Temporal trends and factors associated with preterm birth in Chile, 1992-2018

https://doi.org/10.18294/sc.2023.4203

Published 1 February 2023 Open Access


Carol Toro-Huerta Master in Public Policy. Institute of Public Health, Universidad Andrés Bello. Santiago, Chile. image/svg+xml , Carolina Vidal Master in Public Health. Institute of Public Health, Universidad Andrés Bello. Santiago, Chile. image/svg+xml , Luis Araya-Castillo PhD in Management Sciences. Dean, Faculty of Engineering and Business, Universidad Católica Silva Henríquez, Santiago de Chile, Chile. image/svg+xml




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Keywords:

Premature Labor, Maternal Age, Maternal Health, Child Health, Chile


Abstract


An analytical study based on Chilean birth records obtained from the Department of Statistics and Health Information (DEIS) was conducted. This study aimed to evaluate temporal trends in preterm births by maternal age in Chile from 1990 to 2018. Results show that the preterm birth rate in 1992 was 5.0% and increased to 7.2% in 2018. The average annual percent change (AAPC) was 1.44. Age groups at the extremes (19 and under and 35 and over) presented the highest rates of preterm birth, both at the beginning and at the end of the study period. The latter group showed a smaller decrease at the beginning (1992 to 1995), with an annual percentage change (APC) of -3.00. The probability of preterm birth in both groups was higher compared to the 20-34 year old group. Although Chile boasts some of the best maternal and child health indicators in the region, repercussions associated with the current postponement of maternity – including preterm birth – must be monitored.


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