures and the influence of hospital geography and traffic. The results support the importance of infection control measures in the prevention of C. difficile-related disease.

Adult↗
PubMed1994

Role of selenium and other trace elements in the geography of schizophrenia.

Medical geology is the application of trace element geography to epidemiology. This approach is used to compare the geographic distribution of selenium and other trace elements in soil and food with that of high schizophrenia rates in the United States and other countries. Since the comparison is most statistically significant for low selenium, the selenium theory of schizophrenia is evaluated by the principles of environmental epidemiology. Although this examination finds the theory deficient, research questions are generated to test the theory further and to investigate the causes of schizophrenia.

Causality↗
PubMed1994

The moral geography of home care.

One result of the historical division of labor between nurses and physicians is that nurses became the eyes and ears of the physician, extending their perceptual capabilities across space and time. This "gaze of medicine" has evolved with the rise of technology, hospitals, and the medical profession to a sort of scientific totalitarianism. Protecting and enhancing patient agency, which is part of the moral work of nursing practice, can be difficult under such circumstances. Yet the geography of sickness is changing as patients move from the hospital back to the home. Because home is thought of as private, as the patient's domain, nurses may think that supporting patient agency will be easier with this transformation of health care. But that assumption may not be warranted since the gaze of medicine will follow patients and change the landscape of the home. The challenge for nursing will be to sharpen the "gaze of nursing," which is an antidote to the strictly biomedical understanding of disease.

Ecology↗