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- Title
Prevalence, mortality and risk factors associated with very low birth weight preterm infants: an analysis of 33 years.
- Authors
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; Fiori, Humberto H.
- Abstract
Objective: To assess the prevalence, mortality and risk factors associated with the birth of very low birth weight preterm infants over a period of 33 years. Methods: Four cross-sectional studies were analyzed, using data from perinatal interviews of birth cohorts in the city of Pelotas collected in 1982, 1993, 2004, and 2015. Based on perinatal questionnaires, anthropometric measurements of newborns and death certificates were analyzed to obtain the prevalence rate, neonatal mortality, and risk factors (maternal age, income and type of delivery) for very low birth weight. Results: A total of 19,625 newborns were included in the study. In the years 1982, 1993, 2004, and 2015, there were, respectively, 5909, 5232, 4226, and 4258 births. The prevalence of very low birth weight was, respectively, 1.1% (n = 64), 0.9% (n = 46), 1.4% (n = 61), and 1.3% (n = 54). There was no statistical evidence of an increasing trend over time (p = 0.11). Among the risk factors, family income in the three poorest quintiles was associated with prevalence rates that were approximately twice as high as in the richest quintile (p = 0.003). Mortality per 1000 live births for neonates weighing <1500 g decreased from 688 to 259 per thousand from 1982 to 2015 (p < 0.001), but still represented 61% of neonatal deaths in the latter year.
- Subjects
VERY low birth weight; NEONATAL mortality; MORTALITY prevention; DEATH certificates; DISEASE risk factors
- Publication
Jornal de Pediatria, 2020, Vol 96, Issue 3, p327
- ISSN
0021-7557
- Publication type
Article
- DOI
10.1016/j.jped.2018.10.011