Abstract：
OBJECTIVE:To present an application of logistic regression modelling to estimate ratios of proportions, such as prevalence ratio or relative risk, and the Delta Method to estimate confidence intervals. METHOD:The Delta Method was used because it is appropriate for the estimation of variance of non-linear functions of random variables. The method is based on Taylor's series expansion and provides a good approximation of variance estimates. A computer program, utilizing the matrix module of SAS, was developed to compute the variance estimates. A practical demonstration is presented with data from a cross-sectional study carried out on a sample of 611 women, to test the hypothesis that the lack of housework sharing is associated with high scores of psychological symptoms as measured by a validated questionnaire. RESULTS:Crude and adjusted prevalence ratio estimated by logistic regression were similar to those estimated by tabular analysis. Also, ranges of the confidence intervals of the prevalence ratio according to the Delta Method were nearly equal to those obtained by the Mantel-Haenszel approach. CONCLUSIONS:The results give support to the use of the Delta Method for the estimation of confidence intervals for ratios of proportions. The method should be seen as an alternative for situations in which the need to control a large number of potential confounders limits the use of stratified analysis.
journal_name
Rev Saude Publicajournal_title
Revista de saude publicaauthors
de Oliveira NF,Santana VS,Lopes AAdoi
10.1590/s0034-89101997000100012subject
Has Abstractpub_date
1997-02-01 00:00:00pages
90-9issue
1eissn
0034-8910issn
1518-8787journal_volume
31pub_type
杂志文章abstract：OBJECTIVE:To assess life histories of alcohol consumption among women in specialized treatment center for alcohol dependency. METHODS:A qualitative study using a life-history approach was carried out in a sample comprising 13 women being treated in an alcohol and drug treatment and research outpatient clinic from May ...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102005000500018
更新日期：2005-10-01 00:00:00
abstract：:Controversies and risks in the social construction of the concept of healthy food are discussed, using soybean as the object of study. Studies concerning the impacts of soy on human health and the effects of its cultivation on the social-environmental domain were reviewed to analyze the political context of the discus...
journal_title：Revista de saude publica
pub_type： 杂志文章,评审
doi：10.1590/s0034-89102011000400019
更新日期：2011-08-01 00:00:00
abstract：OBJECTIVE:To estimate the physical activity level and its association with sociodemographic factors in adults living in rural areas. METHODS:Cross-sectional population study including 567 adults in two rural communities from the Jequitinhonha Valley, Southeastern Brazil, during the years of 2008 and 2009. Physical act...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102010005000023
更新日期：2010-10-01 00:00:00
abstract：:Starting from a paper about closing the gap between sociology and medicine in Brazil and the United Kingdom that was published in 1971, a historical update was made with the aim of reflecting on the new shapes of health-related teaching and research within the social and human sciences, in these two countries. The met...
journal_title：Revista de saude publica
pub_type： 杂志文章,评审
doi：10.1590/s0034-89102009000100022
更新日期：2009-02-01 00:00:00
abstract：OBJECTIVE:To evaluate the vulnerability for STI/HIV among Mexican indigenous women in common law marriage with men who practice sex without condom. METHODS:Ethnography study undertaken in indigenous villages of Michoacán and Oaxaca, Mexico, in February 2004 and December 2005. These rural communities are characterized ...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102008000100017
更新日期：2008-02-01 00:00:00
abstract：OBJECTIVE:To analyze the limitations of studying dental fluorosis in cross-sectional studies. METHODS:Data from the Oral Health of the Brazilian Population (SBBrasil 2003) and the Brazilian Oral Health Survey (SBBrasil 2010) were used. Epidemiological trends for fluorosis in 12-year-old Brazilians, aspects of the reli...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-8910.2013047004359
