Factors influencing physicians' prescribing behaviour in the treatment of childhood diarrhoea: knowledge may not be the clue

Physician perception and recommendation of insulin pens for patients with type 2 diabetes mellitus

OBJECTIVE

To determine the way in which physicians perceive insulin pens and the factors that affect their recommendations and their patients' pen initiation/use.

RESEARCH DESIGN AND METHODS

Primary care physicians ( N = 300; 108 family practice, 192 internal medicine) and endocrinologists (N = 225) were recruited from national databases (IMS and AMA) to participate in an Internet survey. All data are self-reports. Measures include five dependent variables (the extent of suitability for patient segments, two pen-related behaviors--their frequency of presenting patients with the pen as a treatment option and strength of pen recommendation--and extent of their patients' pen initiation and use) and several potential correlates: practice characteristics; therapeutic philosophy and practices; perceptions of insulin pens (convenience, facilitation of self-care, blood glucose control efficacy, cost/coverage). Correlates of dependent variables were examined using multiple linear regression.

RESULTS

Significantly (p < 0.05) more patient pen use and/or successful pen initiation was reported by physicians who: (1) were more involved in clinical practice, were early adopters of clinical innovations or instructed their patients regarding insulin use; (2) reported less insulin mixing or therapeutic inertia; (3) perceived pens as efficacious and facilitating self-care; and (4) presented and recommended pens to their patients. More frequent presentation of pens to patients and/or stronger recommendation of pen use was reported by physicians who were early innovation adopters, reported less insulin mixing or therapeutic inertia, and perceived pens as convenient and efficacious (p < 0.05).

LIMITATIONS

The study is a cross-sectional survey using a self-administered questionnaire yielding unverified self-reports. Physicians treating few patients with diabetes mellitus or prescribing no insulin were excluded from the study.

CONCLUSIONS

Physicians' pen-related actions are a function of their personal and practice characteristics as well as their perceptions of pens. Physicians' presentation of pens as an option is strongly associated with perceived pen convenience, but physicians' pen recommendations and the estimated pen use/initiation of their patients are most strongly associated with the perception of clinically relevant pen attributes--glucose control efficacy and/or self-care facilitation.

The importance of context in malaria diagnosis and treatment decisions - a quantitative analysis of observed clinical encounters in Tanzania

OBJECTIVE

To gain a better understanding of the decision-making context in the diagnosis of malaria in order to inform behaviour change strategies, using quantitative methods.

METHODS

We observed hospital outpatient and inpatient consultations in northeast Tanzania where malaria testing was routinely available, recording potential influences on testing and prescribing decisions. We analysed the effects of variables at patient, clinical context and clinician levels on three key decisions in malaria diagnosis and treatment: decision to test for malaria, presumptive treatment and treatment of test-negative patients with antimalarials.

RESULTS

Observation of 2082 consultations took place during 120 clinics (different shifts on different days and in different departments) with 34 clinicians. Malaria tests were requested for 16.9% of patients. This decision was driven primarily by clinical symptoms. Of patients not tested for malaria, 36.0% were prescribed antimalarials, this decision being associated with both clinical and non-clinical factors. In outpatients fever was a strong predictor of presumptive treatment [adjusted odds ratio (AOR): 45.9, 95% CI: 30-73], in inpatients this was less so (AOR: 2.7, 95% CI: 0.98-7.7). Outpatient clinicians who were working alone or who had attended <2 in-service training sessions in the past year were more likely to prescribe antimalarials presumptively. The decision to prescribe antimalarials without also prescribing antibiotic treatment to 22.8% patients who tested negative for malaria was not driven by clinical symptoms but was associated with age over 5 years, lower patient load and male sex of clinician.

CONCLUSIONS

Non-clinical factors are important in the overdiagnosis of malaria. Strategies to target antimalarials and antibiotics better need to use methods that address the context of clinical decision making in addition to the dissemination of conventional clinical algorithms.

Guidelines and mindlines: why do clinical staff over-diagnose malaria in Tanzania? A qualitative study

Background

Malaria over-diagnosis in Africa is widespread and costly both financially and in terms of morbidity and mortality from missed diagnoses. An understanding of the reasons behind malaria over-diagnosis is urgently needed to inform strategies for better targeting of antimalarials.

Methods

In an ethnographic study of clinical practice in two hospitals in Tanzania, 2,082 patient consultations with 34 clinicians were observed over a period of three months at each hospital. All clinicians were also interviewed individually as well as being observed during routine working activities with colleagues. Interviews with five tutors and 10 clinical officer students at a nearby clinical officer training college were subsequently conducted.

Results

Four, primarily social, spheres of influence on malaria over-diagnosis were identified. Firstly, the influence of initial training within a context where the importance of malaria is strongly promoted. Secondly, the influence of peers, conforming to perceived expectations from colleagues. Thirdly, pressure to conform with perceived patient preferences. Lastly, quality of diagnostic support, involving resource management, motivation and supervision. Rather than following national guidelines for the diagnosis of febrile illness, clinician behaviour appeared to follow 'mindlines': shared rationales constructed from these different spheres of influence. Three mindlines were identified in this setting: malaria is easier to diagnose than alternative diseases; malaria is a more acceptable diagnosis; and missing malaria is indefensible. These mindlines were apparent during the training stages as well as throughout clinical careers.

