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* From Division of Pulmonary and Critical Care Medicine (Dr. Knauft, Engelberg, and Curtis, and Ms. Nielsen), Department of Medicine, School of Medicine; and Program in Social and Behavioral Sciences (Dr. Patrick), Department of Health Services, School of Public Health, University of Washington, Seattle, WA.
Correspondence to: J. Randall Curtis, MD, MPH, Division of Pulmonary and Critical Care Medicine, Harborview Medical Center, Box 359762, 325 Ninth Ave, Seattle, WA 98104-2499; e-mail: jrc{at}u.washington.edu
| Abstract |
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Design: Fifteen barriers and 11 facilitators to patient-physician communication about end-of-life care were generated from focus groups of patients with COPD. We subsequently conducted a cross-sectional study of 115 patients with oxygen-dependent COPD and their physicians to identify the common barriers and facilitators and examine the association of these barriers and facilitators with communication about end-of-life care.
Participants and setting: Patients with oxygen-dependent COPD were recruited from clinics at a university, county, and Veterans Affairs teaching hospital, and an oxygen delivery company. We also recruited the physician identified by each patient as the doctor primarily responsible for their lung disease.
Measurements and results: Patients were interviewed by trained research interviewers. Physician data collection was completed by mail survey. Participation rates were 40% for patients and 86% for physicians. Only 32% of patients reported having a discussion about end-of-life care with their physician. Two of 15 barriers and 8 of 11 facilitators were endorsed by > 50% of patients. The most commonly endorsed barriers were "Id rather concentrate on staying alive," and "Im not sure which doctor will be taking care of me." Two barriers were significantly associated with lack of communication, as follows: "I dont know what kind of care I want," and "Im not sure which doctor will be taking care of me." The greater the number of barriers endorsed by patients, the less likely they were to have discussed end-of-life care with physicians (p < 0.01), suggesting the validity of these barriers. Conversely, the more facilitators, the more likely patients were to report having had end-of-life discussions with their physicians (p < 0.001).
Conclusion: Although patients endorsed many barriers and facilitators, few barriers were endorsed by most patients. Barriers and facilitators associated with communication are targets for interventions to improve end-of-life care, but such interventions will likely need to address the specific barriers relevant to individual patient-physician pairs.
Key Words: barriers COPD death dying end-of-life care palliative care physician-patient communication
| Introduction |
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Despite this need for improved patient-physician communication about end-of-life care and improved access to palliative care for patients with COPD, there are relatively few data to guide physicians in how to accomplish these goals. For example, the updated Global Initiative on COPD guidelines,7 assembled by an expert panel under the auspices of the National Heart Lung and Blood Institute and the World Health Organization, do not include recommendations on providing quality end-of-life care for patients with COPD in part because of the relative scarcity of data on how to improve this care. American Thoracic Society/European Respiratory Society COPD guidelines8 contain a section on end-of-life care that highlights the limited data available regarding patients with COPD and calls for research on the barriers to communication about end-of-life care. Identification of specific ways to overcome barriers to this communication thereby promoting high-quality, end-of-life care would be beneficial, especially since end-of-life care may be worse for patients with COPD compared with those with other diseases such as lung cancer.39
Because patient-clinician communication about end-of-life care is important for patients with COPD and yet does not commonly occur, the goal of this study was to identify the common and important barriers and facilitators of this communication. Once identified, these barriers and facilitators could become the targets for interventions to improve communication about end-of-life care and ultimately be used to help physicians find ways to improve the quality of this care.
| Materials and Methods |
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We used two enrollment methods because of differing requirements from different Institutional Review Boards. At the county and university hospitals, the physician or nurse asked the patient whether he or she was willing to talk with a study staff member. At the VA medical center and oxygen delivery company, a letter was mailed to all patients receiving oxygen, asking them to call a toll-free voice mail if they did not want to participate; if they did not leave a message declining participation, they received a call from a study staff member. Every participant was also asked to identify the doctor they believed to be primarily responsible for caring for their lung disease. The Human Subjects Committee at the University of Washington and the Institutional Review Board at all institutions involved approved all study procedures, and all patients signed consent forms.
