The name is absent



Nutrition and Coronary Heart Disease

TABLE 9 COST-EFFECTIVENESS RATIOS

INTERVENTION

GP

COMMUNITY

MASS
MEDIA

HOSPITAL

Population

300,000

253,000

400,000

4~800~

Total Cost (pa)

5,936,000

1,451,000

500,000

468,000

Reduction in Risk (approx)

14%

6%

4%

25%

Years OfEffectiveness

5.5

3.5

2

3.5

Deaths Prevented*

135

48

22

20

CEA Ratio

$43,873

_________$30,151

$22,727

$23,054

*Note rounding

The CEA ratio should be interpreted as the cost per CHD deaths prevented. That is,
given the costs, effectiveness, length of intervention and existing CHD death rates, the
CEA ratio provides a dollar measurement for every CHD death prevented. The ranking
of interventions, in order of most favourable to least favourable CEA ratio, are (1)
Mass
Media,
(2) HospitalZRehab, (3) Community and (4) GP.

Sensitivity Analysis - Length of effectiveness

A sensitivity analysis is a crucial part of any cost-effectiveness exercise. This part of the
analysis aims to alter some of the underlying assumptions made and test the robustness
of the results. As highlighted above, one of the main assumptions in this analysis is the
length of effectiveness of any intervention.

The following table shows the CEA ratio for each intervention according to the
minimum, maximum and mid point years of effectiveness (see table 4).

TABLE 10: SENSITIVITY ANALYSIS: CEA RATIOS ACCORDING TO YEARS OF

EFFECTIVENESS

INTERVENTION

CEA RATIO WITH       CEA RATIO CEA RATIO WITH

MINIMUM            AT      MAXIMUM

EFFECTIVENESS        MID-POINT EFFECTIVENESS

GP Based
Community
Mass Media
HospitalZRehab

$60,448                $43,873              $34,541

$53,346                $30,151              $21,338

$45,455                $22,727              $15,152

______________$40,345_________________$23,054______________$16,138

Table 10 shows how the CEA ratio ranking changes if the years of effectiveness are
varied.

CHERE Project Report 11- November 1999

30




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