Conclusion

Clinicians were found to follow mindlines as well as or rather than guidelines, which incorporated multiple social influences operating in the immediate and the wider context of decision making. Interventions to move mindlines closer to guidelines need to take the variety of social influences into account.

Why don't health workers prescribe ACT? A qualitative study of factors affecting the prescription of artemether-lumefantrine

BACKGROUND

Kenya recently changed its antimalarial drug policy to a specific artemisinin-based combination therapy (ACT), artemether-lumefantrine (AL). New national guidelines on the diagnosis, treatment and prevention were developed and disseminated to health workers together with in-service training.

METHODS

Between January and March 2007, 36 in-depth interviews were conducted in five rural districts with health workers who attended in-service training and were non-adherent to the new guidelines. A further 20 interviews were undertaken with training facilitators and members of District Health Management Teams (DHMTs) to explore reasons underlying health workers' non-adherence.

RESULTS

Health workers generally perceived AL as being tolerable and efficacious as compared to amodiaquine and sulphadoxine-pyremethamine. However, a number of key reasons for non-adherence were identified. Insufficient supply of AL was a major issue and hence fears of stock outs and concern about AL costs was an impediment to AL prescription. Training messages that contradicted the recommended guidelines also led to health worker non-adherence, compounded by a lack of follow-up supervision. In addition, the availability of non-recommended antimalarials such as amodiaquine caused prescription confusion. Some health workers and DHMT members maintained that shortage of staff had resulted in increased patient caseload affecting the delivery of the desirable quality of care and adherence to guidelines.

CONCLUSION

The introduction of free efficacious ACTs in the public health sector in Kenya and other countries has major potential public health benefits for Africa. These may not be realized if provider prescription practices do not conform to the recommended treatment guidelines. It is essential that high quality training, drug supply and supervision work synergistically to ensure appropriate case management.

Older patient perspectives on long-term anxiolytic benzodiazepine use and discontinuation: a qualitative study

OBJECTIVE

The objective of the study is to understand patient factors contributing to the chronicity of benzodiazepine use by older adults as a first step in the development of acceptable intervention strategies for taper/discontinuation or prevention of chronic use.

DESIGN

The design of the study consists of qualitative semi-structured patient interviews.

SETTING AND PARTICIPANTS

The participants were 50 anxiolytic benzodiazepine users, 61-95 years of age, recruited through referrals from primary care physicians who practiced in the general Philadelphia, Pennsylvania area.

RESULTS

Many older chronic users have come to rely and psychologically depend on benzodiazepines for their unique soothing properties, attributing to these medications characteristics that extend beyond an ordinary medication, i.e., affording control over daily stress, bringing tranquility, and even prolonging life. Most of the patients denied or minimized side effects and expressed resistance to taper or discontinuation, ranging from subtle reluctance to outright refusal and fear of being left suffering without these medications.

CONCLUSIONS

The reluctance of older chronic benzodiazepine users to taper or discontinue use highlights the importance of prevention and early intervention strategies to avoid the development of chronic use. Suggestions for curbing chronic use are presented.

Appropriate use of empirical antibiotics in acute diarrhoea: a cross-sectional survey in southern Thailand

BACKGROUND

Although treatment with empirical antibiotics is recommended for dysenteric or invasive bacterial diarrhoea, overuse is common in clinical practice worldwide. Recent information on the use of antibiotics in Thai children with acute diarrhoea is lacking.

OBJECTIVE

To survey the appropriate use of empirical antibiotics in children with acute diarrhoea in hospitals in southern Thailand and evaluate the association between their use and clinical features.

METHODS

Outpatient medical records of children aged 2 months to 5 years with acute diarrhoea seen at ten hospitals in southern Thailand (five community and five general hospitals) during January to December 2004 were reviewed. Children with diarrhoeal symptoms lasting >7 days, who were immunocompromised, who had an underlying disease or whose medical records were inadequate were excluded. Appropriate use of empirical antibiotics was defined as: use of an antibiotic in a child with a history of bloody-mucous diarrhoea, who had a faecal WBC count of >10 cells/HPF, or no prescription of antibiotics in watery, non-bloody diarrhoea.

RESULTS

There were 2882 patient encounters, 70% of which were children under 2 years of age. Invasive bacterial diarrhoea comprised 6.9% of the total number of cases. Of the 2882 patient encounters, 50.3%, 36.4% and 13.3% were seen by general practitioners, paediatricians or other medical personnel, respectively. Antibiotics had been used appropriately in 44.1% of cases. Of the 55.9% of cases identified as inappropriate use, 55.2% involved unnecessary antibiotic prescriptions in non-indicated cases. The prevalence of appropriate use was significantly higher in general hospitals than in community hospitals (51% vs 37.1%, p<0.05). Medical trainees were more likely to prescribe antibiotics more appropriately than staff physicians (76.9% vs 44.2%, p<0.05). Multivariate analysis showed that a history of fever (OR 1.25, 95% CI 1.04-1.50), watery-mucous stool (OR 2.54, 95% CI 1.94-3.32), mushy-mucous stool (OR 2.62, 95% CI 1.28-5.35), bloody-mucous stool (OR 6.97, 95% CI 4.17-11.64), stool frequency of 5-10 times/day (OR 1.41, 95% CI 1.16-1.70), body temperature 38.6-39.5 degrees C (OR 1.86, 95% CI 1.17-2.98) and a faecal WBC count of even 1-10 cells/HPF (OR 3.24, 95% CI 1.55-6.77) were associated with antibiotic use.

