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Surveillance of work-related disorders in Australia using general practitioner data.

OBJECTIVES: The focus of this paper is to compare the main findings regarding work-related problems managed in general practice with those of other data sources in the occupational and public health arenas that provide some information on work-related disorders in Australia, in order to examine the implications for surveillance and prevention. METHODS: Data on work-related disorders managed in general practice were obtained from a larger study of general practice activity that involved a cluster random sample of all significantly active general practitioners in Australia from 1998 to 2000. These data were compared with other Australian datasets containing information on work-related disorders. RESULTS: Despite a predominance of musculoskeletal conditions in all the data sources, general practitioner data provided a different picture of work-related disorders in the community to workers' compensation information from the National Data Set of Compensation-based Statistics (NDS) and the limited information on work-related disorders available from other studies of general practice and emergency departments. The mix of conditions was different in many aspects, and diseases were much less common in the NDS. CONCLUSIONS: General practitioner data supplement data provided by other sources, particularly the NDS, and make an important contribution to filling some of the gaps in information about work-related diseases and more minor work-related injuries. IMPLICATIONS: General practitioners could prove a useful supplementary source of data on work-related disorders, but the optimal content of, and method for obtaining, these data is not clear.

Accidents, Occupational↗

An audit of general practitioner requests for pelvic ultrasound: analysis of referral patterns and outcome.

OBJECTIVES: 1. To assess the information supplied by general practitioners on the gynaecological ultrasound request form and to determine how this information influences the interpretation of scans; and 2. To examine the influence of scans on the subsequent management of patients both by general practitioners and, where relevant, by hospital gynaecologists. DESIGN: Retrospective analysis of gynaecological ultrasound requests made by general practitioners. Postal questionnaire and assessment of outcome according to general practitioners' records and, where appropriate, the hospital notes. SETTING: A London teaching hospital gynaecological ultrasound department and associated general practices. SUBJECTS: Four hundred ninety-eight women referred by general practitioners for a gynaecological ultrasound scan over a one year period (1990). RESULTS: The 498 requests for gynaecological ultrasound scans included 472 primary diagnostic referrals. Seventy-one percent of general practitioners replied to the questionnaires. Overall, 46% of the scans were normal, but the proportion of normal scans fell to 21% if the date of the last menstrual period and a pregnancy test result were included on the form. Forty per cent of women scanned subsequently were referred for hospital care. CONCLUSIONS: General practitioners would appear to use the ultrasound service in a rational way and therefore there can be no justification for not allowing them open access. The positive diagnostic yield can be further improved if time is taken to supply simple relevant information which may be facilitated by a specific request form.

Abortion, Threatened↗

General medical and pharmacy claims expenditures in users of behavioral health services.

OBJECTIVE: To quantify the magnitude of general medical and/or pharmacy claims expenditures for individuals who use behavioral health services and to assess future claims when behavioral service use persists. DESIGN: Retrospective cost trends and 24-month cohort analyses. SETTING: A Midwest health plan. PARTICIPANTS: Over 250,000 health plan enrollees during 2000 and 2001. MEASUREMENTS: Claims expenditures for behavioral health services, general medical services, and prescription medications. MAIN RESULTS: Just over one tenth of enrollees (10.7%) in 2001 had at least 1 behavioral health claim and accounted for 21.4% of total general medical, behavioral health, and pharmacy claims expenditures. Costs for enrollees who used behavioral health services were double that for enrollees who did not use such services. Almost 80% of health care costs were for general medical services and medications, two thirds of which were not psychotropics. Total claims expenditures in enrollees with claims for both substance use and mental disorders in 2000 were 4 times that of those with general medical and/or pharmacy claims only. These expenditures returned to within 15% of nonbehavioral health service user levels in 2001 when clinical need for behavioral health services was no longer required but increased by another 37% between 2000 and 2001 when both chemical dependence and mental health service needs persisted. CONCLUSIONS: The majority of total claims expenditures in patients who utilize behavioral health services are for medical, not behavioral, health benefits. Continued service use is associated with persistently elevated total general medical and pharmacy care costs. These findings call for studies that better delineate: 1) the interaction of general medical, pharmacy, and behavioral health service use and 2) clinical and/or administrative approaches that reverse the high use of general medical resources in behavioral health patients.

