Assessing the precision of a time-sampling-based study among GPs: balancing sample size and measurement frequency.

BACKGROUND: Our research is based on a technique for time sampling, an innovative method for measuring the working hours of Dutch general practitioners (GPs), which was deployed in an earlier study. In this study, 1051 GPs were questioned about their activities in real time by sending them one SMS text message every 3 h during 1 week. The required sample size for this study is important for health workforce planners to know if they want to apply this method to target groups who are hard to reach or if fewer resources are available. In this time-sampling method, however, standard power analyses is not sufficient for calculating the required sample size as this accounts only for sample fluctuation and not for the fluctuation of measurements taken from every participant. We investigated the impact of the number of participants and frequency of measurements per participant upon the confidence intervals (CIs) for the hours worked per week. METHODS: Statistical analyses of the time-use data we obtained from GPs were performed. Ninety-five percent CIs were calculated, using equations and simulation techniques, for various different numbers of GPs included in the dataset and for various frequencies of measurements per participant. RESULTS: Our results showed that the one-tailed CI, including sample and measurement fluctuation, decreased from 21 until 3 h between one and 50 GPs. As a result of the formulas to calculate CIs, the increase of the precision continued and was lower with the same additional number of GPs. Likewise, the analyses showed how the number of participants required decreased if more measurements per participant were taken. For example, one measurement per 3-h time slot during the week requires 300 GPs to achieve a CI of 1 h, while one measurement per hour requires 100 GPs to obtain the same result. CONCLUSIONS: The sample size needed for time-use research based on a time-sampling technique depends on the design and aim of the study. In this paper, we showed how the precision of the measurement of hours worked each week by GPs strongly varied according to the number of GPs included and the frequency of measurements per GP during the week measured. The best balance between both dimensions will depend upon different circumstances, such as the target group and the budget available.

Do effects of common case-mix adjusters on patient experiences vary across patient groups?

BACKGROUND: Many survey studies in health care adjust for demographic characteristics such as age, gender, educational attainment and general health when performing statistical analyses. Whether the effects of these demographic characteristics are consistent between patient groups remains to be determined. This is important as the rationale for adjustment is often that demographic sub-groups differ in their so-called 'response tendency'. This rationale may be less convincing if the effects of response tendencies vary across patient groups. The present paper examines whether the impact of these characteristics on patients' global rating of care varies across patient groups. METHODS: Secondary analyses using multi-level regression models were performed on a dataset including 32 different patient groups and 145,578 observations. For each demographic variable, the 95% expected range of case-mix coefficients across patient groups is presented. In addition, we report whether the variance of coefficients for demographic variables across patient groups is significant. RESULTS: Overall, men, elderly, lower educated people and people in good health tend to give higher global ratings. However, these effects varied significantly across patient groups and included the possibility of no effect or an opposite effect in some patient groups. CONCLUSION: The response tendency attributed to demographic characteristics - such as older respondents being milder, or higher educated respondents being more critical - is not general or universal. As such, the mechanism linking demographic characteristics to survey results on patient experiences with quality of care is more complicated than a general response tendency. It is possible that the response tendency interacts with patient group, but it is also possible that other mechanisms are at play.

Differences in palliative care quality between patients with cancer, patients with organ failure and frail patients: A study based on measurements with the Consumer Quality Index Palliative Care for bereaved relatives.

BACKGROUND: Palliative care is rooted in the care for incurably ill cancer patients. Yet today there is a recognised need for palliative care for patients with non-cancer conditions. However, the often unpredictable illness trajectories and the difficulty in predicting the imminence of death in people with non-cancer conditions may hamper the provision of high-quality palliative care. AIM: To compare the quality of palliative care provided to patients with cancer, patients with organ failure and frail patients and their relatives. DESIGN: An existing dataset was analysed, consisting of data collected through the Consumer Quality Index Palliative Care questionnaire for bereaved relatives. SETTING/PARTICIPANTS: Data were analysed of 456 relatives of deceased patients with cancer, patients with organ failure and frail patients from various care settings in the Netherlands. RESULTS: Relatives (e.g. partners or children) of deceased patients with organ failure (n = 61) were more likely to have negative experiences regarding the expertise of healthcare professionals compared with relatives of patients with cancer (n = 215). Relatives of frail patients (n = 180) gave a relatively low rating of the general quality of the care in the last week of the patient's life, both as regards the care provided to patients (p = 0.015) and as regards the support to relatives (p = 0.009). CONCLUSION: Compared with the bereaved relatives of patients with cancer, bereaved relatives of patients with organ failure or frailty were more likely to negatively assess the palliative care provided to both the patient and themselves. Improving professionals' expertise in palliative care for people with non-cancer conditions is recommended.

