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Table 4 Internal consistency reliability; distribution of scales, items, and summary ethics score; and construct validity scores

From: Development of a Patient Reported Measure of Experimental Transplants with HIV and Ethics in the United States (PROMETHEUS)

  Cronbach’s Alpha mean SD Median IQR Range
A. Emotions (a1-a8) 0.9357 13.5 6.0 12.5 8–19.5 8–26
B. Trust (b1-b8) 0.8889 17.4 6.6 17 12.5–23 8–30
C. Decision (c1-c3) 0.8432 4.8 1.9 4.5 3–6 3–10
E. Satisfaction (e1-e5) 0.9530 7.9 4.7 6.5 5–9 5–25
D. Transplant (d1-d5)a 0.3834      
 Transplant_d2 1.55 0.6 1.5 1–2 1–3
 Transplant_d4 2.55 1.3 3 1–3 1–5
 Transplant_d5 2.35 1.0 2 1.5–3 1–4
Summary ethics scoreb 0.85 1.1 0 0–2 0–3
PCSc 45.6 10.8 43.4 39.1–53.8 14.3–57.2
MCSc 55.1 9.0 56.7 53.2–59.3 28.1–71.3
  1. aFollowing an initial analysis, two items were removed from the initial transplant subscale and the remaining items analyzed as individual items.
  2. bThe summary ethics score was developed from Domain B, C, and E. Participants scored in the upper quartile got 1 point for each domain. The sum of the points from Domain B, C, and E consisted of the overall score.
  3. cPCS and MCS scores are the physical and mental component summary scores of the KDQOL-36TM [25]. Standardized combined scores for the United States population were used. N = 19, 1 participant missed the answer of question 3c, 6, 7, 8, 9a-i, and 10 was excluded from this analysis
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