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Biomedical subjects

D Goldberg

Publications and source records attributed to D Goldberg.

At least 55 records · Page 3Linked to original sources

Cross-cultural validity of the Amritsar Depression Inventory and the General Health Questionnaire amongst English and Punjabi primary care attenders.

BACKGROUND: In order to estimate the health needs of cultural groups, the cross-cultural validity of instruments requires investigation in distinct cultural rather than ethnic or racial groups. METHOD: We screened 'Punjabi' and 'English' primary care attenders in South London (UK), using the General Health Questionnaire (GHQ-12), an English origin instrument, and the Amritsar Depression Inventory (ADI), which was developed in the Punjab in India. The criterion measure was the Clinical Interview Schedule (CIS-R). We calculated the validity coefficients, optimal thresholds and the area under the 'Receive Operating Characteristic' curve to compare cross-cultural performance. We identified items on each questionnaire that contribute to performance of the instruments. RESULTS: The GHQ-12 has high validity coefficients in both cultural groups. The ADI performs as well amongst English subjects, but among Punjabis it is poorer than the GHQ-12. Among Punjabis who have been resident in the UK for over 30 years, the ADI performs no better than chance. Few items on the ADI or the GHQ are strongly predictive of case status. CONCLUSIONS: The GHQ-12 shows good validity in both cultures. Expressions of distress may change due to acculturation. 'Culturally sensitive' screening instruments need to reflect this. Further work might attend to the changing expressions of distress following migration.

Adult↗

Detection of psychological distress by practice nurses in general practice.

BACKGROUND: The general practitioner (GP) has traditionally been the first port of call for people with psychiatric morbidity but increasingly other members of the primary care team see the patients first, particularly practice nurses. The numbers and roles of practice nurses have expanded greatly over the past decade and it is important that practice nurses are able to recognize patients with psychiatric morbidity. This paper reports a study to determine the abilities of 24 practice nurses to detect psychiatric morbidity in patients attending their clinics. METHODS: Twenty-four practices were randomly selected from 41 practices recruited from South London and Kent. One nurse per practice took part in the study. Patients were asked to complete a 12-item General Health Questionnaire (GHQ-12) while waiting for their appointment with the practice nurse. Following their consultation, the practice nurse rated the patients' level of psychological distress on a five-point rating scale. RESULTS: The response rate of patients was 97% (N= 1710). The GHQ case rate was 36%. The mean detection rate by practice nurses when identifying significant distress was 16% (between nurse variation, 0% to 61%). The mean specificity was 96% (variation 77% to 100%). A second analysis, changing the nurse criterion to recognition of distress increased the mean sensitivity rate to 58% (variation 31% to 84%) but the mean specificity rate decreased to 66% (variation 26% to 95%). CONCLUSIONS: These results demonstrate that practice nurses' caseloads include a high proportion of patients with psychiatric morbidity and that agreement with the GHQ classification of psychiatric morbidity is modest. Therefore, training in detection will be crucial for the nurses.

Adolescent↗

Risk of HIV transmission from patients to surgeons in the era of post-exposure prophylaxis.

The HIV prevalence, among patients either undergoing, or with the potential to undergo, surgery were estimated using data from unlinked anonymous HIV surveys of patients in Glasgow hospitals during 1992-1997 in order to quantify the risk of surgeons acquiring HIV occupationally in the era of post-exposure prophylaxis (PEP) availability. A range of prevalence rates was applied to data on other factors influencing risk; these comprised, i) the probability of a percutaneous injury from a sharp instrument used on an HIV infected patient resulting in HIV transmission, ii) the number of injuries sustained and iii) whether or not PEP was administered. On the basis of, for example, a surgeon sustaining three percutaneous injuries over 12 months and not taking PEP after each, the annual risks ranged from 1 in 2,000,000 for urological/renal surgeons to 1 in 200,000 for those performing general surgery/ENT/gynaecological procedures. The administration of PEP after each injury would reduce these rates to 1 in 10,000,000 and 1 in 1,000,000 respectively. The risk of surgeons acquiring HIV occupationally in a city which has an HIV prevalence typical of most urban areas in the UK, is 'minimal' or 'negligible'. In the context of such low risk and our limited knowledge of the adverse effects of PEP, the risk assessment to decide whether or not to give PEP should be well informed and consistent. Current guidelines to help physicians and affected healthcare workers in their decision making need to be improved.

Adolescent↗

Prevalence of hepatitis C virus infection among injecting drug users in Glasgow 1990-1996: are current harm reduction strategies working?