Adolescent↗

Generalized tonic-clonic seizures in patients with complex-partial seizures: natural history and prognostic relevance.

Clinical course and long-term seizure prognosis were studied in 155 patients with complex-partial seizures during a follow-up of 10.1 +/- 1 (SD) years. In 79% of the patients generalized tonic-clonic seizures were recorded, mostly within the first 3 years of epilepsy but occurring as late as 20 years after the onset of epilepsy. Seizure control was defined as complete absence of all seizures, including auras, for a minimum of 2 years. Seizure control occurred in 20 of 32 patients (63%) with complex-partial seizures only and in 76 of 123 patients (62%) with complex-partial seizures and generalized tonic-clonic seizures. The onset of the epilepsy with generalized tonic-clonic seizures or complex-partial seizures did not influence the therapeutic outcome despite differences in their natural history. A family history of epilepsy and other generalized seizures (e.g., absence) were more frequent in patients with generalized tonic-clonic seizures at the onset of epilepsy. Seizure control was significantly lower (44%) in patients with a history of a maximum frequency of one or more generalized tonic-clonic seizures per month when compared to patients (79%) with a total of less than six generalized tonic-clonic seizures (p less than 0.05). The frequency of generalized tonic-clonic seizures is of predictive value for the seizure prognosis of patients with complex-partial seizures.

Carbamazepine↗

Seizure risk in offspring of parents with generalized versus partial epilepsy.

Genetic factors are commonly assumed to play a more important role in generalized than in partial epilepsy. This study tested this hypothesis by comparing risks of unprovoked seizures in offspring of individuals with generalized versus partial epilepsy. Overall, seizure incidence was no higher in offspring of persons with generalized epilepsy than in offspring of those with partial epilepsy. The number of affected offspring was about three times that expected from population incidence rates, regardless of whether the parent had partial or generalized epilepsy. For the subgroup of generalized cases with absence seizures, however, seizure incidence in offspring was about three times as high as for partial cases. The higher incidence in offspring of absence cases was only partly explained by a higher proportion of absence than partial cases with two factors associated with high risk in relatives, namely early age at onset and idiopathic epilepsy. Offspring of absence cases had higher risk than offspring of other cases not only for absence seizures, but for other seizure types as well, suggesting that absence epilepsy is not genetically distinct from other seizure types of epilepsy. These results suggest that the higher incidence sometimes observed in relatives of patients with generalized epilepsy is due to a small proportion of generalized cases with extremely high familial risks--most generalized epilepsies are no more likely than partial epilepsies to have a genetic basis.

Epilepsies, Partial↗

A randomized controlled trial of an asthma clinical pathway for children in general practice.

AIMS: To evaluate the effect of the implementation of an asthma clinical pathway on asthma in children in general practice. METHODS: A randomized, controlled trial involving 270 general practitioners. One group of general practitioners implemented the asthma clinical pathway for children (intervention group) and the control group continued with their usual asthma medical care management. The main outcome measures were admissions to hospital for asthma and attendance at the Children's Emergency Department. Compliance with the guidelines was assessed by examining asthma drug prescriptions. RESULTS: Admissions to hospital for asthma dropped 40% in the intervention group, by 33% in the control group and by 22% in general practitioners not participating in the trial. The differences between the intervention and control and between the intervention and non-participating general practitioners were not statistically significant. The decrease in attendance at the Children's Emergency Department decreased by 25%, 30% and 19%, respectively, but this was not statistically significant. There was a significant decrease in prescriptions for oral relievers, dry powder relievers in the under 6s, mast cell stabilizers and methylxanthines in both control and intervention groups. However, only for oral relievers was there a significant difference between the intervention group and control, with the decrease larger in the intervention group (p < 0.001). CONCLUSIONS: Admissions to hospital for asthma decreased, as did attendance at the Children's Emergency Department. Prescriptions for asthma medication changed in the direction anticipated with compliance with the asthma clinical pathway. However, we found no evidence within the study that implementation of the asthma clinical pathway by general practitioners resulted in lower morbidity than those general practitioners who did not implement the pathway. Possible explanations are that these general practitioners were already providing care according to the recommendations of the pathway, or that there was contamination of the control group by the intervention, or that the guidelines, although based on currently accepted recommendations, are ineffective.

