Antibiotic prescribing for children with nasopharyngitis (common colds), upper respiratory infections, and bronchitis who have health-professional parents

Prescribing antibiotics for children with dengue infection in Taiwan: who are at risk and who are high prescribers?

Inappropriate antibiotic use contributes to antimicrobial resistance, a global public health threat. The non-specific manifestations of dengue, itself a growing public health threat, lead to avoidable empiric antibiotic prescription, particularly in children. In this national pooled population-based cross-sectional study, we evaluated child and physician characteristics associated with antibiotics prescription in confirmed dengue cases in Taiwan. Linking national health care insurance claims and reports of confirmed dengue cases from 2008 to 2015, there were 7086 children with confirmed dengue with 21 744 outpatient visits and 2520 inpatient admissions. We assessed the presence of antibiotic prescription in outpatient and inpatient settings separately a week before or after the confirmation date. Logistic regression models with generalized estimating equations were applied to identify patient, practitioner, and other factors associated with antibiotic prescription. A total of 29.4% of children <18 years old with dengue who did not have a concomitant bacterial infection were prescribed antibiotics during the 14-day assessment period. Antibiotics prescription was reduced from 13.5% to 6.3% and from 43.2% to 19.3% in outpatient and inpatient settings, respectively, after dengue was confirmed. Young children were more likely to receive antibiotics. Significant variations in antibiotic prescribing across physicians were observed only in outpatient settings: physicians ≥60 years old and physicians practicing at clinics and in non-urban facilities were more likely to prescribe antibiotics. Antibiotics were less likely to be prescribed during an exceptional 2-year epidemic than in other years. Antibiotic prescribing for dengue, an arboviral infection affecting half of the global population, was shown to occur in 29% of paediatric cases in Taiwan. That potentially avoidable antibiotic consumption could be reduced by improving antibiotic stewardship, informed by understanding the conditions under which antibiotics are prescribed and the availability of prevention strategies for viral diseases, including dengue. We identified a number of such factors in this national population-based study.

Validation of a whole blood machine learning strategy for distinguishing between bacterial and viral infection in a pediatric hospital setting

Similar symptoms between viral and bacterial diseases often make diagnosis difficult. This study assessed the clinical performance of the newly cleared whole-blood Bacterial versus Viral Score assay in our pediatric cohort to the previously validated serum assay and emergency department physician diagnosis. This assay shows excellent agreement (R = 0.997) with the serum assay and has great diagnostic accuracy when compared to physician diagnosis.

Parents' Perspective of Antibiotic Usage in Children: A Nationwide Survey in Italy

BACKGROUND

Antibiotics represent the most widely prescribed drugs in children worldwide, both in hospital and community settings. A comprehensive approach to understanding the reasons and determinants of antibiotic prescription in the pediatric age is needed. This study aimed to assess parents' attitudes and perspectives about antibiotic use.

METHODS

Prospective observational study was conducted in all Italian Regions between February 1 and April 30, 2020, using a standardized questionnaire.

RESULTS

Six thousand six hundred twenty-five parents from all Italian regions completed the survey. Seventy-six percent of parents were aware that only bacteria are the target of antibiotics, but 92.9% knew that the antibiotic has no direct effect on fever. Antibiotic self-prescription (10.4%) or by remote consultation by phone call (19.9%) or message (9.6%) were relatively common. Ninety-three percent of parents were aware that excessive use of antibiotics could select resistant bacteria and 84.7% of them knew that they could actively fight antibiotic resistance. About two thirds of participants (66.1%) received information on antibiotic resistance from their family pediatrician. Parents born of Italy or those with lower income had a higher probability of having less information from pediatricians or knowledge of proper antibiotic use.

DISCUSSION

Our study suggests that parents' knowledge and attitudes toward antibiotic use and prescription are improving compared with previous studies, while there is still a gap regarding antibiotic resistance, particularly on practices that can reduce its burden. Our study's negative finding is that families from low-income settings or those born abroad have significantly more misconceptions about important antibiotic practices.

Parental knowledge and practice on antibiotic use for upper respiratory tract infections in children, in Aksum town health institutions, Northern Ethiopia: a cross-sectional study

Introduction

worldwide, antibiotics are the most commonly prescribed and abused drugs for upper respiratory tract infections. Acute upper respiratory infections are common in children who attend childcare and preventing transmission of disease in health setting depends on actions by parents and staff. Therefore the objective of this study is to assess the parental knowledge and practice on antibiotic use for upper respiratory tract infections in children, in Aksum town health institutions, northern Ethiopia, 2018.