OBJECTIVES: To determine the prevalence of HCV antibodies among injecting drug users and to gauge the effectiveness of needle/syringe exchange in preventing the transmission of HCV infection. METHODS: Between 1990-1994 and in 1996, annual cross-sectional surveys of injecting drug users in Glasgow were conducted. In order to ensure as representative a sample as possible, the 1949 respondents were recruited from both 'in-treatment' and 'out-of treatment' settings. Injectors were interviewed about their risk behaviours for blood-borne viruses and provided a saliva sample which was initially tested, anonymously, for HIV antibodies, and subsequently tested for hepatitis C infection. RESULTS: Among 1949 injectors, the prevalence of salivary antibodies, indicative of hepatitis C viraemia, was 61%(95%, confidence interval (CI) 59%-63%): the estimated prevalence of serum antibody positivity was 72%. Length of injecting, year of commencing drug injecting and the number of times in prison were predictive of antibody positivity. Thirty-one per cent of injectors who commenced their injecting after 1992, following the full establishment of needle/syringe exchange in the city, were salivary antibody positive, and the majority of their infections were acquired outside the prison setting. Respondents who began injecting after the introduction of needle/syringe exchange in the city were significantly less likely to test HCV antibody positive than those who commenced injecting prior to the advent of needle/syringe exchange, after adjusting for length of injecting career. CONCLUSION: The prevalence of HCV among injectors in Glasgow has decreased during the era of needle/syringe exchange. However, there is evidence to suggest that the incidence of infection remains high. Since the prevalence of hepatitis C viraemia among the city's injecting population is extremely high, ongoing transmission is inevitable unless more effective interventions are identified and implemented urgently.

Adolescent↗

Prevalence of HIV among pregnant women in Dundee 1988-1997: evidence to gauge the effectiveness of HIV prevention measures.

OBJECTIVES: During November 1988-July 1990, an HIV prevalence survey of pregnant women in Dundee, which used a combined voluntary diagnostic testing and voluntary unlinked anonymous approach, revealed a rate of 0.3%, the highest recorded prevalence among such a population in the U.K. at the time. To determine if, and why, any changes in HIV prevalence had occurred during the early to mid 1990s, further studies were conducted. METHODS: During January 1993-December 1997, antenatal patients of, and women undergoing therapeutic termination of pregnancy at, Ninewells Hospital, Dundee, were offered a diagnostic HIV antibody test. For those declining, residual sera from rubella specimens were tested for HIV antibodies using an unlinked anonymous approach which did not necessitate the securement of informed consent. Information about injecting drug use was obtained from all women and linked to their HIV test results. RESULTS: For all pregnant women, a significant decline in HIV prevalence (P<0.05) from 0.3% (19/6228) during 1988-1990 to 0.12% (22/17899) during 1993-1997 was observed. For those who injected drugs, prevalence decreased significantly (P<0.05) from 27.5% (11/40) to 7% (6/85), while among women who had never injected drugs prevalence decreased slightly, but not significantly (P>0.05), from 0.13% (8/6188) to 0.09% (16/17814).Prevalence in the non-injectors who reported no sexual intercourse with an injector was low at 0.04% (8/17682) during 1993-1997. No significant trends in HIV prevalence were seen over the 5 years up to 1997. CONCLUSION: The decline in HIV prevalence among pregnant women in Dundee during the early to mid-1990s can be explained predominantly by the control of HIV transmission among the city's injectors, and from them to the wider heterosexual population. It is likely that interventions designed to reduce needle/syringe sharing among injectors have been successful. It is imperative that the preventive effort is not allowed to be weakened.

Abortion, Induced↗

The public health applications of unlinked anonymous seroprevalence monitoring for HIV in the United Kingdom.

BACKGROUND: In order to monitor the epidemiology of human immunodeficiency virus (HIV), integrated national programmes of unlinked anonymous (blinded) HIV sero-surveys have taken place in the UK since 1990. METHODS: The programmes comprise multi-centre surveys primarily using specimens gathered routinely for screening groups of patients. All specimens are irreversibly unlinked from patient identifiers before being tested. RESULTS: The surveys have met their prime aim of providing at low cost minimally biased estimates of current HIV prevalence and trends in sentinel populations. The surveys have remained acceptable to professionals and the public, being successfully implemented without breech of their founding principles. The findings have had major public health applications, have influenced HIV policy and funding, been used for monitoring the spread of HIV, for targeting and evaluating health promotion and improving projections of severe HIV disease. The surveys have detected substantial prevalence rises and under-diagnosis of HIV which would otherwise have been unrecognised. The programmes' value is being increased by sub-typing HIV-1 isolates, capturing additional demographic information to detect spread among minority groups. The same specimens are used for monitoring other infections (initially hepatitis A, B and C). CONCLUSIONS: Monitoring HIV and other infections through unlinked anonymous HIV surveillance has become an integral essential part of national HIV and AIDS surveillance. Although it has unique applications the value of unlinked anonymous surveillance is maximized when used in conjunction with behavioural data, information from HIV and AIDS reporting, and behavioural data and surveillance for other sexually transmitted infections.

