Trauma support in your pocket

Background

Research indicates that technological approaches to the delivery of trauma-based support can help address structural and perceptual barriers. Yet, there is a lack of research on digital trauma support for children and adolescents. A systematic review of trauma apps identified 2 of 69 were for children, of which neither were evidence based. The aim of this project was to develop a trauma support app, co-designed with and for children and young people, based on a community-based group support program called Teaching Recovery Techniques.

Methods

In a series of workshops utilising the Design Studio method, a team of 7 young people between 14-20 years (3 boys and 4 girls) co-created the app. The team were recruited via youth organisations and self-reported having experienced (undisclosed) trauma. The techniques presented in the manual have been prioritised via stepwise consideration of content session by session. Prototypes were developed based on the generated ideas and shared with the team for feedback.

Results

Contributions of the young people to the design can be considered in three categories: mechanics, dynamics and aesthetics. Mechanics are the rules and interactions that inform the structure of the app. Dynamics refers to what the user can actually see, e.g. the outcome when the user presses a button. Aesthetics relate to the desirable emotional responses evoked in the user when they interact with the app. Beyond influence on basic aesthetics, such as fonts and symbols, the young people actively contributed to the user experience and gave great consideration to the emotional responses that could be evoked.

Conclusions

Young people with personal experience of trauma can actively engage in the development of a digital trauma intervention. Design Studio was an effective method for the co-creation process, enabling the generating and converging of young peoples’ ideas.

Key messages

• Co-creating an app for trauma support with youth with experience of trauma was a feasible process for both researchers and youth.

• Using Design Studio, a collaborative workshop method, facilitated the co-creative process, allowing the youth to contribute to the mechanics, dynamics and aesthetics factors of the app.

Moving a youth trauma support group online: participatory adaption, usability and pilot test

Background

Posttraumatic stress poses a significant threat to a young person’s development. Internet-based delivery could ameliorate barriers to care, but has mostly been tested with adults. This project aimed to (i) adapt the group intervention Teaching Recovery Techniques for online delivery through a participatory process, (ii) investigate the usability of the online format and (iii) pilot the new format.

Methods

Adaption recommendations were generated through participatory workshops with service users and providers, and consultation with an advisory panel with professionals and parents. Usability testing was conducted with intervention leaders (n = 5) and youth (n = 5). The public involvement in the project was assessed through a multi-method approach including behavioural observations, questionnaires and field notes. A pilot study (n = 14) is ongoing.

Results

The workshops focused on safety, participation and learning. Recommendations included an emergency response protocol, communication strategies, and guidance on intervention delivery. Whilst the advisory panel largely agreed, points of disagreement included workshop ideas around personalisation, where the panel conveyed the importance of consistency in manualised interventions. Usability testing highlighted the need for explicit guidance, particularly on safety processes.

Conclusions

Online delivery of trauma group support requires adaptions to ensure positive group dynamics, learning and safety. Yet, some adaptions resulting from the usability testing were also relevant to the original format, pointing to the need for more extensive use of usability testing across intervention manuals. The young people, parents and professionals involved in the project provided rich and varied perspectives, illustrating the value of broad stakeholder engagement. The ongoing pilot study explores the feasibility of online delivery, including youth perceptions of the format.

Key messages

• The varied perspectives in the participatory process highlighted the importance of broad stakeholder engagement for interventions to be equally evidence-based and adapted to the target population.

• The current pilot study explores the feasibility of online delivery, including youth perceptions of the format, in order to assess the potential for scale up.

Parents’ experiences of an antenatal visit being part of a home visiting program in deprived areas

Background

There are considerable health divides between residential areas in many Swedish cities. In more disadvantaged areas children grow up with poorer health outcomes than the country average. To meet the greater needs of children growing up in these areas through proportionate universalism, an extended home visiting program has been delivered. A novel part of this program has been the social worker and nurse later conducting home visits meeting the parents at the maternity care clinic before childbirth. The aim of this study was to explore parents’ experiences of that antenatal visit.

Methods

Semi-structured interviews were carried out with nine mothers and three fathers around 3 months postpartum. Nine of the participants were foreign-born and a translator was used for four of the interviews. The interviews were recorded and transcribed verbatim and the data was analyzed with thematic analysis with an inductive approach.

Results

The parents’ overall experiences are comprised in the main theme: ‘A feeling of security and care for the whole family'. This main theme is derived from the three following themes: 1) ‘Staff - a trustworthy source of information'. Parents perceived the staff as experienced and knowledgeable and appreciated obtaining information about practical things and about the Swedish system; 2) ‘Access to emotional support'. Several parents expressed the need for emotional support and valued that by meeting the staff they knew they had someone to turn to; 3) ‘Becoming familiar with the staff'. It was appreciated to know who will come to your home as this gave parents an increased sense of security.

Conclusions

Initiating the program through introducing home visiting staff at a scheduled antenatal visit benefited parents, by giving them useful information and social support. The visit also seems to be indirectly beneficial as it contributes to building trust for the staff and the rest of the program.

Key messages

• Initiating an extended home visiting program at a scheduled antenatal visit benefited parents, by giving them useful information and social support.

• Initiating an extended home visiting program at a scheduled antenatal visit contributed to building parents’ sense of trust for the staff and the rest of the program.

Ethical perspectives of the involvement of vulnerable populations in health research

Background

Public involvement in research has potential to transform public health research processes and outcomes, as well as contribute to sustainable collaborations between academia and the civil society. However, this all relies on public involvement being conducted in an ethical and inclusive way, especially when involving representatives from vulnerable populations.

Methods

In this empirically informed theoretical reflection, ethical perspectives on involvement of vulnerable populations in health research were explored using data collected within a public involvement evaluation project. By analysing observational and longitudinal qualitative data from research projects involving public representatives from vulnerable groups, ethical aspects were identified.

Results

Responsibility and decision-making appeared as important ethical aspects, where laws and regulations conflicted with involvement ideals. Similarly, reimbursement and recognition for public contributors became an ethical issue when facing legislation and bureaucracy, especially when involving children or refugees. Another ethical aspect concerned researchers’ concerns in balancing involvement and protection of vulnerable groups, especially when involving contributors living under unstable circumstances. Finally, effectively communicating around research and involvement in an accessible way, for contributors to be involved but not burdened, was a challenge for researchers.

Conclusions

Public involvement of vulnerable populations led to ethical challenges related to conflicting ideals and practical realities, including balancing involvement and protection of contributors. This highlighted a need for ethical guidance to support ethical decision-making and practice. The findings are used to guide the development of an ethical framework for decision-making in public involvement.

Key messages

• Researchers involving public contributors from vulnerable groups face ethical challenges which causes barriers to involvement.

• There is need for guidance on ethical decision-making for researchers involving representatives from vulnerable groups in research.

Navigating to support: experiences of forced migrant survivors of sexual and gender-based violence

Background

Sexual and gender-based violence (SGBV) is a severe human rights violation as well as a widespread global health problem with several negative consequences for emotional-psychological, sexual-reproductive and physical health. People who have experienced forced migration have a heightened exposure to SGBV, yet face several challenges to access support. Increased understanding of the help seeking processes of forced migrants who have experienced SGBV can help improve access to adequate support.

Methods

Interviews with thirty forced migrants in Sweden who have experienced SGBV have been analyzed using thematic analysis to generate an understanding of their help-seeking processes. The participants were recruited through a broad range of service providers, nongovernmental organizations and community sites.

Results

The disempowerment experienced after arrival to Sweden exacerbated health needs, increased the risk of violence, and prevented help seeking. Increased independency and more stable circumstances ameliorated the anticipated risks of seeking help and improved well-being. Activities and places providing a platform for social interactions as well as opportunities to acquire needed knowledge, such as language, were highlighted as valuable and could become a pathway to specialized services through a process of increased trust.

Conclusions

Help-seeking processes for SGBV can be promoted by early access to support services and social networks, as well as language classes and information about the society. Access to support can be facilitated by increased collaboration between non-violence-related service providers working close to forced migrants, such as language schools, and specialized services. The societal factors influencing help seeking processes are being further explored in an ongoing analysis of interviews with 29 service providers. The findings will inform the co-development of a new service model.