Adolescent↗

Trends in general practitioner distribution from 1984 to 1989.

An analysis of the distribution of general practitioners by electorates during the six years 1984 to 1989 showed that the maldistribution of practitioners in Australia has worsened despite significant increases (26%) in total general practitioner numbers. One in five rural electorates had worse population-to-general-practitioner ratios in 1989 than in 1984. The changes in distribution of general practitioners ran counter to the changes in distribution of the population over the period studied. In 1984, the 38.7% of the population living in rural Australia was served by 33% of the nation's general practitioners. By 1989, more of the population (39.8%) lived in rural areas but they were served by a smaller proportion (32%) of the general practitioner workforce. It is clear that many urban electorates have fewer people per general practitioner than the most generous ideal ratios, while most rural electorates have more people per general practitioner than the least generous.

Australia↗

Molecular genetics of the RNA polymerase II general transcriptional machinery.

Transcription initiation by RNA polymerase II (RNA pol II) requires interaction between cis-acting promoter elements and trans-acting factors. The eukaryotic promoter consists of core elements, which include the TATA box and other DNA sequences that define transcription start sites, and regulatory elements, which either enhance or repress transcription in a gene-specific manner. The core promoter is the site for assembly of the transcription preinitiation complex, which includes RNA pol II and the general transcription fctors TBP, TFIIB, TFIIE, TFIIF, and TFIIH. Regulatory elements bind gene-specific factors, which affect the rate of transcription by interacting, either directly or indirectly, with components of the general transcriptional machinery. A third class of transcription factors, termed coactivators, is not required for basal transcription in vitro but often mediates activation by a broad spectrum of activators. Accordingly, coactivators are neither gene-specific nor general transcription factors, although gene-specific coactivators have been described in metazoan systems. Transcriptional repressors include both gene-specific and general factors. Similar to coactivators, general transcriptional repressors affect the expression of a broad spectrum of genes yet do not repress all genes. General repressors either act through the core transcriptional machinery or are histone related and presumably affect chromatin function. This review focuses on the global effectors of RNA polymerase II transcription in yeast, including the general transcription factors, the coactivators, and the general repressors. Emphasis is placed on the role that yeast genetics has played in identifying these factors and their associated functions.

RNA Polymerase II↗

General practitioners' training for, interest in, and knowledge of sports medicine and its organisations.

OBJECTIVES: To assess the training and interest of a group of general practitioners in the area of sport and exercise medicine, and the organisations representing the specialty. DESIGN: A postal questionnaire using a Likert scale in a previously piloted set of questions. SUBJECTS: 275 general practitioners registered with the Northampton Regional Health Authority. MAIN OUTCOME MEASUREMENTS: Responses to questions designed to assess training and interest in sport and exercise medicine. RESULTS: A response rate of 87.6% was achieved. It was found that 72.7% of the responding general practitioners felt inadequately trained to practice sport and exercise medicine. Some 76.0% would welcome more training and 36.4% felt that their undergraduate orthopaedic training was of no use in primary care. Many (63.6%) of the general practitioners believed that the current NHS cannot sustain sport and exercise medicine, and there was uncertainty as to whether it is currently a recognised specialty, although 60.4% felt that it should be. General practitioners listed lack of facilities (53.1%), lack of training (42.9%), and lack of time (38.2%) as the main problems in practicing sport and exercise medicine in primary care within the current NHS. CONCLUSIONS: General practitioners feel undertrained in sport and exercise medicine at both undergraduate and post-graduate level; they have a perceived need for more training and show an interest in the subject. There is scope for improving the value of undergraduate orthopaedic training. General practitioners wish to see sport and exercise medicine recognised as an NHS specialty but fear that this is not sustainable under current conditions. There is confusion among general practitioners about the current sport and exercise medicine organisations.