Confidentiality↗

Findings from London's Mental Health': a service in crisis.

The King's Fund published its second London Commission in July 1997, and had produced a report 'London's Mental Health' in preparation for this, consisting of the most complete account ever published of the present state of the mental health services. They are found to be in a state of crisis, unable to cope with the very high levels of demand seen in the deprived inner city areas. There are now too few beds in the National Health Service to deal with the number of patients who need to be admitted, and too few residential places in the community to take those ready for discharge. The report considers the reasons for the high demand, and finds London to contain the six most socially deprived districts in the country, the highest unemployment rates, and double the number of persons living in single person accommodation. Emergency care is from the Accident and Emergency Departments, and the complete range of community care is not available anywhere. Remedies for these problems include adjustments to the resource allocation formulae, removal of the difficulties preventing new capital building in the public sector, and removing the divide between health and social services.

Health Care Rationing↗

Active surveillance of hepatitis C infection in the UK and Ireland.

AIM: To investigate the prevalence, distribution, and clinical details of paediatric hepatitis C virus (HCV) infection in the UK and Ireland. METHODS: Active monthly surveillance questionnaire study coordinated through the British Paediatric Surveillance Unit, to all consultant paediatricians in 1997 and 1998. RESULTS: A total of 182 HCV infected children were reported from 54 centres and by paediatricians from eight different specialties. In 40 children HCV was acquired through mother to child transmission (MTC children); 142 were infected by contaminated blood products (n = 134), organ transplantation (n = 2), needles (n = 4), or unknown risk factor (n = 2). Intravenous drug use was the risk factor for 35 mothers of MTC children. Twelve children were coinfected with HIV and four with HBV. Recent serum aspartate aminotransferase or alanine aminotransferase values were at least twofold greater than the upper limit of normal in 24 of 152 children; this occurred in five of 11 HIV coinfected children. Liver histology, available in 53 children, showed normal (7%), mild (74%), moderate (17%), or severe (2%) hepatitis. Twenty eight children had received therapy with interferon alfa. CONCLUSION: Most current paediatric HCV infection in UK and Ireland has been acquired from contaminated blood products, and most children are asymptomatic. There is a need for multicentre trials to inform clinical practice and development of good practice guidelines in this area. Long term follow up of this cohort of HCV infected children is planned to help determine the natural history over the long term of HCV acquired during infancy and childhood.

Child↗

Quality of life in myopia.

BACKGROUND: The safety and predictability of refractive surgery for all degrees of myopia is now becoming established. It is therefore appropriate to evaluate whether there is a patient driven demand for such treatments and, if so, to establish guidelines for its provision within the National Health Service (NHS). METHODS: A comparative study was designed to assess the effect of degree of myopia on quality of life ("high" (n = 30) -10.00D, worse eye; "moderate" (n = 40) -4.00 to -9.75D, worse eye; "low" (n = 42) <-4. 00D, worse eye) compared with a group of patients with keratoconus (n = 30) treated by optical correction. Data collection included binocular logMAR visual acuity, Pelli-Robson low contrast letter sensitivity, questionnaires to assess subjective visual function (VF-14) and effect on quality of life (VQOL), and semi-structured interviews. RESULTS: There were no significant differences in any of the measures between patients with a high degree of myopia and those with keratoconus, or between those with a low and those with a moderate degree of myopia. However, those with a high degree of myopia had highly significantly poorer logMAR, VF-14, and VQOL scores than those with low and moderate myopia (p<0.001). Interview data supported these findings with patients with a high degree of myopia and those with keratoconus reporting that psychological, cosmetic, practical, and financial factors affected their quality of life. CONCLUSION: Compared with low and moderate myopia, patients with a high degree of myopia experience impaired quality of life similar to that of patients with keratoconus. Criteria should therefore be identified to enable those in sufficient need to obtain refractive surgical treatment under the NHS.

Adolescent↗

Unlinked anonymous HIV study of hospital patients and general practice attenders in Glasgow, 1991-1997.

