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Biomedical subjects

B Arroll

Publications and source records attributed to B Arroll.

At least 19 recordsLinked to original sources
PubMed2001

Evidence databases, the Internet, and general practitioners: the New Zealand story.

AIM: To determine self-reported access to and use of the Internet and the Cochrane Library by general practitioners (GPs) in New Zealand. METHODS: A national cross sectional postal and fax survey of randomly selected GPs. RESULTS: A total of 381 of 459 eligible GPs returned completed questionnaires (83%). The mean age of this sample was 45.7 years (SD 8.6) and average years in general practice was 15.7 years (SD 8.8 years). 74% (277) were male and 77% (289) in full-time practice. Internet access was present in 40% (95% CI 36-46%) of practices and 76% (72-81%) of GP's homes. The majority, 56% (51-61%), of GPs had used the Internet with regard to a patient. Younger GPs (<35 years old OR = 2.69, 95% CI 1.10-6.60) and male GPs (OR 1.72, 95% CI 1.02-2.90) were significantly more likely to report use of the Internet with respect to patients. 42% (95% CI 37-47%) of GPs were aware of the Cochrane Library but only 15% (11-19%) had used it. Those in group practice were more likely to be aware of the Cochrane database (adjusted OR 1.85, CI 1.09-3.12). CONCLUSIONS: Internet use is prevalent among GPs. Solo practitioners, older GPs and female GPs are least likely to avail themselves of this resource. Although half of GPs knew about Cochrane, a minority used it. Access and use of evidence databases can be improved in New Zealand. Strategies to assist those least likely already to use Cochrane may help our collective efforts towards evidence based practice.

Adult↗
PubMed2001

Rehabilitation after arthroscopic meniscectomy: a critical review of the clinical trials.

We reviewed the literature on patient management following arthroscopic meniscal surgery. A critical appraisal of the literature produced 8 randomized controlled trials evaluating the use of non-steroidal anti-inflammatory drugs or various forms of physiotherapy and pain control. Different treatments and outcome measures precluded meta-analysis. The limited evidence suggests that this is a relatively pain-free procedure with rapid recovery, and that in most cases simple analgesia in the first 1-2 days following surgery and a well-planned home-based exercise program should be sufficient. It is possible that routine daily non-steroidal anti-inflammatory drugs post-operatively for 3-6 weeks may enhance recovery rates. One study found that physiotherapy was beneficial for regaining muscle strength and on pain assessment but this did not translate into functional improvement. Descriptive studies are required to ascertain the types and duration of treatments being offered to patients after arthroscopic meniscectomy. Further research is needed to perform well-designed studies of current treatments that take into account predisposing factors and their impact on outcome, including use of prerandomization and real-life functional outcome measures.

Arthroscopy↗
PubMed2000

General practitioner management of upper respiratory tract infections: when are antibiotics prescribed?

AIM: To assess General Practice (GP) description and management of upper respiratory tract infections (URTI), including conditions under which they prescribe antibiotics. METHOD: A telephone survey of a randomised sample of Auckland GPs. RESULTS: There was a 61% response rate. 82 of the 100 GPs interviewed agreed that most patients presenting with URTI expected antibiotics. Persistent symptoms and indication of specific infection (tonsillitis, otitis media, sinusitis, pharyngitis, purulent sputum) were common reasons for prescribing. Patients travelling overseas, expecting or requesting antibiotics and prior use of over-the-counter (OTC) medications increased antibiotic prescribing-rates. Most GPs (95%) issued as-needed prescriptions on occasion; 13% did this often. Amoxicillin and amoxicillin/clavulanic acid were most commonly used. Despite wide-ranging antibiotic use for URTI (0 to 90%), only 6% of GPs felt they prescribed more antibiotics than others. CONCLUSIONS: The results suggest over-prescription is common-place, but use of as-needed prescriptions to reduce antibiotic use is encouraging. Exploration of patient expectations in the consultation may assist in decreasing prescribing rates.

Anti-Bacterial Agents↗
PubMed2000

Problem gamblers: do GPs want to intervene?

