Article Text


Patient satisfaction with in-centre haemodialysis care: an international survey
  1. Suetonia C Palmer1,
  2. Giorgia de Berardis2,
  3. Jonathan C Craig3,
  4. Allison Tong3,
  5. Marcello Tonelli4,
  6. Fabio Pellegrini2,5,
  7. Marinella Ruospo6,
  8. Jörgen Hegbrant6,
  9. Charlotta Wollheim6,
  10. Eduardo Celia6,
  11. Ruben Gelfman6,
  12. Juan Nin Ferrari6,
  13. Marietta Törok6,
  14. Marco Murgo6,
  15. Miguel Leal6,
  16. Anna Bednarek-Skublewska6,
  17. Jan Dulawa6,
  18. Giovanni F M Strippoli2,3,6,7,8
  1. 1Department of Medicine, University of Otago Christchurch, Christchurch, New Zealand
  2. 2Consorzio Mario Negri Sud, S. Maria Imbaro, Italy
  3. 3School of Public Health, University of Sydney, Sydney, New South Wales, Australia
  4. 4Division of Nephrology and Immunology, University of Alberta, Edmonton, Canada
  5. 5Scientific Institute Casa Sollievo della Sofferenza, Italy
  6. 6Diaverum Scientific Medical Office, Lund, Sweden
  7. 7Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
  8. 8Division of Nephrology and Transplantation, Department of Translational Medicine,Amedeo Avogadro University of Eastern Piedmont, Novara, Italy
  1. Correspondence to Professor Giovanni F M Strippoli; gfmstrippoli{at}


Objectives To evaluate patient experiences of specific aspects of haemodialysis care across several countries.

Design Cross-sectional survey using the Choices for Healthy Outcomes in Caring for End-Stage Renal Disease (CHOICE) questionnaire.

Setting Haemodialysis clinics within a single provider in Europe and South America.

Participants 2748 adults treated in haemodialysis.

Primary and secondary outcomes The primary outcome was patient satisfaction with overall care. Secondary outcomes included patient experiences of individual aspects of dialysis care.

Results 2145 (78.1%) adults responded to the questionnaire. Fewer than half (46.5% (95% CI 44.5% to 48.6%)) rated their overall care as excellent. Global perceptions of care were uninfluenced by most respondent characteristics except age and depressive symptoms; older respondents were less critical of their care (adjusted OR for excellent rating 1.44 (1.01 to 2.04)) and those with depressive symptoms were less satisfied (0.56 (0.44 to 0.71)). Aspects of care that respondents most frequently ranked as excellent were staff attention to dialysis vascular access (54% (52% to 56%)); caring of nurses (53% (51% to 55%)); staff responsiveness to pain or discomfort (51% (49% to 53%)); caring, helpfulness and sensitivity of dialysis staff (50% (48% to 52%)); and ease of reaching dialysis staff by telephone (48% (46% to 50%)). The aspects of care least frequently ranked as excellent were information provided when choosing a dialysis modality (23% (21% to 25%)), ease of seeing a social worker (28% (24% to 32%)), information provided about dialysis (34% (32% to 36%)), accuracy of information from nephrologist (eg, about prognosis or likelihood of a kidney transplant; 37% (35% to 39%)) and accuracy of nephrologists’ instructions (39% (36% to 41%)).

Conclusions Haemodialysis patients are least satisfied with the complex aspects of care. Patients’ expectations for accurate information, prognosis, the likelihood of kidney transplantation and their options when choosing dialysis treatment need to be considered when planning healthcare research and practices.

Statistics from

Strengths and limitations of this study

  • The study is based on a large multinational survey of patients with chronic kidney failure needing treatment with long-term dialysis. There were no specific exclusions other than refusal or inability to complete the survey questions.

  • This study adds knowledge across a large cohort of the specific aspects of dialysis care that fewer patients find satisfactory.

  • The limitations were the lack of data about the health service characteristics that might have contributed to patient experiences as well as linkages to patient relevant outcomes.


