Twinning and Multiple Birth Rates According to Maternal Age in the City of São Paulo, Brazil: 2003–2014

The present study investigates the twinning rates in the city of São Paulo, Brazil, during the years 2003–2014. The data were drawn from the Brazilian Health Department database of Sistema de Informações de Nascidos Vivos de São Paulo—SINASC (Live Births Information System of São Paulo). In general, more information is available on the incidence of twinning in developed countries than in developing ones. A total of 24,589 twin deliveries and 736 multiple deliveries were registered in 140 hospitals of São Paulo out of a total of 2,056,016 deliveries during the studied time period. The overall average rates of singleton, twin, and multiple births per 1,000 maternities (‰) were 987.43, 11.96 (dizygotic (DZ) rate was 7.15 and monozygotic (MZ) 4.42), and 0.36, respectively. We further regressed maternal age and historical time period on percentage of singleton, twin, and multiple birth rates. Our results indicated that maternal age strongly positively predicted twin and multiple birth rates, and negatively predicted singleton birth rates. The historical time period also positively, although weakly, predicted twin birth rates, and had no effect on singleton or multiple birth rates. Further, after applying Weinberg's differential method, we computed regressions separately for the estimated frequencies of DZ and MZ twin rates. DZ twinning was strongly positively predicted by maternal age and, to a smaller degree, by time period, while MZ twinning increased marginally only with higher maternal age. Factors such as increasing body mass index or air pollution can lead to the slight historical increase in DZ twinning rates. Importantly, consistent with previous cross-cultural and historical research, our results support the existence of an age-dependent physiological mechanism that leads to a strong increase in twinning and multiple births, but not singleton births, among mothers of higher age categories. From the ultimate perspective, twinning and multiple births in later age can lead to higher individual reproductive success near the end of the reproductive career of the mother.

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Multiple Birth Rates According to Different Socioeconomic Levels: An Analysis of Four Hospitals from the City of Sao Paulo, Brazil

Twin Research ◽

10.1375/136905203765693825 ◽

2003 ◽

Vol 6 (3) ◽

pp. 177-182 ◽

Cited By ~ 5

Author(s):

Gloria M. D. D. Colletto ◽

Conceição AM Segre ◽

Silvia TRC Rielli ◽

Horácio Rosário

Keyword(s):

Sao Paulo ◽

Multiple Birth ◽

São Paulo ◽

Birth Rates ◽

The City ◽

Socioeconomic Levels

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IMPACT OF MATERNAL AGE ON BIRTH OUTCOMES: A POPULATION-BASED STUDY OF PRIMIPAROUS BRAZILIAN WOMEN IN THE CITY OF SÃO PAULO

Journal of Biosocial Science ◽

10.1017/s0021932005026660 ◽

2005 ◽

Vol 38 (4) ◽

pp. 523-535 ◽

Cited By ~ 21

Author(s):

CARLA JORGE MACHADO

Keyword(s):

Birth Weight ◽

Preterm Birth ◽

Low Birth Weight ◽

Maternal Age ◽

Sao Paulo ◽

Outcome Variable ◽

Delivery Mode ◽

São Paulo ◽

Apgar Scores ◽

The City

The aim of this study is to analyse the impact of maternal age at first birth on low birth weight, preterm birth and low Apgar scores at one minute and at five minutes among live births delivered to primiparous Brazilian women in the city of São Paulo. Analyses were based on 73,820 birth records from the 1998 birth cohort. Logistic regression was used to assess the association between maternal age and each outcome variable, controlling for the following risk factors: delivery mode, plurality, sex, maternal education, number of prior losses, prenatal care, race, parity and community development. Maternal ages below 20 and above 30 years were significantly associated with the risks of low birth weight and preterm birth, but no association was found between maternal ages and Apgar score, with the exception that ages 15–19 reduced the odds of a low one-minute score. Even though this result seems to be inconsistent, low birth weight, preterm birth and low Apgar scores measure different dimensions of newborn well-being, and the association of each measure with maternal age is expected to diverge.

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O parque de Ibirapuera e a construção da imagem de um Brasil moderno

10.31012/978-65-5861-366-4 ◽

2021 ◽

Author(s):

Laura de Souza Cury

Keyword(s):

National Identity ◽

Historical Perspective ◽

Urban Landscape ◽

Sao Paulo ◽

São Paulo ◽

Mechanical Reproduction ◽

Time Period ◽

The 1950S ◽

The City

This book deals with images of the Ibirapuera Park in the city of São Paulo, favoring a historical perspective and, above all, photographic sources. The main focus lies on photographic representations, because it is believed that the mechanical reproduction of this medium helped to disseminate a certain imaginary about the architectural work, the city and even the country, to the population. The images collected come from important archives and publications – both national and international – in the time period that spans from the 1950s to the 1970s. The research aimed to understand the project of “paulistaneidade” and of national identity that prompted the construction of this monument-park in peripheral socioeconomic circumstances, despite the development the city of São Paulo at the time. The aim of the book is to look into how the architectural, urban and photographic symbols of the Ibirapuera Park helped to produce aesthetic and political sense related to notions of modernity and progress, aiming to transform the urban landscape of São Paulo and of Brazil.