Key messages

'I felt like a human being' – An exploratory, multi-method study of refugee involvement in the development of mental health intervention research

The purpose of this study was to pilot and methodologically appraise innovative patient and public involvement (PPI) evaluation tools and to describe a case study of refugee involvement in the development of mental health intervention research. 'Refugee Advisors' were involved in the development of a randomised controlled trial protocol evaluating a brief group intervention for refugee children experiencing symptoms of post-traumatic stress in Sweden. During an 8-hour research meeting, observation and questionnaire data were collected using the Active Involvement of Users in Research Observation Schedule and Questionnaire, followed by a focus group discussion. The multi-method approach demonstrated good feasibility. There were clear examples of how the advisors influenced research development e.g. recruitment strategy, cultural brokerage among study group participants, outcome measure validation. The advisors described a perceived impact on the research, equality and acceptance, and knowledge gain. A sense of appreciation and empowerment was also interpreted. However, potential issues relating to the relevance of contributions and use of an interpreter were identified.

Implementation and maintenance of a community intervention for refugee youth with symptoms of PTSD

Background

Transferring effective health and wellbeing interventions into community-based settings is challenging, with many only ever implemented in the academic settings in which they were developed. Over the last few years, Teaching Recovery Techniques (TRT), a community-based intervention for refugee youth reporting symptoms of post-traumatic stress, has been scaled up across Sweden using the model of a distribution network pathway. This means the lead organisation works with a distribution organisation using the latter's existing network of implementing organisations. Often the distribution partner is a national organisation with many local member agencies. The model offers possibility for quick spread, but only allows for a low level of control at the local site level. Therefore, it is important to understand the factors and agents that have facilitated the implementation and maintenance of TRT from successful sites, in order to inform ongoing efforts to scale up the intervention.

Methods

Semi-structured interviews were conducted with personnel from 'successful' TRT sites, defined as having conducted at least two TRT groups and maintaining full delivery of the programme. Interview data were analysed using content analysis.

Results

Our results indicated that active networking and collaboration were key to successful maintenance of TRT delivery. Active recruitment strategies, resource availability and management, and careful integration of the interpreter were also raised as important factors.

Conclusions

Although the interviewed professionals represented successful sites, they remained dependent on informal networks and collaboration for programme delivery. The possibility of integrating TRT into a local stepped-care model for post-traumatic stress in refugee children and adolescents will be presented.

Key messages

Transferring effective health and wellbeing interventions into community-based settings is challenging, with many only ever implemented in the academic settings in which they were developed. Active networking and collaboration are key to successful maintenance of community interventions.

“Sometimes you need to go beyond the manual” – TRT facilitators’ experiences when refugee youth disclose suicidal ideation

Community-based mental health interventions offer a way to reach lots of people when there is a high level of need. However, it is important to consider safety aspects when pushing interventions out to community settings. Teaching Recovery Techniques (TRT) is a manualised intervention based on trauma-focused cognitive behavioural therapy for children and adolescents reporting symptoms of post-traumatic stress. Facilitators with no previous therapeutic experience or specialist training in psychiatry are eligible to deliver the intervention after a three-day training workshop. Although TRT was not developed for a specialist health care setting, a substantial number of refugee minors who receive the TRT programme in Sweden report severe high-risk psychiatric symptoms. The objective of this study was to examine how facilitators, without extensive psychological training, experience the intervention including the inbuilt safety protocol when participating refugee minors are in an unstable setting and disclose suicidal ideation. Semi-structured interviews were conducted with TRT facilitators. Data were analysed using systemic text condensation. Findings will be presented at the workshop.

Assessment tools for screening the mental health of refugee minors: from preschool to adolescence

The high number of asylum seekers in Sweden highlighted the need to develop and evaluate structured assessment tools for children and adolescents. In a series of studies, we aimed to explore the utility of (i) the Strengths and Difficulties Questionnaire with a trauma supplement of six items (SDQ-T) for preschool children; (ii) the Children's Revised Impact of Events Scale (CRIES-8) with unaccompanied refugee adolescents; and (iii) the Refugee Health Screener (RHS-13) with refugee adolescents. Parents of two- to six-year-olds (N = 61) were asked to complete the SDQ-T, and refugee adolescents were asked to complete the CRIES-8 (N = 208) and, in a separate study, the RHS-13 (N = 29) during the routine health checks. Focus-group interviews were conducted with the nurses who used the SDQ-T. The nurses felt the SDQ-T contributed to a more structured and informative conversation about the child's mental health. The SDQ total difficulties showed good internal consistency (α=.82). A significant proportion of children scored above the clinical cut-off and SDQ scores correlated with the number of post-traumatic stress symptoms measured using the trauma supplement (rho=.29). The findings suggest the SDQ-T is a useful tool in this clinical setting. The CRIES-8 was feasible to use, showed good internal consistency and its factor structure was confirmed. However, an independent assessment of test-retest reliability (N = 48) and longitudinal invariance (N = 284) indicated potential instability. It could be the CRIES-8 does not perform well when used with the unaccompanied refugee adolescent population over time, or that PTSD symptoms are less stable within this group given the multiple stressors in everyday life related to acculturation stress, family separation and living arrangements. The RHS showed excellent internal consistency (α=.96) and correlated with symptoms of post-traumatic stress disorder (r=.41).

Meaningful patient and public involvement to advance healthcare equity, quality and accessibility

Background

A large part of public health is promoting healthcare equity, quality and accessibility. Patient and public involvement (PPI) is a powerful tool to support this goal. It can lead to a richer understanding of public health research topics, improve data quality and analysis, increase trust in and dissemination of research findings, and ultimately achieve health services that are useful, useable and desirable. However, this all relies on PPI being conducted in a meaningful, respectful and inclusive way. Guidance is available on how to conduct, report and evaluate PPI activities. However, evaluative data are often brief, narrative descriptions, which reflects the lack of robust tools specifically developed to assess PPI. The purpose of this study was to develop and pilot tools to objectively assess PPI in the context of research project meetings.

Methods

PPI and group dynamics literature was used to guide the construction of an observation protocol and questionnaire. The research tools were piloted within a randomised trial of a community intervention for refugee children reporting symptoms of posttraumatic stress.

Results

The Active Involvement of Users in Research Observation Schedule is a semi-structured observation protocol, which consists of 12 observable behaviours relating to the interpersonal relations between researchers and PPI advisors; the nature of advisor contributions; and how the advisors guide research development. Each category consists of positive and negative behaviours. There is an accompanying paper-based assessment form that allows attendees to independently and anonymously grade the meeting on a list of items that correspond to those on the observation pro-forma. Preliminary inter-rater reliability for the observation protocol is good (ICC=0.833; 95% CI: 0.569-0.947).

Conclusions

Although the research tools require further refinement and validation, the methodological approach offers a promising, rigorous way to evaluate PPI.

Key messages

A large part of public health is promoting healthcare equity, quality and accessibility. Patient and public involvement (PPI) is a powerful tool to support this goal. The Active Involvement of Users in Research Observation Schedule and Questionnaire offer a promising, rigorous way to evaluate PPI and promote meaningful involvement to advance public health research.

Acute Myocardial Injury Caused by Sydney Funnel-web Spider (Atrax robustus) Envenoming

A 67-year-old female suffered envenoming by a Sydney funnel-web spider (Atrax robustus ), complicated by ST elevation and elevated troponin levels consistent with an acute myocardial injury. She was treated primarily with funnel-web spider antivenom, admission to intensive care and initial respiratory support for acute pulmonary oedema. The mechanism by which funnel-web spider envenomation caused myocardial injury is unclear but follow-up nuclear studies in the patient demonstrated that she had minimal atherosclerotic disease.

Age and gender-related differences in emotional and behavioural problems and autistic features in children and adolescents with Down syndrome: a survey-based study of 674 individuals

BACKGROUND

Recent studies have indicated an increased risk of autism, behavioural and emotional problems and attention-deficit/hyperactivity disorder in individuals with Down syndrome.

