Hepatitis A antibodies in two socioeconomically distinct populations of São Paulo, Brazil

To evaluate the prevalence of antibody against hepatitis A in two socioeconomically distinct populations of a developing country, 540 serum specimens from children and adults living in São Paulo, Brazil, were tested for IgG anti HAV by a commercial radioimunoassay (Havab, Abbott Laboratories). The prevalence of anti-HAV in low socioeconomic level subjects was 75.0% in children 2-11 years old and 100.0% in adults, whereas in middle socioeconomic level significantly lower prevalences were observed (40.3% in chidren 2-11 years old and 91.9% in adults). Voluntary blood donors of middle socioeconomic level showed a prevalence of 90.4%. These data suggest that hepatitis A infection remains a highly endemic disease in São Paulo, Brazil.

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Seroprevalence of Helicobacter pylori infection among children of low socioeconomic level in São Paulo

Sao Paulo Medical Journal ◽

10.1590/s1516-31802010000400002 ◽

2010 ◽

Vol 128 (4) ◽

pp. 187-191 ◽

Cited By ~ 13

Author(s):

Aurea Cristina Portorreal Miranda ◽

Rodrigo Strehl Machado ◽

Edina Mariko Koga da Silva ◽

Elisabete Kawakami

Keyword(s):

Helicobacter Pylori ◽

Cross Sectional Study ◽

Sao Paulo ◽

Helicobacter Pylori Infection ◽

Socioeconomic Level ◽

São Paulo ◽

Sectional Study ◽

Cross Sectional ◽

Low Socioeconomic ◽

H Pylori

CONTEXT AND OBJECTIVE: Helicobacter pylori infection is mainly acquired during childhood, and is associated with significant morbidity in adults. The aim here was to evaluate the seroprevalence and risk factors of H. pylori infection among children of low socioeconomic level attended at a public hospital in São Paulo, Brazil. DESIGN AND SETTING: Cross-sectional study, among patients attended at an outpatient clinic. METHODS: 326 children were evaluated (150 boys and 176 girls; mean age 6.82 ± 4.07 years) in a cross-sectional study. Patients with chronic diseases or previous H. pylori treatment, and those whose participation was not permitted by the adult responsible for the child, were excluded. The adults answered a demographic questionnaire and blood samples were collected. The serological test used was Cobas Core II, a second-generation test. Titers > 5 U/ml were considered positive. RESULTS: H. pylori infection was diagnosed in 116 children (35.6%). Infected children were older than uninfected children (7.77 ± 4.08 years versus 5.59 ± 3.86 years; p < 0.0001). The seroprevalence increased from 20.8% among children aged two to four years, to 58.3% among those older than 12 years. There were no significant relationships between seropositivity and gender, color, breastfeeding, number of people in the home, number of rooms, bed sharing, living in a shantytown, maternal educational level, family income or nutritional status. In multivariate analysis, the only variable significantly associated with H. pylori seropositivity was age. CONCLUSION: Infection had intermediate prevalence in the study population, and age was associated with higher prevalence.

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Duality of patterns in hepatitis a epidemiology: A study involving two socioeconomically distinct populations in Campinas, São Paulo state, Brazil

Revista do Instituto de Medicina Tropical de São Paulo ◽

10.1590/s0036-46651998000200007 ◽

1998 ◽

Vol 40 (2) ◽

pp. 105-106 ◽

Cited By ~ 23

Author(s):

João Renato Rebello PINHO ◽

Laura Massami SUMITA ◽

Regina Célia MOREIRA ◽

Vanda Akico U. Fick de SOUZA ◽

Claudia P. SARACENI ◽

...

Keyword(s):

Developing Countries ◽

Hepatitis A ◽

Developed Countries ◽

Sao Paulo ◽

Socioeconomic Level ◽

Serum Samples ◽

Low Socioeconomic ◽

Socioeconomic Groups ◽

Paulo State ◽

São Paulo State

To evaluate the prevalence of antibodies against hepatitis A in two socioeconomically distinct populations, 101 and 82 serum samples from high and low socioeconomic groups, respectively, were analysed for the presence of IgG anti-HAV using a commercial ELISA. The prevalence in low socioeconomic level subjects was 95.0%, whereas in high socioeconomic subjects was only 19.6% (p<0.001). These data show a duality in Brazil: anti-HAV prevalence in low socioeconomic subjects is similar to that of developing countries, while in high socioeconomic subjects, a pattern typical of developed countries is found. The control of this infection in our country is primarily related to the improvement of sanitation, but especially for high socioeconomic level populations, the use of vaccination against hepatitis A is strongly advisable to avoid the occasional appearance of this disease in adults.

