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1. Assisted reproductive technology: prevalence and associated factors in Southern Brazil

Author

da Silva, Shana Ginar, Bertoldi, Andréa Dâmaso, da Silveira, Mariângela Freitas, Domingues, Marlos Rodrigues, Evenson, Kelly R, and dos Santos, Iná Silva

Subjects
Adult, Urban Population, Reproductive Techniques, Assisted, lcsh:Public aspects of medicine, Low-Middle Income Countries, Pregnancy Outcome, lcsh:RA1-1270, Fertilization in Vitro, Embryo Transfer, Cohort Studies, Socioeconomic Factors, Pregnancy, Risk Factors, Prevalence, Humans, Original Article, Female, Brazil, Insemination, Artificial
Abstract

OBJECTIVE: To assess the prevalence of successful assisted reproductive technology and to identify the associated factors. METHODS: This population-based birth cohort study was carried out with 4,333 pregnant women expected to deliver in 2015 in the urban area of Pelotas, Southern Brazil. Use of an assisted reproductive technology procedure, type of assisted reproductive technology [in vitro fertilization or intracytoplasmic sperm injection or artificial insemination], number of embryos transferred, success of embryo transfer, number of attempts, and reported reasons for seeking assisted reproductive technology were the main outcomes measured. Use of an assisted reproductive technology procedure was analyzed according to sociodemographic, nutritional, reproductive history, and behavioral characteristics. Unadjusted and adjusted analyses were performed by logistic regression. RESULTS: Among the 4,275 newborns enrolled in the Pelotas 2015 Birth Cohort Study, 18 births (0.4%) were conceived by assisted reproductive technology. Most cases of assisted reproductive technology were by in vitro fertilization (70.6%). All cycles were performed in private clinics under direct out-of-pocket payment. Even after controlling for confounders, maternal age > 35 years, nulliparity and high family monthly income were strongly associated with assisted reproductive technology. CONCLUSIONS: The use of assisted reproductive technology services was reported by only a few women in the Pelotas 2015 Birth Cohort Study. Our study highlights sociodemographic factors associated to assisted reproductive technology procedures. To better understand the patterns and barriers in overall use of assisted reproductive technology services over time, national-level trend studies in assisted reproductive technology treatments and outcomes, as well as studies exploring the characteristics of women who have sought this kind of treatment are needed in low-middle income countries.

Published
2019

3. Prevalence, mortality and risk factors associated with very low birth weight preterm infants: an analysis of 33 years.

Author

Victora, Julia Damiani, Silveira, Mariangela Freitas, Tonial, Cristian Tedesco, Victora, Cesar Gomes, Barros, Fernando Celso, Horta, Bernardo Lessa, dos Santos, Iná Silva, Bassani, Diego Garcia, Garcia, Pedro Celiny R., Scheeren, Marola, and Fiori, Humberto H.

Subjects
VERY low birth weight, NEONATAL mortality, MORTALITY prevention, DEATH certificates, DISEASE risk factors
Abstract

Copyright of Jornal de Pediatria is the property of Sociedade Brasileira de Pediatria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2020
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4. Gestational age at birth and morbidity, mortality, and growth in the first 4 years of life: findings from three birth cohorts in Southern Brazil.

Author

Barros, Fernando C., Rossello, José Luis Diaz, Matijasevich, Alicia, Dumith, Samuel C., Barros, Aluisio J. D., dos Santos, Iná Silva, Mota, Denise, and Victora, Cesar G.

Subjects
DURATION of pregnancy, MORTALITY, INFANTS, GESTATIONAL age
Abstract

Background: We assessed anthropometric status, breastfeeding duration, morbidity, and mortality outcomes during the first four years of life according to gestational age, in three population-based birth cohorts in the city of Pelotas, Southern Brazil. Methods: Total breastfeeding duration, neonatal mortality, infant morbidity and mortality, and anthropometric measures taken at 12 and 48 months were evaluated in children of different gestational ages born in 1982, 1993 and 2004 in Southern Brazil. Results: Babies born <34 weeks of gestation and those born between 34-36 weeks presented increased morbidity and mortality, were breastfed for shorter periods, and were more likely to be undernourished at 12 months of life, in comparison with the 39-41 weeks group. Children born with 37 weeks were more than twice as likely to die in the first year of life, and were also at increased risk of hospitalization and underweight at 12 months of life. Post-term infants presented an increased risk of neonatal mortality. Conclusion: The increased risks of morbidity and mortality among preterm (<37 weeks of gestation) and post-term (>41 weeks) are well known. In our population babies born at 37 also present increased risk. As the proportion of preterm and early term babies has increased markedly in recent years, this is a cause for great concern. [ABSTRACT FROM AUTHOR]

Published
2012
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5. Factors associated with condom use in women from an urban area in southern Brazil.

Author

da Silveira, Mariângela Freitas, dos Santos, Iná Silva, Bérai, Jorge Umberto, Horta, Bernardo Lessa, Tomasi, Elaine, and Victora, Cesar Gomes

Abstract

Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2005
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6. Infant mortality in Pelotas, Brazil: a comparison of risk factors in two birth cohorts.

Author

Baptista Menezes, Ana Maria, Hallal, Pedro Curi, Dos Santos, Iná Silva, Victora, Cesar Gomes, and Barros, Fernando Celso

Subjects
*INFANTS, *MORTALITY, *POVERTY, DEVELOPING countries
Abstract

Objectives. To compare two population-based birth cohorts to assess trends in infant mortality rates and the distribution of relevant risk factors, and how these changed after an 11-year period. Methods. Data from two population-based prospective birth cohorts (1982 and 1993) were analyzed. Both studies included all children born in a hospital (> 99% of all births) in the city of Pelotas, Southern Brazil. Infant mortality was monitored through surveillance of all maternity hospitals, mortality registries and cemeteries. Results. There were 5 914 live-born children in 1982 and 5 249 in 1993. The infant mortality rate decreased by 41%, from 36.0 per 1 000 live births in 1982 to 21.1 per 1 000 in 1993. Socioeconomic and maternal factors tended to become more favorable during the study period, but there were unfavorable changes in birthweight and gestational age. Poverty, high parity, low birthweight, preterm delivery, and intrauterine growth restriction were the main risk factors for infant mortality in both cohorts. The 41% reduction in infant mortality between 1982 and 1993 would have been even greater had the prevalence of risk factors remained constant during the period studied here. Conclusions. There were impressive declines in infant mortality which were not due to changes in the risk factors we studied. Because no reduction was seen in the large social inequalities documented in the 1982 cohort, it is likely that the reduction in infant mortality resulted largely from improvements in health care. [ABSTRACT FROM AUTHOR]

Published
2005
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