Atualização das estimativas da magnitude do aborto induzido, taxas por mil mulheres e razões por 100 nascimentos vivos do aborto induzido por faixa etária e grandes regiões. Brasil, 1995 a 2013

Introduction

Estimates of induced abortion in Brazil were inaccurate until the early 1990, varying between 300 million and 3.3 million clandestine abortions. In 2000, were estimated 22.3 abortions induced by 1000 women in Brazil, using the methodology proposed by the Alan Guttmacher Institute.

Objective

Update estimates of induced abortion in Brazil during the period of 1995 to 2013.

Method

The primary data source was the number of hospitalizations for abortion registered in the Hospital Information System of the Unified Health System, disaggregated by region and age group. The number of induced abortions has been estimated by interval upper limit, multiplying by five the number of hospitalizations, and by lower bound, by multiplying by four the number of hospitalizations. It was considered under percentage record of 12.5% and the proportion of miscarriages of 25%.

Results

Between 1995 and 2013, the hospitalizations of women from 10 to 49 years by complications from abortion decreased by 27% and the estimate of the annual number of induced abortions declined 26%. It was observed decline of upper limit of induced abortion ratio of 27/1000 women for 16/1000. The same was noticed for the lower bound of 21/12/1000 to 1000. In the two regions with the highest number of hospitalizations for complications of abortion, Northeast and Southeast, showed significant reduction in the number of cases of 35% and 27% respectively. Found a great reduction in the risk of induced abortion, of 43% between 15 and 29 years, 49% between 20 and 29 years old, 26% between 30 and 39 years and 50% of 40 to 49 years. The estimation of induced abortions decreased from 864,628 to 687,347 (lower limit), and from 1,086,708 to 865,160 (upper limit).

Conclusion

Both the reason of abortion per 100 live births and the rate of induced abortions per thousand women aged 15 to 49 years in Brazil showed decrease in the studied period.