Clinicians' beliefs and attitudes toward patient self-management in the Netherlands; translation and testing of the American Clinician Support for Patient Activation Measure (CS-PAM).

BACKGROUND: The aim of this study was to test the Dutch version of the Clinician Support for Patient Activation Measure (CS-PAM), to explore the beliefs of Dutch clinicians about patients' self-management, and to establish whether there are differences in this respect between general practitioners and other primary care providers. METHODS: The CS-PAM was translated in Dutch and data were collected in a sample of 489 general practitioners and other primary care providers. Statistical analyses (RASCH, Cronbach's α) were performed to establish the psychometric properties of the instrument. RESULTS: The psychometric scores of the Dutch CS-PAM were acceptable to good, and the difficulty level and structure was comparable to that of the original instrument. The average score of Dutch clinicians on the CS-PAM was 65.1 (SD 10.7), somewhat lower compared to their colleagues in the US (69; SD 12.1) and the UK (69, SD 12.8). Dutch general practitioners scored significantly lower on the CS-PAM compared to other primary care providers. CONCLUSIONS: The Dutch CS-PAM is a reliable instrument to measure beliefs of clinicians regarding patient self-management. Further validation studies are necessary to establish the distribution of scores in specific provider populations and to assess the clinical relevance of the instrument for different outcomes.

Factors associated with the self-perceived ability of nursing staff to remain working until retirement: a questionnaire survey.

BACKGROUND: It is important to learn how employers in European countries can prevent nursing staff from changing occupation or taking early retirement in order to counteract expected nursing shortages. However, to date research on nursing staff's ability to remain working until retirement age has been limited. The purpose of this study was to gain insight into the associations between different job and organisational characteristics, job satisfaction, occupational commitment and the self-perceived ability to continue working in the current line of work until the official retirement age. METHODS: The questionnaire-based, cross-sectional study included 730 nursing staff members employed in Dutch hospitals, nursing homes, organisations for psychiatric care, homes for the elderly, care organisations for disabled people and home care organisations (mean age: 48; 89% female). Linear and logistic regression analyses and mediation analyses were applied to test hypothesised associations. RESULTS: Reducing work pressure and increasing appreciation by senior management in particular have positive consequences for nursing staff's self-perceived ability to continue working until the official retirement age. The job and organisational characteristics of autonomy, work pressure, supportive leadership, educational opportunities, communication within the organisation and appreciation of nursing staff by senior management together have substantial impact on nursing staff's job satisfaction. Job satisfaction in turn is related to the self-perceived ability to continue working until the retirement age. However, job satisfaction mainly summarises the joint effect of job and organisational characteristics and has no supplementary effect on the self-perceived ability to continue working. CONCLUSION: Employers should primarily focus on work pressure and the appreciation of nursing staff by senior management in order to retain nursing staff even as they get older.

Patient experiences of inpatient hospital care: a department matter and a hospital matter.

OBJECTIVE: To examine the added value of measuring and possibly presenting patient experiences at the department level, in addition to the hospital level, and to explore the possibility that patient experiences differ according to the 'type' of hospital department. DESIGN: Secondary analysis of data from a widely used survey on patient experiences of Dutch inpatient hospital care [Consumer Quality Index (CQI) Inpatient Hospital Care]. SETTING: Inpatient hospital care experience survey of patients of 78 Dutch hospitals. PARTICIPANTS: A total of 15 171 randomly selected inpatients from 78 Dutch hospitals, who had at least one night of hospitalization between October 2006 and October 2007. MAIN OUTCOME MEASURES: Explained variance in patient experiences at the department level, compared with the explained variance at the hospital level. Significant differences in patient experiences between types of departments, expressed in regression coefficients. Patient experiences were measured using validated quality indicators, calculated from specific survey items. RESULTS: Adding the department level to the analyses of patient experiences is statistically worthwhile for a number of quality indicators of the CQI Inpatient Hospital Care, and will enable the presentation of more detailed results within hospitals. Furthermore, the results indicated that there are some systematic differences in patient experiences between specific types of hospital departments across hospitals. However, the proportion of variance in experiences explained by both department and hospital is limited (max. 14%). CONCLUSIONS: Analyses of quality information on patient experiences of inpatient hospital care should not only take the hospital level, but also at the more specific department level into account.

Participation of people with physical disabilities: three-year trend and potential for improvement.