Interviews and Questionnaires
Patient data collection was conducted with in-person interviews by a trained research interviewer. Demographic information was gathered including age, gender, and race. Patients were asked their amount of time receiving oxygen therapy and current comorbid illnesses. FEV1 was obtained using a portable spirometer according to American Thoracic Society standards.12 Alternatively, if patients refused spirometry and consented to medical record review, then the most recent FEV1 measure was obtained from the medical record. Physician data collection was completed with a mail survey.
Development of the Barriers and Facilitators Questionnaire
The barriers and facilitators questionnaire for patients was adapted from a version developed through focus groups of patients with AIDS13 and previously validated in a cohort of patients with advanced AIDS.14 To adapt this questionnaire to patients with COPD, we conducted three additional focus groups comprising 15 patients with COPD. During these focus groups, we asked patients to identify the barriers and facilitators for patient-physician communication about end-of-life care. Focus groups were audiotaped and transcribed verbatim. Investigators reviewed the transcripts to identify barriers and facilitators using content analysis.15 In addition, focus group participants were asked to examine the barriers and facilitators identified in the prior study13 and state whether these applied to them. On the basis of these focus groups, 1 new barrier was added, increasing the number of barriers from 14 to 15, and 2 new facilitators were added, increasing the number of facilitators from 9 to 11 (see "Results" section for new questions). To determine whether each barrier and facilitator applied to each patient, we read each item and asked, "Does this apply to you?" (questionnaire available from the investigators).
The barriers and facilitators questionnaire for physicians was developed from focus groups of physicians in general medicine, pulmonary medicine, and infectious diseases working in university and community settings.13 The physician questions describe patient-specific barriers, and physicians completed a separate questionnaire for each patient. The physician questions used the same format as the patient questionnaire.
Data Analysis
Demographic information, end-of-life care discussions, barriers, and facilitators were analyzed using descriptive statistics. We performed analyses to identify whether each barrier and facilitator was associated with patient and physician demographic characteristics, using
2 analysis with dichotomous variables (eg, race and sex) and Mann-Whitney U tests for continuous variables (eg, age and total months receiving oxygen). We did not conduct multivariate analyses for associations with patient and physician characteristics because there were no barriers or facilitators that were significantly associated with more than one patient characteristic or physician characteristic. Although barriers and facilitators were patient specific, we used the number of patients as the denominator for all analyses. We used a Spearman correlation coefficient to examine associations between the number of barriers or facilitators endorsed by patients with the numbers endorsed by their physicians and Mann-Whitney U tests to examine differences between the numbers of barriers or facilitators endorsed by patients who had treatment conversations with their physicians and those who did not. A two-tailed p value
0.05 was considered statistically significant.
| Results |
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Demographic characteristics of the patients and physicians are shown in Table 1 . Patients had a mean age of 67.5 and a mean FEV1 of 29.0% of predicted. Approximately three fourths of the patients were male, and 84% of the patients were white. More than 80% of the physicians were trained in internal medicine, and almost 60% had subspecialty training in pulmonary medicine.
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Among physicians, female physicians were more likely to endorse "I work in a system that expects me to have end-of-life discussions with my patients" (p = 0.001). Nonwhite physicians were more likely to endorse a number of barriers as follows: (1) "This patient doesnt know what kind of care he wants if he gets sick" (p = 0.040); (2) "This patient is not ready to talk about the care he wants if he gets sick" (p = 0.022); (3) "This patients ideas about the kind of care he wants change over time" (p = 0.012); and (4) "I worry that discussing end-of-life care will take away his hope" (p = 0.031).