Methods

a facility-based cross-sectional study design was adopted involving 384 parents of children visited governmental health facilities in Aksum town from February to March, 2018. Respondents were selected based on the proportion of nurses in the health facilities. SPSS version 22 was applied for data entry and analysis.

Results

the total number of questionnaires was 384 resulting in a 100% response rate. Almost half of the parents had poor knowledge of the use of antibiotics in children for URTIs 183(47.7%), followed by 156(40.6%) moderate knowledge and 45(11.7%) good knowledge. Practices regarding antibiotic use in children with URTI varied. Only 12.8% of the parents did not always follow the doctors´ advice regarding antibiotic use. In this study has reported many areas in which parental awareness on antibiotic use for acute URTI is considered inadequate, consequently inappropriate knowledge and practices.

Conclusion

nearly half of the parents attending the physicians for their children with URTI expected to get antibiotics.

Outpatient antibiotic prescription rate and pattern in the private sector in India: Evidence from medical audit data

The key objective of this research was to generate new evidence on outpatient antibiotic prescription rate and patterns in the private sector in India. We used 12-month period (May 2013 to April 2014) medical audit dataset from IQVIA (formerly IMS Health). We coded the diagnosis provided in the medical audit data to International Statistical Classification of Diseases and Related Health Problems (ICD-10) and the prescribed antibiotics for the diagnosis to Anatomic Therapeutic Chemical (ATC) classification of World Health Organization (ATC index-2016). We calculated and reported antibiotic prescription rate per 1,000 persons per year, by age groups, antibiotic class and disease conditions. Our main findings are-approximately 519 million antibiotic prescriptions were dispensed in the private sector, which translates into 412 prescriptions per 1,000 persons per year. Majority of the antibiotic prescriptions were dispensed for acute upper respiratory infections (J06) (20.4%); unspecified acute lower respiratory infection (J22) (12.8%); disorders of urinary system (N39) (6.0%); cough (R05) (4.7%); and acute nasopharyngitis (J00) (4.6%) and highest antibiotic prescription rates were observed in the age group 0-4 years. To conclude our study reports first ever country level estimates of antibiotic prescription by antibiotic classes, age groups, and ICD-10 mapped disease conditions.

Do informed consumers in Taiwan favour larger hospitals? A 10-year population-based study on differences in the selection of healthcare providers among medical professionals, their relatives and the general population

OBJECTIVES

Exploring whether medical professionals, who are considered to be 'informed consumers' in the healthcare system, favour large providers for elective treatments. In this study, we compare the inclination of medical professionals and their relatives undergoing treatment for childbirth and cataract surgery at medical centres, against those of the general population.

DESIGN

Retrospective study using a population-based matched cohort data.

PARTICIPANTS

Patients who underwent childbirth or cataract surgery between 1 January 2004 and 31 December 2013.

PRIMARY AND SECONDARY OUTCOMES MEASURES

We used multiple logistic regression to compare the ORs of medical professionals and their relatives undergoing treatment at medical centres, against those of the general population. We also compared the rate of 14-day re-admission (childbirth) and 14-day reoperation (cataract surgery) after discharge between these groups.

RESULTS

Multivariate analysis showed that physicians were more likely than patients with no familial connection to the medical profession to undergo childbirth at medical centres (OR 5.26, 95% CI 3.96 to 6.97, p<0.001), followed by physicians' relatives (OR 2.68, 95% CI 2.20 to 3.25, p<0.001). Similarly, physicians (OR 1.63, 95% CI 1.21 to 2.19, p<0.01) and their relatives (OR 1.43, 95% CI 1.13 to 1.81, p<0.01) were also more likely to undergo cataract surgery at medical centres. Physicians also tended to select healthcare providers who were at the same level or above the institution at which they worked. We observed no significant difference in 14-day re-admission rates after childbirth and no significant difference in 14-day reoperation rates after cataract surgery across patient groups.

CONCLUSIONS

Medical professionals and their relatives are more likely than the general population to opt for service at medical centres. Understanding the reasons that medical professionals and general populations both have a preferential bias for larger medical institutions could help improve the efficiency of healthcare delivery.