Patients treated with haemodialysis experience mortality rates approaching 15–20% each year1 and have profoundly impaired quality of life,2 ,3 contributed to by severe symptoms of fatigue, low appetite, pain, sleep disorders, anxiety, nausea and restless legs.4 While interventions in haemodialysis trials and healthcare regulations have largely focused on biomarker endpoints and quantitative outcomes (mortality and cardiovascular events) to evaluate care, dialysis patients value normalisation of their lives, economic efficiency in healthcare and how their personal preferences are met, including reducing dietary and travel restrictions.5 ,6 This mismatch in patient, provider and research priorities has resulted in clinical research and practice that have not improved patient-centred outcomes for dialysis patients7–11 and consumed considerable resources.12

Given that patients treated with in-centre haemodialysis attend dialysis care at least three times per week for several hours each time, their experiences of dialysis care are likely to have an important impact on living with chronic illness.3 ,13 In contrast, health funders have traditionally used only clinical performance indicators such as anaemia, blood pressure, nutrition, dialysis vascular access and adequacy of solute removal to evaluate and allocate reimbursement for dialysis provision.14–17 While improving patient satisfaction with dialysis treatment has the potential to increase quality of life and improve patient-level outcomes, data to inform this objective are scarce.18 ,19 Studies indicate that healthcare delivery in the later stages of chronic kidney disease such as predialysis nephrology care, multidisciplinary management, psychoeducation interventions and prognosis communication may improve quantitative health outcomes in the dialysis setting, but there is little information on the effects of these strategies on outcomes relevant to patients, that include symptoms, function and quality of life.20–24 In addition, evaluations of patient experiences of haemodialysis care are available and can shape our knowledge about what patients value, but in existing studies smaller population sizes within single countries limit the power to adjust for case mix,19 and perceptions of care are limited to global scores which may restrict our understanding of the contributions of specific, and potentially modifiable, aspects of care on overall patient experience.18

Greater understanding of how patients experience all facets of long-term dialysis is needed to inform the design of large-scale trials which evaluate targeted healthcare strategies to improve the lives of dialysis patients in ways they value. Accordingly, we aimed, for the first time, to describe patient satisfaction with haemodialysis care in a large multinational cohort to assess patients’ experiences of haemodialysis care while accounting for clinical and demographic characteristics.



We used data from Diaverum, a network that provides renal care including long-term in-centre haemodialysis treatment for more than 20 000 patients in Europe and South America and surveys patients at least annually about their satisfaction with care. We conducted a cross-sectional analysis of routinely gathered survey data collected in 2008. We selected a convenience sample of 15% of patients in the network from clinics that were willing to contribute. Data were included for selected patients who were aged 18 years or older and treated with haemodialysis between January and June 2008 in centres located in Europe (Hungary, Italy, Poland and Portugal) and South America (Argentina). All clinical centres were managed during the study period according to the same standards of care. Of the 2748 patients selected (Argentina, n=670; Hungary, n=683; Italy, n=880; Poland, n=477; Portugal, n=38), 2145 (78.1%) responded and 1846 (67.2%) provided complete responses to all questions. The study was conducted according to the requirements of the Declaration of Helsinki. The mean age and gender composition of our cohort is similar to prevalent patients treated with kidney replacement therapy in Europe.25

Key measures

We collected data from patient responses to the Choices for Healthy Outcomes in Caring for End-Stage Renal Disease (CHOICE) questionnaire, which evaluates satisfaction with dialysis treatment (see the online Appendix for the full survey).26 The CHOICE questionnaire was originally developed by Rubin and colleagues using a focus group of long-term in-centre haemodialysis and home-based peritoneal dialysis patients to identify aspects of dialysis care most important to them. The items identified were then ranked by a larger number of long-term dialysis patients to identify the top 25 items they considered extremely important. The questionnaire asks 20 questions about patients’ experiences relating to these different aspects of dialysis care on a 5-point Likert scale (poor, fair, good, very good, excellent). In addition, three questions ask patients to rate the overall quality of their care (poor, fair, good, very good, excellent or not applicable), how much about their care could be better (many things, a few things, one or two things, and nothing could be better at all) and whether they would recommend their care service to others who may need dialysis care (definitely not, probably not, not sure, probably yes and definitely yes; see online supplementary online Table 1). In addition, we summarised measures of key performance indicators for dialysis within each country (see online supplementary online Table 2) for the two quarters in which satisfaction data were collected and reported these as overall performance scores for each participating country.

In the present analysis, the question ‘How easy is it to meet the social worker when you want to?’ was only included in the annual survey in Hungary and the two global questions about care ‘Thinking about your dialysis care overall, how much could be better?’ and ‘Would you recommend your dialysis centre to a friend or relative who needs dialysis?’ were omitted in the annual survey of Italian patients.