Summary scores for barriers or facilitators, comprised of the total number of items endorsed, were calculated for both patients and physicians. Patients endorsed a median of 4 barriers, with 3% (n = 3) of patients endorsing no barriers, and no patients endorsing all 15 barriers. Nine was the maximum number of barriers endorsed by 3% (n = 3) of patients. For facilitators, patients endorsed a median of 7 facilitators, with a minimum endorsement of 2 facilitators (2%; n = 2), and a maximum endorsement of all 11 facilitators (3%; n = 3). Physician-endorsed barriers were patient specific and, therefore, we used the number of patients as the denominator for physician-identified barriers. Physicians endorsed a median of one barrier per patient, with 16% (n = 18) of patients having their physicians endorsing no barriers, and 2% (n = 2) of patients having their physicians endorsing six barriers. No patient had a physician endorsed all seven barriers. For facilitators, the physicians endorsed a median of four facilitators per patient, with 1% (n = 1) of patients having physicians endorsing no facilitators, and 8% (n = 9) of patients having physicians endorsing all six physician facilitators. The associations between patient and physician counts of barriers and facilitators were assessed using Spearman correlation coefficients. This analysis showed that there was no correlation between the number of barriers or facilitators endorsed by each patient and the number of barriers or facilitators endorsed by that patients physician (barriers: Spearman r = 0.15 [p = 0.16]; facilitators: Spearman r = 0.10 [p = 0.37]).
Barriers and Facilitators That Predict Having Discussions About End-of-Life Care
Those patients who reported having had a discussion about the treatments she/he would want if she/he became too sick to speak for him/herself reported a median of three barriers compared with those patients who reported not having such a discussion who reported a median of four barriers (p = 0.01). Similarly, those patients who reported having had this type of discussion reported a median of eight facilitators, whereas those who reported not having had such a discussion reported a median of only six facilitators (p < 0.001). Therefore, patients who reported having had a discussion about end-of-life care reported fewer barriers and more facilitators than patients who did not report having had such a discussion.
In addition to examining the association between the total numbers of barriers and facilitators and communication about end-of-life care, we also examined whether individual barriers and facilitators were associated with having had end-of-life discussions, as reported by patients. For patient-endorsed barriers, two barriers were associated with not having had end-of-life discussions, as follows: (1) "I dont know what kind of care I want if I get very sick" (p = 0.002); and (2) "Im not sure which physician will be taking care of me if I get very sick" (p = 0.004). There were also two patient facilitators associated with having had end-of-life discussions, as follows: (1) "My physician is good at talking about end-of-life issues" (p = 0.001); and (2) "Others have talked to me about end-of-life care" (p = 0.006). There were no physician-identified barriers associated with not having had end-of-life discussions and one physician-identified facilitator associated with physician reports of having had end-of-life discussions, as follows: "The patient and I have a good relationship" (p < 0.002).
| Discussion |
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One potential method to increase the communication about end-of-life care may be to incorporate nonphysician clinicians into these discussions. Prior studies2324 have suggested a potential role for such clinicians. It is interesting that discussions with such clinicians were reported to be a facilitator to patient-physician communication about end-of-life care in our prior qualitative work,13 and in the current study patients who endorsed speaking with other clinicians about end-of-life care were more likely to have discussed end-of-life care with their physician. These findings further support the potential role for nonphysician clinicians in facilitating discussions about end-of-life care. Intervention studies are needed to confirm the role of such clinicians in improving communication between patients and physicians.
One of the systems features important to patients and their families about end-of-life care is continuity of care.232526 Two thirds of patients reported that a barrier to discussions about end-of-life care was that patients were not sure which doctor will be taking care of them, and this was the second most commonly endorsed barrier. This finding is likely influenced by the fact that the majority of patients in this study were cared for in an academic setting, where continuity may be more difficult to achieve than in community-based practice. This may not be as important a barrier in nonacademic settings.
Barriers and Facilitators to Communication About End-of-Life Care
Patients endorsed large numbers of different barriers and facilitators. However, only two barriers were endorsed by more than half of the patients and, therefore, these two barriers represent potential targets for intervention with a majority of patients. The first barrier, "Id rather concentrate on staying alive than talk about death," suggests that physicians must be skilled in talking about this difficult subject with patients who would rather not talk about it. It may be helpful in these situations to acknowledge that this is a difficult topic for discussion but an important one for patients and physicians to address. The second barrier, "Im not sure which physician will be taking care of me if I get very sick," suggests that discussions of continuity may be an important aspect to encouraging these discussions. The fact that 11 of 15 barriers were endorsed by at least 10% of patients, whereas only 2 barriers were endorsed by > 50%, suggests that interventions to overcome these barriers may need to target specific barriers that are relevant to individual patient-physician dyads. However, 7 of 11 facilitators were endorsed by > 50% of the patients. Therefore, these facilitators may represent topics that physicians could use to encourage communication about end-of-life care with a majority of patients. For example, if patients have a family member or friend who has died, this may represent an opportunity for physicians to begin and encourage a discussion about the patients preferences for end-of-life care.