Interferon-Inducible Myxovirus Resistance Proteins: Potential Biomarkers for Differentiating Viral from Bacterial Infections

BACKGROUND

In 2015, the 68th World Health Assembly declared that effective, rapid, low-cost diagnostic tools were needed for guiding optimal use of antibiotics in medicine. This review is devoted to interferon-inducible myxovirus resistance proteins as potential biomarkers for differentiating viral from bacterial infections.

CONTENT

After viral infection, a branch of the interferon (IFN)-induced molecular reactions is triggered by the binding of IFNs with their receptors, a process leading to the activation of mx1 and mx2, which produce antiviral Mx proteins (MxA and MxB). We summarize current knowledge of the structures and functions of type I and III IFNs. Antiviral mechanisms of Mx proteins are discussed in reference to their structural and functional data to provide an in-depth picture of protection against viral attacks. Knowing such a mechanism may allow the development of countermeasures and the specific detection of any viral infection. Clinical research data indicate that Mx proteins are biomarkers for many virus infections, with some exceptions, whereas C-reactive protein (CRP) and procalcitonin have established positions as general biomarkers for bacterial infections.

SUMMARY

Mx genes are not directly induced by viruses and are not expressed constitutively; their expression strictly depends on IFN signaling. MxA protein production in peripheral blood cells has been shown to be a clinically sensitive and specific marker for viral infection. Viral infections specifically increase MxA concentrations, whereas viruses have only a modest increase in CRP or procalcitonin concentrations. Therefore, comparison of MxA and CRP and/or procalcitonin values can be used for the differentiation of infectious etiology.

Hand Hygiene Program Decreases School Absenteeism Due to Upper Respiratory Infections

BACKGROUND

We assessed the effectiveness of a handwashing program using hand sanitizer to prevent school absenteeism due to upper respiratory infections (URIs).

METHODS

This was a randomized, controlled, and open study on a sample of 1341 children 4-12 years old, attending 5 state schools in Almería (Spain), with an 8-month follow-up. The experimental group (EG) washed their hands with soap and water, together with using hand sanitizer, and the control group followed their usual handwashing procedures. Absenteeism rates due to URIs were compared between the 2 groups through a multivariate Poisson regression analysis. The percent of days missed in both groups were compared with a z test.

RESULTS

Overall, 1271 cases of school absenteeism due to URIs were registered. Schoolchildren from the EG had a 38% lower risk of absenteeism due to URIs, incidence rate ratio: 0.62, 95% confidence interval: 0.55-0.70, and a decrease in absenteeism of 0.45 episodes/child/academic year, p < .001. Pupils missed 2734 school days due to URIs and the percentage of days absent was significantly lower in the EG, p < .001.

CONCLUSIONS

Use of hand sanitizer plus handwashing with soap accompanied by educational support is an effective measure to reduce absenteeism due to URIs.

Prospective study of the efficacy of antibiotics versus antitussive drugs for the management of URTI-related acute cough in children

Background

Acute cough is one of the most frequent symptoms prompting a visit to a health care provider, usually following a viral upper respiratory tract infection (URTI). The disproportionate use of antibiotics in children with URTIs, recently highlighted in the medical literature, could lead to associated side effects, without any beneficial effect. Although an early, albeit inappropriate, antibiotic prescription increases parental satisfaction, URTIs are predominantly viral infections and are generally self-limiting. Therefore the aim of this study was to analyze the effectiveness of antibiotics compared to symptomatic drugs (central and peripheral antitussives) on URTI-related cough in a pediatric population.

Methods

This is a prospective observational study of 330 children who required pediatric consultation for acute cough. Severity, frequency and type of cough were assessed at baseline and after 6 days of treatment (antitussives n = 123, antibiotics n = 89 or combination of them n = 38) or no treatment (n = 80). The outcome of cough management after 6 days was analyzed in terms of resolution, improvement, no change or worsening of symptoms. Study assessments were performed using a standardized questionnaire administered to parents.

Results

Between children treated with antitussives or antibiotics, there was a statistically significant difference in the resolution of cough. Moreover, if considering peripheral antitussives, the resolution of cough was significantly higher with antitussives than with antibiotics (p < 0.01). There was no difference in cough resolution between children treated with antitussives and those receiving a combination of antibiotics and antitussives, either central and peripheral antitussives.

