Measuring access to effective care among elderly medicare enrollees in managed and Fee-for-Service care: a retrospective cohort study.

BACKGROUND: Our aim was to compare access to effective care among elderly Medicare patients in a Staff Model and Group Model HMO and in Fee-for-Service (FFS) care. METHODS: We used a retrospective cohort study design, using claims and automated medical record data to compare achievement on quality indicators for elderly Medicare recipients. Secondary data were collected from 1) HMO data sets and 2) Medicare claims files for the time period 1994-95. All subjects were Medicare enrollees in a defined area of New England: those enrolled in two divisions of a managed care plan with different physician payment arrangements: a staff model, and a group model; and the Medicare FFS population. We abstracted information on indicators covering several domains: preventive, diagnosis-specific, and chronic disease care. RESULTS: On the indicators we created and tested, access in the single managed care plan under study was comparable to or better than FFS care in the same geographic region. Percent of Medicare recipients with breast cancer screening was 36 percentage points higher in the staff model versus FFS (95% confidence interval 34-38 percentage points). Follow up after hospitalization for myocardial infarction was 20 percentage points higher in the group model than in FFS (95% confidence interval 14-26 percentage points). CONCLUSION: According to indicators developed for use in both claims and automated medical record data, access to care for elderly Medicare beneficiaries in one large managed care organization was as good as or better than that in FFS care in the same geographic area.

The longitudinal primary care clerkship at Harvard Medical School.

The primary care clerkship (PCC) at Harvard Medical School was established in 1997. The goals are to provide students with longitudinal experiences with patients and to include modern themes in the curriculum: managing illness and clinical relationships over time; finding the best available answers to clinical questions; preventing illness and promoting health; dealing with clinical uncertainty; getting the best outcomes with available resources; working in a health care team; and sharing decision making with patients. The PCC, a required course in the clinical years, meets one afternoon a week for nine months. Students spend three afternoons per month in primary care practices, where they see three to five patients per session and follow at least one patient ("longitudinal patient") over time. Classroom sessions, in both large- and small-group formats, promote a common educational philosophy and experience, and reinforce habits of problem-based learning established in the preclinical years. The students rated 74% of their preceptors excellent, especially praising their ability to facilitate and support good interpersonal relationships with patients, their ability to encourage students' independent evaluation of patients (as opposed to shadowing), and their enthusiasm for teaching. Students saw their longitudinal patients a mean of 4.8 times; 83% saw their patients at least three times. The PCC complements the curriculum of block clerkships in hospitals, and because the two are offered concurrently, students are required to come to terms with two substantially different cultures within medicine. Other medical schools are beginning to develop longitudinal clerkships to ensure that students have essential educational experiences that are difficult to achieve in block, hospital-based clerkships.

Enrollees' perceptions of participating in the education of medical students at an academically affiliated HMO.

PURPOSE: Little is known about how enrollees in health maintenance organizations (HMOs) perceive the benefits and risks of participating in the education of medical students. This case study elicited the views of enrollees of one academically affiliated HMO about the education of medical students. METHOD: Data from focus groups were used to design two questionnaires that were mailed to 488 adult patients and 298 parents or guardians of pediatric patients. A sample of non-respondents was followed up by telephone. Descriptive analyses were performed on the responses to the questionnaires. RESULTS: Response rates were 46% (adult) and 43% (parent or guardian). More than 75% of the respondents thought the HMO should be involved in teaching, most because teaching contributes to the training of better doctors and increases the skills of teacher-clinicians. Of those who responded, 28% of adults were concerned about risks to confidentiality and 18% were concerned about increased costs for enrollees. Nearly 50% of adults would be uncomfortable with students participating in visits involving "internal" examinations or emotional problems. Of those who responded, 56% of adults and 33% of parents or guardians were uncomfortable about a student's conducting an unsupervised history and physical examination. A total of 52% of adults preferred that the preceptor and student discuss their case in their presence. Respondents who had seen students previously were more comfortable with student activities associated with their care. CONCLUSIONS: The respondents thought the HMO should be involved in teaching, but they had specific concerns about the effects of student participation. Educators in other settings may wish to explore these concerns among their patient populations and develop policies to maximize the "enrollee-friendliness" of medical education in HMOs. While the study provides a first look at how enrollees at one HMO viewed participation in medical students' education, further research is needed at HMOs elsewhere to determine the representativeness of the study's findings.