Adult↗

Contribution of general practitioner hospitals in England and Wales.

A survey of a one-in-seven sample of general practitioner hospitals in England and Wales, performed to determine the contribution they make to overall hospital work load and the attitudes of the general practitioners working in them, showed that 3% of acute hospital beds in England and Wales were in general practitioner hospitals, which provided initial hospital care for up to 20% of the population. Altogether 16% of general practitioners and 22% of consultants were on the staffs, and they coped with more than 13% of all casualties, 6% of operations, and 4% of x-ray examinations. Nearly a million casualties were treated at no cost to the National Health Service. Twenty new district general hospitals would be needed to cope with the work load currently dealt with by general practitioner hospitals. The results of this survey indicate that these smaller hospitals deal efficiently and cheaply with their work load, and that morale is high. General practitioner hospitals could have an important part to play in providing certain types of care, but there are no financial incentives to enable general practitioners to realise this potential fully.

Attitude of Health Personnel↗

The preregistration houseman in general practice.

During 1979-80 an experimental preregistration house physician post in general practice was conducted at Aldermoor Health Centre in Southampton in rotation with medical posts at Southampton General Hospital. Ten house physicians took part in the experiment that lasted for 19 months and each doctor spent two months in general practice. The house physicians settled quickly into general practice and found the experience both enjoyable and worth while. The hospital consultants, general practitioners, and the house physicians themselves thought that this was a valuable extension to preregistration education. The experiment raised several questions, some of which were specific to the type of rotation organised and others that were more fundamental to the whole concept of the preregistration house physician in general practice. If the experiment is to be repeated a longer period in general practice is strongly recommended. A full year rotation is suggested with four months each of surgery, medicine, and general practice.

Attitude of Health Personnel↗

Findings of a national survey of the role of general practitioners in the treatment of opiate misuse: extent of contact with opiate misusers.

With the recent unprecedented growth in the spread of drug misuse in the United Kingdom the role of the general practitioner has become more and more prominent, both in response to demands for treatment and as the focus of national policy on drug misuse. Although general practitioners may be the first contact, few data are available on the extent of their contact with drug misusers. A postal survey was carried out in mid-1985 of a 5% national sample of general practitioners in England and Wales concerning their role in and views on the treatment of opiate misusers, including the extent of their contact with such patients during a four week period. Of the 1166 general practitioners surveyed, 845 replied, a response rate of 72%. The results show that roughly one in five general practitioners in England and Wales attended an opiate misuser during this four week period, seeing an estimated 6000 to 9000 patients, one third of whom were "new" to the general practitioner. A cautious estimate of between 30,000 and 44,000 new cases of opiate misuse presenting to general practitioners in a year is suggested, with some adjustment necessary because of double counting. A wide variation in the prevalence of consultations among regional health authorities was found, and several of the regions with a high prevalence are outside the London area. The scale of contact thus confirms the importance of the general practitioner in the national response to drug misuse.

Family Practice↗

Findings of a national survey of the role of general practitioners in the treatment of opiate misuse: dealing with the opiate misuser.

Because there has been a substantial increase in the scale of drug misuse general practitioners have become increasingly concerned in responding to this problem. Little is known, however, about how general practitioners manage drug misusers. The findings from a national survey carried out in mid-1985 of a 5% random sample of general practitioners in England and Wales show the extent to which various actions were undertaken by general practitioners who reported on the consultation with the opiate misuser whom they last attended. In more than half of the cases the opiate misuser had been under the care of the general practitioners for this problem for at least six months. The findings indicate that most general practitioners refer these patients to specialist drug dependence clinics or to general psychiatric services but rarely to other agencies. Opiate drugs had been prescribed in nearly a third of cases. The rate of notification to the Home Office conforms with that in other studies and indicates a high degree of undernotification. More detailed study of general practitioners' activities in managing drug misusers is needed.

Drug Prescriptions↗

Findings of a national survey of the role of general practitioners in the treatment of opiate misuse: views on treatment.