OBJECTIVE: To provide an insight into developments in participation over the period 2008 to 2010 among Dutch people with physical disabilities and into their demands for additional participation. DESIGN: Trend study with additional cross-sectional survey. SETTING: Community-dwelling people with physical disabilities. PARTICIPANTS: A sample of 1868 (2008), 1900 (2009), and 2163 (2010) people (≥15y) with mild, moderate, or severe physical disability. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Eight indicators of participation within International Classification of Functioning, Disability and Health domains: use of neighborhood facilities, going out of the house, having paid work, performing volunteer services, visiting leisure facilities, performing club activities, meeting friends, and use of public transport. RESULTS: No increase in participation rates was found over the years 2008 to 2010. In 2010, 18% of the people who did not have a paid job wanted to work, especially younger (<40y) people and more highly educated people, 30% wanted to do more activities in their leisure time, and 23% wanted more social contacts. People who did not participate in a specific activity in 2010 were more likely to have a desire for additional participation than were people who already participated. People with severe disability were less likely to want work; however, they did express a wish to increase their social activities. CONCLUSIONS: Although no increase in participation was found, this does not imply that participation rates among people with physical disabilities have already reached optimal levels. Respondents' stated wish for additional participation provides potential for improvement. Further research should focus on individual values, participation appraisal, and interaction between individual and environmental characteristics to enhance participation.

Partners of cancer patients consult their GPs significantly more often with both somatic and psychosocial problems.

OBJECTIVE: Partners of cancer patients experience psychological distress and impaired physical health around and after the diagnosis of cancer. It is unknown whether these problems are presented to the general practitioner (GP). This study aimed to establish partners' GP use around the diagnosis of cancer. DESIGN: Cohort study. SETTING: Primary care. SUBJECTS: Partners of 3071 patients with breast, prostate, colorectal, or lung cancer were included. Patients were diagnosed in 2001-2009 and were alive at least two years after diagnosis. MAIN OUTCOME MEASURES: Number of GP contacts and health problems in partners between six months before and two years after diagnosis. RESULTS: In the first six months after diagnosis, partners' GP use was similar to baseline (18 to six months before diagnosis). Between six and 24 months after diagnosis, GP use was increased in partners of patients with breast, prostate, and colorectal cancer, an increase of 31% (p = 0.001), 26% (p = 0.001), and 19% (p = 0.042), respectively. In partners of patients with breast cancer and colorectal cancer, GP use was increased for both somatic and psychosocial symptoms. In partners of prostate cancer patients, an increase was seen in somatic symptoms, whereas in partners of lung cancer patients, GP use was only increased for psychosocial symptoms. "Problems with the illness of the partner" was a frequently recorded reason for contact in the first six months after diagnosis. CONCLUSION: GP use of partners of cancer patients is increased 6-24 months after diagnosis, but health problems vary between cancer types. GPs should be alert for somatic and psychosocial problems in partners of cancer patients.

Measuring patient activation in The Netherlands: translation and validation of the American short form Patient Activation Measure (PAM13).

BACKGROUND: The American short form Patient Activation Measure (PAM) is a 13-item instrument which assesses patient (or consumer) self-reported knowledge, skills and confidence for self-management of one's health or chronic condition. In this study the PAM was translated into a Dutch version; psychometric properties of the Dutch version were established and the instrument was validated in a panel of chronically ill patients. METHODS: The translation was done according to WHO guidelines. The PAM 13-Dutch was sent to 4178 members of the Dutch National Panel of people with Chronic illness or Disability (NPCD) in April 2010 (study A) and again to a sub sample of this group (N = 973) in June 2010 (study B). Internal consistency, test-retest reliability and cross-validation with the SBSQ-D (a measure for Health literacy) were computed. The Dutch results were compared to similar Danish and American data. RESULTS: The psychometric properties of the PAM 13-Dutch were generally good. The level of internal consistency is good (α = 0.88) and item-rest correlations are moderate to strong. The Dutch mean PAM score (61.3) is comparable to the American (61.9) and lower than the Danish (64.2). The test-retest reliability was moderate. The association with Health literacy was weak to moderate. CONCLUSIONS: The PAM-13 Dutch is a reliable instrument to measure patient activation. More research is needed into the validity of the Patient Activation Measure, especially with respect to a more comprehensive measure of Health literacy.

Factors influencing the adoption of home telecare by elderly or chronically ill people: a national survey.