AIM: To survey GPs' attitudes towards problem gamblers and knowledge to successfully intervene. METHODS: 100 GPs, randomly selected for gender and geographical distribution, were anonymously surveyed by questionnaire through the Royal New Zealand College of General Practitioners. RESULTS: 80 GPs responded (80% of those surveyed). There was strong support (85%) for problem gambling being within a GP's mandate, for involvement in treatment of problem gambling (72%) and for their having a role in supporting a family where a member has a gambling problem (80%). There was less confidence in: raising the issue of gambling with patients (53%), in knowledge of resources (38%) and in having the necessary training to intervene (19%). CONCLUSIONS: GPs see problem gambling as a legitimate role for their intervention, however, they have concerns around their competency and knowledge of resources. The provision of undergraduate and postgraduate training may assist to remove barriers to an accepted role in primary health.

Attitude of Health Personnel↗
PubMed2000

Antibiotics for the common cold.

BACKGROUND: The common cold is caused by viruses which cannot be helped by antibiotics. OBJECTIVES: The objective of this review was to assess the effects of antibiotics for the common cold. SEARCH STRATEGY: We searched the Cochrane Controlled Trials Register, MEDLINE, EMBASE, the Family Medicine Database, and reference lists of articles, and we contacted principal investigators. The most recent search was in December 1998. SELECTION CRITERIA: Randomised trials comparing any antibiotic therapy with placebo in acute upper respiratory tract infections. DATA COLLECTION AND ANALYSIS: Both reviewers independently assessed trial quality and extracted data. MAIN RESULTS: Main results: Seven trials involving 2056 people aged between six months and 49 years were included. The overall quality of the included trials was variable. People receiving antibiotics did not do better in terms of cure or improvement than those on placebo (odds ratio 0.95, 95% confidence interval 0.70 to 1.28 fixed effects model). One study found a significant benefit for antibiotics compared with placebo for runny nose (clear or purulent). The only other study to evaluate purulent nasal discharge found no significant benefit for antibiotics. Only one study reported work time lost with 22% of those on antibiotic treatment and 25% of those on placebo but this was not significant. Patients treated with antibiotics had a significant increase in side effects (odds ratio 2.72, 95% confidence interval 1.02 to 7.27, random effects model). REVIEWER'S CONCLUSIONS REVIEWERS' CONCLUSIONS: There is not enough evidence of important benefits from the treatment of upper respiratory tract infections with antibiotics and there is a significant increase in adverse effects associated with antibiotic use.

Anti-Bacterial Agents↗
PubMed2000

Oral pentoxifylline for treatment of venous leg ulcers.

BACKGROUND: Healing of venous leg ulcers is improved by the use of compression bandaging but some venous ulcers do not respond to compression therapy. Pentoxifylline, a drug which helps blood flow, has been used to treat venous leg ulcers but to date there has been no systematic review. OBJECTIVES: To assess the effects of pentoxifylline ('Trental 400') for treating venous leg ulcers, when compared with placebo, or in comparison with other therapies, in the presence or absence of compression therapy. SEARCH STRATEGY: We searched the Cochrane Peripheral Vascular Diseases and Wounds Groups specialised registers (date of search August 1999), and reference lists of relevant articles. We hand searched relevant journals and conference proceedings, and contacted Hoechst (the manufacturer of the drug) and experts in the field. SELECTION CRITERIA: Randomised trials comparing pentoxifylline with placebo or other therapy in the presence or absence of compression, in patients with venous leg ulcers. DATA COLLECTION AND ANALYSIS: Details from eligible trials were extracted and summarised by one reviewer using a coding sheet. Data extraction was independently verified by one other reviewer. MAIN RESULTS: Nine trials involving 572 adults were included. The quality of trials was variable. Eight trials compared pentoxifylline with placebo; in five of these trials patients received compression therapy. In one trial pentoxifylline was compared with defibrotide in patients who also received compression. By pooling eight trials that compared pentoxifylline with placebo (with or without compression) it was found pentoxifylline was more effective than placebo in terms of complete healing or significant improvement (relative risk for healing with pentoxifylline compared with placebo 1.41, 95% confidence interval 1.19 -1.66). Pentoxifylline and compression was more effective than placebo and compression (relative risk for healing with pentoxifylline 1.30, 95% confidence interval 1.10-1.54). Combination of similar trials using compression obtained a number needed to treat (NNT) of 7 (95%confidence interval 4-17). A comparison between pentoxifylline and defibrotide found no difference in healing rates. More adverse effects were reported in the pentoxifylline group, although this was not statistically significant (relative risk for adverse effects with pentoxifylline 1. 25, 95% confidence interval 0.87-1.80). Nearly half of the adverse effects were reported to be gastro-intestinal. REVIEWER'S CONCLUSIONS: Pentoxifylline appears to be an effective adjunct to compression bandaging for treating venous ulcers. There was no cost effectiveness data available and healthcare commissioners may therefore conclude that it not be considered a routine adjunct. Pentoxifylline in the absence of compression may be effective for treating venous ulcers in the absence of compression, although the evidence should be cautiously interpreted. The majority of adverse effects are likely to be tolerated by patients, and gastrointestinal disturbances (indigestion, diarrhoea and nausea) are the most frequent adverse effect.