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Added sugars: consumption and associated factors among adults and the elderly. São Paulo, Brazil

Revista Brasileira de Epidemiologia ◽

10.1590/s1415-790x2012000200003 ◽

2012 ◽

Vol 15 (2) ◽

pp. 256-264 ◽

Cited By ~ 8

Author(s):

Milena Baptista Bueno ◽

Dirce Maria Lobo Marchioni ◽

Chester Luis Galvão César ◽

Regina Mara Fisberg

Keyword(s):

Soft Drink ◽

Linear Regression Analysis ◽

The Elderly ◽

Sao Paulo ◽

Socioeconomic Level ◽

São Paulo ◽

Added Sugar ◽

Added Sugars ◽

Sugar Intake ◽

Factors Associated

OBJECTIVE: To investigate added sugar intake, main dietary sources and factors associated with excessive intake of added sugar. METHODS: A population-based household survey was carried out in São Paulo, the largest city in Brazil. Cluster sampling was performed and the study sample comprised 689 adults and 622 elderly individuals. Dietary intake was estimated based on a 24-hour food recall. Usual nutrient intake was estimated by correcting for the within-person variance of intake using the Iowa State University (ISU) method. Linear regression analysis was conducted to identify factors associated with added sugar intake. RESULTS: Average of energy intake (EI) from added sugars was 9.1% (95% CI: 8.9%; 9.4%) among adults and 8.4% (95% CI: 8.2%; 8.7%) among the elderly (p < 0.05). Average added sugar intake (% EI) was higher among women than among men (p < 0.05). Soft drink was the main source of added sugar among adults, while table sugar was the main source of added sugar among the elderly. Added sugar intake increased with age among adults. Moreover, higher socioeconomic level was associated with added sugar intake in the same group. CONCLUSIONS: Added sugar intake is higher among younger adults of higher socioeconomic level. Soft drink and table sugar accounted for more than 50% of the sugar consumed.

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SEROPREVALENCE OF CHAGASIC INFECTION IN YOUNG INDIVIDUALS IN A BLOOD CENTER IN THE STATE OF SAO PAULO, BRAZIL

Revista do Instituto de Medicina Tropical de São Paulo ◽

10.1590/s0036-46652013000400005 ◽

2013 ◽

Vol 55 (4) ◽

pp. 245-250 ◽

Cited By ~ 3

Author(s):

Elaine Cristina Navarro ◽

Renata Leme Goto ◽

Isabella Silva Ricoboni ◽

Jose Eduardo Corrente ◽

Rita Maria Saccomano Henriques ◽

...

Keyword(s):

Public Health ◽

Chagas Disease ◽

Blood Donors ◽

Public Health Problem ◽

Sao Paulo ◽

São Paulo ◽

Blood Center ◽

Negative Results ◽

Central Regions ◽

The City

SUMMARY This study aimed at estimating the number of cases of non-negative serological reactions to Chagas disease in blood donors at the Blood Center of Botucatu, São Paulo, Brazil, from 2003 to 2010 and at relating them to their cities of origin. Five hundred and seventy-four non-negative results for Chagas disease were evaluated. Of these, 371 (64.8%) were reagent, and 203 (35.4%) were inconclusive. The prevalence of Chagas disease in blood donors was 0.05%. There were, on average, 72 cases/year, and a prevalence of males was observed (64.8%). Forty-three (7.49%) individuals were 18 to 30 years old; 92 (16.02%) were 31 to 40; 147 (25.61%) 41 to 50, and 292 (50.87%) were older than 50 years. It was observed that 29.3% of females with reagent serology were at their fertile age (18 and 45 years). The majority of donors were originally from cities in the southwestern and central regions of São Paulo, but individuals from other states contributed with 20%. The provenance of most donors was the city of Botucatu/SP, followed by the city of Taquarituba/SP. Therefore, the profile of donors at this blood center favors the occurrence of a larger number of non-negative serological reactions. Although there has been a significant reduction in the number of new cases/year for this disease, it is still a public-health problem, and results suggest the need for new epidemiological assessments in the studied region.

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