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Brian Hurwitz

Publications and source records attributed to Brian Hurwitz.

At least 19 recordsLinked to original sources
PubMed2007

Lineages of language and the diagnosis of asthma.

Asthma, wheeze and cough are words with profoundly differing histories, etymologies and meanings. Yet their medical usage today is clustered around the diagnosis and management of a single disease. Hitherto, asthma has been a clinical diagnosis but wheeze, cough and asthma now are key terms in cross-cultural questionnaire surveys which seek information on asthma prevalence. In this essay, we examine differences in the linguistic properties of terms likely to be relevant to interpreting large-scale variations in asthma prevalence uncovered by questionnaires. We show how etymologically distinct each term is: while asthma and cough each share semantic congruencies across six European languages, albeit for different reasons, there is less congruence across these languages for the term wheeze. The medical meanings of all three terms contrast with meanings revealed by the non-medical usage of all three terms, which are highly figurative. Linguistic considerations indicate that interpretation of international questionnaires that phrase questions in terms of cough, asthma and their derivatives are likely to be more reliable for the purposes of comparing prevalence than those which deploy questions phrased in terms of wheeze.

Asthma↗
PubMed2005

Ethnic variations in incidence of asthma episodes in England & Wales: national study of 502,482 patients in primary care.

BACKGROUND: Recent studies have demonstrated marked international variations in the prevalence of asthma, but less is known about ethnic variations in asthma epidemiology within individual countries and in particular the impact of migration on risk of developing asthma. Recent within country comparisons have however revealed that despite originating from areas of the world with a low risk for developing asthma, South Asian and Afro-Caribbean people in the UK are significantly (3x and 2x respectively) more likely to be admitted to hospital for asthma related problems than Whites. METHODS: Using data from the Fourth National Study of Morbidity Statistics in General Practice, a one-percent broadly representative prospective cohort study of consultations in general practice, we investigated ethnic variations in incident asthma consultations (defined as new or first consultations), and compared consultation rates between those born inside and outside the UK (migrant status). Logistic regression models were used to examine the combined effects of ethnicity and migration on asthma incident consultations. RESULTS: Results showed significantly lower new/first asthma consultation rates for Whites than for each of the ethnic minority groups studied (mean age-adjusted consultation rates per 1000 patient-years: Whites 26.4 (95%CI 26.4, 26.4); South Asians 30.4 (95%CI 30.3, 30.5); Afro-Caribbeans 35.1 (95%CI 34.9, 35.3); and Others 27.8 (27.7, 28.0). Within each of these ethnic groups, those born outside of the UK showed consistently lower rates of incident asthma consultations. Modelling the combined effects of ethnic and migrant status revealed that UK-born South Asians and Afro-Caribbeans experienced comparable risks for incident GP consultations for asthma to UK-born Whites. Non-UK born Whites however experienced reduced risks (adjusted OR 0.82, 95%CI 0.69, 0.97) whilst non-UK born South Asians experienced increased risks (adjusted OR 1.33, 95%CI 1.04, 1.70) compared to UK-born Whites. CONCLUSION: These findings strongly suggest that ethnicity and migration have significant and independent effects on asthma incidence. The known poorer asthma outcomes in UK South Asians and Afro-Caribbeans may in part be explained by the offspring of migrants experiencing an increased risk of developing asthma when compared to UK-born Whites. This is the first study to find heterogeneity for incident asthma consultations in Whites by migrant status.

Adult↗
PubMed2005

Scientific evaluation of community-based Parkinson's disease nurse specialists on patient outcomes and health care costs.

OBJECTIVE: To determine the effects of community based nurses specialising in Parkinson's disease on health outcomes and healthcare costs. DESIGN: Two year randomised controlled trial in 438 general practices in nine randomly selected health authority areas of England. PARTICIPANTS: 1859 patients with Parkinson's disease identified by the participating general practices. MAIN OUTCOME MEASURES: Survival, stand-up test, dot in square test, bone fracture, global health question, PDQ-39, Euroqol, and healthcare costs. RESULTS: After two years 315 (17.3%) patients had died, although mortality did not differ between those who were attended by nurse specialists and those receiving standard care from their general practitioner (hazard ratio for nurse group v control group 0.91, 95% confidence interval 0.73 to 1.13). No significant differences were found between the two groups for the stand-up test (odds ratio 1.15, 0.93 to 1.42) and dot in square score (difference -0.7, -3.25 to 1.84). Scores on the global health question were significantly better in patients attended by nurse specialists than in controls (difference -0.23, -0.4 to -0.06), but no difference was observed in the results of the PDQ-39 or Euroqol questionnaires. Direct costs for patient health care increased by an average of pound2658 during the study, although not differentially between groups: the average increase was pound266 lower among patients attended by a nurse specialist (- pound981 to pound449). CONCLUSIONS: Nurse specialists in Parkinson's disease had little effect on the clinical condition of patients, but they did improve their patients' sense of wellbeing, with no increase in patients' healthcare costs.