METHOD

In a large-scale survey-based study, we examined the rates of these problems and their relationship to age and gender, in a sample of 674 individuals (4-18 years) with Down syndrome. The relationship with IQ level was also explored in a subsample (n = 175). The Strengths and Difficulties Questionnaire and the Social Communication Questionnaire were used to assess behavioural and emotional problems and autism traits.

RESULTS

On the Strengths and Difficulties Questionnaire, peer problems were the most frequently reported difficulty (48% > cut-off), followed by hyperactivity/inattention (34% > cut-off). On the Social Communication Questionnaire, 37% scored at or above cut-off (≥15) for autism spectrum disorder; 17% were at or above the suggested cut-off (≥22) for autism. Little association between age and behavioural or emotional problems or with severity of autistic symptomatology was found. However, peer problems were more common in adolescents than in junior school children (P < 0.001); Hyperactivity/inattention was less prevalent among adolescents (P < 0.001).

CONCLUSIONS

High rates of autistic features, emotional and behavioural problems are documented. These problems are related to age, gender and degree of intellectual disability.

Profiles of children with Down syndrome who meet screening criteria for autism spectrum disorder (ASD): a comparison with children diagnosed with ASD attending specialist schools

BACKGROUND

Recent research suggests that around 16% to 18% of children with Down syndrome (DS) also meet diagnostic criteria for autism spectrum disorder (ASD). However, there are indications that profiles of autism symptoms in this group may vary from those typically described in children with ASD.

METHOD

Rates of autism symptoms and emotional and behavioural problems among children with DS who screened positive for ASD on the Social Communication Questionnaire (SCQ) (n = 183) were compared with a group of children with clinical diagnoses of ASD (n = 189) attending specialist schools in the UK. Groups were matched for age and approximate language level (use of phrase speech).

RESULTS

Profiles of autistic symptoms in the two groups were generally similar, but children with DS meeting ASD cut-off on the SCQ tended to show fewer problems in reciprocal social interaction than those in the ASD group. They also showed slightly lower rates of emotional and peer-related problems. The results mostly confirm findings from a previous study in which the original validation sample for the SCQ was used as a comparison group.

CONCLUSION

Findings suggest that children with DS who meet screening criteria for ASD show similar profiles of communication and repetitive behaviours to those typically described in autism. However, they tend to have relatively milder social difficulties. It is important that clinicians are aware of this difference if children with DS and ASD are to be correctly diagnosed and eligible for specialist intervention and education services.

Post-hoc comparison of vitamin D status at three timepoints during pregnancy demonstrates lower risk of preterm birth with higher vitamin D closer to delivery

There have been observational reports that maternal vitamin D status at baseline and not closest to delivery is a better predictor of pregnancy outcomes, suggesting that a cascade of events is set into motion that is not modifiable by vitamin D supplementation during later pregnancy. To address this issue, in this exploratory post-hoc analysis using correlation and logistic regression, we sought to measure the strength of the association between serum 25(OH)D concentrations at 3 timepoints during pregnancy: baseline, 1st trimester (<16 weeks); 2nd trimester (16-26 weeks); and 3rd trimester (≥27 weeks) and preterm birth. It was hypothesized that the 25(OH)D value closest to delivery would be most significantly associated with preterm birth. To accomplish this objective, the datasets from NICHD (n=333) and Thrasher Research Fund (n=154) vitamin D supplementation pregnancy studies were combined. The results of this analysis were that 25(OH)D values closer to delivery were more strongly correlated with gestational age at delivery than earlier values: 1st trimester: r=0.11 (p=0.02); 2nd trimester: r=0.08 (p=0.09); and 3rd trimester: r=0.15 (p=0.001). When logistic regression was performed with preterm birth (<37 weeks) as the outcome and 25(OH)D quartiles as the predictor variable, adjusting for study and participant race/ethnicity, as with the correlation analysis, the measurements closer to delivery were more significantly associated and had a higher magnitude of effect. That is, at baseline, those who had serum concentrations <50nmol/L (20ng/mL) had 3.3 times of odds of a preterm birth compared to those with serum concentrations ≥100nmol/L (40ng/mL; p=0.27). At 2nd trimester, the odds were 2.0 fold (p=0.21) and at the end of pregnancy, the odds were 3.8 fold (p=0.01). The major findings from this exploratory analysis were: (1) maternal vitamin D status closest to delivery date was more significantly associated with preterm birth, suggesting that later intervention as a rescue treatment may positively impact the risk of preterm delivery, and (2) a serum concentration of 100nmol/L (40ng/mL) in the 3rd trimester was associated with a 47% reduction in preterm births. This article is part of a Special Issue entitled '17th Vitamin D Workshop'.

Yunis-varon syndrome: further delineation of cardiovascular and endocrine outcome

Yunis-Varon syndrome is a rare autosomal recessive condition initially characterized by specific skeletal and ectodermal abnormalities, and a poor prognosis, due to neurological and cardiovascular involvement. We describe the cardiovascular and endocrine complications in a 26-year-old man who had been reported previously, adding dilated cardiomyopathy to the clinical features consistent with Yunis-Varon syndrome. Short stature, successfully treated with growth hormone, and hypertension secondary to bilateral renal artery stenosis expand the phenotype.

Validating the prediction of lower urinary tract infection in primary care: sensitivity and specificity of urinary dipsticks and clinical scores in women

BACKGROUND

Dipsticks are one of the most commonly used near-patient tests in primary care, but few clinical or dipstick algorithms have been rigorously developed.

AIM

To confirm whether previously documented clinical and dipstick variables and algorithms predict laboratory diagnosis of urinary tract infection (UTI).

DESIGN OF STUDY

Validation study.

SETTING

Primary care.

METHOD

A total of 434 adult females with suspected lower UTI had bacteriuria assessed using the European Urinalysis Guidelines.

RESULTS

Sixty-six per cent of patients had confirmed UTI. The predictive values of nitrite, leucocyte esterase (+ or greater), and blood (haemolysed trace or greater) were confirmed (independent multivariate odds ratios = 5.6, 3.5, and 2.1 respectively). The previously developed dipstick rule--based on presence of nitrite, or both leucocytes and blood-- was moderately sensitive (75%) but less specific (66%; positive predictive value [PPV] 81%, negative predictive value [NPV] 57%). Predictive values were improved by varying the cut-off point: NPV was 76% for all three dipstick results being negative; the PPV was 92% for having nitrite and either blood or leucocyte esterase. Urine offensive smell was not found to be predictive in this sample; for a clinical score using the remaining three predictive clinical features (urine cloudiness, dysuria, and nocturia), NPV was 67% for none of the features, and PPV was 82% for three features.

CONCLUSION

A clinical score is of limited value in increasing diagnostic precision. Dipstick results can modestly improve diagnostic precision but poorly rule out infection. Clinicians need strategies to take account of poor NPVs.

Effectiveness of five different approaches in management of urinary tract infection: randomised controlled trial

OBJECTIVE

To assess the impact of different management strategies in urinary tract infections.

DESIGN

Randomised controlled trial.

SETTING

Primary care.

PARTICIPANTS

309 non-pregnant women aged 18-70 presenting with suspected urinary tract infection.

INTERVENTION

Patients were randomised to five management approaches: empirical antibiotics; empirical delayed (by 48 hours) antibiotics; or targeted antibiotics based on a symptom score (two or more of urine cloudiness, urine smell, nocturia, or dysuria), a dipstick result (nitrite or both leucocytes and blood), or a positive result on midstream urine analysis. Self help advice was controlled in each group.

MAIN OUTCOME MEASURES

Symptom severity (days 2 to 4) and duration, and use of antibiotics.