AIMS AND OBJECTIVES: The primary aim is to provide insight into client characteristics and characteristics of home telecare contacts, which may influence the adoption of home telecare. Secondary aim is to examine the applicability of four perceived attributes in Rogers' diffusion of innovations theory, which may influence the adoption: relative advantage, compatibility, complexity and observability. BACKGROUND: Western countries face strongly increasing healthcare demands. At the same time, a growing nursing shortage exists. The use of home telecare may be instrumental in improving independence and safety and can provide support to older and chronically ill people, but a precondition for its uptake is that clients consider it as a useful and helpful technological tool. DESIGN: A survey conducted among clients of seven home care organisations in the Netherlands connected to a home telecare system. METHODS: In 2007, a postal questionnaire was distributed to 468 older or chronically ill clients: 254 responded (54%). The data were analysed by regression techniques, employing a theoretical model. RESULTS: This study showed that clients' perceived attributes - relative advantage, compatibility, complexity and observability - have a significant effect on adoption of home telecare explaining 61% of the variance. The chance of adoption is higher when a client already receives long-term personal and/or nursing care, he/she lives alone and when there are fixed daily contacts via the home telecare system. The perception of possible benefits can still be enhanced. CONCLUSIONS: The concept of perceived attributes, derived from Rogers' diffusion of innovation theory, has been useful to explain clients' adoption of home telecare. RELEVANCE TO CLINICAL PRACTICE: Home care organisations can best focus on clients already in care and people living alone, in offering home telecare. Nurses, who aim to enhance the client's adoption of home telecare, have to take into account clients' perceived attributes of such new technology.

Use of general practice services 5 years after an episode of mental illness: case-control study using electronic records.

BACKGROUND: Depression, anxiety, and emotional distress occur frequently and are usually treated in general practice. Little has been reported about the long-term course of these conditions and the long-term use of medical services. AIM: To follow up patients with depression, anxiety, and emotional distress in general practice for 5 years and examine the length and number of index episodes, prescribing behaviour, and the use of services in general practice. DESIGN AND SETTING: A case-control study using data from electronic medical records. METHOD: Three cohorts of patients with depression (n = 453), anxiety (n = 442), and emotional distress (n = 185) were compared against a cohort of control patients (n = 4156) during a 5-year follow-up from 2007 to 2011. The occurrence or recurrence of the index disorders, other psychological disorders or medical conditions, the numbers of prescriptions, and the number of contacts with the general practice were all examined. RESULTS: Patients in the depression group had 1.1 followup episodes of depression, those in the anxiety group had 0.9 follow-up episodes of anxiety, and those in the emotional distress group had 0.5 follow-up episodes of emotional distress during the 5 years. All three groups had more consultations (for both psychological and somatic reasons) during each of the follow-up years than control patients. Furthermore, the groups with mental health disorders were given more prescriptions for psychopharmacological treatment. CONCLUSION: Five years after the index episode in 2007, patients with an episode of depression, anxiety, or emotional distress are still not comparable with control patients, in terms of the prevalence of mental health conditions, the number of prescriptions, and healthcare use.

Determinants of general practitioner's cancer-related gut feelings-a prospective cohort study.

BACKGROUND: General practitioners (GPs) use gut feelings to diagnose cancer in an early stage, but little is known about its impact. METHOD: Prospective cohort study of patients in 44 general practices throughout the Netherlands, from January 2010 until December 2013. GPs completed a questionnaire regarding gut feelings, patient and GP characteristics, if they noticed a cancer-related gut feeling during patient consultation. Follow-up questionnaires were sent 3 months later requesting information about the patient's diagnosis. χ(2), univariate and multivariate logistic regression and multilevel analyses were performed. RESULTS: A gut feeling (N=366) is most often triggered by weight loss (24%, N=85) and rare GP visits (22%, N=76), but all triggers were not predictive of cancer in a multivariate analysis. Most GPs (95%) acted immediately on the gut feeling, either referring to a specialist or by performing additional medical tests. The average positive predictive value of cancer-related gut feeling was 35%, and it increased with 2% for every year a patient becomes older, and with 3% for every year a GP becomes older. CONCLUSIONS: GP's gut feeling for cancer proves to be a useful tool in diagnosing cancer and its relative high predicting value increases if the GP is older or more experienced and when the patient is older. How can younger GPs be trained to increase the predictive value of their gut feeling?

Reducing antibiotic prescriptions for respiratory tract infections in family practice: results of a cluster randomized controlled trial evaluating a multifaceted peer-group-based intervention.

