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Biomedical subjects

R A Hayward

Publications and source records attributed to R A Hayward.

At least 55 records · Page 3Linked to original sources

Evaluating the care of general medicine inpatients: how good is implicit review?

OBJECTIVE: Peer review often consists of implicit evaluations by physician reviewers of the quality and appropriateness of care. This study evaluated the ability of implicit review to measure reliably various aspects of care on a general medicine inpatient service. DESIGN: Retrospective review of patients' charts, using structured implicit review, of a stratified random sample of consecutive admissions to a general medicine ward. SETTING: A university teaching hospital. PATIENTS: Twelve internists were trained in structured implicit review and reviewed 675 patient admissions (with 20% duplicate reviews for a total of 846 reviews). RESULTS: Although inter-rater reliabilities for assessments of overall quality of care and preventable deaths (kappa = 0.5) were adequate for aggregate comparisons (for example, comparing mean ratings on two hospital wards), they were inadequate for reliable evaluations of single patients using one or two reviewers. Reviewers' agreement about most focused quality problems (for example, timeliness of diagnostic evaluation and clinical readiness at time of discharge) and about the appropriateness of hospital ancillary resource use was poor (kappa < or = 0.2). For most focused implicit measures, bias due to specific reviewers who were systematically more harsh or lenient (particularly for evaluation of resource-use appropriateness) accounted for much of the variation in reviewers' assessments, but this was not a substantial problem for the measure of overall quality. Reviewers rarely reported being unable to evaluate the quality of care because of deficiencies in documentation in the patient's chart. CONCLUSION: For assessment of overall quality and preventable deaths of general medicine inpatients, implicit review by peers had moderate degrees of reliability, but for most other specific aspects of care, physician reviewers could not agree. Implicit review was particularly unreliable at evaluating the appropriateness of hospital resource use and the patient's readiness for discharge, two areas where this type of review is often used.

Health Resources↗

Data and the internal medicine houseofficer: alumni's views of the educational value of a residency program's research requirement.

The authors surveyed 112 recent alumni and 92 current residents (70% responded) at a residency program that requires original research. Most alumni felt that the research project was a valuable learning experience, particularly in improving their abilities to critically review the medical literature. Almost a third felt that it had influenced their career choices (academic medicine vs private practice). The overall learning value of no other residency program component was rated significantly higher than that of the research project. While 65% of current residents supported making the senior resident research project optional, 64% of alumni opposed this change (p < 0.0001). These results support requiring formal oral presentations and encouraging original research projects as a part of residency training.

Attitude of Health Personnel↗

Coming to terms with the era of AIDS: attitudes of physicians in U.S. residency programs.

PURPOSE: To examine factors associated with residents' willingness to provide care to persons with AIDS. PATIENTS AND METHODS: Survey of all senior residents in internal medicine and family medicine in ten geographically representative states in early 1989. RESULTS: Preferring not to care for persons with AIDS was less common in the western United States and more common among those with more conservative politics, men physicians, Asian physicians, and foreign medical graduates. Multivariate analysis revealed scores on six attitudinal scales (homophobia, dislike of intravenous drug users, professional responsibility, fear of AIDS, futility of providing AIDS care, and clinical difficulty of AIDS care) to be strong independent predictors of willingness to care for persons with AIDS (adjusted R2 = 0.42). The authors postulated a model in which these six fundamental attitudes functioned as intervening variables between demographic characteristics and expressed willingness to provide AIDS care. Regression results supported the hypothesis that the associations between demographic characteristics and willingness to provide AIDS care were mediated via these attitudes. However, having had ambulatory experience in AIDS care during residency was associated with future intentions to provide such care, independent of negative attitudes. CONCLUSIONS: Physician willingness to care for persons with AIDS is inversely related to fear of acquiring AIDS, viewing treatment as futile or difficult, dislike of certain risk groups, and a lower sense of professional responsibility. These results identify concerns and stresses that should be addressed by residency programs, and emphasize the need for attention to the ethics and ideals of the profession in medical education.

