Breaking down the barriers to restore public confidence: disclosure.
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Biomedical subjects
Publications and source records attributed to M Ciol.
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STUDY DESIGN: This study used a prospective cohort design. OBJECTIVE: To examine factors associated with favorable self-reported patient outcomes 1 year after elective surgery for degenerative back problems. SUMMARY OF BACKGROUND DATA: Many previous studies addressing the results of low back surgery have been conducted in academic institutions or by single surgeons. As part of a quality improvement effort, surgeons in private practice led a community-based outcomes management project in Washington State. METHODS: Patients ages 18 and older with the following diagnoses were eligible for the study: degenerative changes, herniated disc, instability, and spinal stenosis. Nine orthopedists and neurosurgeons enrolled a total of 281 patients. Participants were asked to complete baseline and 1-year follow-up surveys. Data concerning diagnoses, clinical signs, and operative procedures were provided by the surgeons. The researchers examined sociodemographic characteristics, self-reported symptoms before surgery, preoperative clinical signs, diagnoses, and operative procedures associated with three primary outcomes: better functioning, improved quality of life, and overall treatment satisfaction. RESULTS: Follow-up surveys were completed by 236 (84%) of the enrolled patients. Approximately two thirds of the study participants reported much better functioning (65%), a great quality of life improvement (64%), and a very positive perspective about their treatment outcome (68%). The following variables were associated with worse patient outcomes: older age, previous low back surgery, workers' compensation coverage, and consultation with an attorney before surgery. Patients undergoing a fusion procedure were more likely to report good outcomes. CONCLUSIONS: The authors' experience indicates that community-based outcomes data collection efforts are feasible and can be incorporated into usual clinical practice. The study results indicate that compensation payments and litigation are two important predictors of poor outcomes after low back surgery in community practice. Because of small numbers, varied diagnoses, and possible selection bias, the findings with respect to fusion should be interpreted cautiously.
OBJECTIVE: To determine if Medicare's payment system for rehabilitation hospitals encourages discharges to skilled nursing facilities (SNFs). Medicare payments to hospitals are based on limits derived from a hospital's average allowable patient charge during a base year. Thereafter, payments are capped, but hospitals receive additional incentive payments if succeeding costs are reduced. It was a hypothesis of this study that discharges to SNFs would increase after the base year. In this way, rehabilitation hospitals would limit high-cost patients when under reimbursement limitation. METHODS: Medicare claims data for 162,239 discharges from 69 rehabilitation hospitals between 1987 and 1994 were analyzed. After controlling for patient and provider characteristics, we compared the odds of being discharged to a SNF before, during, and after the base year. RESULTS: Before and during the base year, 4.7% and 6.6% of patients were discharged to a SNF. After the base year, 9% of patients were sent to a SNF. After controlling for temporal and seasonal trends, as well as for patient and provider characteristics, those discharged after the base year were significantly more likely to be sent to a SNF than those discharged during the base year. These odds increased with increasing length of stay in the rehabilitation hospital. For those with a length of stay of 29 days (75th percentile) the odds increased by 11% (odds ratio, 1.11; 95% confidence interval, 1.04-1.18). CONCLUSIONS: The incentives of Medicare's reimbursement system may encourage an increase in the percentage of patients discharged to SNFs after the base year. These findings have significant implications regarding the structure of Medicare's prospective payment system currently planned for this class of hospital.
Risk adjustment may be a sensible strategy to reduce selection bias because it links managed care payment directly to the costs of providing services. In this paper we compare risk adjustment models in two populations (public employees and their dependents, and publicly-insured low income individuals with disabilities) in Washington State using two statistical approaches and three health status measures. We conclude that a two-part logistic/GLM statistical model performs better in populations with large numbers of individuals who do not use health services. This model was successfully implemented in the employed population, but the managed care program for the publicly insured population was terminated before risk adjustment could be applied. The choice of the most appropriate health status measure depends on purchasers' principles and desired outcomes.
