Objectives of public healthcare systems
When is a technology cost-effective?
cost-effective when:
∆ ct / ∆Qi < vi
not cost-effective when:
∆ ct / ∆Qi > vi
Why would you not want to reimburse a health technology that IS cost-effective
o Rare disease (small patient group)
o Opportunity costs are too high, it may be more valuable/efficient to allocate resources to a different disease/treatment (better to spend budget differently, also relates to rare disease as an equity consideration)
o Treatment for, for example, toe fungus may be cost effective but has a low societal value or it is so cheap that people can buy it themselves
§ Example: Viagra, very cost effective and great benefits, but from societal perspective it is not that valuable
§ Example: paracetamol
Why would you want to reimburse a health technology that is NOT cost-effective
o Public/political pressure
o Rare diseases – price is very high because it is so rare, but there is no other treatment. Patients cannot pay for treatment themselves as this is too expensive (e.g., rare disease)
o Unmet needs due to the lack of other treatments
o Young patients
The social value of QALY gains (vi) can differ and depend on characteristis of, for example
(schwappach)
The i can depend on characteristics of patients
Characteristics of diseases
Characteristics of intervention
Who are considered more severely ill is a normative question. There are different theories that provide different answers. Two important ‘severity approaches’ are:
severity of illness consists off
prospective health
= how much health someone has left in the future
patients who have relatively less (or very little) prospective health are more worse off; the smaller the prospective health, the stronger the urgency to help these patients
absolute shortfall
= how much health people lose as a consequence of disease if they do not have acces to treatment
–> disease related health loss (wihtout the new treatment)
(e.g. 20 years * 0.5 QOL point + 40 years * 1 QOL = 50 QALYs)
proportional shortfall meaning
= amount of health they lose relative to the amount of health they would have had if they had not fallen ill
proportional shortfall formula
disease related health loss (without the new treatment) / remaining health expectation in absence of the disease
example:
- Would have lived until age 80 years with QOL of 1 point
- Fell ill at age 20 years, QOL dropped from 1 to 0.5 and LE dropped from 80 to 40 years
((20 years * 0.5 QOL point + 40 years * 1 QOL point) / (60 years * 1 QOL point)) = 50/60 = 0.83
note: absolute shortfall is equal to the nominator in the proportional shortfall equation
severity of illness
= focusses on the amount of health someone will lose in the future due to illness
Fair innings
focusses on lifetime health and consist of two arguments (not only focus on amount of health already lost)
1. equal innings argument
2. sufficient innings argument
= people who have not yet had their fair inning (i.e., a ‘normal’ life-span of 70 QALYs in 1997) are worse off than those who have had their fair innings
–> dit houdt in dat iedereen een ‘equal’ recht heeft op hetzelfde aantal QALYs. Younger pateints are further away from 70 QALYs than older patients, so they are worse off when falling ill
= people who have had their fair innings are better of than those who have not (yet) had their fair innings; the further away from this fair innings, the worse they are considered to be
–> deze bouwt voort op het eerste argument: als iemand van de 70 QALYs bv heeft gehaald, dan wordt die persoon minder belangrijk voor gezondheidswinst en krijgen zij geen prioriteit voor behandeling
What is considered to be a fair QALY expectancy?
There is no consensus about the fair innings, it is an ethical discussion. People born in 2000 had a higher fair innings, than people born in 1980, is this a fair difference? Between generation you get differences, because you use the QALY expectancy at birth as fair innings.
fair innings example patient
Fair innings (at the moment of falling ill/need for treatment) = 20 years * 1 QOL point – 6.7 QALYs = 13.3 QALYs (out of 80 QALYs that may be considered fair)
Patients who are further removed from their fair innings are more worse off
Severity of illness aim
= reduce inequalities in terms of current and future/prospective health in society
severity of illness standpoint
= the value of health gains is greater (weight >1) when gained by patients with lower levels of current and future prospective health without the new treatment
severity of illness disregards
= patients’ past health and age
fair innings aim
= reduce inequalities in terms of lifetime health in society