Acquired Immunodeficiency Syndrome↗

An evaluation of generic screens for poor quality of hospital care on a general medicine service.

In this study, 675 general medicine admissions at a university teaching hospital were reviewed to evaluate six potential generic quality screens: 1) in-hospital death; 2) 28-day early readmission; 3) low patient satisfaction; 4) worsening severity of illness (as determined by an increase in Laboratory Acute Physiology and Chronic Health Evaluation APACHE-L); and 5) deviations from expected hospital length of stay; and 6) expected ancillary resource use. The quality of care for a stratified random sample of admissions were evaluated using structured implicit review (inter-rate reliability, Kappa = 0.5). Patients who died in-hospital were substantially more likely than those who were discharged alive to be rated as having had substandard care (30% vs. 10%; P < 0.001). In contrast, cases who had subsequent early readmissions did not have poorer quality ratings. Similarly, lower patient satisfaction was not associated with poorer ratings of technical process of care. Cases with lower-than-expected ancillary resource use (case-mix adjusted for diagnosis-related group) were more likely to be rated as having received substandard care than those with higher-than-expected resource use (16% vs. 6%; P < 0.05), and there was a similar trend for cases with shorter than expected length of stays. Associations between worsening severity of illness, as determined by APACHE-L scores, and quality were confounded because such patients were more likely to have died in-hospital.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

Gender and hospital resource use. Unexpected differences.

Several recent studies have explored gender differences in medical care that are not attributable to clinical characteristics. At an 880-bed teaching hospital between July 1987 and June 1990, we studied the importance of gender on two measures of hospital care: length of stay and ancillary service use. The latter was measured on a relative value unit (RVU) scale, based on an estimation of direct cost dollars. Neither mean age nor in-hospital mortality differed between the 9,102 women and 10,285 men. After case-mix adjustment, women stayed in the hospital 0.22 days longer than men (p = 0.01) but consumed 67 fewer RVUs (p = 0.01). This RVU difference dissolved when intensive care unit (ICU) stays were eliminated; men were 1.13 times more likely (95% confidence interval 1.07 to 1.19) to be placed in the ICU. Being married shortened length of stay and women were less likely to be married (51% vs. 68%; p < 0.001), but even within marital status subgroups women remained in the hospital longer than men. Whether this longer length of stay and less technologically intensive care for women reflects a difference in illness severity or physician gender bias requires further study.

Aged↗

APACHE-L: a new severity of illness adjuster for inpatient medical care.

A principal concern regarding Medicare's diagnosis-related group (DRG)-based prospective payment system is whether hospitals caring for more severely ill patients may be undercompensated for the services they provide. Research on possible inequities in hospital payment has been hampered by the absence of an objective, easily obtained, and valid measure of patients' severity of illness. Because laboratory data are objective and computerized in most of our nation's hospitals, a system utilizing such data, if shown to discriminate between patients of differing expected resource use, could prove most helpful in examining possible inequities in prospective payment system hospital payment. At a major teaching hospital, data were used from length of stay inlier patients in the 10 most frequent medical DRGs in the U.S. to develop and evaluate a severity of illness system called APACHE-L. APACHE-L uses the laboratory component of the original APACHE score. Whereas DRGs explained 20% of the variation in length of stay for the top ten DRGs, APACHE-L explained up to an additional 14% of the variation. For ancillary resource use, DRGs explained 10% of the variance, and APACHE-L explained up to an additional 15%. Diagnosis-related group-specific analyses demonstrated that the amount of resource use variance explained by APACHE-L varied widely depending on the DRG (from R2 = .00 for DRG 410, chemotherapy; to R2 = .38 for DRG 320, kidney and urinary tract infections, age greater than 17 years with complications or comorbidities). The APACHE-L score, which is objective and readily available in our nation's hospitals, shows considerable promise as a severity of illness adjuster for a subset of DRGs.

Age Factors↗

The U.S. and Canadian health care systems: views of resident physicians.