Conclusion

Antibiotics are generally not useful nor appropriate in treating acute cough due to the common cold. Furthermore, inappropriate antibiotic use introduces the possibility of adverse side effects as well as promotion of antibiotic resistance. The findings of the present study suggest that antitussives, especially peripherally acting agents, represent an effective treatment option for acute pediatric cough caused by URTIs.

Evaluation of a combined MxA and CRP point-of-care immunoassay to identify viral and/or bacterial immune response in patients with acute febrile respiratory infection

Background

Challenges in the clinical differentiation of viral and/or bacterial respiratory infection lead to the misappropriation of antibiotics and increased healthcare costs. A tool to facilitate rapid and accurate point-of-care (POC) differentiation is needed.

Methods and findings

A prospective, single center, blinded, observational clinical trial was conducted at Beth Israel Deaconess Medical Center from December 2012 to August 2013 to determine the accuracy of a POC immunoassay to identify a clinically significant immune response to viral and/or bacterial infection. Sixty patients with acute febrile respiratory infection (19 pharyngitis and 41 lower respiratory tract infection [LRTI]) were enrolled. Participants provided fingerstick blood for immunoassay testing (myxovirus A [MxA] and c-reactive protein [CRP]) and four oropharyngeal samples for viral PCR and routine bacterial cell culture. A venous blood sample was collected. An ELISA was used to measure CRP and MxA. Paired serological testing was used to confirm atypical bacteria. A urine sample was provided for Streptococcus and Legionella antigen testing. Patients with suspected LRTI had sputum and blood cultures, chest X-ray, and WBC count measured. Viral infection was confirmed if oropharyngeal PCR was positive for viral pathogens. Bacterial infection was confirmed in positive throat or sputum cultures. Elevated immunoglobulin M antibodies or twofold increase in IgG antibodies between acute and convalescent phase indicated atypical bacteria. Positive Streptococcus or Legionella urine antigen assays also confirmed bacterial infection. The immunoassay correctly categorized subjects as 92% (22/24) negative, 80% (16/20) with bacterial infection, and 70% (7/10) with viral infection.

Conclusions

The interplay between an MxA value and a semi-quantitative CRP value can aid in the differentiation of infectious etiology. In isolation, neither MxA nor CRP alone is sensitive or specific. However, the pattern of results in a rapid immunoassay provides a sensitive and specific method to differentiate acute febrile respiratory infections. This diagnostic information may help reduce antibiotic misuse and resistance and lower healthcare costs.

Pediatric invasive pneumococcal disease in Taiwan following a national catch-up program with the 13-valent pneumococcal conjugate vaccine

BACKGROUND

Seven-valent pneumococcal conjugate vaccine (PCV) has been available in Taiwan since late 2005. A national catch-up program was launched in Taiwan in 2013, providing 1 dose of 13-valent PCV to children aged 2-5 years. Here, we report the epidemiology of invasive pneumococcal disease (IPD) in children aged ≤5 years in this setting.

METHODS

We collected demographic and clinical information for pediatric patients (≤5 years) with IPD between 2008 and 2013. The incidence of IPD was estimated. The logs for PCV import into Taiwan were obtained to evaluate the impact of PCV usage on IPD epidemiology.

RESULTS

The overall incidence of IPD in children aged ≤5 years was 15.9 cases per 100,000 person-years. The IPD incidence caused by 7-valent PCV serotypes decreased significantly from 10.0 cases per 100,000 person-years in 2008 to 2.3 cases per 100,000 person-years in 2013. The incidence of IPD caused by serotype 19A increased substantially from 1.7 cases per 100,000 person-years in 2008 to 10.3 cases per 100,000 person-years in 2012, followed by a significant decrease to 5.6 cases per 100,000 person-years in 2013. The significant decrease in the incidence of serotype 19A IPD occurred primarily in children aged 2-5 years.

CONCLUSIONS

The 13-valent PCV catch-up program was associated with a significant decrease in serotype 19A IPD incidence in 2013, primarily in children eligible for the 13-valent PCV immunization. Continued surveillance is necessary to assess the further impact of the national catch-up program on pediatric IPD epidemiology in Taiwan.

The impact of common infections on school absenteeism during an academic year

BACKGROUND

School absenteeism because of infections is one of the most important problems facing both public and private primary schools. The aim of the study was to assess the impact of infections on school absenteeism and their reduction with a handwashing program using hand sanitizer.