The effect of medical student teaching on patient satisfaction in a managed care setting.

OBJECTIVE: To measure the effect on patient satisfaction of medical student participation in care and the presence of medical student teaching. DESIGN: Prospective cohort study. SETTING: Eight outpatient internal medicine departments of a university-affiliated HMO in Massachusetts. PATIENTS: Two hundred seven patients seen on teaching days (81 patients who saw a medical student-preceptor dyad and 126 patients who saw the preceptor alone), and 360 patients who saw the preceptor on nonteaching days. Five hundred (88%) of 567 eligible patients responded. MEASUREMENTS AND MAIN RESULTS: Thirteen closed-response items on a written questionnaire, measuring satisfaction with specific dimensions of care and with care as a whole. Visit satisfaction was similar among patients on teaching and nonteaching days. Ninety-one percent of patients seeing a medical student, 93% of patients seeing the preceptor alone on teaching days, and 93% of patients on nonteaching days were satisfied or very satisfied with their visit; less than 2% of patients in each group were dissatisfied with their visit. Satisfaction on all measured dimensions of care was similar for patients seeing a medical student, patients seeing the preceptor alone on teaching days, and patients seeing the preceptor on nonteaching days. CONCLUSIONS: Medical student participation and the presence of medical student teaching had little effect on patient satisfaction. Concerns about patient satisfaction should not prevent managed care organizations from participating in primary care education.

Interpretation of diagnostic tests.

Clinicians can now base clinical decisions on the results of rigorous studies of the performance of diagnostic tests. In selecting the tests, clinicians should take into account their sensitivity (the proportion of patients with the disease who have a positive test result) and specificity (the proportion of patients without disease who have a negative test results). Sensitivity and specificity are affected by the "spectrum" of patients studied i.e. the severity of disease in those with disease and the clinical characteristics of those without disease. Test results are interpreted by predictive values--the proportion of patients with a positive (negative) test result who have (do not have) the disease. Predictive values depend on both test sensitivity and specificity and disease prevalence. The information content of a test is further increased by taking into account where the cut-off point between normal and abnormal is placed, the degree of abnormality of the result, and the results of the preceding tests (done either in parallel or in series). Describing test performance in terms of likelihood ratios facilitates this process. Readers should be able to critique published studies of diagnostic tests which are still far from perfect.

Effectiveness and cost-effectiveness of albendazole in improving nutritional status of pre-school children in urban slums.

OBJECTIVE: To study the clinical efficacy and the incremental cost-effectiveness of albendazole in improving the nutritional status of pre-school children. DESIGN: Single blind, placebo-controlled trial with child as the unit of randomization. SETTING: In the Anganwadi centers of the Integrated Child Development Services situated in the urban slums of Lucknow, North India. METHODS: Thirty-two Anganwadi centers were randomly selected for the trial. Included were registered resident children between 1.5 to 3.5 years of age with informed and written parental consent. The intervention group received 600 mg of albendazole powder every six months while the placebo group received same quantity of calcium powder. Enrolled children were contacted once in six months from January 1995 to 1997 and given treatment. The outcome measure were change in the proportion of underweight (weight for age <-2.00z), stunted (height for age <-2.00z) children and the cost per child prevented from becoming stunted. RESULTS: There were 610 and 451 children in the albendazole and placebo groups, respectively. Mean age at recruitment was 31.8 months (SD: 9.7). Follow-up and compliance in both the groups was >95%. During the 2 year follow-up, the proportion of stunted children increased by 11.44% and 2.06% in the placebo and albendazole groups, respectively, and the difference was 9.38% (95% CI 6.01% to 12.75%; p value <0.0001). Direct fecal smear was positive for the ova of ascaris in 41.2% and 55.3% children in the albendazole and placebo groups, respectively at the end of the study (p value <0.001). The annual family expenditure on illness in the recruited child was Rs. 743 (SD: 662) and Rs. 625 (SD: 609) in the albendazole and the placebo groups, respectively. The incremental cost-effectiveness ratio was Rs 543.00 for each case of stunting prevented with albendazole. There was no difference in the various morbidity or cognitive performance, as judged by the revised Denver prescreening questionnaire, in both the groups at enrollment as well as at the end of the study. CONCLUSIONS: Six monthly albendazole reduces the risk of stunting with a small increase in the expenditure on health care from the payer's perspective. Larger trials are needed to study the effect of albendazole on prevention of stunting, cognitive functions and all-cause childhood mortality.

