Carrasquillo O, Himmelstein D U, Woolhandler S, Bor D H
Department of Medicine, Cambridge Hospital/Harvard Medical School, Mass., USA.
Am J Public Health. 1998 Mar;88(3):464-6. doi: 10.2105/ajph.88.3.464.
The purpose of this study was to analyze duration of coverage among new Medicaid enrollees.
The 1991 Survey of Income and Program Participation was used to examined the duration of coverage for individuals who did not have Medicaid in January 1991 and obtained coverage by May 1993.
Of new Medicaid enrollees, 38% (90% confidence interval [CI] = 34%, 42%) remained covered 1 year later; 26% (90% CI = 21%, 31%) remained covered at 28 months. Of those older than 65 years, 54% (90% CI = 31%, 77%) retained Medicaid for 28 months, vs 20% (90% CI = 14%, 26%) of children. Of people who lost Medicaid, 54% (90% CI = 31%, 77%) had no insurance the following month.
Almost two thirds of new Medicaid recipients lose coverage within 12 months. It is unlikely that Medicaid managed care will enhance continuity of care for new recipients.
本研究旨在分析新加入医疗补助计划的参保者的参保持续时间。
利用1991年的收入与项目参与情况调查，对1991年1月没有医疗补助且在1993年5月前获得参保资格的个人的参保持续时间进行研究。
在新加入医疗补助计划的参保者中，38%（90%置信区间[CI]=34%，42%）在1年后仍保持参保状态；26%（90%CI=21%，31%）在28个月时仍保持参保状态。65岁以上的参保者中，54%（90%CI=31%，77%）的医疗补助持续了28个月，而儿童参保者中这一比例为20%（90%CI=14%，26%）。在失去医疗补助的人群中，54%（90%CI=31%，77%）在次月没有保险。
几乎三分之二的新加入医疗补助计划的参保者在12个月内失去参保资格。医疗补助管理式医疗不太可能提高新参保者的医疗连续性。