METHODS

The study was an 8-month-long, randomized, controlled open study (N = 1,609 children, aged 4-12 years old) at 5 state schools in Almeria (Spain). The experimental group (EG) washed their hands with soap and water, complemented with the use of hand sanitizer, and the control group (CG) followed the usual handwashing procedure. The total number of episodes and days missed as well as those because of upper respiratory infections and gastrointestinal infections were compared in both groups with a Z-test.

RESULTS

The students were absent 12,386 days in 7,945 episodes. The incidence of total absent episodes and percent of missed days, including those because of upper respiratory infections and gastrointestinal infections, were significantly lower in the EG than the CG (P < .001), and this was maintained through the flu pandemic period.

CONCLUSION

School absenteeism because of infections in schools is reduced when a hand hygiene program utilizing sanitizing gels is properly carried out, especially during the flu season.

Brand name or generic? What are the health professionals prescribed for treating diabetes? A longitudinal analysis of the National Health Insurance reimbursement database

OBJECTIVE

This study aimed to explore whether physicians prescribe more brand-name oral hypoglycemic agents (OHA) for diabetic patients with medical training background (MP) than for general patients (GP).

RESEARCH DESIGN AND METHODS

A longitudinal analysis of 1,000,000 National Health Insurance cohorts of 1998-2008 was conducted. Univariate and multivariate models were performed to assess the associations of the outcome (the ratio of brand-name/generic odds in the MP group to that in the GP group) and the covariates, including patient medical training background, characteristics of patient, prescriber, and medical settings, and market competition. A generalized estimating equation method was used to control the dependency of longitudinal data.

RESULTS

A total of 46,850 diabetic patients were prescribed with 2,703,149 OHA prescriptions during the study period. Compared with GP, MP had 1.37 times greater odds of being prescribed with brand-name instead of generic OHA, among whom pharmacists and physicians had the highest odds ratios of 2.78 (95%CI, 1.05-7.36) and 1.68 (95%CI, 0.99-2.85), respectively. Patients' diabetes severity, prescribers' level of experience, medical settings that were publicly owned, had a higher accreditation level, and were located in a higher urbanized area, lower market competition, and earlier dates of prescription were positively associated with brand-name prescription. Among all medical sub-specialties, cardiologists were more likely to prescribe brand-name OHA.

CONCLUSIONS

This study is the first to demonstrate how a patients' medical training background, in addition to the characteristics of patients, prescribers, and medical settings, and market competition might influence physicians' prescribing choice of brand-name or generic OHA.

New sandwich-type enzyme-linked immunosorbent assay for human MxA protein in a whole blood using monoclonal antibodies against GTP-binding domain for recognition of viral infection

OBJECTIVES

To develop a clinically significant and practical enzyme-linked immunosorbent assay (ELISA) for the detection of MxA protein in human whole blood, a biological marker of viral infection.

DESIGN AND METHODS

A sandwich ELISA suitable for the measurement of human MxA protein in whole blood was developed using mouse monoclonal antibodies (mAbs) raised against the GTP-binding domain of human MxA protein. Prior to the assay, the whole blood sample was treated with special buffer to extract the MxA protein, improve its stability, and avoid interference from hemoglobin.

RESULTS

This ELISA meets all the requirements for use in routine clinical assays, especially in terms of sensitivity (detection limit: 1.3 ng/ml whole blood), accuracy (recovery: 93.0-100.0%), and rapidity (<1.5 h). The present ELISA had a sensitivity of 100% and a specificity of 100% for viral infection when compared to samples from healthy control and 87.1% and 90.9% when compared to samples from the bacterial infection group.

CONCLUSION

We have developed a new ELISA for measuring MxA protein in human whole blood using mAbs specific for the GTP-binding domain of MxA. This ELISA has analytical performance enough for routine clinical assay and can be used in detecting the possibility of viral infection.

