The 95 percent confidence intervals for estimated proportions of California's non-elderly population who are uninsured, have employment-based health insurance, and have Medicaid coverage are ±1.0 of the estimated percentage; the confidence intervals for family work categories and other subgroups range from ±0.5 percent to ±2.9 percent of the estimated percentage, depending on the subgroup. These confidence intervals are approximations derived from generalized standard error tables provided by the U.S. Census Bureau for estimated percentages. Ibid., Appendix G: Source and Accuracy Statement for the March 1994 Current Population Survey Microdata File.
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E.R. Brown et al., Changes in Health Insurance Coverage of Californians, 1979-1986 (California Policy Seminar, University of California, Berkeley, August 1988).
Explaining Trends in Health Insurance Coverage between 1988 and 1991
Spring
G. Acs, "Explaining Trends in Health Insurance Coverage between 1988 and 1991," Inquiry (Spring 1995): 102-110; and S.H. Long and J. Rodgers, "Do Shifts toward Service Industries, Part-Time Work, and Self-Employment Explain the Rising Uninsured Rate?" Inquiry (Spring 1995): 111-116, come to similar conclusions in their analyses of national data.
Do Shifts toward Service Industries, Part-Time Work, and Self-Employment Explain the Rising Uninsured Rate?
Spring
G. Acs, "Explaining Trends in Health Insurance Coverage between 1988 and 1991," Inquiry (Spring 1995): 102-110; and S.H. Long and J. Rodgers, "Do Shifts toward Service Industries, Part-Time Work, and Self-Employment Explain the Rising Uninsured Rate?" Inquiry (Spring 1995): 111-116, come to similar conclusions in their analyses of national data.
J. Gabel and D. Liston, "HMOs: One-Time or Long-Run Savings?" (under review). Annual increases in California's health benefit costs may be slightly lower.
One California study estimated that cost shifting by private providers added 15 percent to the premiums of employers. See Mandating Medical Benefits for California Employees (San Francisco: William M. Mercer, Inc., 1994).
Data from the California Managed Risk Medical Insurance Board. Estimate of HIPC enrollees who were previously uninsured from D.J. Lipson and J. de Sa, The Health Insurance Plan of California: First Year Results of a Purchasing Cooperative (Washington: Alpha Center, July 1995).