Irrational antibiotic use for respiratory tract infections (RTI) is a major driver of bacterial resistance. The aim of this study was to evaluate the effect of a multifaceted peer-group based intervention aiming to reduce RTI-related antibiotic prescriptions in family practice. This was a cluster randomized controlled trial with pre- and follow-up measurement. The intervention was implemented through PharmacoTherapy Audit Meetings (PTAM) in which family physicians (FPs) and pharmacists collaborate. Four PTAM groups received the intervention consisting of: (1) FP communication skills training, including communication about delayed prescribing; (2) implementation of antibiotic prescribing agreements in FPs' Electronic Prescribing Systems; (3) quarterly feedback figures for FPs. Four other PTAM groups were matched controls. Primary outcome measure was the number of RTI-related antibiotic prescriptions after the intervention, assessed with multilevel linear regression analyses. Total number and number of prescriptions stratified by age (under/over 12 years) were analysed. At baseline, the average total number of RTI-related antibiotic prescriptions per 1,000 patients was 207.9 and 176.7 in the intervention and control PTAM groups, respectively. At follow-up, FPs in both the intervention and control groups prescribed significantly less antibiotics. For adolescents and adults, the drop in number of antibiotic prescription was significantly larger in the intervention groups (-27.8 per 1,000 patients) than the control groups (-7.2 per 1,000 patients; P<0.05). This multifaceted peer-group-based intervention was effective in reducing the number of RTI-related antibiotic prescriptions for adolescents and adults. To affect antibiotic prescribing in children other methods are needed.

Autonomous home-care nursing staff are more engaged in their work and less likely to consider leaving the healthcare sector: a questionnaire survey.

BACKGROUND: The need for home care is rising in many Western European countries, due to the ageing population and governmental policies to substitute institutional care with home care. At the same time, a general shortage of qualified home-care staff exists or is expected in many countries. It is important to retain existing nursing staff in the healthcare sector to ensure a stable home-care workforce for the future. However, to date there has been little research about the job factors in home care that affect whether staff are considering leaving the healthcare sector. OBJECTIVE: The main purpose of the study was to examine how home-care nursing staff's self-perceived autonomy relates to whether they have considered leaving the healthcare sector and to assess the possible mediating effect of work engagement. DESIGN, SETTING AND PARTICIPANTS: The questionnaire-based, cross-sectional study involved 262 registered nurses and certified nursing assistants employed in Dutch home-care organisations (mean age of 51; 97% female). The respondents were members of the Dutch Nursing Staff Panel, a nationwide group of nursing staff members in various healthcare settings (67% response rate). METHODS: The questionnaire included validated scales concerning self-perceived autonomy and work engagement and a measure for considering pursuing an occupation outside the healthcare sector. Logistic regression and mediation analyses were conducted to test associations between self-perceived autonomy, work engagement and considering leaving the healthcare sector. RESULTS: Nursing staff members in home care who perceive more autonomy are more engaged in their work and less likely to have considered leaving the healthcare sector. The positive association between self-perceived autonomy and considering leaving, found among nursing staff members regardless of their level of education, is mediated by work engagement. CONCLUSION: In developing strategies for retaining nursing staff in home care, employers and policy makers should target their efforts at enhancing nursing staff's autonomy, thereby improving their work engagement.

Determinants of increased primary health care use in cancer survivors.

PURPOSE: The number of cancer survivors is increasing, and patients with cancer often experience long-lasting consequences of cancer and its treatment. Because of the variety of health problems and high prevalence of comorbidity, primary care physicians (PCPs) seem obvious candidates to take care of these patients, and insight into primary health care (PHC) use of cancer survivors is needed. We aimed to find determinants for PHC use in cancer survivors. METHODS: Using data from the Netherlands Information Network of Primary Care, we determined the volume of PHC use in 1,256 adult patients with breast cancer, 503 patients with prostate cancer, and 487 patients with colorectal cancer 2 to 5 years after diagnosis and compared this with age- and sex-matched controls without cancer from the same practice. We also examined whether age, comorbidity, and time since diagnosis were related to PHC use. RESULTS: The mean annual number of primary care contacts was increased compared with control patients by 24% in patients with breast cancer (P<.001) and by 33% in patients with prostate cancer (P<.001). This difference remained constant between 2 and 5 years after diagnosis. In patients with colon cancer, the difference with controls tended to decrease with age (12% per 10 years; P=.005). CONCLUSION: PHC use is significantly increased 2 to 5 years after diagnosis of cancer, especially in younger patients without a chronic disease. Given the expected increase in cancer survivors, PCPs should prepare themselves for this increasing amount of aftercare. The development of multidisciplinary care standards for cancer survivors could be helpful.