Gender disparities in AMI management and outcomes among health professionals, their relatives, and non-health professionals in Taiwan from 1997 to 2007

Numerous reports of gender differences in the management and mortality of acute myocardial infarction (AMI) patients have raised concerns on gender inequity in cardiac care. However, no study has explored whether gender disparity exists among health professionals and their relatives. Therefore, this study assesses gender disparity in the management and mortality of AMI patients in Taiwan, and determines whether such disparity exists among health professionals and their relatives. National Health Insurance (NHI) files were used to obtain information on a cohort of 79,360 AMI patients aged 30-85 years in Taiwan from 1997 to 2007. The use of catheterization and revascularization (CATH/RAVS) and one-year mortality were compared between men and women in all adult patients, health professionals and their relatives, and non-health professional patients. Taiwanese women with AMI were significantly less likely than their male counterparts to receive CATH/RAVS, and showed greater one-year mortality. Similarly, women in the professional group were significantly less likely to receive CATH/RAVS. However, they did not have worse survival outcomes (hazard ratio: 1.01; 95% CI: 0.68-1.50) compared to men. Regarding mortality following CATH/RAVS, no gender disparities against women were observed in health professionals and their relatives, whereas significant gender disparities persisted in non-health professional patients. In conclusion, this study shows a substantial gender disparity against women in the management and one-year survival of AMI patients in Taiwan. This research extends earlier studies by showing similar gender gaps in treatment uses among health professionals and their relatives without strong evidence on gender disparities against women in survival.

Pediatricians' role in caring for preschool children in Taiwan under the national health insurance program

BACKGROUND/PURPOSE

The National Health Insurance (NHI) covers more than 98% of the 22 million people in Taiwan. Referral is not mandated, therefore, competition among specialties exists in caring for preschool children. The aim of this study was to analyze the utility of outpatient services among preschool children to investigate the pediatricians role in their care. We also analyzed how the density of specialists induces demand by using the NHI database.

METHODS

We used the systematic sampling file, CD20040, from the bureau of NHI, Taiwan, as the data source for our analysis. We linked the file to the registries for medical personnel and the board-certified specialists to analyze the specialty distribution. We also linked to the registry for contracted medical facilities to analyze the distribution in different levels of hospitals.

RESULTS

In total, 56,144 outpatient visits for preschool children were analyzed. Among these, 59.1% of outpatient services for preschool children were provided by pediatric specialists, 20.7% by otolaryngologists, 13.5% by family medicine specialists, and the other 6.7% by general practitioners. Most of the visits occurred in a primary care setting (84.1%). As children grew older, a significant decline in the pediatric specialists visit rate and an increase in the otolaryngologists visit rate were observed in the primary care setting. Young children visited pediatric specialists more frequently. The pediatric specialists visit rate was higher in the northern urban areas. It was also significantly correlated with the density of pediatricians.

CONCLUSION

Otolaryngologists compete with pediatricians in the primary care of preschool children in Taiwan. The proportion of visits to pediatric specialists was correlated significantly with the density of pediatricians in different counties. The NHI should modify its policy to make the medical system more equitable.

Why do paediatricians prescribe antibiotics? Results of an Italian regional project

Background

To investigate determinants of antibiotic prescription in paediatric care, as a first step of a multilevel intervention to improve prescribing for common respiratory tract infections (RTIs) in a northern Italian region with high antibiotic prescription rate.

Methods

A two-step survey was performed: in phase I, knowledge, and attitudes were explored involving all family and hospital paediatricians of Emilia-Romagna and a sample of parents. In phase II, patient care practices were explored in a stratified random sample of visits, both in hospitals and family physician's clinics; parent expectations were investigated in a sub-sample of these visits.

Results

Out of overall 4352 visits for suspected RTIs, in 38% of children an antibiotic was prescribed. Diagnostic uncertainty was perceived by paediatricians as the most frequent cause of inappropriate prescription (56% of 633 interviewed paediatricians); but, rapid antigen detecting tests was used in case of pharyngitis/pharyngotonsillitis by 36% and 21% of family and hospital paediatricians only. More than 50% of paediatricians affirmed to not adopt a "wait and see strategy" in acute otitis. The perceived parental expectation of antibiotics was not indicated by paediatricians as a crucial determinant of prescription, but this perception was the second factor most strongly associated to prescription (OR = 12.8; 95% CI 10.4 - 15.8), the first being the presence of othorrea. Regarding parents, the most important identified factors, potentially associated to overprescribing, were the lack of knowledge of RTIs and antibiotics (41% of 1029 parents indicated bacteria as a possible cause of common cold), and the propensity to seek medical care for trivial infections (48% of 4352 children accessing ambulatory practice presented only symptoms of common cold).