CONCLUSION

Overuse of antibiotics in the treatment of acute diarrhoea in children is common. The prevalence differs between different levels of hospitals and different types of medical personnel. Physicians might mistake some patients' clinical features of diarrhoea as features of dysentery, leading to unnecessary prescription of antibiotics.

Topical corticosteroids in infants: prescribing pattern and prescribing errors in Bahrain

OBJECTIVE

A nationwide, primary care-based prescription audit in infants to determine the prescribing pattern and prescribing errors of topical corticosteroid preparations in Bahrain.

METHOD

Prescriptions dispensed for infants were collected for two successive weeks from 20 primary-care health centres.

RESULTS

Among 2282 out of 102,084 prescriptions (2.2%) dispensed for infants, 296 (13.0%) had corticosteroids for topical application to the skin, eye and ear. Plain corticosteroids comprised 6.7%, whereas corticosteroids with antiinfectives accounted for 6.3% of topical corticosteroid preparations. Based on potency the proportions of corticosteroids prescribed were: mild (6.7%), moderately potent (2.6%) and potent (3.7%). The frequency of dosing and length of therapy were not stated in 21.6% and 43.6% of prescriptions, respectively. Base cream as a dilutional vehicle was prescribed in 11.2% (11/98) and 32.4% (12/37) prescriptions containing hydrocortisone acetate 1% cream and betamethasone valerate 0.1%, respectively. In few instances two corticosteroids were concomitantly prescribed.

CONCLUSION

Prescribing moderate-to-potent topical preparations in approximately half of the infants, co-prescription of multiple corticosteroid preparations, omission of important components of prescription, and resorting to the controversial vehicle diluting technique suggest that topical corticosteroid therapy is sub-optimal. In infants, topical corticosteroids should be rationally prescribed. Establishing the treatment guidelines, pharmacovigilance programme and revision of the primary care essential drug list are needed in Bahrain.

Effect of multiple interventions on community health workers' adherence to clinical guidelines in Siaya district, Kenya

Evaluation of a community health worker (CHW) programme in Siaya district, Kenya, showed CHWs commonly made errors in managing childhood illness. We assessed the effect of multiple interventions on CHW healthcare practices. A sample of 192 ill-child consultations performed by 114 CHWs in a hospital outpatient department between February and March 2001 were analysed. The mean percentage of assessment, classification and treatment procedures performed correctly for each child was 79.8% (range 13.3-100%). Of the 187 children who required at least one treatment or referral to a health facility, only 38.8% were prescribed all treatments (including referral) recommended by the guidelines. Multivariate analyses found no evidence that the intervention-related factors studied (refresher training, supervision, involvement of community women in the CHW selection process, adequacy of medicine supplies, and use of a guideline flipchart during consultations) were significantly associated with overall or treatment-specific guideline adherence. A multivariate linear regression analysis revealed that several non-intervention-related factors, such as patient characteristics, were significantly associated with overall guideline adherence. Given that our study was cross-sectional and our measurement of exposure to several interventions was based on CHW recall, the estimated effects of the interventions should be interpreted with caution. Despite these limitations, however, our results raise questions about the effectiveness, in the setting of Siaya district, of several interventions commonly used to improve the quality of care given by CHWs.

Predictors of treatment error for children with uncomplicated malaria seen as outpatients in Blantyre district, Malawi

BACKGROUND

Past studies have shown that health workers in developing countries often do not follow clinical guidelines, though few studies have explored with appropriate methods why errors occur. To develop interventions that improve health worker performance, factors affecting treatment practices must be better understood.

METHODS

We analysed data from a health facility survey in Blantyre District, Malawi, in which health workers were observed treating ill children, and then children were independently re-examined by 'gold-standard' study clinicians. The analysis was limited to children with uncomplicated malaria (defined according to Malawi's guidelines as fever or anaemia without signs of severe illness), and a treatment error was defined as failure to treat with an effective antimalarial.

RESULTS

Twenty-eight health workers and 349 ill-child consultations were evaluated; 247 (70.8%) children were treated with an effective antimalarial, and 102 (29.2%) were subject to treatment error. Logistic regression analysis revealed that in-service malaria training was not associated with treatment quality (univariate odds ratio (OR) = 1.16, 95% confidence interval (CI): 0.46-2.93); whereas acute respiratory infections training was associated with making an error (adjusted OR (aOR) = 2.42, 95% CI: 1.23-4.76). High fever and chief complaint of fever were associated with fewer errors (aOR = 0.25, 95% CI: 0.10-0.60 and aOR = 0.25, 95% CI: 0.13-0.48, respectively). Errors were more likely to occur in consultations starting before 1 p.m. (aOR = 1.88, 95% CI: 1.07-3.31). Supervision was not associated with better treatment quality.

CONCLUSIONS

These results suggest that the disease-specific training and supervision, performed before the survey, did not lead to long-term improvements in health care quality. Furthermore, case management training for one specific disease may have worsened quality of care for another disease. These results support integration of guidelines for multiple conditions. Interventions should be evaluated for unintended negative effects on overall quality of care.

