Ricketts S A
Colorado Department of Public Health and Environment, Denver, USA.
Fam Plann Perspect. 1996 Nov-Dec;28(6):278-80, 284.
Late in 1991, Colorado's Medicaid program approved coverage for the hormonal contraceptive implant among Medicaid recipients. Subsequently, the Colorado Department of Public Health and Environment undertook an analysis of data supplied by the state's Medicaid program of the probability of repeat births among Medicaid recipients. According to life-table analysis of two cohorts of women in the database who had their first Medicaid-eligible birth in 1991 and 1992, the rate of repeat delivery within 24 months of the preceding birth fell from 14.1% among 11,554 women who first delivered in 1991 to 10.6% among 13,624 women who first delivered in 1992. The 25% decline in the rate of repeat births between the two cohorts was statistically significant. These rates were higher among Medicaid-eligible mothers who first gave birth as teenagers-22.3% in the 1991 cohort and 15.9% in the 1992 cohort. Among the 2,739 Medicaid-eligible women who delivered in 1992 and chose to use the implant within six months of delivery, the repeat delivery rate was just 2.5% within 24 months; this proportion was virtually the same among implant users in the 1992 cohort who first gave birth as teenagers (2.3%).
1991年末，科罗拉多州的医疗补助计划批准为医疗补助领取者提供激素避孕植入物保险。随后，科罗拉多州公共卫生与环境部对该州医疗补助计划提供的数据进行了分析，以研究医疗补助领取者再次生育的可能性。根据数据库中两组在1991年和1992年首次符合医疗补助条件生育的女性的生命表分析，前次生育后24个月内的再次分娩率从1991年首次分娩的11,554名女性中的14.1%降至1992年首次分娩的13,624名女性中的10.6%。两组之间再次生育率下降25%具有统计学意义。在首次生育时为青少年的符合医疗补助条件的母亲中，这些比率更高——1991年组为22.3%，1992年组为15.9%。在1992年分娩并在分娩后六个月内选择使用植入物的2,739名符合医疗补助条件的女性中，24个月内的再次分娩率仅为2.5%；在1992年组中首次生育时为青少年的植入物使用者中，这一比例几乎相同（2.3%）。