Conclusion

A wide gap between perceived and real determinants of antibiotic prescription exists. This can promote antibiotic overuse. Inadequate parental knowledge can also induce inappropriate prescription. The value of this study is that it simultaneously explored determinants of antimicrobial prescribing in an entire region involving both professionals and parents.

Factors associated with the diagnosis of neurodevelopmental disorders: a population-based longitudinal study

OBJECTIVES

We investigated the occurrence of newly diagnosed mental retardation, attention-deficit/hyperactivity disorder, and autism and sociodemographic factors associated with their distribution in Taiwan, and we examined urbanicity- and socioeconomic status-associated differences in the age at first diagnosis.

METHODS

The data for this study were derived from the 1996-2004 National Health Insurance Research Database in Taiwan. Approximately 1.8 million beneficiaries born between 1996 and 2001 were identified, with follow-up periods ranging from 3 to 8 years.

RESULTS

Each of the 3 neurodevelopmental disorders had distinct incidence rates and associated factors. For example, as compared with the birth years of 1996-1999, the rate of autism increased 14% during the period 2000-2004, whereas the rate of newly diagnosed mental retardation decreased 42% to 50% over the same period. An elevated incidence rate for attention-deficit/hyperactivity disorder and autism was observed in later birth cohorts. The risk of receiving a diagnosis of mental retardation for children in rural areas and of lower socioeconomic status was reduced in early childhood and increased in school ages as compared with their urban and higher socioeconomic status counterparts.

CONCLUSIONS

Variation in the rate of newly diagnosed mental retardation, attention-deficit/hyperactivity disorder, and autism among children in Taiwan depended on age, birth year, period, and socioeconomic status. The extent of the association linking age with the first diagnosis of mental retardation varies across different urbanicity level and socioeconomic status.

MxA-based recognition of viral illness in febrile children by a whole blood assay

Febrile children are often given antibiotics empirically and unnecessarily. MxA is a protein induced in peripheral lymphoid cells by type 1 interferons during active viral infection. The ability of a whole blood ELISA assay for MxA to identify children with viral illness was studied in 122 children who presented with acute onset fever and 52 age-matched healthy controls. The febrile children were divided into three groups according to their final diagnoses: etiologically diagnosed viral infection, clinically diagnosed viral infection, and bacterial infection. MxA levels in the bacterial infection group and controls were similar and low (90.9 +/- 69.7 and 76.9 +/- 63.2 ng/mL, respectively). In contrast, mean MxA levels in the two viral infection groups were higher than in both the bacterial and control groups (719.2 +/- 386.4 and 827.0 +/- 651.1, respectively). A receiver operating characteristic analysis showed that the area under the curve of the MxA level was greater than under the curves of both the white blood cell count and the C-reactive protein concentration. Whole blood assay of MxA is a clinically useful tool for diagnosing viral illness in febrile children and should help reduce use of unnecessary antibiotics.

Clinical, social and relational determinants of paediatric ambulatory drug prescriptions due to respiratory tract infections in Italy

OBJECTIVES

Collecting information on patterns of drug prescriptions and on factors influencing prescribing decisions is fundamental for supporting the rational use of drugs. This study was aimed at investigating patterns of drug prescription in paediatric outpatients and at evaluating determinants of prescriptions for respiratory tract infections (RTIs).

METHODS

We conducted a national cross-sectional survey involving primary care paediatricians and parents. Diagnoses and prescriptions made at each consultation were described. Poisson regression models were used to analyse determinants of drug and antibiotic prescriptions for visits due to RTIs.

RESULTS

A total of 4,302 physician and parent questionnaires were analysed. These corresponded to 2,151 visits, 792 of which were due to RTIs. Drugs were prescribed in 83.4% of RTI visits, while antibiotics were prescribed in 40.4%. According to paediatricians' perceptions, 84.2% of parents of children with a RTI expected to receive a drug prescription. Paediatricians' perception of parental expectations was the strongest determinant for prescription of drugs and specifically of antibiotics [adjusted relative risk (RR): 1.7 and 3.6, respectively; P < 0.001]. However, in 77.1% of RTI visits, paediatricians judged themselves as not being influenced at all by parents' expectations in their decision to prescribe.

CONCLUSIONS

This study underscores that relational factors, in particular perceived parental expectations, are one of the leading factors of drug prescriptions in paediatric ambulatory care settings, reinforcing the opinion that communication between physicians and parents can affect prescription patterns.