Surveys were provided to patients by dialysis clinical staff during routine dialysis care. Patients self-completed the questionnaires anonymously during a dialysis session and data were de-identified. We then linked survey data to concurrent demographic, clinical and laboratory information in a clinical database using a unique patient identifier; additional data were provided where necessary by the treating physician on a standardised case report form. We used questionnaires in the patients’ native language after translation and linguistic validation by the MAPI Institute (


We considered a response to the survey as complete when interpretable answers were provided for all survey questions and partially complete when one or more answers were missing. We used χ2 tests and Mann-Whitney U tests to compare the characteristics of patients who responded to the survey with those who did not. The primary outcome of interest was the proportion of respondents who evaluated their overall care as ‘excellent’. We also estimated the proportion of respondents who evaluated each separate dimension of care as ‘excellent’. To account for the multilevel nature of the data (patients clustered within countries) and to control simultaneously for the possible confounding effects of the different variables, we used multivariate multilevel logistic regression models.27 ,28 We constructed clustering and case mix adjusted models that controlled for the following potential confounding variables: age, gender, education level, occupational status, marital status, distance to travel to the dialysis centre, kidney transplant waiting list status, comorbid conditions (diabetes mellitus, hypertension, cardiovascular event), depression score, cause of end-stage kidney disease, duration of dialysis per session, dialysis dose, adequacy of dialysis and serum values of haemoglobin and phosphorus. We performed multilevel logistic regression using the SAS language macro routine Proc GLIMMIX (SAS Institute Inc, Cary, North Carolina, USA; Release V.9.1, 2002–2003;


Characteristics of patients in the network and respondents to questionnaire

Respondents were younger and lived closer to their dialysis centre than non-respondents (table 1). Questionnaire response rates differed by country; patients in Portugal were most likely to respond to the survey (97.4%), with decreasing response rates in Argentina (81.9%), Hungary (81.4%), Poland (74.4%) and Italy (73.6%). Overall, respondents were 61.0±15.5 years, most were men (55.5%), 40.2% had 6–8 years of school education and about half had depressive symptoms according to the Center for Epidemiological Studies-Depression (CES-D) Scale (score of 18 or above). Two-thirds of respondents were married (60.8%), most were unemployed (68.8%) and a minority had previously received a kidney transplant (6.9%).

Table 1

Characteristics of participants who responded and those who did not respond to satisfaction survey

Survey responses

Fewer than half of respondents rated their overall care as excellent (1057/2271; 46.5% (95% CI 44.5% to 48.6%)) and about three-quarters rated their care as excellent or very good (1783/2271; 78.5% (CI 76.8% to 80.2%); figure 1). The proportion rating their overall care as excellent was lowest in Poland (13.7%), with an increasing proportion in Argentina (30.3%), Italy (61.2%), Hungary (63.5%) and Portugal (83.8%;see online supplementary online Table 1).

Figure 1

Probabilities of excellent or very good ratings of overall care by dialysis patients.

Table 2 shows the association between respondent characteristics and the proportion rating haemodialysis care as excellent. In analyses clustered by country and controlled for demographic and clinical variables, older respondents were more likely to consider care excellent (adjusted OR (AOR) for those 70 years or older, 1.44 (CI 1.01 to 2.04) compared with those aged 18–49 years) and those with depressive symptoms were less likely to consider that care met excellent standards (AOR 0.56 (CI 0.44 to 0.71)) compared to those without depressive symptoms. Gender, education, marital status, comorbidity (including diabetes and cardiovascular disease) and the time spent on dialysis each week were not associated with perspectives of overall care.

Table 2

Proportion of patients who gave an excellent rating to overall haemodialysis care according to patient characteristics

Figure 1 shows the proportion of respondents who considered that nothing about their care could be better, and online supplementary online Table 3 provides responses according to clinical, demographic and treatment-based characteristics. Overall, about one-third of respondents considered that nothing about their care could be better (486/1477; 32.9% (CI 30.6% to 35.3%)). Respondents aged 70 years or older (AOR 2.20 (CI 1.47 to 3.31)) and those living further away from their dialysis centre (AOR 1.39 (CI 1.04 to 1.85)) were more likely to consider that no aspect of their care required improvement. In the four countries in which this question was asked (Argentina, Hungary, Poland and Portugal), compared with Argentina, patients in Hungary (AOR 1.37 (CI 1.06 to 1.77)) and Poland (AOR 1.82 (CI 1.37 to 2.42)) were more likely to consider than nothing about their care needed to be changed.