An important component of government policy on services for drug misusers is to encourage general practitioners to take a more active role. There are, however, some indications that general practitioners regard drug misusers as undesirable patients, although no evidence is available. As part of a wider investigation of the role of general practitioners in the treatment of opiate misuse, a questionnaire, which was sent in mid-1985 to a 5% random sample of general practitioners in England and Wales, included a section designed to elicit their views on policy and treatment connected with opiate misuse. The results showed that although most general practitioners consider opiate misuse to be a priority concern for the Health Service, they also generally regard opiate misusers as especially difficult to manage, beyond their competence to treat, and less acceptable as patients than others in need of care. General practitioners who have qualified recently were somewhat less unfavourable in their views. These findings suggest that the effective implementation of government policy will require trying to modify general practitioners' attitudes and providing support for them.

England↗

District programme to reduce smoking: effect of clinic supported brief intervention by general practitioners.

By encouraging and supporting general practitioners to undertake brief intervention on a routine basis smokers' clinics could reach many more smokers than are willing to attend for intensive treatment. In a study with 101 general practitioners from 27 practices 4445 cigarette smokers received brief intervention with the support of a smokers' clinic, brief intervention without such support, or the general practitioners' usual care. At one year follow up the numbers of smokers who reported that they were no longer smoking cigarettes were 51 (13%), 63 (9%), and 263 (8%), respectively (p less than 0.005). After an adjustment was made for those cases not validated by urine cotinine concentrations the respective success rates were 8%, 5%, and 5%. Use of nicotine chewing gum was associated with higher self reported success rates. General practitioners providing supported brief intervention encouraged not only more smokers to use the gum but also more effective use; gum users in this group reported a success rate of 27% at one year. Compliance by the general practitioners in recording smoking state averaged 45%, and significantly higher success rates were reported by patients whose smoking state had been recorded. Brief intervention by general practitioners with the support of a smokers' clinic thus significantly enhanced success rates based on self reports. Better results might be obtained if general practitioners' compliance with the procedure could be improved and if they encouraged more of their patients to try nicotine gum. Collaboration of this kind between a smokers' clinic and local general practitioners could deliver effective help to many more smokers than are likely to be affected if the two continue to work separately.

Adult↗

Referral patterns to an ophthalmic outpatient clinic by general practitioners and ophthalmic opticians and the role of these professionals in screening for ocular disease.

Case notes of 1113 consecutive new patients referred to a consultant ophthalmologist at a district general hospital were reviewed to determine the source and efficacy of referrals and the current screening practices of general practitioners and ophthalmic opticians. General practitioners initiated referral in 546 cases (49%) and ophthalmic opticians referral in 439 (39%). Visual loss or visual disturbance was the most important single reason for referral (345 cases; 31%), followed by suspected glaucoma (145 cases; 13%), abnormalities of binocular vision (140; 12.5%), disorders of eyelids or ocular adnexa (127; 11%), and red eye (86; 8%). General practitioners referred many more patients with disorders of the eyelids and adnexa and ophthalmic opticians many more patients with suspected glaucoma. Ophthalmic opticians were far more likely than general practitioners to refer patients with suspected glaucoma correctly. A total of 180 patients (16%) were referred from ocular screening, in 149 cases by ophthalmic opticians and in 10 by general practitioners. Seventy patients had glaucoma or incomplete features of glaucoma, all of them referred by ophthalmic opticians. Of eight diabetic patients referred by ophthalmic opticians, three had asymptomatic disease and in two diabetes was diagnosed as a result of ocular screening. No patient was referred for asymptomatic diabetic retinopathy from screening by general practitioners. Ophthalmic opticians were more likely than general practitioners to diagnose retinopathy requiring photocoagulation. Use of a community based service to screen for glaucoma could save unnecessary consultant outpatient appointments. A similar service could facilitate detection of diabetic retinopathy at a stage when treatment is most effective.

Adolescent↗

Changing remuneration systems: effects on activity in general practice.