Faculty training in general internal medicine: a survey of graduates from a research-intensive fellowship program.

PURPOSE: To determine the fellowship experiences and career activities of the graduates of a research-intensive general internal medicine fellowship program. METHOD: In 1997, the authors surveyed all graduates of the Harvard General Internal Medicine Fellowship Program, a research-intensive fellowship begun in 1979. RESULTS: Of 105 surveys delivered to graduates, 103 (98%) were returned. During the fellowship, 82 graduates (80%) presented research findings at regional or national meetings, 89 (86%) published peer-reviewed articles based on their fellowship work, 75 (73%) precepted residents or medical students in the ambulatory setting, and 67 (65%) taught medical students in the preclinical years. At the time of the survey, 100 graduates (97%) held academic appointments: 48 as clinician-investigators, 23 as clinician-administrators, 15 as clinician-educators, and 15 as clinicians. CONCLUSION: Graduates of this research-intensive fellowship pursued academic careers with research, teaching, administration, and clinical activities. Directors of similar fellowship programs should prepare their graduates for all these activities.

How does colorectal cancer present? Symptoms, duration, and clues to location.

OBJECTIVE: Most colorectal cancers still present with symptoms because screening, although effective, is not yet widely practiced. A careful history and physical examination are still the usual methods for suspecting colorectal cancer and ordering appropriate investigation. Therefore, we studied the symptoms, duration, and clues to location of colorectal cancer. METHODS: We reviewed both hospital and office records for 204 consecutive patients with colorectal cancer, first diagnosed after symptoms, at one regional referral center from 1983-87. We abstracted data on demographic characteristics, presence and duration of 15 symptoms, and characteristics of the tumors. RESULTS: The 194 patients included in the study were similar to those with colorectal cancer described elsewhere in terms of age, gender, and tumor location (58% distal to the splenic flexure), and stage (56% stage A or B). The most common symptoms were rectal bleeding (58%), abdominal pain (52%), and change in bowel habits (51%); the majority had anemia (57%) and occult bleeding (77%). The median duration of symptoms (from onset to diagnosis) was 14 wk (interquartile range 5-43). We found no association between overall duration of symptoms and the stage of the tumor. Patient age, gender, and proximal cancer location were also not associated with a longer duration of symptoms before diagnosis. We developed a rule for predicting a distal location of cancer using multiple logistic regression. Independent predictors were (odds ratio [95% CI]): Hb (1.34 for each g/dl [1.16-1.54]); rectal bleeding (3.45 [1.71-6.95]); constipation (3.16 [1.38-7.24]); and proximal symptoms (at least one of anorexia, nausea, vomiting, abdominal pain, or fatigue) (0.48 [0.20-1.02]). The rule had sensitivity of 93% and a specificity of 47%, with an area under the ROC curve of 0.79. CONCLUSIONS: Until prevention of colorectal cancer is more common, we must continue to rely on clinical findings for detecting this cancer. Our results will remind physicians to keep colorectal cancer on the differential diagnosis of "chronic" gastrointestinal symptoms, and our decision rule may prompt earlier investigation with colonoscopy.