Abstract
Background:
Standard
gamble (SG) directly measures patients’ valuation of their health
state. We compare in-hospital and day-90 SG utilities (SGU) among
intracerebral hemorrhage patients and report a 3-way association between
SGU, EuroQoL-5 dimension, and modified Rankin Scale at day 90.
Methods and Results:
Patients
with intracerebral hemorrhage underwent in-hospital and day-90
assessments for the modified Rankin Scale, EuroQoL-5 dimension, and SG.
SG provides patients a choice between their current health state and a
hypothetical treatment with varying chances of either perfect health or a
painless death. Higher SGU (scale, 0–1) indicates lower risk tolerance
and thus higher valuation of the current health state. Logistic
regression was used to estimate the likelihood of low SGU (≤0.6), and
Wilcoxon paired signed-rank test compared in-hospital and day-90 SGU.
In-hospital and day-90 SG was obtained from 381 and 280 patients,
respectively, including 236 paired observations. Median (interquartile
range) in-hospital and day-90 SGUs were 0.85 (0.40–0.98) and 0.98
(0.75–1.00; P<0.001). In-hospital SGUs were lower with advancing age (P=0.007), higher National Institutes of Health Stroke Scale, and intracerebral hemorrhage scores (P<0.001).
Proxy-based assessments resulted in lower SGUs; median difference (95%
CI), −0.2 (−0.33 to −0.07). After adjustment, higher National Institutes
of Health Stroke Scale and proxy assessments were independently
associated with lower SGU, along with an effect modification of age by
race. Day-90 SGU and modified Rankin Scale were significantly
correlated; however, SGUs were higher than the EuroQoL-5 dimension
utilities at higher modified Rankin Scale levels.
Conclusions:
Divergence
between directly (SGU) and indirectly (EuroQoL-5 dimension) assessed
utilities at high levels of functional disability warrant careful
prognostication of intracerebral hemorrhage outcomes and should be
considered in designing early end-of-life care discussions with families
and patients.
Footnotes
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