Can malaria be controlled where basic health services are not used?

OBJECTIVE

To assess the potential of integrating malaria control interventions in underused health services.

METHODS

Using the Piot predictive model, we estimated malaria cure rates by deriving parameters influencing treatment at home and in health facilities from the best-performing African malaria programmes and applying them to Yanfolila district, Mali.

RESULTS

Without any malaria control intervention, the population cure rate is 8.4% with home treatment, but would be 13% if access to timely treatment were improved (as in Kenya). A further 3.2% of malaria patients could be cured in institutional settings with more sensitive diagnosis, timely start of treatment, better compliance (as in Uganda, Tanzania, Ghana) and 80% chloroquine efficacy. Applied in a setting where 7.6% of malaria patients seek institutional care, these assumptions would result in a total population cure rate of 14.5%. Increasing the health service user rate from 0.17 in Yanfolila to 0.95 new cases/inhabitant/year (as in Namibia) would result in half of all malaria patients attending professional services, raising the cure rate to 26.1%.

CONCLUSION

If malaria patients are to be treated and followed-up early and appropriately, basic health services need to deliver integrated care and be attended by an adequate pool of users. Improved service user rates and case management can increase malaria cure rates far more than isolated control interventions can. This has implications for international policies endorsing a narrow disease-based approach.

Healthcare reform involving the introduction of user fees and drug revolving funds: influence on health workers' behavior in southeast Nigeria

OBJECTIVES

To assess the perceptions of health workers towards the drug revolving fund (DRF) scheme and the perceptions of the community members about health workers since the introduction of the DRF.

METHODS

The study was conducted in four purposively selected local government areas (LGAs) in southeast Nigeria where the Bamako initiative DRF was operational. Data was collected using in-depth interviews with randomly selected health workers and exit interviews with patients who attended the health centers.

RESULTS

There were differences between the ways the DRF affected health workers in the different LGAs. In general, the motivation of the health workers to deliver health services improved significantly largely because they had basic drugs to work with and they benefited from the drug gains accruing through the operations of the DRF. However, as time went on, some got de-motivated and their attentions became more focused on revenue generation and profit making through sale of own drugs at the expense of health of the people as no incentives were paid and salaries were delayed. Curative services were provided more than promotive and preventive services and drugs are prescribed irrationally. Patients showed wide spread dissatisfaction with fees charged, waiting time before being seen, and treatment instructions given to them.

CONCLUSION

Governments need to focus not only on the provision of drugs and revenue generation but also on providing strong support for in-service training, monitoring and supervisory activities to improve health workers' attitude to work. The governments also need to explore incentives such as working condition and monetary incentives to motivate health workers to improve their performance so as to serve the consumers better.

The World Bank, pharmaceutical policies, and health reforms in Latin America

Health care systems spend a relatively high percentage of their resources on the purchase of medicines, and the poor spend a disproportionate amount of their income on pharmaceuticals. There is ample evidence in the literature that drugs are very poorly used. World Bank-led health reforms aim at improving equity, efficiency, quality, and users' satisfaction, and it will be difficult to achieve these goals without making medicines accessible and affordable. The purpose of this article is to examine the adequacy of World Bank pharmaceutical policies, as recommended in various Bank documents, for Latin America and to examine the implementation of the policy recommendations. The authors found that the World Bank identified and recommended a set of pharmaceutical policies that matched the needs of the region. But, as revealed through fieldwork and a review of the literature, the recommended pharmaceutical interventions were left out of the health reforms, and most of the loans that included pharmaceutical interventions allocated funds only to the purchase of drugs. The authors formulate four hypotheses that may explain the lack of congruence between the recommended policies and the strategies financed by World Bank health reform loans to the Latin American region.

Effect of the Integrated Management of Childhood Illness strategy on health care quality in Morocco

OBJECTIVE

To evaluate an intervention to promote health workers' use of the World Health Organization's Integrated Management of Childhood Illness clinical guidelines and to identify other factors influencing quality of care received by Moroccan children.

SETTING

Public outpatient health facilities.

DESIGN

Cross-sectional survey of consultations with sick children under 5 years old at facilities in two intervention and two comparison provinces in April 2000 (6-12 months after intervention). Consultations were observed, children's caretakers and health workers were interviewed, and children were re-examined by a 'gold standard' study clinician.

STUDY PARTICIPANTS

Probability sample of 467 consultations (97.9% participation) performed by 101 health workers in 62 facilities.

INTERVENTION

Health workers received in-service training with job aids and a follow-up visit with feedback 4-6 weeks after training.

MAIN OUTCOME MEASURES

Index of overall guideline adherence (mean percentage of recommended tasks that were done per child) and the percentage of children requiring antibiotics correctly prescribed antibiotics.

RESULTS

Quality of care was better in intervention provinces, according to the adherence index (79.7 versus 19.5%, P < 0.0001), correct prescription of antibiotics (60.8 versus 31.3%, P = 0.0013), and other indicators. Multivariate modeling revealed a variety of factors significantly associated with quality, including health worker attributes (pre-service training, residence in government-subsidized housing, sex, and opinions) and child/consultation attributes (child's age and temperature, number of chief complaints, and caretaker type).