RESULTS

Patients had 3.5 days of moderately bad symptoms if they took antibiotics immediately. There were no significant differences in duration or severity of symptoms (mean frequency of symptoms on a 0 to 6 scale: immediate antibiotics 2.15, midstream urine 2.08, dipstick 1.74, symptom score 1.77, delayed antibiotics 2.11; likelihood ratio test for the five groups P=0.177). There were differences in antibiotic use (immediate antibiotics 97%, midstream urine 81%, dipstick 80%, symptom score 90%, delayed antibiotics 77%; P=0.011) and in sending midstream urine samples (immediate antibiotics 23%, midstream urine 89%, dipstick 36%, symptom score 33%, delayed antibiotics 15%; P<0.001). Patients who waited at least 48 hours to start taking antibiotics reconsulted less (hazard ratio 0.57 (95% confidence interval 0.36 to 0.89), P=0.014) but on average had symptoms for 37% longer than those taking immediate antibiotics (incident rate ratio 1.37 (1.11 to 1.68), P=0.003), particularly the midstream urine group (73% longer, 22% to 140%; none of the other groups had more than 22% longer duration).

CONCLUSION

All management strategies achieve similar symptom control. There is no advantage in routinely sending midstream urine samples for testing, and antibiotics targeted with dipstick tests with a delayed prescription as backup, or empirical delayed prescription, can help to reduce antibiotic use.

STUDY REGISTRATION

National Research Register N0484094184 ISRCTN: 03525333.

Presentation, pattern, and natural course of severe symptoms, and role of antibiotics and antibiotic resistance among patients presenting with suspected uncomplicated urinary tract infection in primary care: observational study

OBJECTIVE

To assess the natural course and the important predictors of severe symptoms in urinary tract infection and the effect of antibiotics and antibiotic resistance.

DESIGN

Observational study.

SETTING

Primary care.

PARTICIPANTS

839 non-pregnant adult women aged 18-70 presenting with suspected urinary tract infection.

MAIN OUTCOME MEASURE

Duration and severity of symptoms.

RESULTS

684 women provided some information on symptoms; 511 had both laboratory results and complete symptom diaries. For women with infections sensitive to antibiotics, severe symptoms, rated as a moderately bad problem or worse, lasted 3.32 days on average. After adjustment for other predictors, moderately bad symptoms lasted 56% longer (incidence rate ratio 1.56, 95% confidence interval 1.22 to 1.99, P<0.001) in women with resistant infections; 62% longer (1.62, 1.13 to 2.31, P=0.008) when no antibiotics prescribed; and 33% longer (1.33, 1.14 to 1.56, P<0.001) in women with urethral syndrome. The duration of symptoms was shorter if the doctor was perceived to be positive about diagnosis and prognosis (continuous 7 point scale: 0.91, 0.84 to 0.99; P=0.021) and longer when the woman had frequent somatic symptoms (1.03, 1.01 to 1.05, P=0.002; for each symptom), a history of cystitis, urinary frequency, and more severe symptoms at baseline.

CONCLUSION

Antibiotic resistance and not prescribing antibiotics are associated with a greater than 50% increase in the duration of more severe symptoms in women with uncomplicated urinary tract infection. Women with a history of cystitis, frequent somatic symptoms (high somatisation), and severe symptoms at baseline can be given realistic advice that they are likely to have severe symptoms lasting longer than three days.

Effect of antibiotic prescribing strategies and an information leaflet on longer-term reconsultation for acute lower respiratory tract infection

BACKGROUND

Limited evidence suggests that delayed prescribing may influence future consultation behaviour.

AIM

To assess the effects of antibiotic prescribing strategy on reconsultation in the year following presentation with acute lower respiratory tract infection (LRTI).

DESIGN OF STUDY

Balanced factorial randomised trial.

SETTING

Primary care.

METHOD

Eight hundred and seven subjects, aged>or=3 years, had acute illness presenting with cough as the main symptom, plus at least one symptom or sign from sputum, chest pain, dyspnoea or wheeze. The subjects were randomised to one of three prescribing strategies (antibiotics, delayed antibiotic, no antibiotic) and a leaflet. Prior antibiotic use and reconsultation were assessed by medical record review.

RESULTS

Patients who had been prescribed antibiotic for cough in the previous 2 years were much more likely to reconsult (incidence rate ratio [IRR]=2.55, 95% confidence interval [CI]=1.62 to 4.01) and use of a delayed prescription strategy is associated with reduced reconsultation in this group. In those with prior antibiotic exposure, there was a 34% reduction in consultation rate in the no antibiotic group (IRR=0.66, 0.30 to 1.44, P=0.295) and a 78% reduction for the delayed antibiotic group (IRR=0.22, 0.10 to 0.49, P<0.001) when compared with those given immediate antibiotics. This effect was not observed in patients who had not been prescribed antibiotics in the previous 2 years; there was no reduction in consultations in the no antibiotic group (IRR=1.23, 0.79 to 1.92, P=0.358) or the delayed antibiotic group (1.19, 0.78 to 1.80, P=0.426). There was an increase in consultation rate with an information leaflet (IRR=1.27, 0.86 to 1.87, P=0.229). Past attendance with cough, or past attendance with other respiratory illness and smoking, also predicted reconsultation with cough.

CONCLUSION

Delayed antibiotic prescribing for LRTI appears effective in modifying reconsultation behaviour, particularly in those with a prior history of antibiotic prescription for LRTI.

Dipsticks and diagnostic algorithms in urinary tract infection: development and validation, randomised trial, economic analysis, observational cohort and qualitative study

OBJECTIVES

To estimate clinical and dipstick predictors of infection and develop and test clinical scores; to compare management using clinical and dipstick scores with commonly used alternative strategies; to estimate the cost-effectiveness of each strategy; and to understand the natural history of urinary tract infection (UTI) and women's concerns about its presentation and management.

DESIGN

There were six studies: (1) validation development for diagnostic clinical and dipstick scores; (2) validation of the scores developed; (3) observation of the natural history of UTI; (4) randomised controlled trial (RCT) of scores developed in study 1; (5) economic analysis of the RCT; (6) qualitative study of patients in the RCT.

SETTING

Primary care.

PARTICIPANTS

Women aged 17-70 with suspected UTI.

INTERVENTIONS

Patients were randomised to five management approaches: empirical antibiotics; empirical delayed antibiotics; target antibiotics based on a higher symptom score; target antibiotics based on dipstick results; or target antibiotics based on a positive mid-stream specimen of urine (MSU).

MAIN OUTCOME MEASURES

Antibiotic use, use of MSUs, rates of reconsultation and duration, and severity of symptoms.

RESULTS

(1) 62.5% of women had confirmed UTI. Only nitrite, leucocyte esterase and blood independently predicted diagnosis of UTI. A dipstick rule--based on having nitrite or both leucocytes and blood--was moderately sensitive (77%) and specific (70%) [positive predictive value (PPV) 81%, negative predictive value (NPV) 65%]. A clinical rule--based on having two of urine cloudiness, offensive smell, reported moderately severe dysuria, moderately severe nocturia--was less sensitive (65%) (specificity 69%, PPV 77%, NPV 54%). (2) 66% of women had confirmed UTI. The predictive values of nitrite, leucocyte esterase and blood were confirmed. The dipstick rule was moderately sensitive (75%) but less specific (66%) (PPV 81%, NPV 57%). (3) Symptoms rated as moderately bad or worse lasted 3.25 days on average for infections sensitive to antibiotics; resistant infections lasted 56% longer, infections not treated with antibiotics 62% longer and symptoms associated with urethral syndrome 33% longer. Symptom duration was shorter if the doctor was perceived to be positive about prognosis, and longer with frequent somatic symptoms, previous history of cystitis, urinary frequency and more severe symptoms at baseline. (4) 66% of the MSU group had laboratory-confirmed UTI. Women suffered 3.5 days of moderately bad symptoms if they took antibiotics immediately but 4.8 days if they delayed taking antibiotics for 48 hours. Taking bicarbonate or cranberry juice had no effect. (5) The MSU group was more costly over 1 month but not over 1 year. Cost-effectiveness acceptability curves showed that for a value per day of moderately bad symptoms of over 10 pounds, the dipstick strategy is most likely to be cost-effective. (6) Fear of spread to the kidneys, blood in the urine, and the impact of symptoms on vocational and leisure activities were important triggers for seeking help. When patients are asked to delay taking antibiotics the uncomfortable and worrying journey from 'person to patient' needs to be acknowledged and the rationale behind delaying the antibiotics made clear.