Several patient barriers are associated with a lack of communication about end-of-life care and, therefore, these specific barriers may represent particularly important targets for interventions to improve end-of-life care. However, the fact that only one of these two barriers was endorsed by more than half of the patients also suggests that future interventions will need to target the specific barriers and facilitators that are relevant to individual patients and their physicians. The lack of an association between the number of barriers (or facilitators) identified by patients and the number of barriers (or facilitators) identified by physicians also suggests that interventions may be more successful if they target both patients and physicians.
Those patients who reported having had a discussion about end-of-life care report significantly fewer barriers and more facilitators than those who have not had such a discussion. This association suggests that the barriers and facilitators identified may be influential on the occurrence of communication. However, because of the cross-sectional study design, we cannot attribute a causal relationship between occurrence of communication and the barriers or facilitators. Future studies will be needed to determine whether an intervention targeting these barriers and facilitators can increase the occurrence of communication.
Finally, we found that several patient and physician characteristics were associated with some barriers to discussing end-of-life care. Although we do not believe these associations should be used to profile certain patients or physicians, nonetheless, exploration of the role of race, ethnicity, and gender on the barriers and facilitators to discussing end-of-life care may allow better understanding of the best way to use these barriers and facilitators to improve quality of care. Prior research142728 has shown that patient race and ethnicity are associated with patient attitudes toward communication about end-of-life care. Of note, the demographic variable associated with the most barriers was physician race. There is little research on the role of physician race or ethnicity on discussions about end-of-life care. Future research is needed to confirm and explore this relationship to ensure that interventions to improve communication about end-of-life care are culturally appropriate not only for patients but also for physicians.
Limitations and Conclusions
There were several potential limitations to our study. First, the majority of patients and physicians were in academic institutions and were in one city. These features may limit generalizability to other practice settings and other regions. Second, a large number of statistical comparisons were done and, therefore, one or more of the associations may have occurred by chance. We did not formally control for the number of statistical comparisons because the goal of this study was to generate hypotheses about the barriers and facilitators that could be used in intervention studies to improve the quality of communication. Furthermore, all associations occurred in the direction hypothesized. Nonetheless, it is important to acknowledge that some of the statistical associations may have occurred by chance alone. Third, some physicians had more than one patient enrolled in the study, and, therefore, these physicians were represented more than once. However, most physicians had only one patient (71%), and the highest number of patients any physician had in the study was six, which was the case for only one physician. Our sample size would not allow us to control for this clustering using statistical methods such as hierarchical linear models. Given the low number of patients per physician, it seems unlikely that this clustering had a significant effect on analyses. Nonetheless, this remains a limitation of this study. In addition, our sample size does not allow us to assess for differences across the different practice settings or recruitment strategies. Finally, the overall response rate was approximately 40% and was different with two different recruitment methods. The different response rate suggests that having a clinician known to the patient introduce the study may be a more effective method of recruiting patients than mailings for this type of study. Patients unwilling to participate in a study concerning end-of-life care may differ in their attitudes toward this care from those willing to participate. Although these results may not be generalizable to patients unwilling to participate in such research, there is no ethical alternative to disclosing the topic of research and obtaining full consent for participation. Future studies should find ways to improve participation rates in studies concerning end-of-life care.
We currently have a limited understanding of the perspective of patients with severe COPD with regard to the problems and issues they face in confronting advance-care planning. There is evidence3929 that end-of-life care for patients with severe COPD may be worse than for patients with other diseases. Despite the fact that the majority of patients with severe COPD report that they wish to discuss their preferences for end-of-life care with their physicians, only a minority actually do so.45 We have identified specific barriers and facilitators to this communication, and this description of barriers and facilitators is the first step in overcoming barriers and taking advantage of facilitators. Our findings may be useful in future interventions to improve communication about end-of-life care for these patients.
| Footnotes |
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This project was supported by a Career Investigator Award from the American Lung Association and the American Lung Association of Washington (Dr. Curtis).
Received for publication May 20, 2004. Accepted for publication December 15, 2004.
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