CONCLUSIONS

Exposure to the intervention was strongly associated with adherence to the guidelines and correct prescribing of antibiotics 6-12 months after exposure. Many other factors may influence health worker performance.

Resistance to insulin therapy among patients and providers: results of the cross-national Diabetes Attitudes, Wishes, and Needs (DAWN) study

OBJECTIVE

To examine the correlates of patient and provider attitudes toward insulin therapy.

RESEARCH DESIGN AND METHODS

Data are from surveys of patients with type 2 diabetes not taking insulin (n = 2,061) and diabetes care providers (nurses = 1,109; physicians = 2,681) in 13 countries in Asia, Australia, Europe, and North America. Multiple regression analysis is used to identify correlates of attitudes toward insulin therapy among patients, physicians, and nurses.

RESULTS

Patient and provider attitudes differ significantly across countries, controlling for individual characteristics. Patients rate the clinical efficacy of insulin as low and would blame themselves if they had to start insulin therapy. Self-blame is significantly lower among those who have better diet and exercise adherence and less diabetes-related distress. Patients who are not managing their diabetes well (poor perceived control, more complications, and diabetes-related distress) are significantly more likely to see insulin therapy as potentially beneficial. Most nurses and general practitioners (50-55%) delay insulin therapy until absolutely necessary, but specialists and opinion leaders are less likely to do so. Delay of insulin therapy is significantly less likely when physicians and nurses see their patients as more adherent to medication or appointment regimens, view insulin as more efficacious, and when they are less likely to delay oral diabetes medications.

CONCLUSIONS

Patient and provider resistance to insulin therapy is substantial, and for providers it is part of a larger pattern of reluctance to prescribe blood glucose-lowering medication. Interventions to facilitate timely initiation of insulin therapy will need to address factors associated with this resistance.

How can we achieve and maintain high-quality performance of health workers in low-resource settings?

In low and middle income countries, health workers are essential for the delivery of health interventions. However, inadequate health-worker performance is a very widespread problem. We present an overview of issues and evidence about the determinants of performance and strategies for improving it. Health-worker practices are complex behaviours that have many potential influences. Reviews of intervention studies in low and middle income countries suggest that the simple dissemination of written guidelines is often ineffective, that supervision and audit with feedback is generally effective, and that multifaceted interventions might be more effective than single interventions. Few interventions have been evaluated with rigorous cost-effectiveness trials, and such studies are urgently needed to guide policy. We propose an international collaborative research agenda to generate knowledge about the true determinants of performance and about the effectiveness of strategies to improve performance. Furthermore, we recommend that ministries of health and international organisations should actively help translate research findings into action to improve health-worker performance, and thereby improve health.

Antimicrobial resistance in developing countries. Part II: strategies for containment

The growing threat from resistant organisms calls for concerted action to prevent the emergence of new resistant strains and the spread of existing ones. Developing countries have experienced unfavourable trends in resistance-as detailed in part I, published last month--and implementation of many of the containment strategies recommended by WHO is complicated by universal, as well as developing country-specific, factors. The control of selective pressure for resistance could potentially be addressed through educational and other interventions for orthodox and unorthodox prescribers, distributors, and consumers of antimicrobials. At national levels, the implementation of drug use strategies--eg, combination therapy or cycling--may prove useful to lengthen the lifespan of existing and future agents. Programmes such as the Integrated Management of Childhood Illnesses (IMCI) and directly observed short-course therapy (DOTS) for tuberculosis are prescriber-focused and patient-focused, respectively, and have both been shown to positively influence factors that contribute to the selective pressure that affects resistance. The institution of interventions to prevent the transmission of infectious diseases could also lead to beneficial effects on the prevalence of resistance, as has vaccination against Haemophilus influenzae type B and Streptococcus pneumoniae. There has been an upsurge in the number of organisations and programmes that directly address issues of resistance, and collaboration could be one way to stem the dire trend. Additional factors such as unregulated drug availability, inadequate antimicrobial drug quality assurance, inadequate surveillance, and cultures of antimicrobial abuse must be addressed to permit a holistic strategy for resistance control.

Evaluating the treatment of hypertension in diabetes mellitus: a need for better control?

OBJECTIVES

To determine how well and to what extent blood pressure (BP) is controlled in diabetic hypertensive patients treated by primary care doctors, and to evaluate drug therapy in the backdrop of risk factors and laboratory findings.

METHODS

A therapeutic audit of the medical records of diabetic hypertensives from nine primary care health centres in Bahrain.

RESULTS

In 266 diabetic hypertensives (82 males and 184 females), the recommended target BP < 130/< 85 mmHg (WHO/ISH guidelines, 1999) was achieved in 20 (9.8%) with a BP of 119 +/- 4/76 +/- 5 mmHg. Among those who did not achieve target BP, 70 (34.5%) lacked systolic BP control (BP = 153 +/- 17/79 +/- 3 mmHg), four (2%) lacked diastolic BP control (BP = 123 +/- 3/86 +/- 3 mmHg) and 109 (53.7%) lacked both systolic and diastolic BP control (BP = 158 +/- 20/94 +/- 7 mmHg). The mean age of the group achieving target BP was significantly lower than the group which lacked systolic BP control (51.6 +/- 9 vs. 63.5 +/- 9 years; P < 0.0001). While there were no significant differences in fasting blood glucose, glycosylated haemoglobin, triglycerides, urea, creatinine, uric acid and serum electrolytes between the group achieving target BP vs. groups without target BP, a significant difference in total cholesterol was seen.

