Ben Bottema

Validity of spirometric testing in a general practice population of patients with chronic obstructive pulmonary disease (COPD)

Objective: To investigate the validity of spirometric tests performed in general practice. Method: A repeated within subject comparison of spirometric tests with a “gold standard” (spirometric tests performed in a pulmonary function laboratory) was performed in 388 subjects with chronic obstructive pulmonary disease (COPD) from 61 general practices and four laboratories. General practitioners and practice assistants undertook a spirometry training programme. Within subject differences in forced expiratory volume in 1 second and forced vital capacity (ΔFEV1 and ΔFVC) between laboratory and general practice tests were measured (practice minus laboratory value). The proportion of tests with FEV1 reproducibility <5% or <200 ml served as a quality marker. Results: Mean ΔFEV1 was 0.069 l (95% CI 0.054 to 0.084) and ΔFVC 0.081 l (95% CI 0.053 to 0.109) in the first year evaluation, indicating consistently higher values for general practice measurements. Second year results were similar. Laboratory and general practice FEV1 values differed by up to 0.5 l, FVC values by up to 1.0 l. The proportion of non-reproducible tests was 16% for laboratory tests and 18% for general practice tests (p=0.302) in the first year, and 18% for both in the second year evaluation (p=1.000). Conclusions: Relevant spirometric indices measured by trained general practice staff were marginally but statistically significantly higher than those measured in pulmonary function laboratories. Because of the limited agreement between laboratory and general practice values, use of these measurements interchangeably should probably be avoided. With sufficient training of practice staff the current practice of performing spirometric tests in the primary care setting seems justifiable.

How to conceptualize professionalism: a qualitative study

The aim of this study was to clarify which themes and elements constitute professionalism in medicine. Three consecutive steps were taken: (a) a systematic search of the literature to identify constituent elements of professionalism mentioned in definitions and descriptions of the concept; (b) analysis of these elements using the constant comparison technique to reveal possible themes covering these elements; and (c) validating the results using an expert panel. A total of 90 separate elements of professionalism were identified in the 57 articles included in our study. Three themes within professionalism were uncovered: (1) interpersonal professionalism; (2) public professionalism; and (3) intrapersonal professionalism. These themes were considered accurate by the expert panel which supports the validity of the results. Our findings show that the concept of professionalism is multidimensional and should be conceptualized as such.

Professionalism in general practice: development of an instrument to assess professional behaviour in general practitioner trainees.

Introduction  The aim of this study is to develop a new tool to assess professional behaviour in general practitioner (GP) trainees: the evaluation of professional behaviour in general practice (EPRO‐GP) instrument.

Variation in spirometry utilization between trained general practitioners in practices equipped with a spirometer.

Objective. To explore spirometry utilization among general practitioners and identify practitioner and practice-related factors associated with spirometry utilization. Design. Multivariate multilevel cross-sectional analysis of a questionnaire survey. Setting. Some 61 general practices involved in a spirometry evaluation programme in the Netherlands. All practices owned a spirometer and were trained to perform spirometry. Subjects. A total of 144 general practitioners and 179 practice assistants. Main outcome measures. Extent of spirometry utilization for five indications from national COPD/asthma guidelines, practitioner and practice-related factors associated with spirometry utilization. Results. The response rate was 97%. General practitioners used spirometry mostly to evaluate treatment with inhaled steroids (58%). Significant practitioner-related factors associated with spirometry utilization were: general practitioners’ job satisfaction, general practitioners’ general interest in research, and prior participation in spirometry training. Practice-related factors associated with spirometry utilization were: presence of a practice nurse, delegation of medical tasks to practice assistants, use of spirometry in different rooms, and use of protocols in practice. Conclusion. Practitioner- as well as practice-related factors were associated with the extent of spirometry utilization. In particular, it is essential to improve practice-related factors (e.g. presence of a practice nurse, more delegation of medical tasks to the practice assistant).

Effect of an integrated primary care model on the management of middle-aged and old patients with obstructive lung diseases.

Objective. To investigate the effect of a primary care model for COPD on process of care and patient outcome. Design. Controlled study with delayed intervention in control group. Setting. The GP delegates tasks to a COPD support service (CSS) and a practice nurse. The CSS offers logistic support to the practice through a patient register and recall system for annual history-taking and lung function measurement. It also forms the link with the chest physician for diagnostic and therapeutic advice. The practice nurses most important tasks are education and counselling. Subjects. A total of 44 practices (n =22 for intervention and n =22 for control group) and 260 of their patients ≥40 years with obstructive lung diseases. Results. Within the intervention group planned visits increased from 16% to 44% and from 19% to 25% in the control condition (difference between groups p =0.014). Annual lung function measurement rose from 17% to 67% in the intervention and from 11% to 18% in the control group (difference between groups p =0.001). Compared with control, more but not statistically significant smokers received periodic advice to quit smoking (p =0.16). At baseline 41% of the intervention group were using their inhalers correctly and this increased to 54% after two years; it decreased in the control group from 47 to 29% (difference between groups p =0.002). The percentage of patients without exacerbation did not change significantly compared with the control condition. The percentage of the intervention group not needing emergency medication rose from 79% to 84% but decreased in the controls from 81 to 76% (difference between groups p =0.08). Conclusion. Combining different disciplines in one model has a positive effect on compliance with recommendations for monitoring patients, and improves the care process and some patient outcomes.

