Magnusson Brianna M, Masho Saba W, Lapane Kate L
Department of Epidemiology and Community Health, Virginia Commonwealth University, Richmond, VA 23298-0212, USA.
Sex Health. 2011 Mar;8(1):95-101. doi: 10.1071/SH10007.
Reproductive control refers to the ability of a man or woman to control his or her own reproduction. Unintended pregnancy is a commonly used proxy measure for reproductive control.
Using heterosexually active women participating in the National Survey of Family Growth Cycle 6 (n = 4521), we evaluated unintended pregnancy as a proxy measure for reproductive control. We identified four categories of women by self-reported pregnancy intention: (1) women reporting one unintended pregnancy, (2) women reporting two or more unintended pregnancies, (3) women reporting intentionally having no pregnancies and (4) women who reported that all pregnancies were intended (reference category). Polytomous logistic regression, weighted for the complex sampling design, provided estimates of odds ratios (OR) and 95% confidence intervals (CI).
Fifty-one percent of women who reported having one unintended pregnancy went on to experience at least one additional unintended pregnancy. Being black, Hispanic, born to a mother who was <18 years at first birth, having multiple partners and age of first sexual debut (consensual or non-consensual) were significant predictors of multiple unintended pregnancies. Relative to sexual debut after 18 years of age, women reporting a sexual debut at less than 15 years were at increased risk of multiple unintended pregnancies (adjusted OR (reported as consensual): 6.96; 95% CI: 4.26 to 11.39; adjusted OR (reported as non-consensual: 27.10; 95% CI: 11.03-66.57)).
Efforts to delay sexual debut and to protect girls from non-consensual sex are sorely needed to prevent a lifelong trajectory of lack of reproductive control.
生殖控制是指男性或女性控制自身生育的能力。意外怀孕是生殖控制常用的替代指标。
我们以参与全国家庭生育周期第6次调查的性活跃异性恋女性(n = 4521)为研究对象,评估意外怀孕作为生殖控制替代指标的情况。我们根据自我报告的怀孕意愿将女性分为四类:(1)报告有一次意外怀孕的女性;(2)报告有两次或更多次意外怀孕的女性;(3)报告故意不怀孕的女性;(4)报告所有怀孕均为计划内怀孕的女性(参照类别)。采用多分类逻辑回归,并根据复杂抽样设计进行加权,得出比值比(OR)估计值和95%置信区间(CI)。
报告有一次意外怀孕的女性中,51%随后至少又经历了一次意外怀孕。黑人、西班牙裔、母亲首次生育年龄小于18岁、有多个性伴侣以及首次性行为开始的年龄(自愿或非自愿)是多次意外怀孕的显著预测因素。与18岁以后开始性行为的女性相比,报告首次性行为开始年龄小于15岁的女性发生多次意外怀孕的风险增加(校正后OR(报告为自愿性行为):6.96;95%CI:4.26至11.39;校正后OR(报告为非自愿性行为):27.10;95%CI:11.03 - 66.57)。
迫切需要努力推迟首次性行为开始年龄,并保护女孩免受非自愿性行为侵害,以防止其一生缺乏生殖控制。