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