Adult↗
PubMed2005

Topical antibiotics for acute bacterial conjunctivitis: Cochrane systematic review and meta-analysis update.

BACKGROUND: Uncertainty remains about the extent to which findings from our previously published systematic review and meta-analysis of double-blind, randomised controlled trials of topical antibiotics compared with placebo in the management of patients with acute bacterial conjunctivitis treated in secondary care outpatient settings are generalisable to the management of the condition in primary care settings. We updated our review, undertaking searches, methodological assessment, data extraction and analysis according to a pre-defined protocol. In addition to the previous three included studies, we identified two additional double-blind primary care trials, one which compares fusidic acid gel with placebo gel and one which compares chloramphenicol eye drops with placebo eye drops in children. Meta-analyses of clinical and microbiological remission data reveal that topical antibiotics are of benefit in improving early (days 2-5) clinical (relative risk [RR] = 1.24, 95% confidence interval [CI] = 1.05 to 1.45) and microbiological (RR = 1.77, 95% CI = 1.23 to 2.54) remission rates; later (days 6-10) data reveal that these early advantages in clinical (RR = 1.11, 95% CI = 1.02 to 1.21) and microbiological cure rates are reduced (RR 1.56, 95% CI = 1.17 to 2.09), but persist. Most cases of acute bacterial conjunctivitis resolve spontaneously. While topical antibiotics are associated with significantly improved rates of early (days 2-5) clinical remission, this benefit is marginal for later remission (days 6-10).

Acute Disease↗
PubMed2003

House dust mite avoidance measures for perennial allergic rhinitis: a systematic review of efficacy.

Perennial allergic rhinitis is a common chronic disorder that results most frequently from sensitivity to house dust mites. National and international guidelines for the management of allergic rhinitis recommend that house dust mite avoidance measures be considered in all patients with house dust mite-provoked rhinitis. To assess the benefit and harm of measures designed to reduce house dust mite exposure in the management of house dust mite-sensitive allergic rhinitis, published and unpublished randomised controlled trials were systematically searched. A methodological assessment of trial quality was conducted using the Cochrane approach. Four trials satisfied the inclusion criteria, all of which were small and judged to be of poor quality. The results indicate that, when compared with controls, significant reductions of allergen load can be achieved by physical and chemical means, but there is little evidence at present that these reductions translate into sustained improvements in clinical outcomes. No serious adverse effects were reported from the interventions.

Adolescent↗
PubMed2002

House dust mite barrier bedding for childhood asthma: randomised placebo controlled trial in primary care [ISRCTN63308372].

BACKGROUND: The house dust mite is the most important environmental allergen implicated in the aetiology of childhood asthma in the UK. Dust mite barrier bedding is relatively inexpensive, convenient to use, and of proven effectiveness in reducing mattress house dust mite load, but no studies have evaluated its clinical effectiveness in the control of childhood asthma when dispensed in primary care. We therefore aimed to evaluate the effectiveness of house dust mite barrier bedding in children with asthma treated in primary care. METHODS: Pragmatic, randomised, double-blind, placebo controlled trial conducted in eight family practices in England. Forty-seven children aged 5 to 14 years with confirmed house dust mite sensitive asthma were randomised to receive six months treatment with either house dust mite barrier or placebo bedding. Peak expiratory flow was the main outcome measure of interest; secondary outcome measures included asthma symptom scores and asthma medication usage. RESULTS: No difference was noted in mean monthly peak expiratory flow, asthma symptom score, medication usage or asthma consultations, between children who received active bedding and those who received placebo bedding. CONCLUSIONS: Treating house dust mite sensitive asthmatic children in primary care with house dust mite barrier bedding for six months failed to improve peak expiratory flow. Results strongly suggest that the intervention made no impact upon other clinical features of asthma.

Adolescent↗
PubMed2002

Effects of community based nurses specialising in Parkinson's disease on health outcome and costs: randomised controlled trial.

