Factor analysis of digestive cancer mortality and food consumption in 65 Chinese counties.
(65/4330)
Dietary factors were analyzed for the regional difference of GI tract cancer mortality rates in China. Sixty-five rural counties were selected among a total of 2,392 counties to represent a range of rates for seven most prevalent cancers. The dietary data in the selected 65 counties were obtained by three-day dietary record of households in 1983. The four digestive cancer mortality rates (annual cases per 100,000 standardized truncated rates for ages 35-64) and per capita food consumption were analyzed by the principal components factor analysis. Esophageal cancer associated with poor area, dietary pattern rich in starchy tubers, and salt, lack of consumption of meat, eggs, vegetables and rice. Stomach cancer seemed to be less associated with diet in this study because of its small model Kaiser-Meyer-Olkin (KMO) measure of sampling adequacy, suggesting some other carcinogenic factors would play more important role in the development of this cancer in China. The colon and rectal cancer showed close relation to diet; rich in sea vegetables, eggs, soy sauce, meat and fish, while lack in consumption of milk and dairy products. Rapeseed oil was more important risk factor for colon cancer than that of rectum. Rice, processed starch and sugar were closely associated with colon cancer, supporting the insulin/colon cancer hypothesis. (+info)
Relation between income inequality and mortality: empirical demonstration.
(66/4330)
OBJECTIVE: To assess the extent to which observed associations at population level between income inequality and mortality are statistical artefacts. DESIGN: Indirect "what if" simulation by using observed risks of mortality at individual level as a function of income to construct hypothetical state level mortality specific for age and sex as if the statistical artefact argument were 100% correct. SETTING: Data from the 1990 census for the 50 US states plus Washington, DC, were used for population distributions by age, sex, state, and income range; data disaggregated by age, sex, and state from the Centers for Disease Control and Prevention were used for mortality; and regressions from the national longitudinal mortality study were used for the individual level relation between income and risk of mortality. RESULTS: Hypothetical mortality, while correlated with inequality (as implied by the logic of the statistical artefact argument), showed a weaker association with states' levels of income inequality than the observed mortality. CONCLUSIONS: The observed associations in the United States at the state level between income inequality and mortality cannot be entirely or substantially explained as statistical artefacts of an underlying individual level relation between income and mortality. There remains an important association between income inequality and mortality at state level over and above anything that could be accounted for by any statistical artefact. This result reinforces the need to consider a broad range of factors, including the social milieu, as fundamental determinants of health. (+info)
The "Let's Get Alarmed!" initiative: a smoke alarm giveaway programme.
(67/4330)
OBJECTIVES: To reduce fires and fire related injuries by increasing the prevalence of functioning smoke alarms in high risk households. SETTING: The programme was delivered in an inner London area with above average material deprivation and below average smoke alarm ownership. The target population included low income and rental households and households with elderly persons or young children. METHODS: Forty wards, averaging 4000 households each, were randomised to intervention or control status. Free smoke alarms and fire safety information were distributed in intervention wards by community groups and workers as part of routine activities and by paid workers who visited target neighbourhoods. Recipients provided data on household age distribution and housing tenure. Programme costs were documented from a societal perspective. Data are being collected on smoke alarm ownership and function, and on fires and related injuries and their costs. RESULTS: Community and paid workers distributed 20,050 smoke alarms, potentially sufficient to increase smoke alarm ownership by 50% in intervention wards. Compared with the total study population, recipients included greater proportions of low income and rental households and households including children under 5 years or adults aged 65 and older. Total programme costs were 145,087 Pounds. CONCLUSIONS: It is possible to implement a large scale smoke alarm giveaway programme targeted to high risk households in a densely populated, multicultural, materially deprived community. The programme's effects on the prevalence of installed and functioning alarms and the incidence of fires and fire related injuries, and its cost effectiveness, are being evaluated as a randomized controlled trial. (+info)
Ecological analysis of ethnic differences in relation between tuberculosis and poverty.