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Seasonal Variation of Suicide in the City of São Paulo, Brazil, 1996–2010

Crisis ◽

10.1027/0227-5910/a000222 ◽

2014 ◽

Vol 35 (1) ◽

pp. 5-9 ◽

Cited By ~ 10

Author(s):

Daniel Hideki Bando ◽

Fernando Madalena Volpe

Keyword(s):

Seasonal Pattern ◽

Total Sample ◽

Sao Paulo ◽

Seasonal Patterns ◽

São Paulo ◽

Health Statistics ◽

Males And Females ◽

June July ◽

The City ◽

Over Time

Background: In light of the few reports from intertropical latitudes and their conflicting results, we aimed to replicate and update the investigation of seasonal patterns of suicide occurrences in the city of São Paulo, Brazil. Methods: Data relating to male and female suicides were extracted from the Mortality Information Enhancement Program (PRO-AIM), the official health statistics of the municipality of São Paulo. Seasonality was assessed by studying distribution of suicides over time using cosinor analyses. Results: There were 6,916 registered suicides (76.7% men), with an average of 39.0 ± 7.0 observed suicides per month. For the total sample and for both sexes, cosinor analysis estimated a significant seasonal pattern. For the total sample and for males suicide peaked in November (late spring) with a trough in May–June (late autumn). For females, the estimated peak occurred in January, and the trough in June–July. Conclusions: A seasonal pattern of suicides was found for both males and females, peaking in spring/summer and dipping in fall/winter. The scarcity of reports from intertropical latitudes warrants promoting more studies in this area.

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Reaching Out to the Needy? Access to Justice and Public Attorneys’ Role in Right to Health Litigation in the City of Sao Paulo

SSRN Electronic Journal ◽

10.2139/ssrn.2165209 ◽

2012 ◽

Cited By ~ 1

Author(s):

Daniel Wang ◽

Octavio Luiz Motta Ferraz

Keyword(s):

Right To Health ◽

Sao Paulo ◽

Access To Justice ◽

São Paulo ◽

The City ◽

The Needy

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AEROSOLS OBSERVATIONS BY AN ELASTIC LIDAR SYSTEM OVER THE CITY OF SÃO PAULO, BRAZIL

Journal of Aerosol Science ◽

10.1016/s0021-8502(21)00186-5 ◽

2001 ◽

Vol 32 ◽

pp. 407-408

Author(s):

E. LANDULFO ◽

A. PAPAYANNIS ◽

A. ZANARDI DE FREITAS ◽

M.P.P.. M. JORGE ◽

N.D. VIEIRA JÚNIOR

Keyword(s):

Sao Paulo ◽

São Paulo ◽

Lidar System ◽

The City

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The Impact of COVID-19 on Urban Agriculture in São Paulo, Brazil

Sustainability ◽

10.3390/su13116185 ◽

2021 ◽

Vol 13 (11) ◽

pp. 6185

Author(s):

André Ruoppolo Biazoti ◽

Angélica Campos Nakamura ◽

Gustavo Nagib ◽

Vitória Oliveira Pereira de Souza Leão ◽

Giulia Giacchè ◽

...

Keyword(s):

Urban Agriculture ◽

Technical Assistance ◽

Community Gardens ◽

Sao Paulo ◽

Food Chains ◽

São Paulo ◽

Sales Channels ◽

Paulo State ◽

The Impact ◽

The City

During the initial months of the COVID-19 pandemic, farmers worldwide were greatly affected by disruptions in the food chain. In 2020, São Paulo city experienced most of the effects of the pandemic in Brazil, with 15,587 deaths through December 2020. Here, we describe the impacts of COVID-19 on urban agriculture (UA) in São Paulo from April to August 2020. We analyzed two governmental surveys of 2100 farmers from São Paulo state and 148 from São Paulo city and two qualitative surveys of volunteers from ten community gardens and seven urban farmers. Our data showed that 50% of the farmers were impacted by the pandemic with drops in sales, especially those that depended on intermediaries. Some farmers in the city adapted to novel sales channels, but 22% claimed that obtaining inputs became difficult. No municipal support was provided to UA in São Paulo, and pre-existing issues were exacerbated. Work on community gardens decreased, but no garden permanently closed. Post COVID-19, UA will have the challenge of maintaining local food chains established during the pandemic. Due to the increase in the price of inputs and the lack of technical assistance, governmental efforts should be implemented to support UA.

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