OBJECTIVE: To investigate the effects on general practitioners' activities of a change in their remuneration from a capitation based system to a mixed fee per item and capitation based system. DESIGN: Follow up study with data collected from contact sheets completed by general practitioners in one period before (March 1987) a change in their remuneration system and two periods after (March 1988, November 1988), with a control group of general practitioners with a mixed fee per item and capitation based system throughout. SETTING: General practices in Copenhagen city (index group) and Copenhagen county (control group). SUBJECTS: 265 General practitioners in Copenhagen city, of whom 100 were selected randomly from the 130 who agreed to participate (10 exclusions) and 326 general practitioners in Copenhagen county. MAIN OUTCOME MEASURES: Number of consultations (face to face and by telephone) and renewals of prescriptions, diagnostic and curative services, and specialist and hospital referrals per 1000 enlisted patients in one week. RESULTS: Of the 75 general practitioners who completed all three sheets, four were excluded for incomplete data. Total contact rates per 1000 patients listed rose significantly compared with the rates before the change index in the city (100.0 before the change v 111.7 (95% confidence interval 106.4 to 117.4 after the change) and over the same time in the control group (100.0 v 106.0), but within a year these rates fell (to 104.2(99.1 to 109.6) and 104.0 respectively). There was an increase in consultations by telephone initially but not thereafter. Rates of examinations and treatments that attracted specific additional remuneration after the change rose significantly compared with those before (diagnostic services, 138.1 (118.7 to 160.5) and 159.5 (137.8 to 184.7) and curative services 194.6 (152.2 to 248.9) and 194.8(152.3 to 249.2) for second and third data collections respectively) and with the control group (diagnostic services 105.3, 107.6 and curative services 106.0, 115.0) whereas referral rates to secondary care fell (specialist referrals 90.1 (80.7 to 100.6) and 77.0 (68.6 to 86.4) and hospital referrals 87.4 (71.1 to 107.5) and 68.4 (54.7 to 85.4] in doctors in the city. CONCLUSIONS: Introducing a partial fee for service system seemed to stimulate the provision of services by general practitioners, resulting in reduced referral rates. The concept of a "target income" which doctors aim at, rather than maximising their income seemed to play a part in adjustment to changing the system of remuneration.

Capitation Fee↗

Perinatal mortality rates in isolated general practitioner maternity units.

OBJECTIVE: To determine the perinatal mortality rate among normally formed, singleton babies with birth weights greater than or equal to 2500 g in Bath health district based on the intended place of delivery at the time of onset of labour or at the time of diagnosis of intrauterine death. DESIGN: The numbers of live births and stillbirths were collected monthly returns from the maternity units concerned. Deaths of infants aged less than or equal to 1 week were collected in the same returns. The intended place of delivery was confirmed at the monthly perinatal mortality meeting, during which maternal and fetal factors were discussed. SETTING: A rural health district of 400,000 population where one third of all deliveries occurred in seven isolated general practitioner maternity units, 8% in the integrated general practitioner unit, and the remainder in the consultant unit. SUBJECTS: All babies of women whose deliveries were booked in the district before the onset of labour or the diagnosis of intrauterine death, excluding twins, babies with lethal congenital malformations, and those less than 2500 g. MAIN OUTCOME MEASURES: Outcome of all deliveries and parity of mothers. RESULTS: 14,415 Deliveries were analysed. The perinatal mortality rate was 2.8/1000 births in the consultant unit (7950 deliveries), 4.8 in the isolated general practitioner units (5237 deliveries), and zero in the integrated general practitioner unit (1228 deliveries). Perinatal deaths attributable to asphyxia were more common in the isolated general practitioner units (1.5 per 1000) than the consultant unit (0.6 per 1000). The perinatal mortality rate among babies born to nulliparous women was 3.2/1000 births in the consultant unit and 5.7 in the isolated general practitioner units; for those born to multigravid women it was 2.4 and 4.2 respectively. CONCLUSIONS: The outcome of delivery was not influenced by parity. Both antenatal and intrapartum care were responsible for the higher perinatal mortality rate in the isolated general practitioner units. The integrated unit, which shared midwifery staff with the consultant unit, seemed to work well. Analysis by intended place of delivery at the time of onset of labour or diagnosis of intrauterine death suggested that the care given in isolated units needs to be improved, perhaps by better training of general practitioners and consultant supervision of antenatal care.

Birth Weight↗