(68/4330)
OBJECTIVE: To examine the effect of ethnicity on the relation between tuberculosis and deprivation. DESIGN: Retrospective ecological study comparing incidence of tuberculosis in white and south Asian residents of the 39 electoral wards in Birmingham with ethnic specific indices of deprivation. SETTING: Birmingham, 1989-93. SUBJECTS: 1516 notified cases of tuberculosis. MAIN OUTCOME MEASURES: Rates of tuberculosis and measures of deprivation. RESULTS: Univariate analysis showed significant associations of tuberculosis rates for the whole population with several indices of deprivation (P<0.01) and with the proportion of the population of south Asian origin (P<0.01). All deprivation covariates were positively associated with each other but on multiple regression, higher level of overcrowding was independently associated with tuberculosis rates. For the white population, overcrowding was associated with tuberculosis rates independently of other variables (P=0.0036). No relation with deprivation was found for the south Asian population in either single or multivariable analyses. CONCLUSIONS: Poverty is significantly associated with tuberculosis in the white population, but no such relation exists for those of Asian ethnicity. These findings suggest that causal factors, and therefore potential interventions, will also differ by ethnic group. (+info)
Ecological study of social fragmentation, poverty, and suicide.
(69/4330)
OBJECTIVES: To investigate the association between suicide and area based measures of deprivation and social fragmentation. DESIGN: Ecological study. SETTING: 633 parliamentary constituencies of Great Britain as defined in 1991. MAIN OUTCOME MEASURES: Age and sex specific mortality rates for suicide and all other causes for 1981-92. RESULTS: Mortality from suicide and all other causes increased with increasing Townsend deprivation score, social fragmentation score, and abstention from voting in all age and sex groups. Suicide mortality was most strongly related to social fragmentation, whereas deaths from other causes were more closely associated with Townsend score. Constituencies with absolute increases in social fragmentation and Townsend scores between 1981 and 1991 tended to have greater increases in suicide rates over the same period. The relation between change in social fragmentation and suicide was largely independent of Townsend score, whereas the association with Townsend score was generally reduced after adjustment for social fragmentation. CONCLUSIONS: Suicide rates are more strongly associated with measures of social fragmentation than with poverty at a constituency level. (+info)
How does the prevalence of specific morbidities compare with measures of socio-economic status at small area level?
(70/4330)
BACKGROUND: Evidence from other studies has show large, systematic differences between the health of social groups. It is not clear whether this relationship applies equally to all areas of health need. We assess whether a variety of areas of ill health show positive correlations with increasing socioeconomic disadvantage, and whether there are indicators of socio-economic disadvantage that are better than others at predicting the prevalence of specific morbidities at a population level. METHODS: The prevalence of a range of common morbidities was determined by a postal questionnaire sent to 16,750 subjects (response rate 79 per cent), and compared with socio-economic information obtained from the 1991 Census. RESULTS: There was substantial variation in the degree to which the various morbidities were related to the socioeconomic variables. When compared with socio-economic variables, long-term limiting illness, respiratory conditions and depression had high correlations of +0.8 or more. Cardiovascular conditions were less related (r = +0.60 to +0.79). None of the disorders of the gastrointestinal system showed a high correlation with socio-economic variables. There was also substantial variation in the degree of correlation of the socio-economic measures with each area of morbidity. The measures that showed the highest correlations were in respect of household characteristics such as car ownership and single parent households. Variables describing household amenities such as lacking a bath or central heating were least related to the morbidity measures. CONCLUSIONS: Some areas of morbidity show strong associations with socio-economic disadvantage, but others show only modest or no relationship. The optimum choice of socio-economic variable as a proxy for health need depends on the area of illness being considered. (+info)
Integrating reproductive health: myth and ideology.
(72/4330)
Since 1994, integrating human immunodeficiency virus/sexually transmitted disease (HIV/STD) services with primary health care, as part of reproductive health, has been advocated to address two major public health problems: to control the spread of HIV; and to improve women's reproductive health. However, integration is unlikely to succeed because primary health care and the political context within which this approach is taking place are unsuited to the task. In this paper, a historical comparison is made between the health systems of Ghana, Kenya and Zambia and that of South Africa, to examine progress on integration of HIV/STD services since 1994. Our findings indicate that primary health care in Ghana, Kenya and Zambia has been used mainly by women and children and that integration has meant adding new activities to these services. For the vertical programmes which support these services, integration implies enhanced collaboration rather than merged responsibility. This compromise between comprehensive rhetoric and selective reality has resulted in little change to existing structures and processes; problems with integration have been exacerbated by the activities of external donors. By comparison, in South Africa integration has been achieved through political commitment to primary health care rather than expanding vertical programmes (top-down management systems). The rhetoric of integration has been widely used in reproductive health despite lack of evidence for its feasibility, as a result of the convergence of four agendas: improving family planning quality; the need to improve women's health; the rapid spread of HIV; and conceptual shifts in primary health care. International reproductive health actors, however, have taken little account of political, financial and managerial constraints to implementation in low-income countries. (+info)