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Indices
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d
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Diagnosis group
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f
|
Facility
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p
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Zip code area
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q
|
Zip code area
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Parameters
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a
d
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The slope of the (linear) volume-outcome relationship of diagnosis group d
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b
d
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The constant term of the (linear) volume-outcome relationship of diagnosis group d
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EQ
|
Euros per QALY
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ET
|
Travel expenses per time unit
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M
|
Big number [1,000,000]
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maxt
d
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The maximum acceptable travel time for diagnosis group d
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minu
f
|
Minimum utilization per facility f
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NP
d
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The number of patients per diagnosis group d
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The number of patients per diagnosis group d and zip code p
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NV
d
|
The total number of visits per patient having diagnosis d
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TT
p,q
|
The driving time from zip code p to zip code q
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U
fd
|
The amount of resources each patient within diagnosis group d makes use of facility f
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Dependent variables
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Quality
d
|
Total quality achieved for diagnosis group d [euros]
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Travel
d
|
Total travel costs made for diagnosis group d [euros]
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NL
d
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The number of locations treating diagnosis group d
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Decision variables
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X
p
|
Whether a health care location is established in zip code p
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Z
q,d
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Whether diagnosis group d is treated at potential hospital location with zip code q
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Y
p,q,d
|
Whether for diagnosis group d patients from zip code p are assigned to potential hospital location with zip code q
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