In the four countries in which the question ‘would you recommend your dialysis centre to a friend or relative who needed dialysis?’ was asked, 1022 of 1587 respondents (64.4% (CI 62.0% to 66.7%)) would definitely recommend their dialysis centre. Older respondents (AOR 1.84 (CI 1.24 to 2.74)) and those living further from their dialysis centre (AOR 1.37 (CI 1.03 to 1.83)) were more likely to recommend their dialysis centre to others for care, whereas those with depressive symptoms were less likely to recommend their care to others (AOR 0.67 (CI 0.51 to 0.87); see online supplementary eTable 4). Compared with Argentina, strong recommendations would more likely be made by respondents in Hungary (AOR 2.38 (CI 1.84 to 3.07)) and Portugal (AOR 28.2 (CI 3.84 to 207.39)).

The five items that respondents rated most frequently as excellent were ‘attention of staff to cleanliness of the dialysis vascular access site’ (54% ranked as excellent), ‘caring and helpfulness of nurses’ (53%), ‘response of staff to pain or discomfort’ (51%), ‘caring, helpfulness and sensitivity of dialysis staff’ (50%) and ‘ease of reaching staff by telephone’ (48%; figure 1). The five items rated least frequently by respondents as excellent were ‘the amount of information when choosing dialysis modality’(23%), ‘the ease of seeing a social worker when needed’ (28%), ‘amount of information from dialysis staff’ (34%), ‘accuracy of information from nephrologist including prognosis and likelihood of getting a kidney transplant’ (37%) and ‘accuracy of instructions from nephrologist’ (39%). In general, the amount of caring and concern shown by staff, particularly by nurses, and the ability of patients to contact dialysis staff were ranked highly, whereas the amount and delivery of information about treatment choices and prognosis as well as access to social worker staff and nephrologists were ranked lowest.

A composite measure of key performance indicators were similar in the included countries during the recruitment period (in descending order with a higher value indicating higher performance: Hungary 1535, Portugal 1551, Italy 1543, Poland 1381 and Argentina 1303) and were associated with the proportion of respondents reporting excellent overall care (for each unit increase in performance score, the proportion of respondents who ranked care as excellent increased by 0.21% (95% CI −0.02% to 0.44%).


We report the largest study of patient satisfaction with dialysis care to date and identify specific deficits in the long-term dialysis care across several countries. Most respondents viewed their overall dialysis care as below excellent and needing improvement. Specifically, while the majority of respondents approved of the more technical aspects of dialysis treatment (attention to the cleanliness of the dialysis vascular access site, caring and helpfulness of nurses and dialysis staff, and attention by staff to immediate needs (pain, discomfort, sterile procedures)), a minority were satisfied with the more complex and integrated components of care. These were the accuracy and amount of information given by staff to patients about their dialysis treatment, prognosis and making choices between peritoneal dialysis and haemodialysis in addition to support from social worker staff. Older respondents were generally less critical of their haemodialysis care, while those with depressive symptoms were less frequently satisfied. Other demographic and clinical features did not reliably influence perceptions of overall care and the country of treatment had inconsistent effects on satisfaction. Better dialysis care performance scores were associated with higher overall patient satisfaction.

Our patients’ perspectives together with other similar studies from the USA19 and The Netherlands18 emphasise that deficiencies in dialysis care are consistently found and need to be considered specifically when conducting research to improve dialysis patient outcomes. This is particularly relevant as existing interventions in the dialysis setting, including anaemia management,7 control of phosphorus29 and parathyroid hormone levels,30 dialysis dose and flux,9 and starting dialysis earlier8 have not improved patient well-being despite evaluation in thousands of patients. Our respondents, consistent with the findings of others,31–33 report specifically receiving inadequate information about their illness journey and their dialysis treatment options. In our and other chronic diseases settings, patients report needing more information about the causes and progression of their disease, disease symptoms and their impact, and social and financial support.34 ,35 Patients, often due to the competing demands of daily life, rely on healthcare professionals to initiate discussions about care planning and not having future-oriented conversations reduces patients’ capacity for hope.36 Patients perceive poor communication as reflecting secrecy, misinformation and insensitivity. Subsequently, inadequate information reduces the ability of patients and their families to care for themselves and induces worry.34 While education strategies increase patients’ willingness to choose self-care dialysis,23 the wider effect of educational interventions in the dialysis setting that answer unmet questions about disease trajectory and treatment choices with the aim of improving patient experiences of end-stage kidney disease are not well understood and warrant larger-scale trials. Research in other settings suggest specific interventions to improve information provision, such as training and support for healthcare staff in communication and basic counselling, and overcoming barriers to good communication including addressing time pressures and understaffed environments and considering innovative non-written methods might be appropriate complex strategies for trials in the dialysis setting.34

