BOOKS OF RtfiDIfGS - PAHO/WHO

250 -
Table 4. Primary Cre Ulization Rates by
Patient Age Group
Visu/penon/
Age grup r«
(4) ((.)
Under 18 229
O18r 2
Over 64 4D0
· ii i Bi i~~~~~~~~~~~~~~~~~~~
The mean number of restricted activity or bcd days for the popu.
lation of the service area lb ic dewmined as the population.weighbted
average of restricted activity daya over the income groups. The mean
number of retriced activity days by income group is estimated from
data ia ref. $1 and 32 snd prented in Table 5.
i T eThee calculatioau for age d family income are used to deter
mine the poateial demanud in numbers of the ideal population in a
given service ar by the folowing equation:
ve, = N, X (1/o) x (x/Bo)
where Yot is tb potencial demand in unitu of the ideal population for
rvce area j and NI b the ictual population in wervice area j.
5. Dc:..íin: he; Exprcued Dcmund. Al of the potential demaid
bowever, will not be expre~ed as visiu to physiciau. Facton
that may impede some people frn making visita to physicians must
be tuar fito -aaat [18). Two such factor georaphic acceibility
and econoaic kfalbilty, are ~ite into accIunt in tdh model and are
auumed to act depently of one another. Thub the expresed
deAnad iD a serviC are, VY, is obtained by multiplying the potential
dena i that & ares, Y, by tbe a:eibiliUty and economic feasibility
factor. tltarea a com caputed in seps 2 and 3:
Y, = ej, x FEAS, X ACCESS,
Tibe 5. admad ~ c d ky Dhys
of Pathemtn la DI t ame Cm p
Eniad a~ed
Incrue aouy mvty.dap
Under powny kwlt a0.
Owr poway idl aid
¡e a $15000D 14.
15G000 ad over llJ!
* rjasdd frk de b a Ddm.b* D~ I31) ud C.^u o1
to U.u: ¡1f0 p1.
t *u. Cn_ .f oL.U~: 19f0 (o .
NEFD FOR
PRIMARY CARE
PHYSICIANS
FALL
197'