CONCLUSIONS

To achieve good symptom control and reduce antibiotic use clinicians should either offer a 48-hour delayed antibiotic prescription to be used at the patient's discretion or target antibiotic treatment by dipsticks (positive nitrite or positive leucocytes and blood) with the offer of a delayed prescription if dipstick results are negative.

Predicting the duration of symptoms in lower respiratory tract infection

BACKGROUND

Acute lower respiratory tract infection (LRTI) presenting in primary care has a long natural history. Antibiotic treatment makes little or no difference to the duration of cough. Limited information is currently available regarding predictors of illness duration.

AIM

To determine predictors of illness duration in acute LRTI in primary care.

DESIGN OF STUDY

Secondary analysis of trial data to identify independent predictors of illness severity and duration.

SETTING

Primary care.

METHOD

Eight-hundred and seven patients aged 3 years and over with acute illness (21 days or less) presenting with cough as the main symptom plus at least one symptom or sign from sputum, chest pain, dyspnoea, or wheeze were recruited to the study. Main outcomes were duration of symptoms (rated at least a slight problem) and more severe symptoms (rated at least moderately bad).

RESULTS

The average duration of cough (rated at least a slight problem) was 11.7 days and was shorter among children (duration -1.72 days; 95% confidence interval [CI] = -3.02 to -0.41) or in individuals with a history of fever (-1.22 days; 95% CI = -0.18 to 2.27). The duration of cough was longer among those with restricted activities on the day they saw the doctor (+0.69 days for each point of a 7-point scale). The duration of more severe symptoms was longer in those with a longer duration of symptoms prior to consultation, with a more severe cough on the day of seeing the doctor, and restriction of activities on the day of seeing the doctor.

CONCLUSION

Illness duration may be predicted from a limited number of clinical symptoms and from prior history. These findings should be subjected to validation in a separate population. To minimise expectation about rapid resolution of illness, adults who have restricted activities could be advised that they are likely to experience symptoms for longer.

Developing clinical rules to predict urinary tract infection in primary care settings: sensitivity and specificity of near patient tests (dipsticks) and clinical scores

BACKGROUND

Suspected urinary tract infection (UTI) is one of the most common presentations in primary care. Systematic reviews have not documented any adequately powered studies in primary care that assess independent predictors of laboratory diagnosis.

AIM

To estimate independent clinical and dipstick predictors of infection and to develop clinical decision rules.

DESIGN OF STUDY

Validation study of clinical and dipstick findings compared with laboratory testing.

SETTING

General practices in the south of England.

METHOD

Laboratory diagnosis of 427 women with suspected UTI was assessed using European urinalysis guidelines. Independent clinical and dipstick predictors of diagnosis were estimated.

RESULTS

UTI was confirmed in 62.5% of women with suspected UTI. Only nitrite, leucocyte esterase (+ or greater), and blood (haemolysed trace or greater) independently predicted diagnosis (adjusted odds ratios 6.36, 4.52, 2.23 respectively). A dipstick decision rule, based on having nitrite, or both leucocytes and blood, was moderately sensitive (77%) and specific (70%); positive predictive value (PPV) was 81% and negative predictive value (NPV) was 65%. Predictive values were improved by varying the cut-off point: NPV was 73% for all three dipstick results being negative, and PPV was 92% for having nitrite and either blood or leucocyte esterase. A clinical decision rule, based on having two of the following: urine cloudiness, offensive smell, and dysuria and/or nocturia of moderate severity, was less sensitive (65%) (specificity 69%; PPV 77%, NPV 54%). NPV was 71% for none of the four clinical features, and the PPV was 84% for three or more features.

CONCLUSIONS

Simple decision rules could improve targeting of investigation and treatment. Strategies to use such rules need to take into account limited negative predictive value, which is lower than expected from previous research.

Longer term outcomes from a randomised trial of prescribing strategies in otitis media

BACKGROUND

There are limited data about the longer-term outcomes in acute otitis media (AOM) when comparing the realistic alternatives of immediate prescription of antibiotics and a 'wait and see' or delayed prescribing policy.

AIM

The aim was to assess the medium and longer term outcomes of two prescribing strategies for otitis media.

DESIGN OF STUDY

Follow-up of a randomised controlled trial cohort.

SETTING

Primary care.

METHOD

Three-hundred and fifteen children aged 6 months to 10 years presenting with AOM were randomised to immediate antibiotics, or antibiotics delayed at the parents discretion 72 hours if the child still had significant otalgia or fever, or was not improving. Episodes of earache since study entry were documented, and a poor score (of 9 or more--the top 20%) on a reliable six-item functional rating scale (Cronbach's alpha = 0.75).

RESULTS

The delayed prescribing strategy did not significantly increase reported episodes of earache in the 3 months since randomisation (odds ratio [OR] = 0.89; 95% confidence interval [CI] = 0.48 to 1.65) or over 1 year (OR = 1.03; 95% CI = 0.60 to 1.78) nor of poor scores on the function scale at 3 months (OR = 1.16; 95% CI = 0.61 to 2.22) or 1 year (OR = 1.12; 95% CI = 0.57 to 2.19), and controlling for subsequent antibiotic use after the randomised episode did not alter these estimates. The number of prior episodes of AOM documented in the doctor's notes predicted episodes of earache reported (0, 1, > or = 2 episodes, respectively; OR = 1, 2.42, 2.61; chi2 for trend 8.04; P<0.01). There was weaker evidence that prior episodes also predicted poor function at 1 year (OR = 1, 1.86, 2.28; chi2 for trend 5.49; P = 0.019). For children with recurrent AOM (two or more previous episodes documented in the doctor's notes, n = 43) there was possible evidence of fewer episodes of earache in the 3 months since study entry in the immediate antibiotic group (10% compared to 39% in the delayed group, chi2 4.8, P = 0.029), but no effect from randomisation to 1 year.

CONCLUSIONS

For most children, delayed prescribing is not likely to have adverse longer-term consequences. Children with recurrent AOM are more likely to have poorer outcomes. Secondary analysis should be treated with caution and requires confirmation, but suggests that treating such children with antibiotics immediately may not alter longer-term outcomes.

Coronary artery fistula in a patient with pulmonary atresia and tricuspid atresia clinical and MRI findings

The MRI findings of a case of coronary artery fistula occurring in a patient with pulmonary atresia and tricuspid atresia is presented.

Pregabalin: as adjunctive treatment of partial seizures

Pregabalin, the pharmacologically active S-enantiomer of 3-aminomethyl-5-methylhexanoic acid, possesses anticonvulsant activity. Pregabalin binds with high affinity and specificity to voltage-gated calcium channel alpha(2)-delta proteins. The putative mechanism of action of the drug is reduced excitatory neurotransmitter release caused by binding to the alpha(2)-delta protein, resulting in allosteric modulation of P/Q-type voltage-gated calcium channels. In three well designed trials, oral pregabalin as adjunctive therapy in patients with refractory partial seizures was significantly (p < or = 0.0007) more effective than placebo in reducing seizure frequency when administered at dosages of 150-600 mg/day (as two or three divided doses). Adjunctive pregabalin produced an overall mean 41.3% improvement from baseline in 28-day seizure-free rate in four long-term (maximum exposure 1764 days), open-label studies in 1480 patients. CNS-related effects (e.g. dizziness and somnolence) were the most frequent dose-related treatment-emergent adverse events associated with adjunctive pregabalin therapy.

AlphaScreen™ Kinase HTS Platforms

Kinases represents one of the most important family of targets in high throughput drug screening. Tyrosine kinases and serine/threonine kinases are known to play key roles in signal transduction as well as in cell growth and differentiation. Intense screening campaigns are underway in all major pharmaceuticals and large biotech companies to find kinase inhibitors for the treatment of inflammatory diseases, immunological disorders and cancer. The present contribution describes models that were developed to produce kinase assays amenable to HTS using AlphaScreen. Because of the flexibility allowed by AlphaScreen, kinase assays can be developed using direct or indirect approaches. Tyrosine kinase assays are usually performed with a direct format involving generic anti-phosphotyrosine antibodies while serine/threonine kinase assays are performed with an indirect format where specific antibodies are captured using protein A conjugated Acceptor beads. Streptavidin-coated Donor beads are used to capture either generic (ex. poly GT) or specific biotinylated substrates. Herein, are presented different methods to perform screening for inhibitors acting on the soluble beta-insulin receptor tyrosine kinase (IRKD), and on p38, a member of the MAP kinase family.