PATIENTS

with ischaemic heart disease and/or isolated systolic hypertension did not achieve the target BP. Antihypertensive monotherapy was prescribed in 145 (54.5%) patients, whereas two- and three-drug combinations were prescribed in 32.3 and 8.2% of patients, respectively. As monotherapy, angiotensin-converting enzyme (ACE) inhibitors were the most frequently prescribed drugs followed by beta-blockers, calcium channel blockers (CCBs) and diuretics. As two-drug combinations, an ACE inhibitor with a beta-blocker/diuretic and a beta-blocker with a CCB/diuretic were usually prescribed.

CONCLUSIONS

According to the WHO/ISH 1999 guidelines, approximately one out of 10 diabetic hypertensives achieved target BP control. In many instances, the drug therapy prescribed was inappropriate considering the comorbidity in patients and their laboratory findings. Improved BP control is needed in treating high-risk groups such as patients with diabetes mellitus, and efforts should be made to improve the treatment of hypertension in the primary care setting.

Improving antibiotic use in low-income countries: an overview of evidence on determinants

The inappropriate use of antibiotics has often been identified as a problem in effective health care delivery. High levels of antibiotics use, often clinically unnecessary, have led to a steady increase in drug resistance. Low-income countries, home to the majority of the world's population, are believed to have an important role in this phenomena. Effective intervention in these practices is often constrained by the paucity of information on determinants of antibiotic use. This review provides information from studies on the factors that influence the use of antibiotics by health providers, dispensers and community members in low-income countries. A proper understanding of these factors should be seen as a precondition for the development of more effective policies and programmes to address inappropriate antibiotic use. The review encompasses physicians' practices, the role of drug dispensers, and the influences on patterns of drug use across community members. Although a set of papers with useful research data was identified, probably the most important finding of the review was the scarcity of research. If interventions into antibiotic use are to be effective, future research must explore in more depth the socio-cultural rationality of antibiotic usage. The most productive approach would be to combine quantitative studies of the patterns of antibiotic use with the rich variety of qualitative methods like case simulations, focus group discussions, in-depth interviews, informal interviews, or illness diaries to explore determinants.Research programmes alone are unlikely to improve antibiotic use. Priority programme activities would include a carefully designed mix of activities by governments, health delivery systems, health training institutions, professional societies, pharmaceutical companies, consumer organisations, and international organisations. Strategies that lean too heavily on professional education are unlikely to result in large-scale or long-lasting improvement.

Variation in physicians' definitions of the competent parent and other barriers to guideline adherence: the case of pediatric minor head injury management

A lack of consensus regarding the definition of even an everyday term can affect physician adherence to clinical guidelines using that term. We demonstrate this by taking, as an illustrative case, the American Academy of Pediatrics' minor head injury (MHI) management guidelines, which generally recommend at-home observation by a "competent" parent (or the equivalent). The recommendation assumes consensus among physicians as to what parental competence comprises. We systematically examined this assumption. Physicians associated with Children's Hospital, San Diego were mailed a survey asking them to freely list terms defining parental competence. Independent variables were: physician gender, training, specialty, practice location, patient age mix, years in practice, and number of MHI cases seen per year. Dependent variables were: free-list content and length, ease and style of competence decision-making style (e.g., independent or collaborative), familiarity with the guidelines, and likelihood of ordering a computed tomography (CT) scan. Of 112 respondents, 34 (30%) were "not at all" or only "slightly" familiar with the guidelines; 23% (21/112) "frequently" or "sometimes" ordered CTs when the guidelines did not support this. Surgeons were more likely to order discretionary CTs. Office-based, pediatric-trained, and female physicians each found it significantly easier than their counterparts to determine which parents were, in their opinion, competent. Men reported using "objective" criteria significantly less frequently than women. A total of 64 discrete criteria were listed. Individual lists contained an average of 6.5 items. Surgeon's lists were significantly shorter than those of medical physicians. Seven sub-domains of competence were identified. Parental competence is not a unitary construct interpreted similarly by all physicians. Subgroups with distinct models may exist; training and specialization may be key variables. To decrease MHI management variation, guidelines should specify parental competence factors to be considered; they may need to be tailored to different physician subgroups.

A plea for an initiative to strengthen family medicine in public health care services of developing countries

An analysis of standards for the best practice of family medicine in Northern European countries provides a framework for identifying the difficulties and deficiencies in the health services of developing countries, and offers strategies and criteria for improving primary health care practice. Besides well-documented socioeconomic and political problems, poor quality of care is an important factor in the weaknesses of health services. In particular, a patient-centered perspective in primary care practice is barely reflected in the medical curriculum of developing countries. Instead, public sector general practitioners are required to concentrate on preventive programs that tackle a few well-defined diseases and that tend to be dominated by quantitative objectives, at the expense of individually tailored prevention and treatment. Reasons for this include training oriented to hospital medicine and aspects of GPs' social status and health care organization that have undermined motivation and restricted change. A range of strategies is urgently required, including training to improve both clinical skills and aspects of the doctor-patient interaction. More effective government health policies are also needed. Co-operation agencies can contribute by granting political protection to public health centers and working to orient the care delivered at this level toward patient-centered medicine.