Administration, Oral↗
PubMed1999

Improving the health behaviours of elderly people: randomised controlled trial of a general practice education programme.

OBJECTIVES: To establish the effect of an educational intervention for general practitioners on the health behaviours and wellbeing of elderly patients. DESIGN: Randomised controlled trial with 1 year follow up. SETTING: Metropolitan general practices in Melbourne, Australia. SUBJECTS: 42 general practitioners and 267 of their patients aged over 65 years. INTERVENTION: Educational and clinical practice audit programme for general practitioners on health promotion for elderly people. MAIN OUTCOME MEASURES: Patients' physical activity, functional status, self rated health, immunisation status, social contacts, psychological wellbeing, drug usage, and rate of influenza vaccination. Primary efficacy variables were changes in outcome measures over 1 year period. RESULTS: Patients in the intervention group had increased (a) walking by an average of 88 minutes per fortnight, (b) frequency of pleasurable activities, and (c) self rated health compared with the control group. No change was seen in drug usage, rate of influenza vaccination, functional status, or psychological wellbeing as a result of the intervention. Extrapolations of the known effect of these changes in behaviour suggest mortality could be reduced by 22% if activity was sustained for 5 years. CONCLUSIONS: Education of the general practitioners had a positive effect on health outcomes of their elderly patients. General practitioners may have considerable public health impact in promotion of health for elderly patients.

Aged↗
PubMed1999

Attitudes to recertification measured over time using a validated semantic differential scale.

OBJECTIVES: This study was designed to measure the acceptability of the Royal New Zealand College of GPs' Recertification programme to the GPs in the programme. DESIGN: Questionnaire study of a stratified random sample of members of the RNZCGP. METHOD: A semantic differential attitude scale was developed and validated. The scale was administered to 300 GPs before the Recertification programme began and repeated with 100 of these GPs 18 months later. After 3 years of the programme the questionnaire was administered to the original 300 GPs. RESULTS: Baseline data showed reasonable acceptance of the concept of recertification but by 18 months there was a significant deterioration in the way the programme was perceived and this did not change over 3 years. Many GPs were not convinced of the value of the programme.

Attitude of Health Personnel↗
PubMed1998

The impact of acne: a study of adolescents' attitudes, perception and knowledge.

AIM: To assess adolescent students' attitudes to, perceptions and knowledge of acne and to assess the effect of acne on daily living. METHOD: Students from Auckland sixth and seventh form classes were selected from ten Auckland secondary schools using a randomisation process which ensured proportional representation by socioeconomic group and gender. Eight hundred and forty-seven students completed a written questionnaire on the subject of acne vulgaris and had their acne examined. Their acne was graded using a modification of the Leeds system which determines severity on the basis of number, extent and nature of the skin lesions. RESULTS: Acne was present in 91% of males and 79% of females. Students' perceptions of the severity of their acne were significantly related to objective clinical assessment (p=0.00001). Severity of acne determined the extent of embarrassment (p<0.00001) and the lack of enjoyment of and participation in social activities (p<0.00002). These analyses were significant for both males and females. Students had misconceptions regarding the causes of acne. Parental occupation and ethnic group were related to knowledge of treatment for acne. CONCLUSION: Acne causes personal and social difficulties for a large number of adolescent students. There is a need for all students to have access to appropriate information and health services so that the social and psychological consequences of acne are minimised.

Acne Vulgaris↗
PubMed1998

Changes in CME uptake caused by reaccreditation.

AIM: To determine whether the requirements of the reaccreditation programme of the Royal New Zealand College of General Practitioners (RNZCGP) have changed the amount and type of continuing medical education (CME) done by the participating general practitioners. METHOD: A written questionnaire was sent to 200 randomly selected general practitioners doing the RNZCGP reaccreditation programme. RESULTS: The response rate was 82%. Although almost half the general practitioners had been motivated to spend more time on CME by the reaccreditation programme, for most this was a small increase. However, there was a trend towards selection of higher quality courses and towards increasing the time spent on educational activities more likely to result in changed behaviour. CONCLUSION: The RNZCGP reaccreditation programme is having beneficial effects on the CME activities of many of the participating general practitioners.