OBJECTIVE: To evaluate U.S. and Canadian resident physicians' views about their health care systems. DESIGN: Self-administered questionnaire survey in 1989. PARTICIPANTS: Senior family medicine and internal medicine residents in Canada and in ten geographically representative American states. MAIN RESULTS: American and Canadian residents had similar levels of professional satisfaction and almost universally agreed on the ethical obligation to provide care to persons of all social circumstances, but U.S. residents were more likely to perceive a serious access problem in their country (75% compared with 18%) and to think that current controls on the medical profession interfere with patient care (81% compared with 58%; P less than 0.001). In addition, U.S. residents were more likely than Canadian residents to believe that primary care salaries were too low (78% compared with 38%) and that salaries of medical subspecialists (57% compared with 17%) and surgeons (85% compared with 28%) were too high. In general, residents preferred their own country's predominant health care system. Whereas 87% of U.S. physicians supported private fee-for-service health care, 85% of Canadian physicians supported government-funded national health insurance. Nonetheless, 42% of U.S. physicians supported and only 17% strongly opposed national health insurance as an alternative approach. About two thirds of respondents from both countries opposed a salaried national health service. CONCLUSIONS: American residents perceived greater problems with access, overall intrusions into medical practice, and fee disparities than did their Canadian counterparts. They preferred private fee-for-service health care, but few strongly opposed government-funded national health insurance as an alternative approach to the health care needs of the United States.

Attitude of Health Personnel↗

A national study of AIDS and residency training: experiences, concerns, and consequences.

OBJECTIVE: To examine residents' experiences in the care of patients with the acquired immunodeficiency syndrome (AIDS), and to examine factors that may influence their attitudes about such care. DESIGN: Cross-sectional, self-administered questionnaire survey conducted in 1989. PARTICIPANTS: All senior internal medicine and family medicine residents in ten geographically representative states who were identified through the 1986 National Residency Matching Program. MEASUREMENTS AND MAIN RESULTS: Seventy-four percent of residents reported that patients with AIDS accounted for 5% or more of general medicine admissions, and 50% of residents reported that they were currently following one or more human immunodeficiency virus (HIV)-infected patients in their continuity clinics. Among residents who had provided ambulatory care to patients with AIDS, 77% felt that it was an excellent educational experience, and among those who planned to do general primary care in their future practices, 74% planned on providing primary care to patients with AIDS. However, 61% expressed concerns about the adequacy of their training in AIDS ambulatory care. A greater amount of contact with outpatients who had AIDS, but not with inpatients who had AIDS, was associated with residents' intending to provide AIDS primary care in their future practices. Among all residents, 23% reported that, if given a choice, they would not provide care to any patients with AIDS, and 23% reported that they would not work in an area with a high prevalence of AIDS because of concern about contracting the syndrome. Nine percent of residents reported that they had been exposed to a blood-contaminated needlestick from an HIV-seropositive patient. CONCLUSIONS: Although most residents have substantial contact with inpatients and outpatients with AIDS, most still find their education in AIDS ambulatory care to be deficient. A minority of residents would prefer not to care for patients with AIDS. Residency curricula should include training and experience in ambulatory AIDS care, explicitly address negative attitudes toward caring for patients with AIDS, and include programs to reduce needlestick exposures.

Acquired Immunodeficiency Syndrome↗

Subjective and objective assessment of enalapril in primary Raynaud's phenomenon.

1. The efficacy and acceptability of enalapril were assessed in a double-blind, randomised, placebo controlled cross-over study in 21 patients with primary Raynaud's phenomenon. 2. Skin temperature was assessed by thermocouples in response to a 15 degrees C cold water challenge as an index of digital blood flow. 3. Following enalapril there were no significant changes in the number and severity of Raynaud's attacks, and no subjective benefit from treatment as measured by visual analogue scales, 5 point rating scales, and skin temperature response to cold challenge when compared with placebo. 4. Enalapril in a dose of 20 mg daily is ineffective in the management of primary Raynaud's phenomenon.

Adult↗

Regular source of ambulatory care and access to health services.