This study indicates that most patients in dialysis settings want more accurate information about their prognosis, in line with experiences of other dialysis patients and those who have cancer.36 ,37 Accurate prognostic information empowers patients38; when discussions about prognosis do not occur, patients and their families may (incorrectly) fear the worst. For dialysis patients in our study, the information they receive about prognosis is frequently unsatisfactory including specifically understanding their chances of receiving a kidney transplant and their survival. Physicians in other medical specialties similarly provide insufficient information about prognosis39 and infrequently check their patients’ understanding during consultations.40 Physicians commonly find disclosing prognosis stressful and desire more training and guidance for this aspect of clinical practice.41 Our findings suggest that meeting patients’ expectations about information is an important but potentially neglected aspect of dialysis care and is consistent with the data showing that patients are infrequently involved in discussions about prognosis and likelihood of transplantation.33 The effect of increased clinician training in prognosis provision about survival and transplantation could form the basis of a testable strategy in future health services research in dialysis.

The patient-centred movement in healthcare (‘nothing about me without me’)42 has engendered considerable data on the issues of most importance to patients and their families to highlight the mismatch between patients’ values and the outcomes routinely measured in research and clinical practice, including for patients with advanced kidney disease.5 ,43 While landmark trials in nephrology over the past three decades have measured treatment effectiveness using biomarker levels and major cardiovascular events and survival, emerging data show that patients are frequently willing to forgo survival in exchange for fewer restrictions on their daily life, and prioritise collaborative research aimed at improving the way they feel, function and survive.5 ,6 In addition, contemporary studies of communication and educational strategies as well as complex healthcare service changes in dialysis have used similarly quantitative outcomes to assess treatment effectiveness, which have included urgent dialysis start, vascular access processes and survival.20 ,21 ,44 We suggest that, in line with patient-centred data, trials of communication or education for dialysis patients might consider aspects of quality of life valued by patients as key outcomes for assessing effectiveness.

Notably, patient satisfaction was largely unrelated to most clinical or demographic patient characteristics despite a large sample size and similar to other studies in the US A and The Netherlands, suggesting that lower satisfaction of many aspects of dialysis care is a global patient experience. Older patients in this study rated their overall care more highly, consistent with a recent study of patient perceptions of dialysis care in The Netherlands,18 and of studies of patient satisfaction across health services more generally,45 ,46 despite the evidence that older patients may actually receive lower quality care.47 In contrast, depressive symptoms markedly reduced satisfaction in this study (even when controlling for markers of health status and comorbidity); similar findings have been reported in other settings.48 Those with depressive symptoms voluntarily ration the time they have with medical staff, which may in turn impair patient–clinician communication and serve to decrease their satisfaction with care overall.48 Notably, in other chronic disease settings, patient satisfaction is increased in association with better patient–clinician interaction and support for patient self-management,49 and high levels of patient satisfaction for interpersonal skills, technical quality and access to care can be present in chronic illness settings such as diabetes mellitus and rheumatoid arthritis.50