Are asymptomatic airway hyperresponsiveness and allergy risk factors for asthma? A longitudinal study

Airway hyperresponsiveness (AHR) is a characteristic feature of asthma, but it is unclear whether asymptomatic AHR is associated with a higher risk of asthma. The present study assessed whether there is an association between asymptomatic AHR in adolescence and asthma in adulthood. The association between allergy and development of asthma was also investigated. A follow-up study of a general population cohort of adolescents was performed 14 yrs after baseline. Respiratory status was assessed at baseline in 1989 and at follow-up in 2003–2004 by a respiratory symptoms questionnaire, spirometry and histamine challenge. Allergy status was also assessed. The respiratory status of 199 subjects was assessed twice. In total, 91 (46%) subjects had the same AHR status in combination with respiratory symptoms at follow-up as at baseline. Adjusted for age, sex, allergy, family history of asthma and smoking history, having asymptomatic AHR was not significantly related to having asthma 14 yrs later (odds ratio (OR) 2.15, 95% confidence interval (CI) 0.67–6.83). For subjects with allergy at baseline, the OR for developing asthma was 4.45 (95% CI 1.46–13.54). Screening for asymptomatic airway hyperresponsiveness in adolescence does not identify subjects at risk of developing asthma. Conversely, the presence of allergy in adolescence does seem to be a risk factor for asthma development.

Behavioural elements of professionalism: Assessment of a fundamental concept in medical care

Background: The Nijmegen Professionalism Scale, an instrument for assessing professional behaviour of general practitioner (GP) trainees, consists of four domains: professional behaviour towards patients, other professionals, society and oneself. The purpose of the instrument is to provide formative feedback. Aim: The aim of this study was to examine the psychometric properties of the Nijmegen Professionalism Scale. Methods: Both GP trainers and their GP trainees participated. Factor analysis was conducted for each domain. Factor structures of trainee and trainer groups were compared. Measure of congruence used was Tuckers phi. Cronbachs α was used to establish reliability. Results: Factor structures of the instrument used by GP trainers and trainees were similar. Two factors for each domain were found: domain 1, Respecting patients interests and Professional distance; domain 2, Collaboration skills and Management skills; domain 3, Responsibility and Quality management; and domain 4, Reflection and learning and Dealing with emotions. Congruence measures were substantial (>0.90). Reliability ranged from 0.78 to 0.95. Conclusion: This study to validate the instrument represents one further step. To construct a sound validity argument, a much broader range of evidence is required. Nevertheless, this study shows that the Nijmegen Professionalism Scale is a reliable tool for assessing professional behaviour.

General practitioners’ needs for ongoing support for the interpretation of spirometry tests

Background: Although one out of three general practitioners (GPs) carries out spirometry, the diagnostic interpretation of spirometric test results appears to be a common barrier for GPs towards its routine application. Methods: Multivariate cross-sectional analysis of a questionnaire survey among 137 GPs who participated in a spirometry evaluation programme in the Netherlands. We identified characteristics of GPs and their practice settings associated with GPs’ need for ongoing support for spirometry interpretation. Results: Response rate on the survey questionnaire was 98%. The need for ongoing support among the participating GPs was 69%. GPs’ recent spirometry training showed a statistically significant association with the need for ongoing support for the interpretation of spirometry (odds ratio 0.43, 95% CI 0.20–0.92). Conclusion: There is a need for ongoing support for spirometry interpretation among GPs. Recent spirometry training partially diminished this need.

Are family practice trainers and their host practices any better? comparing practice trainers and non-trainers and their practices

BackgroundFamily Physician (FP) trainees are expected to be provided with high quality training in well organized practice settings. This study examines differences between FP trainers and non-trainers and their practices to see whether there are differences in trainers and non-trainers and in how their practices are organized and their services are delivered.Method203 practices (88 non-training and 115 training) with 512 FPs (335 non-trainers and 177 trainers) were assessed using the “Visit Instrument Practice organization (VIP)” on 369 items (142 FP-level; 227 Practice level). Analyses (ANOVA, ANCOVA) were conducted for each level by calculating differences between FP trainees and non-trainees and their host practices.ResultsTrainers scored higher on all but one of the items, and significantly higher on 47 items, of which 13 remained significant after correcting for covariates. Training practices scored higher on all items and significantly higher on 61 items, of which 23 remained significant after correcting for covariates. Trainers (and training practices) provided more diagnostic and therapeutic services, made better use of team skills and scored higher on practice organization, chronic care services and quality management than non-training practices. Trainers reported more job satisfaction and commitment and less job stress than non-trainers.DiscussionThere are positive differences between FP trainers and non-trainers in both the level and the quality of services provided by their host practices. Training institutions can use this information to promote the advantages of becoming a FP trainer and training practice as well as to improve the quality of training settings for FPs.

Attention to gender in communication skills assessment instruments in medical education: a review.

Medical Education 2011: 45: 239–248