Randomised controlled trial of effect of leaflets to empower patients in consultations in primary care

OBJECTIVE

To assess the impact of leaflets encouraging patients to raise concerns and to discuss symptoms or other health related issues in the consultation.

DESIGN

Randomised controlled trial.

SETTING

Five general practices in three settings in the United Kingdom.

PARTICIPANTS

636 consecutive patients, aged 16-80 years, randomised to receive a general leaflet, a depression leaflet, both, or neither.

MAIN OUTCOMES

Mean item score on the medical interview satisfaction scale, consultation time, prescribing, referral, and investigation.

RESULTS

The general leaflet increased patient satisfaction and was more effective with shorter consultations (leaflet 0.64, 95% confidence interval 0.19 to 1.08; time 0.31, 0.0 to 0.06; interaction between both -0.045, -0.08 to-0.009), with similar results for subscales related to the different aspects of communication. Thus for a 10 minute consultation the leaflet increased satisfaction by 7% (seven centile points) and for a five minute consultation by 14%. The leaflet overall caused a small non-significant increase in consultation time (0.36 minutes, -0.54 to 1.26). Although there was no change in prescribing or referral, a general leaflet increased the numbers of investigations (odds ratio 1.43, 1.00 to 2.05), which persisted when controlling for the major potential confounders of perceived medical need and patient preference (1.87, 1.10 to 3.19). Most of excess investigations were not thought strongly needed by the doctor or the patient. The depression leaflet had no significant effect on any outcome.

CONCLUSIONS

Encouraging patients to raise issues and to discuss symptoms and other health related issues in the consultation improves their satisfaction and perceptions of communication, particularly in short consultations. Doctors do, however, need to elicit expectations to prevent needless investigations.

Importance of patient pressure and perceived pressure and perceived medical need for investigations, referral, and prescribing in primary care: nested observational study

OBJECTIVE

To assess how pressures from patients on doctors in the consultation contribute to referral and investigation.

DESIGN

Observational study nested within a randomised controlled trial.

SETTING

Five general practices in three settings in the United Kingdom.

PARTICIPANTS

847 consecutive patients, aged 16-80 years.

MAIN OUTCOMES MEASURES

Patient preferences and doctors' perception of patient pressure and medical need.

RESULTS

Perceived medical need was the strongest independent predictor of all behaviours and confounded all other predictors. The doctors thought, however, there was no or only a slight indication for medical need among a significant minority of those who were examined (89/580, 15%), received a prescription (74/394, 19%), or were referred (27/125, 22%) and almost half of those investigated (99/216, 46%). After controlling for patient preference, medical need, and clustering by doctor, doctors' perceptions of patient pressure were strongly associated with prescribing (adjusted odds ratio 2.87, 95% confidence interval 1.16 to 7.08) and even more strongly associated with examination (4.38, 1.24 to 15.5), referral (10.72, 2.08 to 55.3), and investigation (3.18, 1.31 to 7.70). In all cases, doctors' perception of patient pressure was a stronger predictor than patients' preferences. Controlling for randomisation group, mean consultation time, or patient variables did not alter estimates or inferences.

CONCLUSIONS

Doctors' behaviour in the consultation is most strongly associated with perceived medical need of the patient, which strongly confounds other predictors. However, a significant minority of examining, prescribing, and referral, and almost half of investigations, are still thought by the doctor to be slightly needed or not needed at all, and perceived patient pressure is a strong independent predictor of all doctor behaviours. To limit unnecessary resource use and iatrogenesis, when management decisions are not thought to be medically needed, doctors need to directly ask patients about their expectations.

Predictors of poor outcome and benefits from antibiotics in children with acute otitis media: pragmatic randomised trial

OBJECTIVES

To identify which children with acute otitis media are at risk of poor outcome and to assess benefit from antibiotics in these children.

DESIGN

Secondary analysis of randomised controlled trial cohort.

SETTING

Primary care.

PARTICIPANTS

315 children aged 6 months to 10 years.

INTERVENTION

Immediate or delayed (taken after 72 hours if necessary) antibiotics.

MAIN OUTCOME MEASURE

Predictors of short term outcome: an episode of distress or night disturbance three days after child saw doctor.

RESULTS

Distress by day three was more likely in children with high temperature (adjusted odds ratio 4.5, 95% confidence interval 2.3 to 9.0), vomiting (2.6,1.3 to 5.0), and cough (2.0, 1.1 to 3.8) on day one. Night disturbance by day three was more likely with high temperature 2.4 (1.2 to 4.8), vomiting (2.1,1.1 to 4.0), cough (2.3,1.3 to 4.2), and ear discharge (2.1, 1.2 to 3.9). Among the children with high temperature or vomiting, distress by day three was less likely with immediate antibiotics (32% for immediate v 53% for delayed, chi2=4.0; P=0.045, number needed to treat 5) as was night disturbance (26% v 59%, chi2=9.3; P=0.002; number needed to treat 3). In children without higher temperature or vomiting, immediate antibiotics made little difference to distress by day three (15% v 19%, chi2=0.74; P=0.39) or night disturbance (20% v 27%, chi2=1.6; P=0.20). Addition of cough did not significantly improve prediction of benefit.

CONCLUSION

In children with otitis media but without fever and vomiting antibiotic treatment has little benefit and a poor outcome is unlikely.

Psychosocial, lifestyle, and health status variables in predicting high attendance among adults

BACKGROUND

Increasing consultation rates have implications for the organisation of health services, the quality of care, and understanding the decision to consult. Most quantitative studies have concentrated on very high attenders--not those attending five or more times a year, who are responsible for most (60%) consultations--and have assessed neither the role of lifestyle nor patients' attitudes.

AIMS

To assess associations with higher than average attendance (five or more times ayear).

DESIGN OF STUDY

Postal questionnaire sent to a random sample.

SETTING

Four thousand adults (one per household) from six general practices.

METHOD

Data were analysed to identify predictors significantly associated with higher than average attendance.

RESULTS

The response rate was 74%. Sef-reported attendance agreed with the notes (r = 0.80, likelihood ratio for a positive test = 9.4). Higher attendance was independently predicted by the severity of ill health (COOP score = 0-7, 8-9, and 10+; adjusted odds ratios= 1, 1.72, 1.91 respectively; test for trend P<0.001) and the number of reported medical problems (COOP score = 0, 1, 2, and 3+ respectively; adjusted ORs = 1, 2.05, 2.31, 4.29; P<0.001). After controlling for sociodemographic variables, medical problems, the severity of physical ill health, and other confounders, high attendance was more likely in those with medically unexplained somatic symptoms (0, 1-2, 3-5, and 6+ symptoms respectively, ORs = 1, 1.15, 1.48, and 1.62; P<0.001); health anxiety (Whitely Index = 0, 1-5, 6-7 and 8+ respectively, ORs = 1, 1.22, 1.77, and 2.78; P<0.001); and poor perceived health ('very good', 'good', 'poor' respectively, ORs = 1, 1.61, and 2.93; P<0.001). Attendance was less likely in those with negative attitudes to repeated surgery use (OR = 0.61, 95% CI = 0.47-0.78), or to doctors (Negdoc scale <18, 18-20, and 21+ respectively; ORs = 1, 0.87, 0.67; P<0.001), in those usually trying the pharmacy first (OR = 0.61, 95% CI 0.48-0.78), and those consuming alcohol (0, 1, 2, 3+ units/day respectively; ORs = 1, 0.62, 0.41, 0.29; P<0.001). Anxiety or depression predicted perceived health, unexplained symptoms, and health anxiety.