Accreditation↗
PubMed1998

The green prescription study: a randomized controlled trial of written exercise advice provided by general practitioners.

OBJECTIVES: The purpose of this study was to determine whether written advice from general practitioners increases physical activity among sedentary people more than verbal advice alone. METHODS: Sedentary patients (n = 456) received verbal advice on increasing physical activity and were then randomized to an exercise prescription (green prescription) group or a verbal advice group. RESULTS: The number of people engaging in any recreational physical activity at 6 weeks increased substantially, but significantly more so in the green prescription group. Also, more participants in the green prescription group increased their activity over the period. CONCLUSIONS: A written goal-oriented exercise prescription, in addition to verbal advice, is a useful tool for general practitioners in motivating their parents to increase physical activity.

Adult↗
PubMed1997

The validity of general practitioners' self assessment of knowledge: cross sectional study.

OBJECTIVE: To determine whether general practitioners can make accurate self assessments of their knowledge in specific areas. DESIGN: 67 general practitioners completed a self assessment of their level of knowledge over a variety of topics using a nine point semantic differential scale. An objective assessment of their knowledge was then made by administering true-false tests on two of the topics: thyroid disorders and non-insulin dependent diabetes. The study was repeated with another group of 60 general practitioners, using sexually transmitted diseases as the topic. SETTING: General practices in New Zealand. SUBJECTS: Random sample of 67 general practitioners in Auckland. MAIN OUTCOME MEASURE: Test scores for self assessment and for actual knowledge. RESULTS: Correlations between self assessments and test scores were poor for all three topics studied (r = 0.19 for thyroid disorders, 0.21 for non-insulin dependent diabetes, 0.19 for sexually transmitted diseases). CONCLUSIONS: As general practitioners cannot accurately assess their own level of knowledge on a given topic, professional development programmes that rely on the doctors' self perceptions to assess their needs are likely to be seriously flawed.

Clinical Competence↗
PubMed1997

Referral letters: are form letters better?

An essential mode of contact between general practitioners (GPs) and hospital staff is the referral letter. This must be clear and concise with sufficient information to aid the GP, the consultant and the patient. In order to ensure this, a proposal was made for the use of a structured or standardized referral letter: a form letter. This report shows that form letters were shorter than typed letters. Form letters were also proven to contain more information than nonform letters.

Correspondence as Topic↗
PubMed1997

Green prescriptions: attitudes and perceptions of general practitioners towards prescribing exercise.

BACKGROUND: This qualitative study was part of a broader randomized controlled trial which showed that written exercise advice (green prescription) from a general practitioner (GP) increased physical activity levels among sedentary patients more than verbal advice alone over a 6-week period. AIM: To assess the attitudes and perceptions of GPs towards the practice of writing green prescriptions. METHOD: Participating GPs (n = 25) discussed attitudes and perceptions towards green prescriptions through structured focus groups within 2 weeks of the end of recruitment for the main study. RESULTS: The GPs felt comfortable discussing and prescribing exercise with and to patients. They preferred giving green prescriptions to giving verbal advice alone, and felt they were a valuable tool to formalize and document mutually agreed exercise goals. Time constraints were identified as a major barrier to the widespread implementation of green prescriptions. Appropriate training, resource materials, and patient follow-up mechanisms were identified as important elements for successful implementation of the strategy. CONCLUSION: Overall, the GPs were very positive about the green prescription concept, believing it to be beneficial for patients and achievable within general practice.

Attitude of Health Personnel↗
PubMed1996

Screening for colorectal cancer: a survey of New Zealand general practitioners.

AIM: To determine the attitudes and reported behaviours of New Zealand general practitioners concerning colorectal cancer screening and diagnosis with special consideration of the use of faecal occult blood tests. METHOD: A postal survey of a random sample of 400 New Zealand general practitioners. RESULTS: The response rate to the survey was 63%. Most of the respondents did not support a screening programme for average risk patients but did support screening in high risk groups. General practitioners favoured a screening programme offered by themselves rather than a centrally organised screening programme. A majority of respondents agreed that there was a lack of clear guidelines and a need for education regarding screening for bowel cancer. CONCLUSION: Guidelines for colorectal cancer screening are required for New Zealand general practitioners. There appears to be a need for medical education concerning screening for colorectal cancer in particular and screening and prevention in general.

Adult↗