| Literature DB >> 28750605 |
Brett Hauber1, John Caloyeras2, Joshua Posner3, Deborah Brommage4, Vasily Belozeroff2, Kerry Cooper2.
Abstract
BACKGROUND: Patient engagement and patient-centered care are critical in optimally managing patients with end-stage renal disease (ESRD). Understanding patient preferences is a key element of patient-centered care and shared decision making. The objective of this study was to elicit patients' preferences for the treatment of secondary hyperparathyroidism (SHPT) associated with ESRD using a discrete-choice experiment survey.Entities:
Keywords: Conjoint analysis; Discrete-choice experiment; End-stage renal disease; Secondary hyperparathyroidism
Mesh:
Year: 2017 PMID: 28750605 PMCID: PMC5532768 DOI: 10.1186/s12882-017-0665-8
Source DB: PubMed Journal: BMC Nephrol ISSN: 1471-2369 Impact factor: 2.388
Attributes and levels in the treatment-choice questions
| Attribute | Attribute label | Levels |
|---|---|---|
| Probability of optimal laboratory values | Chance that the treatment keeps your labs within their recommended ranges | ▪ 80 out of 100 (80%) |
| Probability of symptom relief | Chance that the treatment relieves your SHPT symptoms | ▪ 75 out of 100 (75%) |
| Risk of hypocalcemia | Risk of low blood calcium | ▪ 0 out of 100 (0%) |
| Severity of nausea and vomiting | Nausea and vomiting (medication alternatives only) | ▪ None |
| Mode of administration | How you receive the medicine (medication alternatives only) | ▪ Given through dialysis line during your regular dialysis treatment |
| Cost | Out-of-pocket cost of treatment | ▪ $50 per month (medication alternatives only) |
SHPT secondary hyperparathyroidism
Fig. 1Example treatment-choice question. In the survey instrument, each choice question included a combination of the attribute levels presented in Table 1
Attributes included in the best-worst scaling questions
| Attributes | |
|---|---|
| Having a cut from 1 to 2 in. long on your neck | |
| Needing to stay in the hospital overnight after the operation | |
| Being under general anesthesia during the operation | |
| 1 out of 300 (0.3%) risk of serious bleeding during the operation | |
| 1 out of 100 (1%) risk of damage to the nerves that control the vocal cords because of the operation | |
| 5 out of 100 (5%) risk of having a hoarse voice for up to six months after the operation | |
| 1 out of 100 (1%) risk of dying because of the operation | |
| 2 out of 100 (2%) risk of having a seizure or convulsions | |
| 10 out of 100 (10%) risk of having low blood calcium | |
| Needing to take a pill every day | |
Fig. 2Example of a best-worst scaling question
Respondent characteristics
| Characteristic | Statistic or category | Overall ( |
|---|---|---|
|
| ||
| Age | Mean (SD) | 54.2 (14.0) |
| Missing | 2 | |
| What is your gender? | Female | 102 (51.0%) |
| Male | 96 (48.0%) | |
| Prefer not to answer | 2 (1.0%) | |
| How would you describe your race or ethnicity? | White or Caucasian | 120 (60.0%) |
| Black or African American | 52 (26.0%) | |
| Other | 27 (13.5%) | |
| Prefer not to answer | 6 (3.0%) | |
| What is your marital status? | Married / living as married / civil partnership | 89 (44.5%) |
| Not married | 109 (54.5%) | |
| Prefer not to answer | 2 (1.0%) | |
| What is the highest level of education you have completed? | High school or equivalent (e.g., GED) or less | 40 (20.0%) |
| More than high school | 156 (78.0%) | |
| Prefer not to answer | 4 (2.0%) | |
| Which of the following best describes your employment status? | Employed full-time | 24 (12.0%) |
| Retired | 53 (26.5%) | |
| Disabled / unable to work | 96 (48.0%) | |
| Other | 26 (13.0%) | |
| Prefer not to answer | 1 (0.5%) | |
| What was your total household income before tax and other deductions in 2014? | Less than $20,000 | 57 (28.5%) |
| $20,000 to $29,999 | 41 (20.5%) | |
| More than $29,999 | 75 (37.5%) | |
| Don’t know / not sure | 2 (1.0%) | |
| Prefer not to answer | 25 (12.5%) | |
|
| ||
| How long have you been receiving dialysis? | Less than 6 months | 2 (1.0%) |
| 6 months to less than 1 year | 26 (13.0%) | |
| 1 year to less than 2 years | 41 (20.5%) | |
| 2 years to less than 5 years | 78 (39.0%) | |
| 5 years to less than 10 years | 37 (18.5%) | |
| 10 years or more | 16 (8.0%) | |
| Have you previously received a kidney transplant? | Yes | 20 (10.0%) |
| No | 180 (90.0%) | |
| Are you on a kidney transplant waiting list? | I am currently on a kidney transplant waiting list | 63 (31.5%) |