Limitations of the study

Although we provide considerable satisfaction data for dialysis patients in several countries, our analysis should be interpreted in light of the study limitations. First, we did not evaluate in detail the influence of healthcare systems in which the dialysis clinics were situated (including features such as staffing-levels51 or number of beds52) on patient satisfaction, although we did find an association between overall satisfaction and global clinical performance. While interpersonal relations with healthcare workers are the most frequently mentioned by patients when asked to rate their care, contextual factors relating to conditions of medical services are also described commonly by patients and often lead to negative comments about healthcare.53 Second, we took a quantitative approach to assessing patients’ perceptions, which may be suboptimal for understanding the full range of feelings, values and experiences of receiving dialysis care. In addition, satisfaction and dissatisfaction may not simply be alternative ends of a single spectrum of perception and may in fact exist side-by-side within a patient's experience of care.54 Third, we did not capture satisfaction with a specific healthcare event and surveyed patients who had been treated with dialysis for 3 years on average. The potential lag between pivotal patient experiences and the survey may have introduced recall bias.55 Fourth, we did not capture longitudinal data to determine any association between perceptions of care and health-related behaviour and outcomes including healthcare utilisation, quality of life or survival. Finally, the findings in this study may not be applicable to other dialysis settings including peritoneal dialysis or home-based haemodialysis care and regional settings outside our survey countries including many USA, European and UK dialysis settings. In addition, the study survey predates more widespread use of haemodiafiltration which may be associated with greater haemodynamic stability during dialysis therapy and different levels of patient satisfaction.

Implications of the study

As measures of patient experience are distinctive indicators of healthcare quality,55 our analysis suggests that several strategies might improve care for patients in the later stages of chronic kidney disease. First, patients need better information about their choices of treatment for end-stage kidney disease including dialysis modalities. A recent systematic review suggests that this is optimally provided when the glomerular filtration rate falls below 30 mL/min/1.73 m2 and well in advance of preparations for dialysis vascular access.31 Second, formal care strategies that provide patients with information about prognosis and the impact of end-stage kidney disease and its treatments on their life earlier in the course of kidney disease need to be developed and assessed. Current practices for assessing and discussing prognosis are manifestly inadequate,36 and our present reliance on individual physicians to initiate such discussions is not meeting the needs of our patients. Third, better delivery of information about dialysis from nephrologists and dialysis staff is expected by patients, and greater understanding of the information that patients need and optimal mode(s) of delivery may improve care.


This large study of patient satisfaction with different aspects of long-term haemodialysis care suggests that patients’ needs are not being fully met. The findings suggest that meeting patient expectations about information on dialysis choices and prognosis may be critical for improving patient experiences of long-term dialysis care and can form the basis for future healthcare services research in the dialysis setting.


The authors would wish to acknowledge the contribution of all patients who responded to surveys included in this analysis.

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  • This paper has previously been presented in abstract form at the American Society of Nephrology Kidney Week 2013, Atlanta, as a poster communication on Friday, 8 November 2013.

  • Contributors SCP designed the study, interpreted data analysis, wrote the first draft and revised the paper. GdB designed the data analysis, cleaned and analysed data, and drafted and revised the paper. JCC assisted with study design, interpreted the data analysis, and drafted and revised the paper. AT interpreted the data analysis, and drafted and revised the paper. MT assisted with data collection tools, interpreted the data analysis and drafted and revised the paper. FP interpreted the data analysis and revised the paper. MR monitored data collection for the whole study, assisted with data collection and cleaning, interpreted the data analysis and revised the paper. JH and CW interpreted the data analysis and revised the paper. EC, RG, JNF, MT, ML, AB-S and JD assisted with data collection, interpreted the data analysis and revised the paper. GFMS designed the study and data collection tools, monitored data collection for the whole study, interpreted the data analysis and drafted and revised the paper. He is the guarantor. All authors had full access to all of the data (including statistical reports and tables) in the study and can take responsibility for the integrity of the data and the accuracy of the data analysis.

  • Funding This study was funded by an unrestricted educational grant from Diaverum.

  • Competing interests GFMS is Senior Vice-President of Scientific Affairs at Diaverum. JH is Senior Vice-President Medical Operations—Chief Medical Officer of Diaverum. MR, CW, EC, RG, JNF, MT, ML, AB-S and JD are employees of Diaverum. SCP receives a fellowship from the Consorzio Mario Negri Sud, Italy provided by an unrestricted educational grant from Amgen Dompé. SCP is a 2012 L'Oreal UNESCO For Women in Science Australia and New Zealand Fellow.

  • Ethics approval We obtained ethics approval for the analyses of routinely collected data from the University of Sydney Human Research Ethics Committee on 27 February 2013. The authorised personnel are AT, JCC and GFMS. The project number for approval was 2013/031 and included approval of the satisfaction survey, the data custodian (Diaverum) and the survey data dated January 2008.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement No additional data are available.

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