CONCLUSION

Strategies to manage somatic symptoms, health anxiety, dealing with the causes of--or treating--anxiety and depression, and encouraging use of the pharmacy have the potential both to help patients manage symptoms and in the decision to consult. Sensitivity to the psychological factors contributing to the decision to consult should help doctors achieve a better shared understanding with their patients and help inform appropriate treatment strategies.

Family influences in a cross-sectional survey of higher child attendance

BACKGROUND

A quarter of all consultations are for children, but there is little quantitative evidence documenting what parental factors are important in the decision to consult.

AIM

To assess parental factors in higher child attendance (three or more times per year)--the 32% responsible for most (69%) general practice consultations with children.

DESIGN OF STUDY

A random sample of 4000 individuals (one per household), including 670 children.

SETTING

Six general practices within a 30-mile radius of the administrative centre.

METHOD

Parents completed a postal questionnaire for themselves and their child. The adult questionnaire documented lifestyle, attitude to doctors and medicine, Kokko's personality types, perceived health, health anxiety, number of medical problems, medically unexplained somatic symptoms, and willingness to tolerate symptoms. The child questionnaire documented perceived health, the number of medical problems, somatic symptom inventory, willingness to tolerate symptoms, and self-reported attendance.

RESULTS

(Adjusted odds ratios, test for trend, 95% confidence intervals.) A response rate of 490/670 (73%) paired adult and child questionnaires was obtained. Reported higher attendance was valid compared with the notes (likelihood ratio positive test = 5.2, negative test = 0.24), and was independently predicted by the child's age, medical problems, council house occupancy, and by the parents' assessment of the severity of the child's ill health. After controlling for these variables, higher attendance was more likely if the parents were higher attenders (adjusted OR = 3.71, 95% CI = 2.31-5.98), and if they perceived their children had medically unexplained physical symptoms (MUPS) (for 0, 1, 2, 3+ symptoms; adjusted ORs (95% CIs) = 1, 3.1 (1.7-5.7), 2.30 (0.97-5.5), 4.2 (1.8-9.6) respectively, P < or = 0.001). Attendance was less likely if they were willing to tolerate symptoms in their children (score for seven normally self-limiting scenarios = 0-17, 18-29 and 30+; adjusted ORs = 1, 0.71, 0.39 respectively, z for trend P = 0.03), willingness to tolerate symptoms and parental perception of child MUPS were associated with council house tenancy and health anxiety. Parents' perception of child MUPS also related to perception of child health and the parents' own MUPS. Parents of higher attenders were more likely to be depressed (HAD depression scale = 0-7, 8-10, 11+ respectively; adjusted ORs (95% CIs) = 1, 2.04 (1.27-3.27), 1.60 (0.75-3.42)) or anxious (anxiety scale 0-7, 8-10, 11+, respectively; adjusted ORs [95% CIs] = 1, 1.60 [0.99-2.58], 1.97 [1.20-3.26]).

CONCLUSION

Important parental factors are council house tenancy, the parents' perception of and willingness to tolerate, somatic symptoms in the child, and the parents' own attendance history, health anxiety, and perception of somatic symptoms Doctors should be sensitive to the parental and family factors that underlie the decision to consult and of the needs of parents of high-attending children.

Association of NRAMP1 polymorphism with leprosy type but not susceptibility to leprosy per se in west Africans

Twin and family studies indicate that host genetic factors influence susceptibility to leprosy and, possibly, leprosy type. Murine studies have suggested a role for the natural resistance-associated macrophage protein 1 (Nramp1) gene, which can influence cellular immune responses to intracellular pathogens. We evaluated a variation in the human homolog, NRAMP1, recently associated with tuberculosis susceptibility in West Africa. A total of 273 patients with leprosy and 201 controls from Mali were genotyped for NRAMP1 polymorphisms previously associated with tuberculosis. No association was found with leprosy per se (P = 0.83), but the NRAMP1 3'-untranslated region 4-bp insertion/deletion polymorphism was associated with leprosy type (P = 0.007). Heterozygotes were more frequent among multibacillary than paucibacillary leprosy cases. Thus, variation in or near the NRAMP1 gene may exert an influence on the clinical presentation of leprosy, possibly by influencing cellular immune response type.

Observational study of effect of patient centredness and positive approach on outcomes of general practice consultations

OBJECTIVE

To measure patients' perceptions of patient centredness and the relation of these perceptions to outcomes.

DESIGN

Observational study using questionnaires.

SETTING

Three general practices.

PARTICIPANTS

865 consecutive patients attending the practices.

MAIN OUTCOME MEASURES

Patients' enablement, satisfaction, and burden of symptoms.

RESULTS

Factor analysis identified five components. These were communication and partnership (a sympathetic doctor interested in patients' worries and expectations and who discusses and agrees the problem and treatment, Cronbach's alpha=0.96); personal relationship (a doctor who knows the patient and their emotional needs, alpha=0.89); health promotion (alpha=0.87); positive approach (being definite about the problem and when it would settle, alpha=0.84); and interest in effect on patient's life (alpha=0.89). Satisfaction was related to communication and partnership (adjusted beta=19.1; 95% confidence interval 17.7 to 20.7) and a positive approach (4.28; 2.96 to 5.60). Enablement was greater with interest in the effect on life (0.55; 0.25 to 0.86), health promotion (0.57; 0.30 to 0.85), and a positive approach (0.82; 0.52 to 1.11). A positive approach was also associated with reduced symptom burden at one month (beta=-0.25; -0.41 to -0.10). Referrals were fewer if patients felt they had a personal relationship with their doctor (odds ratio 0.70; 0.54 to 0.90).

CONCLUSIONS

Components of patients' perceptions can be measured reliably and predict different outcomes. If doctors don't provide a positive, patient centred approach patients will be less satisfied, less enabled, and may have greater symptom burden and higher rates of referral.

Validation study of a diary for use in acute lower respiratory tract infection

BACKGROUND

Despite lower respiratory tract infection (LRTi) being the most common illness treated by doctors, no validated outcome measure to assess symptom duration and severity has been developed for patient self-completion.

METHODS

As part of a randomized control trial researching management of acute LRTi, an easy self-completion diary was formulated and validated against the 'measure yourself medical outcome profile 2' (MYMOP2), an instrument previously validated in general practice.

RESULTS

Spearman rank correlations of the diary profile versus MYMOP2 profile at baseline (r = 0.62), day 11 (r = 0.81) and change in score over time (r = 0.51) indicate that our diary correlates significantly with MYMOP2. The standardized response mean of the diary profile (mean change/SD change) = 1.48, indicating sensitivity to change.

CONCLUSION

This study shows that a simple symptom diary is internally reliable, valid and sensitive to change for acute LRTi. This instrument could be used as a routine measure of LRTi in further research in both primary and secondary care.

Randomised controlled trial of self management leaflets and booklets for minor illness provided by post

OBJECTIVE

To assess the effectiveness of providing information by post about managing minor illnesses.

DESIGN

Randomised controlled trial.

SETTING

Six general practices.

PARTICIPANTS

Random sample of 4002 patients from the practice registers.

INTERVENTION

Patients were randomised to receive one of three kinds of leaflet or booklet endorsed by their general practitioner: control (surgery access times), booklet, or summary card.

MAIN OUTCOME MEASURES

Attendance with the 42 minor illnesses listed in the booklet. Perceived usefulness of leaflets or booklets, confidence in managing illness, and willingness to wait before seeing the doctor.

RESULTS

238 (6%) patients did not receive the intervention as allocated. Of the remaining 3764 patients, 2965 (79%) had notes available for review after one year. Compared with the control group, fewer patients attended commonly with the minor illnesses in the booklet group (>/=2 consultations a year: odds ratio 0.81, 95% confidence interval 0.67 to 0.99) and the summary card group (0.83; 0.72 to 0.96). Among patients who had attended with respiratory tract infections in the past year there was a reduction in those attending in the booklet group (0.81; 0.62 to 1.07) and summary card group (0.67; 0.51 to 0.89) compared with the control group. The incidence of contacts with minor illness fell slightly compared with the previous year in the booklet (incidence ratio 0.97; 0.84 to 1.13) and summary card groups (0.93; 0.80 to 1.07). More patients in the intervention groups felt greater confidence in managing illness (booklet 32%, card 34%, control 12%, P<0.001), but there was no difference in willingness to wait score (all groups mean=32, P=0.67).