更新日期：2013-12-01 00:00:00
abstract：:The use of tobacco among school children in ten Brazilian cities, by means of statistical techniques such as bivariate and multivariate analysis (Logit Model), was analyzed. Bivariate analysis revealed a positive association between the use of tobacco and the school child's non-academic occupation, evening course atte...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89101989000500007
更新日期：1989-10-01 00:00:00
abstract：OBJECTIVE:To analyze age as a prognostic factor in early breast cancer. METHODS:Retrospective study analyzing the clinical profile and disease-free survival in a group of 280 subjects aged 25 to 81 years with stage I and II breast cancer followed-up in Porto Alegre, southern Brazil, from 1995 to 2000. Clinical, pathol...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102009005000009
更新日期：2009-04-01 00:00:00
abstract：:The objective of the study was to estimate the prevalence of extreme anthropometric measurements in children indicative of their nutritional status. A cross-sectional study was conducted in a random sample of 1,386 children under five in the state of Alagoas, northeastern Brazil. The prevalence of deficits (z <-2; WHO...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102010005000001
更新日期：2010-04-01 00:00:00
abstract：OBJECTIVES:To identify spatial and space-time clusters with high incidence rates of AIDS in men living in the city of São Paulo since the first case of the disease in 1980. METHODS:HIV/AIDS notifications were obtained from the Notifiable Diseases Information System (57,440 men) between January 1980 and June 2012. The ...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.11606/s1518-8787.2020054001815
更新日期：2020-11-09 00:00:00
abstract：:The complexity of the epidemiological object has provoked discussion of the elements that have constituted it over time sometimes assuming the form of antinomies. By using as substract fundamental texts, the formulation and the proposal for a solution of the antinomies between the social-biological and the collective-...
journal_title：Revista de saude publica
pub_type： 杂志文章,评审
doi：10.1590/s0034-89101996000400012
更新日期：1996-08-01 00:00:00
abstract：OBJECTIVE:To analyze if characteristics of managers, schools, and curriculum are associated with the implementation of programs for drug abuse prevention in elementary and high schools. METHODS:Cross-sectional study, with random sample of 263 school managers. Data were collected between 2012 and 2013 by a program that...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/S1518-8787.2016050005819
更新日期：2016-08-04 00:00:00
abstract：OBJECTIVE:To assess Brazilian Unified Health System outpatient services delivering care to adults living with AIDS in 2007 and to compare with the assessment conducted in 2001. METHODS:The 636 health services registered in the Ministry of Health in 2007 were invited to respond to a previously validated questionnaire (...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102013000100018
更新日期：2013-02-01 00:00:00
abstract：OBJECTIVE:To compare the effectiveness of individual and group strategies in a diabetes education program. METHODS:A total of 104 type-2 diabetes outpatients enrolled in an education program of a teaching hospital in Belo Horizonte, Southeastern Brazil, were randomly selected and assigned to two different education st...
journal_title：Revista de saude publica
pub_type： 杂志文章,随机对照试验
doi：
更新日期：2009-04-01 00:00:00
abstract：:A survey carried out in the metropolitan region of S. Paulo between March and July, 1992, shows that of 3,149 low income women aged from 15 to 49, 21.8% had been sterilized. Of those women living in marital union 29.2% had been sterilized and 34.4% were on the pill. Four hundred and seven sterilized women under 40 yea...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89101994000600008
更新日期：1994-12-01 00:00:00
abstract：:The applicability of tuberculin test in children under five years of age, BCG-vaccinated during their first year of life, is a controversial matter. With a view to clarifying the subject the predictive positive value of the test in a region of high BCG coverage and low prevalence of tuberculous infection was analysed....