AIM: To determine whether HIV is spreading from injecting drug users and homosexual/bisexual males into lower risk heterosexual populations in Glasgow, Scotland, and to pilot a method of monitoring HIV prevalence which involves testing routine biochemistry specimens. METHODS: An unlinked anonymous HIV testing study of hospital patients and general practice attenders was conducted during January 1992 to December 1997. Testing was performed on routine biochemistry specimens from patients aged 16-49 years attending two hospitals with catchment areas covering the north and the east of the city. RESULTS: 78,260 specimens were tested in the study period and no patient objected to their samples being tested anonymously. HIV prevalence rates among male and female subjects were 0.63% and 0.01%, respectively; the large difference in prevalence resulted, in part, from the inclusion of HIV infected haemophiliac patients who attended one of the hospitals. Prevalence among male general practice patients ranged between 0.1% and 0.2%, while that for male patients attending surgical or surgically related specialties was 0.1%. CONCLUSIONS: The prevalence data indicate that HIV has not seeded from the high risk groups into the wider heterosexual population, and that the risk of a surgeon acquiring HIV occupationally is extremely low in a city which has an HIV prevalence similar to or greater than that seen in most other parts of the United Kingdom. Large numbers of residual specimens from busy biochemistry laboratories can be processed for unlinked anonymous testing without interfering with the laboratories' routine functions. This survey approach might be best suited to monitoring HIV trends in developing countries with relatively high prevalence rates and where transmission is principally heterosexual.

Adolescent↗

Expenditure on mental health care by English health authorities: a potential cause of inequity.

BACKGROUND: The York resource allocation formula includes a calculation of the amount needed to purchase mental health services equitably in each health authority in England. However, the amount which is actually spent on services is at the discretion of the authority. AIMS: To compare expenditure on mental health services with allocation, and test the hypothesis that differences between them are to the disadvantage of services in deprived areas. METHOD: A comparison of routine expenditure and allocation data, and linear regression modelling of the ratio of expenditure to allocation. RESULTS: The ratio of expenditure to allocation varies widely. Relative underspending occurs more frequently in deprived areas, although not in the four inner-London health authorities. CONCLUSIONS: The intentions of the York formula are not achieved in practice. The implications of the formula for mental health should be made explicit to health authorities, and shortfalls in mental health expenditure relative to allocation should be justified at a local level.

Costs and Cost Analysis↗

GENESiS: creating a composite index of the vulnerability to anxiety and depression in a community-based sample of siblings.

There is considerable evidence for a unitary and dimensional view of the genetic vulnerability to symptoms of anxiety and depression. The GENESiS (Genetic Environmental-Nature of Emotional States in Siblings) Study aims to use a multivariate approach to detect genetic loci that contribute to individual differences in this vulnerability dimension. The study used the UK General Practice Research Framework to generate a community-based sample of siblings. Questionnaire measures of anxiety/depression included the short form of the neuroticism scale from the revised Eysenck Personality Questionnaire (EPQ-N), the General Health Questionnaire (GHQ-12), and the anxious arousal and high positive affect subscales from the Mood and Anxiety Symptoms Questionnaire (MASQ-AA and MASQ-HPA). Genetic model-fitting of 2658 unselected sibships provided evidence for a single common genetic (familial) factor that accounted for a substantial proportion of the genetic variances and covariances of these four measures. Using the parameter estimates of this model, we constructed a composite index of this common genetic factor. This index, which has a sib correlation of 0.22, will be used as a quantitative phenotype in the molecular genetic phase of GENESiS.

Adult↗

Ultrasound investigation of the rotator cuff after computed arthrotomography coupled to bursography.

OBJECTIVES: To evaluate the diagnostic performance of ultrasound rotator cuff imaging after injection of contrast medium into the glenohumeral joint and subacromial bursa. PATIENTS AND METHODS: Twenty-eight patients underwent ultrasonography before and after injection into the glenohumeral joint and subacromial bursa of a mixture of iodinated contrast medium and lidocaine solution. Findings were compared with those from computed tomography of the joint and bursa. RESULTS: Sixteen 16 (16/28, 57%) post-contrast ultrasound scans revealed or confirmed rotator cuff lesions. For supraspinatus and infraspinatus lesions, there were three false-negatives and no false-positives. Three false-negatives were recorded for subscapularis lesions. All false-negatives occurred both before and after the contrast medium injections. CONCLUSION: Injecting contrast medium into the glenohumeral joint and subacromial bursa improves the diagnostic yield of rotator cuff ultrasonography. We suggest that ultrasonography be performed after injections of drugs into the shoulder structures, particularly the subacromial bursa.

Acromioclavicular Joint↗