Provider bias in the treatment of diarrhea among boys and girls attending public facilities in Minia, Egypt

Girls' excess mortality in early childhood persists in all regions of the world and has been attributed to parental discrimination in the allocation of food and healthcare. Consequently, researchers have paid scant attention to the potential for unequal treatment of boys and girls by health providers. Data from a longitudinal study of child morbidity conducted between 1995 and 1997 in Minia, Egypt are used to compare the frequency with which diarrheal cases of boys and girls were treated with oral rehydration solution (ORS) among children ever presenting at a formal source of care. Multivariate analysis suggests that public providers have marginally higher adjusted odds of administering ORS to boys than to girls and significantly higher adjusted odds of giving and recommending ORS to the caretakers of boys than of girls. Findings expose a need for further research on the supply side determinants of girls' disadvantaged treatment in Upper Egypt and in other settings where son preference persists.

Factors influencing private health providers' technical quality of care for acute respiratory infections among under-five children in rural West Bengal, India

In many developing countries, private health practitioners provide a significant portion of curative care for diseases which are of public health importance. Currently, health sector reform efforts in these countries are fostering increased participation of private providers in the delivery of health services, including those of public health importance. Guaranteeing good technical quality of care is critical to the process. However, little is known about private providers' technical quality of care (disease management practices) and the factors influencing these services. The purpose of this study was to contribute information on this topic. The study was conducted among private providers in rural West Bengal, India and focused on providers' disease management practices for acute respiratory infections (ARI) among under-five children. World Health Organization (WHO) guidelines for ARI case management were used as the expected standard of care. Observations of patient-provider encounters and interviews with the providers and mothers were the main sources of data. The study found that private health providers in rural West Bengal have inadequate technical quality of care. The problem was related both to low levels of performance (limited potential) and inconsistency in performance (within-provider variation). Limited potential for good technical quality for ARI among the providers was related to lack of knowledge (technical incompetence). One of the important factors influencing within-provider variation was patient load. Since rural private providers operate on a fee-for-service payment system, there are incentives related to seeing many patients. The study concluded that to bring about sustainable improvements in private providers' ARI disease management practices, training programs and interventions that improved compliance were necessary.

Applying evidence and theory to guide clinical decision making--implications for asthma management

Evidence-based medicine has been described as the "conscientious, explicit and judicious use of current best evidence in making decisions about the healthcare of individual patients". Many sources of information may be used by doctors when making decisions about initiating asthma therapy. These include: personal experience, postgraduate education, continuous professional development and publications in peer-reviewed journals. However, despite these sources of information, available data suggest that it is often difficult to practice evidence-based medicine, particularly in general practice. In the future, physicians will be provided with better evidence of the relative efficacy of treatment to aid changes in clinical practice. This will be provided, in part, by large well-conducted clinical trials, systematic reviews and meta-analyses. Linked with these, will be other methods of presenting data, for example, the number of patients needed to treat (NNT) to prevent one clinically significant event (for example, an asthma exacerbation). Despite these advances, incorporation of evidence-based practice into routine asthma care will be a slow and complex process. However, this process can be facilitated by physician education and participation in intervention programmes. In addition, it is important that clinicians are trained in how to convey the best possible evidence to their asthma patients.

The influence of user fees and patient demand on prescribers in rural Nepal

Irrational prescribing and over-prescription is a world-wide problem. Prescribers often cite patient demand as one of the main reasons why they over-prescribe, but the degree to which this is so is unknown. This article describes a study to test the hypothesis that patient demand causes over-prescription. The study occurred within the context of different kinds of nominal user fee for drugs in Nepal, where it was assumed that charging per drug item would deter patient demand, and hence over-prescription, as compared to charging per prescription. Focus group discussions with patients attending rural health facilities explored patient attitudes towards drugs. Patients and health workers were interviewed to gather quantitative data on (1) patient demand, and (2) health worker views of patient demand and their own prescribing habits, and comparing these with the drugs actually prescribed and dispensed to patients. Patients felt they needed more drugs than they were prescribed or dispensed, but stated that they would be happy to accept advice from prescribers for fewer drugs. In all areas of whatever fee type, there was no association between the number of drug items patients felt they needed pre-consultation and the number of drug items that they actually received as observed postconsultation. However, there was a significant association between the average number of drug items per patient that prescribers stated they usually prescribed and the actual number that were prescribed. It was concluded that patient demand was not affected by different kinds of user fee and did not directly influence prescribing behaviour.

[Evaluating the potential of an intervention aimed at promoting oral rehydration therapy (ORT) by educating pharmacy employees]

Diarrhea is a major cause of morbidity and mortality in childhood, and Brazilians rely heavily on pharmacies for the resolution of this and other health problems. To promote the rational use of both pharmaceuticals and oral rehydration therapy (ORT), an intervention study was performed in pharmacies in Southwestern Brazil. Semi-structured interviews showed oral rehydration solution, or ORS (50%), antidiarrheals (39%), trimethoprim-sulfamethoxazole (27%), and yeast (22%) to be the most frequently suggested drugs, whereas questionnaire responses were ORS (75%), trimethoprim-sulfamethoxazole (25%), and yeast (25%), thus revealing that more than one methodology is needed if reliable data are to be obtained. An educational intervention was applied to 86.7% of pharmacies, but acquisition of knowledge on management of diarrhea did not prevent pharmacy workers from suggesting antidiarrheal drugs instead of ORS alone. In order to have pharmacy workers comply with official protocols for episodes of diarrhea, interventions should include regulatory measures on drugs that are contraindicated for children, and the role of pharmacies and pharmacists should be reviewed.

