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Applicants were randomized either into a group with a limited Medicare community care service benefit and case management or into a control group receiving their regular medical care. Analyses assess whether or not community care management affected health care use. A tendency toward reduced expenditures was observed for the treatment group, combining all(More)
OBJECTIVES We develop and test a model of 12-month mortality among persons (N=3858) with organic dementia. METHODS Data are from caregiver interviews and claims records for persons enrolled in the Medicare Alzheimer's Disease Demonstration Evaluation. Information covers the year prior to enrollment through 36 months. We used Proportional hazards models to(More)
You can apply the power of macro %DO-looping in the tight space of a single statement by using macro arrays. A macro array is a list of macro variables that share the same prefix and a numeric suffix, for example, AA1, AA2, AA3, etc., plus an additional macro variable with a suffix of "N" that contains the length of the array. Two macros, %ARRAY and(More)
BACKGROUND About 1963, a factory in Willits, Mendocino County (County), California added chrome plating to the manufacture of steel products. After years of residents reporting high illness rates, the State undertook a series of investigations. They found exposures had been high and warranted further research into possible health effects. Applying the(More)
BACKGROUND From 1963-1995, a factory in Willits, Mendocino County, CA used toxic hexavalent chromium (Cr(VI)) without adequate measures to protect the population. We use longitudinal hospital data to compare reproductive outcomes for two generations in Willits and two generations in the Rest of County (ROC). This is the first study to quantify the(More)
When confidence intervals for risk-adjusted rates are based on large-sample approximations, with truncation in case the lower or upper limit falls outside the range of 0-100%, you know there is Trouble in River City. This paper presents an exact calculation of confidence intervals for risk-adjusted rates, applied to the evaluation of hospital performance.(More)
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