CONCLUSION

Most patients find information about minor illness provided by post useful, and it helps their confidence in managing illness. Information may reduce the number attending commonly with minor illness, but the effect on overall contacts is likely to be modest. These data suggest that posting detailed information booklets about minor illness to the general population would have a limited effect.

Preferences of patients for patient centred approach to consultation in primary care: observational study

OBJECTIVE

To identify patient's preferences for patient centred consultation in general practice.

DESIGN

Questionnaire study.

SETTING

Consecutive patients in the waiting room of three doctors' surgeries.

MAIN OUTCOME MEASURES

Key domains of patient centredness from the patient perspective. Predictors of preferences for patient centredness, a prescription, and examination.

RESULTS

865 patients participated: 824 (95%) returned the pre-consultation questionnaire and were similar in demographic characteristic to national samples. Factor analysis identified three domains of patient preferences: communication (agreed with by 88-99%), partnership (77-87%), and health promotion (85-89%). Fewer wanted an examination (63%), and only a quarter wanted a prescription. As desire for a prescription was modestly associated with desire for good communication (odds ratio 1.20; 95% confidence interval 0.85 to 1.69), partnership (1.46; 1.01 to 2.09), and health promotion (1.61; 1.12 to 2.31) this study may have underestimated preferences for patient centredness compared with populations with stronger preferences for a prescription. Patients who strongly wanted good communication were more likely to feel unwell (very, moderately, and slightly unwell; odds ratios 1, 0.56, 0.39 respectively, z trend P<0.001), be high attenders (1.70; 1.18 to 2.44), and have no paid work (1.84; 1.21 to 2.79). Strongly wanting partnership was also related to feeling unwell, worrying about the problem, high attendance, and no paid work; and health promotion to high attendance and worry.

CONCLUSION

Patients in primary care strongly want a patient centred approach, with communication, partnership, and health promotion. Doctors should be sensitive to patients who have a strong preference for patient centredness-those vulnerable either psychosocially or because they are feeling unwell.

Pragmatic randomised controlled trial of two prescribing strategies for childhood acute otitis media

OBJECTIVE

To compare immediate with delayed prescribing of antibiotics for acute otitis media.

DESIGN

Open randomised controlled trial.

SETTING

General practices in south west England.

PARTICIPANTS

315 children aged between 6 months and 10 years presenting with acute otitis media.

INTERVENTIONS

Two treatment strategies, supported by standardised advice sheets-immediate antibiotics or delayed antibiotics (antibiotic prescription to be collected at parents' discretion after 72 hours if child still not improving).

MAIN OUTCOME MEASURES

Symptom resolution, absence from school or nursery, paracetamol consumption.

RESULTS

On average, symptoms resolved after 3 days. Children prescribed antibiotics immediately had shorter illness (-1.1 days (95% confidence interval -0.54 to -1.48)), fewer nights disturbed (-0.72 (-0.30 to -1.13)), and slightly less paracetamol consumption (-0.52 spoons/day (-0.26 to -0.79)). There was no difference in school absence or pain or distress scores since benefits of antibiotics occurred mainly after the first 24 hours-when distress was less severe. Parents of 36/150 of the children given delayed prescriptions used antibiotics, and 77% were very satisfied. Fewer children in the delayed group had diarrhoea (14/150 (9%) v 25/135 (19%), chi(2)=5.2, P=0.02). Fewer parents in the delayed group believed in the effectiveness of antibiotics and in the need to see the doctor with future episodes.

CONCLUSION

Immediate antibiotic prescription provided symptomatic benefit mainly after first 24 hours, when symptoms were already resolving. For children who are not very unwell systemically, a wait and see approach seems feasible and acceptable to parents and should substantially reduce the use of antibiotics for acute otitis media.

A neuropsychological-neuropathological case study of variant Creutzfeldt-Jakob disease

We report the first neuropsychological-neuropathological case study of a patient with variant Creutzfeldt-Jakob disease (vCJD) who was seen at the early stages of the disease, and whose cognitive functioning was monitored in the following months until his death. At presentation, his neuropsychological profile included impaired ability to retain new episodic information, deficits on tests of retrieval from semantic memory, and impairments on tests of memory for public knowledge, such as famous personalities. Tests of executive function were also performed poorly. Picture recognition memory and autobiographical memory were relatively spared, as was performance on tests of face perception and complex copying ability. Neuropsychological testing may be useful in monitoring the progression of vCJD, and we provide evidence to show a steady rate of decline in perceptual and naming tasks over a 4-month period. Post-mortem findings showed neuronal loss in the caudate, putamen, dorsal thalamus, cerebellum and occipital cortex. Spongiform changes were found throughout the brain, including the entorhinal cortex and anterior thalamus. Prion protein accumulation was noted in the hippocampus. We hypothesize that primary subcortical damage to structures in the thalamus and neostriatum, together with secondary frontal lobe dysfunction, combine to yield the pattern of neuropsychological impairment and neuropsychological sparing that was found.

Increased nerve growth factor mRNA in lateral calf skin biopsies from diabetic patients

AIMS

This study set out to establish a novel procedure for the measurement of human nerve growth factor (NGF) messenger ribonucleic acid (mRNA) and to use this method to measure NGF expression in skin biopsies from control subjects and from patients with early neuropathies. NGF mRNA levels were related to functional measures of the competence of NGF-responsive nerves.

METHODS

mRNA levels were measured by competitive reverse transcription with polymerase chain reaction amplification (cRT-PCR). Functional correlates of this observation were assessed by indices of thermal sensitivity--mediated by C-fibres, whose phenotype is regulated by NGF.

RESULTS

NGF mRNA was increased in skin biopsies from 19 diabetic patients (5.12+/-3.88 (SD)) compared with samples from eight controls (1.57+/-0.95; P=0.001). Diabetic patients showed significantly (P < 0.001) diminished detection of cool and warm stimuli compared to age matched control group (n=24), but there were no differences in detection of heat as pain, or correlation with NGF mRNA levels.

CONCLUSIONS

These findings suggest abnormally increased expression of NGF in diabetic neuropathy, which may represent a compensatory mechanism for impaired phenotype in NGF-responsive neurones.

Observations of glistening in the environment and its relationship to stereovision

The relationship between glistening and stereovision is explored. Glistening is defined as the existence of points of light in the field of view of the observer that are observed substantially in only one eye. We define each glistening point to be essentially a point of stereonoise. A theory of the probability of glistening is developed and shows that a threshold point for 100% glistening should exist. The results of field experiments are presented.

Functional magnetic resonance imaging studies of emotional processing in normal and depressed patients: effects of venlafaxine

BACKGROUND

Functional magnetic resonance imaging (fMRI) techniques were used to identify the neural circuitry underlying emotional processing in control and depressed subjects. Depressed subjects were studied before and after treatment with venlafaxine. This new technique provides a method to noninvasively image regional brain function with unprecedented spatial and temporal resolution.

METHOD

Echo-planar imaging was used to acquire whole brain images while subjects viewed positively and negatively valenced visual stimuli. Two control subjects and two depressed subjects who met DSM-IV criteria for major depression were scanned at baseline and 2 weeks later. Depressed subjects were treated with venlafaxine after the baseline scan.

RESULTS

Preliminary results from this ongoing study revealed three interesting trends in the data. Both depressed patients demonstrated considerable symptomatic improvement at the time of the second scan. Across control and depressed subjects, the negative compared with the positive pictures elicited greater global activation. In both groups, activation induced by the negative pictures decreased from the baseline scan to the 2-week scan. This decrease in activation was also present in the control subjects when they were exposed to the positive pictures. In contrast, when the depressed subjects were presented with the positive pictures they showed no activation at baseline, whereas after 2 weeks of treatment an area of activation emerged in right secondary visual cortex.

CONCLUSION

While preliminary, these results demonstrate the power of using fMRI to study emotional processes in normal and depressed subjects and to examine mechanisms of action of antidepressant drugs.