Management of childhood illness at health facilities in Benin: problems and their causes

OBJECTIVES

To prepare for the implementation of Integrated Management of Childhood Illness (IMCI) in Benin, we studied the management of ill children younger than 5 years at outpatient health facilities.

METHODS

We observed a representative sample of consultations; after each consultation, we interviewed caregivers and reexamined children. Health workers' performance was evaluated against IMCI guidelines. To identify determinants of performance, statistical modeling was performed and 6 focus groups with health workers were conducted to solicit their opinions.

RESULTS

Altogether, 584 children were enrolled and 101 health workers were observed; 130 health workers participated in focus group discussions. Many serious deficiencies were found: incomplete assessment of children's signs and symptoms, incorrect diagnosis and treatment of potentially life-threatening illnesses, inappropriate prescription of dangerous sedatives, missed opportunities to vaccinate, and failure to refer severely ill children for hospitalization. Quantitative and qualitative analyses showed various health facility-, health worker-, caregiver-, and child-related factors as possible determinants of health worker performance.

CONCLUSIONS

Action is urgently needed. Our results suggest that to improve health care delivery, interventions should target both the health system and the community level.

[Health problems among the Kaingáng (Xapecó Indigenous Reserve, Santa Catarina) and the health care system]

The second semester of 1999 was a transition period for the implementation of the Special Indigenous Health District on the Xapecó Indigenous Reserve in western Santa Catarina State. The health clinic in the main village provided treatment with a staff including a general practitioner/obstetrician, pediatrician, dentist, nurse, two nursing assistants, and four nursing technicians. This paper presents the preliminary results of research on the organization of these health care services, their use by the community, and the health/disease profile of the Kaingáng, using patient files as the source of information. In September 1999, a total of 222 Indians were treated (children and adults), 50.5% of whom residing in the main village. Among the Indians ages 0 to 14 years, infectious and parasitic diseases were the most frequent, supporting the idea that the Kaingáng have precarious sanitary and nutritional conditions. Use of the clinic by adults was more varied, since of the 116 who appeared for consultation, 27 were pregnant women (out of a total of 86 women). In addition, prescriptions were written up for children and adults in 85.0% and 81.8% of the consultations, respectively.

Improving the use of pharmaceuticals through patient and community level interventions

Pharmaceuticals represent an increasing share of private and public health care expenditures. However, while most governments are interested in ensuring availability and access to drugs, the issue of adequate use of drugs remains a low priority in most third world countries. This paper summarizes the results of interventions conducted in developing countries aimed at improving patients' compliance with the advice of health professionals and/or to decrease the unnecessary use of drugs by the general population. Forty-five studies were identified through literature searches and networking; and only about a third of them fulfilled the eligibility criteria for inclusion in the review. Given the paucity of information available and the importance of the topic the authors report on all 45 studies identified. Although much remains to be explored there are several interventions that deserve to be highlighted. The authors argue that improving the use of pharmaceuticals through interventions directed only to consumers may have a small impact and suggest that in order to obtain meaningful changes it might be necessary to design interventions to modify the behavior of all the actors in the medication cycle (manufacturers, health professionals, retailers, consumers and governments). They suggest that the extraordinary therapeutic effects of antibiotics, coupled with the problems that may arise when they are inappropriately used and with the extraordinary amount of resources spent on antibiotics worldwide justify a global effort to reduce their inappropriate use and promote their adequate administration. The complexity of this type of intervention would require the support of the pharmaceutical industry, governments, private foundations, and international organizations.

The behaviour of health workers in an era of cost sharing: Ghana's drug cash and carry system

This qualitative study aimed to assess possible changes in prescription patterns and resultant implications for the quality of care delivered in three southern districts of Ghana after the introduction of a full cost recovery scheme for drugs in 1992. While the availability of safe and effective drugs has improved especially in rural areas, not all patients are able to meet the cost for required medication. This has influenced the behaviour of most prescribers, who now take economical limitations into account. As a result, poorer patients may either take fewer drugs or smaller quantities than medically indicated, with possible ensuing consequences for public health. Overall, the cash-and-carry scheme does not appear to have changed health workers' attitudes towards patients; where such behavioural changes occurred they seemed to be due to personnel shortages. Generally, patients in rural facilities reported greater satisfaction with the care they received than urban residents; and medical assistants were perceived as friendlier than both nurses and doctors.

Socioeconomic and behavioral factors leading to acquired bacterial resistance to antibiotics in developing countries

In developing countries, acquired bacterial resistance to antimicrobial agents is common in isolates from healthy persons and from persons with community-acquired infections. Complex socioeconomic and behavioral factors associated with antibiotic resistance, particularly regarding diarrheal and respiratory pathogens, in developing tropical countries, include misuse of antibiotics by health professionals, unskilled practitioners, and laypersons; poor drug quality; unhygienic conditions accounting for spread of resistant bacteria; and inadequate surveillance.