BACKGROUND: To examine why people lack a regular source of ambulatory care (RSAC) and explore whether this commonly used access measure accurately identifies population subgroups at risk for barriers to continuity care. METHODS: Using data from a 1986 national telephone survey, we performed a content analysis of subjects' verbatim reports as to why they lacked an RSAC (n = 5,748). RESULTS: The 16.4 percent of respondents who lacked an RSAC gave the following reasons: 1) financial problems, 8 percent; 2) local resource inaccessibility, 5 percent; 3) not wanting a regular source of ambulatory care, 61 percent; and 4) transitory loss of their regular source of ambulatory care, 18 percent. However, some sociodemographic subgroups reported substantially more problems with access barriers, and these disparities were often not detected by the global measure, RSAC. The poor were not more likely than the non-poor to lack an RSAC (odds ratio [OR] = 0.8; 95% confidence interval, [0.6, 1.1]), but were much more likely to lack an RSAC for financial reasons (OR = 5.2 [2.6, 10.6]). Similarly, rural respondents were not more likely than urban dwellers to lack an RSAC, but were more likely to lack an RSAC because of local resource inaccessibility (OR = 5.8 [2.8, 11.9]). CONCLUSIONS: We conclude that the global measure, RSAC, is not an accurate indicator of whether population subgroups have access barriers to obtaining a source of continuity care.

Adolescent↗

Access to medical care for children and adolescents in the United States.

To evaluate access to health care for American children and adolescents, a telephone survey of a national random sample of households was conducted in which 2182 children 17 years or younger were studied. Approximately 10% had no medical insurance; 10% had no regular source of care; and 18% identified emergency rooms, community clinics, or hospital outpatient departments as their usual site of medical care. Children who were uninsured, poor, or nonwhite were less likely to have seen a physician in the past year (P less than .001), and uninsured children were less likely to have up-to-date immunizations. Logistic regression analyses revealed that poor, uninsured, or nonwhite children less frequently had a regular source of care; more frequently used emergency rooms, community clinics, and hospital outpatient departments as their regular providers; and more frequently encountered financial barriers to health care. Low-income or nonwhite children had much less access to care compared with children from more affluent or white families, independent of insurance status or health status.

Adolescent↗

Utilization of dental services: 1986 patterns and trends.

Data from the 1986 Access to Health Care Survey of the Robert Wood Johnson Foundation, a nationwide telephone survey, were used to provide information on changes and trends in dental utilization in the United States. Sixty-three percent of the respondents five years or older (N = 9,352) had had a dental visit within the past year. Being elderly, having lower socioeconomic status, and being black were independent risk factors for having fewer dental visits. Persons who had dental check-ups during the past year also demonstrated higher rates of other preventive health procedures (i.e., Pap smears, mammograms, breast examinations, and routine medical examinations). Among those without a dental visit within the past year, a financial barrier to receiving such care was reported by 12 percent of those surveyed, compared to 37 percent in 1976. We concluded that during the past decade there has been a continued trend toward increased dental visits and decreased financial problems relating to receiving dental care; however, the poor, ethnic minorities, and those with less education continue to have much lower rates of dental care utilization compared to the general population.

Adolescent↗

Vibrotactile sensation and response to nifedipine dose titration in primary Raynaud's phenomenon.

The clinical response to two doses of sustained-release nifedipine was assessed during a double-blind, randomized, placebo-controlled trial in 22 patients with primary Raynaud's phenomenon. Nifedipine at doses of 20 mg and 40 mg daily reduced the mean number of attacks by 40% compared with placebo with no significant differences between the two doses in the number of attacks or their severity. Unwanted effects were more common and more persistent with the higher dose of nifedipine. Fingertip vibrotactile thresholds measured at 31.5 and 125 Hz were unchanged by treatment with nifedipine. There was, however, a correlation between the pretreatment threshold at 125 Hz and the response to treatment with nifedipine, the most favorable responses occurring in patients with the lowest thresholds.

Adolescent↗

Out-of-pocket payments and use of care for serious and minor symptoms. Results of a national survey.