| I am in the process of getting on a kidney transplant waiting list | 53 (26.5%) | |
| I am not on a kidney transplant waiting list | 84 (42.0%) | |
| Which of the following problems have you ever experienced because of your kidney disease? | Anemia (low hemoglobin) | 155 (77.5%) |
| Bleeding in the stomach or intestines | 9 (4.5%) | |
| Bone, joint, or muscle pain | 97 (48.5%) | |
| Muscle weakness | 115 (57.5%) | |
| Weakening of bones or bone fractures | 19 (9.5%) | |
| Changes in blood sugar (glucose) | 50 (25.0%) | |
| Fluid buildup in the lungs | 54 (27.0%) | |
| Hepatitis B, hepatitis C, or liver failure | 3 (1.5%) | |
| High blood pressure, heart attack, or heart failure | 112 (56.0%) | |
| High potassium levels | 91 (45.5%) | |
| Lack of appetite or poor nutrition | 76 (38.0%) | |
| Nerve damage or nervous system problems (such as restless legs syndrome) | 68 (34.0%) | |
| Seizures | 9 (4.5%) | |
| Skin infection | 20 (10.0%) | |
| Stroke | 5 (2.5%) | |
| Swelling or edema | 97 (48.5%) | |
| None of the above | 5 (2.5%) | |
| Has a doctor or other health care professional ever told you that you have secondary hyperparathyroidism (SHPT)?a | Yes | 49 (24.5%) |
| No | 104 (52.0%) | |
| Don’t know / not sure | 47 (23.5%) | |
| If all SHPT medicines worked equally well, how would you choose to receive the medicine? | Pill once a day | 30 (15.0%) |
| Pill once a week | 19 (9.5%) | |
| Given through dialysis line during your regular dialysis treatment | 151 (75.5%) | |
Percentages do not include missing responses in the denominator
PTH parathyroid hormone, SD standard deviation, SHPT secondary hyperparathyroidism
aRespondents were not required to have SHPT to complete the survey
Fig. 3Secondary hyperparathyroidism treatment preference weights. SHPT = secondary hyperparathyroidism. The vertical bars surrounding each mean preference weight denote the 95% confidence interval about the point estimate. If the confidence intervals do not overlap for pairs of levels in a particular attribute, the parameter estimates are statistically different from each other at the 5% level of significance
Preference shares
| Surgery or Medication | Chance That the Treatment Keeps Your Labs Within Their Recommended Ranges | Chance that the Treatment Relieves Your HPT Symptoms | Risk of Low Blood Calcium | Nausea and Vomiting | How You Receive the Medicine | Out-of-Pocket Cost of Treatment per Month | Predicted Preference Share | |
|---|---|---|---|---|---|---|---|---|
| Scenario 1: two medications, $15 out-of-pocket cost | ||||||||
| Treatment profile 1 | Medication | 60 out of 100 (60%) | 35 out of 100 (35%) | 2 out of 100 (2%) | Mild | Given through dialysis line during your regular dialysis treatment | $15 | 60.8% (54.6%–67.0%) |
| Treatment profile 2 | Medication | 60 out of 100 (60%) | 35 out of 100 (35%) | 2 out of 100 (2%) | Mild | Pill once a day | $15 | 39.2% (33.0%–45.4%) |
| Scenario 2: two medications and surgery, $15 out-of-pocket cost of medications | ||||||||
| Treatment profile 1 | Medication | 60 out of 100 (60%) | 35 out of 100 (35%) | 2 out of 100 (2%) | Mild | Given through dialysis line during your regular dialysis treatment | $15 | 60.0% (53.8%–66.2%) |
| Treatment profile 2 | Medication | 60 out of 100 (60%) | 35 out of 100 (35%) | 2 out of 100 (2%) | Mild | Pill once a day | $15 | 38.7% (32.6%–44.8%) |
| Treatment profile 3 | Surgery | 60 out of 100 (60%) | 35 out of 100 (35%) | 2 out of 100 (2%) | [Not applicable] | [Not applicable] | $0 (surgery is defined as a one-time cost of $500, which is reflected in the preference weight for surgery) | 1.3% (0.1%–2.5%) |
CI confidence interval, SHPT secondary hyperparathyroidism
Fig. 4Best-worst scaling relative bother estimates (N = 200). The = symbol between two weights indicates that those two weights are not statistically significantly different from each other (P < 0.05), and the ≠ symbol indicates that those two weights are statistically significantly different from each other. For example, 1 out of 100 (1%) risk of dying because of the operation is statistically significantly different from 1 out of 100 (1%) risk of damage to the nerves that control the vocal cords because of the operation, whereas 1 out of 100 (1%) risk of damage to the nerves that control the vocal cords because of the operation is not statistically significantly different from 2 out of 100 (2%) risk of having a seizure or convulsions. The bars surrounding each mean importance weight denote the 95% confidence interval about the point estimate