OBJECTIVE: To determine the effects of community based nurses specialising in Parkinson's disease on health outcomes and healthcare costs. DESIGN: Two year randomised controlled trial. SETTING: 438 general practices in nine randomly selected health authority areas of England. PARTICIPANTS: 1859 patients with Parkinson's disease identified by the participating general practices. MAIN OUTCOME MEASURES: Survival, stand-up test, dot in square test, bone fracture, global health question, PDQ-39, Euroqol, and healthcare costs. RESULTS: After two years 315 (17.3%) patients had died, although mortality did not differ between those who were attended by nurse specialists and those receiving standard care from their general practitioner (hazard ratio for nurse group v control group 0.91, 95% confidence interval 0.73 to 1.13). No significant differences were found between the two groups for the stand-up test (odds ratio 1.15, 0.93 to 1.42) and dot in square score (difference -0.7, -3.25 to 1.84). Scores on the global health question were significantly better in patients attended by nurse specialists than in controls (difference -0.23, -0.4 to -0.06), but no difference was observed in the results of the PDQ-39 or Euroqol questionnaires. Direct costs for patient health care increased by an average of 2658 pounds sterling during the study, although not differentially between groups: the average increase was 266 pounds sterling lower among patients attended by a nurse specialist (-981 pounds sterling to 449 pounds sterling ). CONCLUSIONS: Nurse specialists in Parkinson's disease had little effect on the clinical condition of patients, but they did improve their patients' sense of wellbeing, with no increase in patients' healthcare costs.

Adult↗
PubMed2002

Safer medicines management in primary care.

Errors in the medicines management process represent an important source of iatrogenic harm in primary care. Most errors result from underlying systems-based problems that are amenable to intervention and potentially preventable. In this paper, we seek to identify the frequency of medication-related morbidity in primary care, understand the underlying systemic reasons that increase risk of medication-related errors and iatrogenic harm, and suggest strategies for improving the safety of medicines management.

Drug Interactions↗
PubMed2002

Erring and learning in clinical practice.

This paper discusses error type their possible consequences and the doctors who make them. There is no single, all-encompassing typology of medical errors. They are frequently multifactorial in origin and use from the mental processes of individuals; from defects in perception, thinking reasoning planning and interpretation and from failures of team-working omissions and poorly executed actions. They also arise from inadequately designed and operated healthcare systems or procedures. The paper considers error-truth relatedness, the approach of UK courts to medical errors, the learning opportunities which flow from error recognition and the need for personal and professional self awareness of clinical fallibilities.

Humans↗
PubMedDate not supplied

Ethnic variations in UK asthma frequency, morbidity, and health-service use: a systematic review and meta-analysis.

BACKGROUND: The frequency of asthma varies between countries, and may also vary between ethnic groups in more geographically confined areas. We sought evidence of such ethnic variations in the UK for asthma frequency, morbidity, and health-services use, and to understand possible reasons for any differences. METHODS: We searched MEDLINE, EMBASE, CINAHL, PSYCHInfo, PREMEDLINE, HEALTHSTAR, Cambridge Register of Conference Abstracts, the Dissertation and Thesis Database, and the National Registry of Research. Additionally, we searched the bibliographies of reports identified and websites of health authorities, and contacted experts in this discipline. Our main outcomes were comparisons of asthma rate, morbidity, and health-services use. We did meta-analyses using random-effects models. FINDINGS: 13 studies contained relevant data. All prevalence studies were of children and showed that south Asian children had a lower frequency of symptoms suggestive of asthma compared with black and white children (pooled rate of history of wheeze in the previous 12 months: south Asians 9.6% [95%CI 8.0-11.2%], black people 16.2% [12.8-19.6%], white people 14.6% [11.5-17.8%]). The pooled frequency of clinician-diagnosed asthma in children followed a similar pattern (south Asians 7.6% [3.7-11.4%], black people 15.0% [3.5-26.5%], white people 10.6% [4.6-16.7%]. However, relative to white people, the risk of admission for asthma in children and adults was higher for south Asians (odds ratio 2.9 [2.4-3.4]) and black people (2.1 [1.8-2.5]). INTERPRETATION: The differences in admission are not explained by differences in asthma frequency between groups; they could relate to ethnic variations in asthma severity, differences in health-seeking behaviour, or difficulties in accessing high-quality primary care services.

Asia, Southeastern↗