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Sunday, December 25, 2011

QALY

The Impersonalisation of the Sick

Let's assume that Patient x has a serious, life-threatening condition.

• If he continues receiving standard treatment he will live for 1 year and his quality of life will be 0.4 (0 or below = worst possible health, 1= best possible health)

• If he receives the new drug he will live for 1 year 3 months (1.25 years), with a quality of life of 0.6.

The new treatment is compared with standard care in terms of the QALYs gained:

• Standard treatment: 1 (year’s extra life) x 0.4 = 0.4 QALY

• New treatment: 1.25 (1 year, 3 months extra life) x 0.6 = 0.75 QALY

Therefore, the new treatment leads to 0.35 additional QALYs (that is: 0.75 -0.4 QALY = 0.35 QALYs).

• The cost of the new drug is assumed to be £10,000, standard treatment costs £3000.

The difference in treatment costs (£7000) is divided by the QALYs gained (0.35) to calculate the cost per QALY. So the new treatment would cost £20,000 per QALY.

The new treatment is compared with standard care in terms of the QALYs gained:

• Standard treatment: 1 (year’s extra life) x 0.4 = 0.4 QALY

• New treatment: 1.25 (1 year, 3 months extra life) x 0.6 = 0.75 QALY

Therefore, the new treatment leads to 0.35 additional QALYs (that is: 0.75 -0.4 QALY = 0.35 QALYs).

• The cost of the new drug is assumed to be £10,000, standard treatment costs £3000.

The difference in treatment costs (£7000) is divided by the QALYs gained (0.35) to calculate the cost per QALY. So the new treatment would cost £20,000 per QALY."

Got that? If you need a drug that costs over more than 43,000 dollars, you are SOOL. If you need brain surgery and it is over 43,000 dollars, you are SOOL.

Your life...in pounds and pence.