To assess the effect of out-of-pocket payments on use of care for symptoms that physicians consider serious and meriting care, and for minor symptoms, we evaluated data from a 1986 national survey. Among 5412 adults reporting one or more medical visits in the last year, 18.8% had experienced serious symptoms within the previous 30 days, among whom 63.0% sought care, while 31.3% had experienced minor symptoms, among whom 42.8% sought care. Subjects who had paid $15 or less out of pocket for their last medical visit were more likely to seek care for a serious symptom (67.1% vs 52.6%) or for a minor symptom (47.1% vs 32.2%) than were those who paid $30 or more. Large out-of-pocket payments are associated with significant reductions in use of care for both serious and minor symptoms.

Adult↗

Inequities in health services among insured Americans. Do working-age adults have less access to medical care than the elderly?

To determine whether groups other than the elderly and the uninsured have difficulty obtaining access to medical care, we studied 7633 adults nationwide. As we expected, the insured had much greater access than the uninsured, but among the insured there were substantial disparities in access to care. Insured adults of working age were 3.5 times as likely (95 percent confidence interval, 2.7 to 4.4) as the elderly to have needed supportive medical services (including medications and supplies) but not to have received them, and 3.4 times (2.3 to 4.4) as likely to have had major financial difficulties because of illness. Among insured, working-age adults, the poor were 4.4 times (3.5 to 5.3) as likely as those who were not poor to have needed supportive services but not to have received them, and 5.2 times (3.6 to 6.8) as likely to have had major financial problems because of illness. Apart from insurance status and income, blacks were 1.7 times (1.1 to 2.2) as likely as whites to have needed supportive services but not to have received them. Hispanics with a medical illness were 2.2 times (1.3 to 3.2) as likely as whites not to have seen a physician within the past year. We conclude that insured, working-age adults have less access to medical care than the elderly, and that poor, black, or Hispanic persons in this group are at risk for even greater problems with access to care. Current policy strategies are unlikely to improve the ability of these groups to obtain care.

Adult↗

Who gets screened for cervical and breast cancer? Results from a new national survey.

To evaluate the adequacy of cervical and breast cancer screening in the United States, data were analyzed from a 1986 nationwide telephone survey (n = 4659). Papanicolaou smears within the recommended three- to five-year interval were reported by 79% of women aged 20 years or older. Within the preceding year, 55% of women aged 40 years or older had breast examinations performed by physicians, and 20% of women aged 50 years or older had mammograms. Women who were uninsured or lower in socioeconomic status were less likely to have each of these three preventive measures, independent of the age, health status, and frequency of physician visits of the respondent. In addition, women aged 50 years or older were less likely to have had Papanicolaou smears (63% vs 89%) and breast examinations (52% vs 68%) than those women aged 20 to 49 years. These findings suggest that women who are older, uninsured, or lower in socioeconomic status are at an increased risk for not receiving preventive care, and that screening mammography, although more common than a decade ago, is still markedly underused.

Adult↗

Are polymorphonuclear leukocytes an abnormal finding in cerebrospinal fluid? Results from 225 normal cerebrospinal fluid specimens.

Although it is often claimed that the presence of a single polymorphonuclear leukocyte (PMN) in the cerebrospinal fluid (CSF) is abnormal, recently some have suggested that a few PMNs are occasionally present in cytocentrifuged differential cell counts of normal CSF. We examined 225 consecutive normal CSF specimens to determine how frequently PMNs occur in normal CSF and to identify factors associated with the presence of PMNs. One or more PMNs were present in 73 cases (32%). The number of CSF PMNs was strongly correlated with the degree of CSF blood contamination and the hematologic PMN count. Of the 163 specimens having 25 red blood cells or less per cubic millimeter, only eight (5%) had three or more PMNs, and these outliers had abnormally high hematologic PMN counts. Of the 36 specimens having 100 red blood cells or more per cubic millimeter, 17 (47%) had six or more PMNs. We conclude that the number of PMNs found on cytocentrifuged differential cell counts is highly dependent on the degree of CSF blood contamination and the patient's hematologic PMN count and that even minimal blood contamination can result in the presence of one to two PMNs in normal CSF.

Cerebrospinal Fluid↗