BACKGROUND: Back surgery rates are rapidly rising in the United States. This surgery is usually elective, so patient preferences are important in the treatment decision. OBJECTIVES: The objective of this study was to determine the impact on outcomes and surgical choices of an interactive, diagnosis-specific videodisk program for informing patients about treatment choices. RESEARCH DESIGN: This was a randomized, controlled trial at 2 sites comparing the interactive video plus a booklet with the booklet alone. SUBJECTS: Elective surgery candidates (n = 393) included 171 patients with herniated disks, 110 with spinal stenosis, and 112 with other diagnoses. MEASURES: Mailed questionnaires were used to assess outcomes and satisfaction; surgery rates were determined by questionnaires and automated records. RESULTS: Symptom and functional outcomes at 3 months and 1 year were similar between study groups. The overall surgery rate was 22% lower in the videodisk group (26% versus 33%, P = 0.08). Among patients with herniated disks, those in the video group underwent significantly less surgery (32% versus 47%, P = 0.05 by Kaplan-Meier test). Among patients with spinal stenosis, surgery rates in the video group were higher (39% for the video group, 29% for the booklet group; P = 0.4). There was little effect on patient satisfaction, but patients in the video group felt better informed. CONCLUSIONS: The program appears to facilitate decision making and may help to ensure informed consent. For patients with herniated disks, it reduced the surgery rate without diminishing patient outcomes. Its impact on costs of care depends on the proportion of patients with various diagnoses and on local surgery rates.
STUDY DESIGN: The present study examines relationships between workers compensation coverage and the surgical treatment of patients with low back problems. OBJECTIVES: To examine the mix of surgical procedures, reoperation rates, and resource use among patients receiving workers compensation and these with other sources of payment. SUMMARY OF BACKGROUND DATA: There is evidence that patients with low back pain who receive workers' compensation have poorer clinical outcomes than other patients with back problems. METHODS: The authors used data from Washington State's automated hospital discharge system for 1988 through 1991. The study group included 1502 patients receiving workers compensation and 2674 patients not receiving workers compensation. RESULTS: If the patients were covered by workers' compensation, they were 1.37 times more likely to undergo surgery involving fusion (95% confidence interval, 1.04-1.80) and almost twice as likely to have a subsequent reoperation within 3 years of the index surgery (odds ratio, 1.80; 95% confidence interval, 1.50-2.15. CONCLUSIONS: In Washington state, patients receiving workers' compensation have higher rates of low back fusion surgery and reoperations than other patients.
For several years, interest in clinical practice patterns has increased due to concerns about the costs and quality of health care. Our objectives were to examine recent trends and geographic variations in low back pain hospitalization. We analyzed data from a Washington State automated database for 1987-1992. Low back surgery rates in Washington changed little during the study years. In contrast, nonsurgical hospitalization rates fell from 15.5 to 5.1 per 10,000. The proportion of operations involving fusion decreased from 15.8% in 1987 to 11.7% in 1990, and then remained stable. During 1990, important county-to-county variations were observed in surgery rates, nonsurgical hospitalization rates, the proportion of operations involving fusion, and the percentage of surgical patients undergoing reoperation within 3 years. Wide county variations suggest that there may be overutilization or underutilization of low back pain treatments in some geographic areas. A more consistent approach to the management of back problems may benefit patients.
Large computerized databases often arise from national surveys, insurance claims, and statewide health care registries. These databases are increasingly used to examine patterns of medical care and certain outcomes of care and may be helpful in planning clinical trials. They are highly representative of defined populations, but have limited clinical information. Methods have been developed to identify episodes of low back pain and to quantify the severity of unrelated, comorbid medical conditions. Pitfalls in analysis are discussed, including limitations of diagnosis and procedure coding, cross-sectional nature of most data, limited clinical detail, and the necessarily observational (not experimental) nature of any group comparisons. There is growing interest in expanding the clinical information in such databases, for both quality improvement and research purposes.
Median ages at diagnosis were 36.5 and 42.5 mo for 1523 males and 1678 females with unilateral Wilms' tumor registered between October 1969 and December 1985; they were 23.5 mo and 30.5 mo for 100 males and 141 females with bilateral disease. The median age for multicentric, unilateral cases was intermediate between the bilateral and unicentric medians. Patients with hemihypertrophy in addition to their Wilms' tumor had a typical age distribution, whereas those with aniridia or characteristic genitourinary anomalies were substantially younger. Patients with perilobar nephroblastomatosis had a median age of 35.5 mo and those with intralobar nephroblastomatosis, a median age of 18.5 mo. Most of the bilateral disease occurred in the presence of one or both of these precursor lesions. These findings suggest heterogeneity in the pathogenesis of Wilms' tumor, having implications for genetic counselling, and call into question certain aspects of Knudson and Strong's two-stage mutational model for the origin of Wilms' tumor.