Universidade de Brasília. Hospital Universitário de Brasília. Brasília, DF, Brasil.
Universidade de Brasília. Faculdade de Ciências da Saúde. Departamento de Ciências Farmacêuticas. Brasília, DF, Brasil.
Rev Saude Publica. 2023 Jun 23;57:35. doi: 10.11606/s1518-8787.2023057004449. eCollection 2023.
To estimate the prevalence of unplanned pregnancy in eight public university hospitals, distributed in the five regions that make up Brazil.
A secondary analysis of a national multicenter cross-sectional study, carried out in eight public university hospitals between June 1 and August 31, 2020, in Brazil. Convenience sample including women who gave birth within sixty consecutive days and met the following criteria: over 18 years old; gestational age over 36 weeks at delivery; with a single and live newborn, without malformations.
Sample composed of 1,120 postpartum women, of whom 756 (67.5%) declared that the pregnancy had not been planned. The median prevalence of unplanned pregnancy was 59.7%. The prevalence of unplanned pregnancy across hospitals differed significantly: Campinas (54.8%), Porto Alegre (58.2%), Florianópolis (59%), Teresina (61.2%), Brasília (64.3%), São Paulo (64.6%), Campo Grande (73.9%) and Manaus (95.3%) (p < 0.001). Factors significantly associated with unplanned pregnancy were maternal age, black color, lower family income, greater number of children, greater number of people living in household, and not having a partner.
In the studied sample, about two thirds of the pregnancies were declared as unplanned. The prevalence of unplanned pregnancies was related to social and demographic factors and varied significantly across the university hospitals evaluated.
估计巴西五个地区的八所公立大学医院中意外怀孕的发生率。
这是一项在巴西八所公立大学医院于 2020 年 6 月 1 日至 8 月 31 日期间进行的全国多中心横断面研究的二次分析。采用方便抽样,纳入在 60 天内分娩且符合以下标准的女性:年龄超过 18 岁;分娩时的胎龄超过 36 周;单胎活产,无畸形。
样本由 1120 名产后女性组成,其中 756 名(67.5%)表示怀孕并非计划内。意外怀孕的中位数发生率为 59.7%。各医院间意外怀孕的发生率差异有统计学意义:坎皮纳斯(54.8%)、阿雷格里港(58.2%)、弗洛里亚诺波利斯(59%)、特雷斯皮里斯(61.2%)、巴西利亚(64.3%)、圣保罗(64.6%)、大坎普(73.9%)和马瑙斯(95.3%)(p < 0.001)。与意外怀孕显著相关的因素有:母亲年龄、黑色人种、家庭收入较低、子女数量较多、家庭人口较多、无伴侣。
在所研究的样本中,约三分之二的妊娠被认为是意外怀孕。意外怀孕的发生率与社会人口因素有关,且在评估的各所大学医院间存在显著差异。