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89101992000400008
更新日期：1992-08-01 00:00:00
abstract：OBJECTIVE:To evaluate the impact of air pollution on hospitalizations for respiratory and cardiovascular diseases in the largest Brazilian metropolis. METHODS:This study was carried out at the Metropolitan Region of São Paulo, Brazil. Environmental data were obtained from the network of monitoring stations of nine mun...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.11606/S1518-8787.2017051000223
更新日期：2017-12-04 00:00:00
abstract：OBJECTIVE:To estimate the prevalence of self-reported voice problems and to identify associated factors. METHODS:A cross-sectional study was carried out in a sample of 393 public elementary and middle school teachers in Florianópolis, Southern Brazil, in 2009. A self-administered questionnaire was used. A multivariabl...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102011005000025
更新日期：2011-06-01 00:00:00
abstract：OBJECTIVE:To analyze the influence of the socioeconomic context of the community on chronic child malnutrition in Colombia. METHODS:We estimated multilevel logistic models using data from the National Demographic and Health Survey in Colombia in 2010. The final sample included 11,448 children under the age of five gat...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.11606/S1518-8787.2018052000394
更新日期：2018-07-26 00:00:00
abstract：OBJECTIVE:To assess job satisfaction and work impact among providers of a mental health service and their potential association with sociodemographic and job-related variables. METHODS:A cross-sectional study was carried out in 321 employees of a long-stay mental health service in Rio de Janeiro, Southeastern Brazil, ...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102007000200011
更新日期：2007-04-01 00:00:00
abstract：OBJECTIVE:To spatially delimit cutaneous leishmaniasis (CL) human contact risk zones (CoRZ) using remote sensing and geoprocessing techniques. METHODS:A total of 27 CL cases reported from 1992 to 1997 in the municipality Itapira, Brazil, were studied. The influence of some important environmental variables related to ...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102004000400005
更新日期：2004-08-01 00:00:00
abstract：:All babies born in the hospitals of the city of Pelotas, Brazil, in 1982 were studied soon after delivery and followed up prospectively during the first years of their lives. In 1993, this study was repeated with a similar methodology, with the aim of assessing eventual changes in the level of maternal and child healt...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89101996000100005
更新日期：1996-02-01 00:00:00
abstract：:The objective of the study was to present the within-person variance component for adjusting nutrient distribution in adults and elderly people. The data used were from a population-based survey with a representative sample (n = 511) of individuals aged 19 years and over in the municipality of São Paulo, Southeastern ...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102011000300022
更新日期：2011-06-01 00:00:00
abstract：:The paper discusses the articulation among epidemiological information systems, scientific production and men's health policies. Three secondary sources were used: data from the Ministry of Health (Mortality and Hospital Information Systems, Surveillance of Protection and Risk Factors for Chronic Diseases through Tele...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102012005000061
更新日期：2012-12-01 00:00:00
abstract：:Resting adults Culicidae were collected from January 1992 through January 1993 in several habitats of the Ribeira Valley region. The diversity of species found among them suggested that the vegetation remaining within human settlements favored the survival and the population increase of some mosquitoes. Among there ar...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89101993000600002
更新日期：1993-12-01 00:00:00
abstract：OBJECTIVE:To assess the clinical-epidemiological descriptors of inpatient mortality in persons infected with the human immunodeficiency virus (HIV). METHOD:All adult HIV/AIDS patients hospitalized at a university hospital in 1990, 1992 and 1994 were studied retrospectively. Descriptive statistics for all variables of ...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89101998000600011
更新日期：1998-12-01 00:00:00
abstract：:The study was conducted in the municipality of Londrina, a medium-sized city of southern Brazil. Analysis was performed in the characteristics of road accidents that had occurred during the first semester of 1996, resulting in 3,643 victims. Car or small truck collisions were the most common type of accident. The rate...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102001000300017
更新日期：2001-06-01 00:00:00
abstract：OBJECTIVE:An assessment of the evolution of the profile of mortality from avoidable diseases, in the municipality of Maringá, PR (Brazil), 1980 through 1993, as related to the quality of health attendance. METHODS:Based on the proposal to study caregiving results, eleven causes of avoidable deaths were selected. The e...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89101999000200004
更新日期：1999-04-01 00:00:00
abstract：OBJECTIVE:To assess costs and consequences of prenatal care on perinatal morbidity and mortality. METHODS:Evaluation study using two types of analysis: implementation and efficiency analysis, carried out at 11 Family Health Units in the Recife, Northeastern Brazil, in 2006. The costs were calculated by means of the ac...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102011005000014
更新日期：2011-06-01 00:00:00
abstract：OBJECTIVE:To assess communications aspects related to pesticide use in a rural area of the Rio de Janeiro state, Brazil. METHODS:The study was carried out in the area of São Lourenço stream. It was based on methodological triangulation comprising: semi-structured interviews and observation of a local population sample...
journal_title：Revista de saude publica
pub_type： 杂志文章
doi：10.1590/s0034-89102001000600010
更新日期：2001-12-01 00:00:00
