16 de setembre 2016

The costs of inaccuracy

The Lifetime Economic Burden of Inaccurate HER2 Testing: Estimating the Costs of False-Positive and False-Negative HER2 Test Results in US Patients with Early-Stage Breast Cancer

Diagnostic tests show different levels of false positive and negatives in the results. The impact of such unwanted results by physicians finally have an impact on health and quality of life of patients. You can check what does this means for HER-2 test in breast cancer in US in this article.

Patients with breast cancer whose tumors test positive for human epidermal growth factor receptor 2 (HER2) are treated with HER2-targeted therapies such as trastuzumab, but limitations with HER2 testing may lead to false-positive (FP) or false-negative (FN) results.

Among 226,870 women diagnosed with EBC in 2012, 3.12% (n = 7,070) and 2.18% (n = 4,955) were estimated to have had FP and FN test results, respectively. Approximately 8400 QALYs (discounted, lifetime) were lost among women not receiving trastuzumab because of FN results. The estimated incremental per-patient lifetime burden of FP or FN results was $58,900 and $116,000, respectively. The implied incremental losses to society were $417 million and $575 million, respectively.
That's a lot. Something should be done to improve accuracy in such tests. It was already known partially. Its cost-effectiveness is sensitive to HER-2 test properties.
However, as Kassirer said:

Absolute certainty in diagnosis is unattainable, no matter how much information we gather, how many observations we make, or how many tests we perform. A diagnosis is a hypothesis about the nature of a patient's illness, one that is derived from observations by the use of inference. Our task is not to attain certainty, but rather to reduce the level of diagnostic uncertainty enough to make optimal therapeutic decisions.
That's it.

Rafel Joan

12 de setembre 2016

The US political gridlock on cost-effectiveness

A Framework for Payer Assessment of the Value of New Technologies:A US Approach

USA is well known for its prominent interest in avoiding cost-effectiveness as we know in certain european countries. They talk about comparative effectiveness research, because it fits with their current priorities: What works best? and let's the cost for another day. Forget trade-offs.
If you want to know the recent stuff on the topic, have a look at this article. You'll notice three steps: clinical care value, managing affordability and health system value. It makes sense as a first step. In our country we don't have such official estimates. The next step should be to introduce cost and equity considerations.

Xavier Rodés

07 de setembre 2016

A healthcare expenditure mess, and nobody cares about it

Let's imagine an alleged State. All its citizens pay taxes under the same Tax Code. Health Benefits are the same under the Health Act. And spending on health care according to geography, can reach 52% more in Basque country compared to Andalusia. This is not new. Many decades having the same figure and nobody cares about it.

This is an easy table to understand health policy making in a failed state. Catalonia spends 4,7% of GDP on health, other sources say 5,5%. Anyway, you'll not find an OECD country with similar figures. After a decade we are spending the same amount per citizen than in 2006, 1.120 €. I will not add anything to this mess. There is only an increasing need to disconnect. Is there any MP in the room?
 
PS. I'm not arguing that every country has to spend the same, I'm just saying that it is not legally possible to deliver the same benefits with such different budgets. Therefore we are unequal before law. This is the usual legal uncertainty of a failed state.


06 de setembre 2016

Physicians' standards of conduct

Professing the Values of MedicineThe Modernized AMA Code of Medical Ethics

JAMA has decided to start JAMA Professionalism, a new department.
The goal of the articles in this section is to help physicians fulfill required competencies on this topic. According to the American Board of Medical Specialties definition, professionalism is “…a commitment to carrying out professional responsibilities, adherence to ethical principles and sensitivity to diverse patient populations.” Taking responsibility for executing professional responsibility seems intuitive enough. But what does it mean to adhere to ethical principles? How are the ethical principles defined? 
Good questions. And the answers for US physicians are in the new AMA Code of Medical Ethics.
A multi-year effort to modernise that has provided an interesting outcome. You can check for example, regarding prioritisation of resources, what should be done? in chapter 11 you'll find the answers. A good suggestion for our physicians' associations and their outdated codes.
 

02 de setembre 2016

Predictive modeling in health care (2)

Analysing the Costs of Integrated Care: A Case on Model Selection for Chronic Care Purposes

How do you want to manage, with a rearview mirror or just looking forward? Big data allows to look forward with better precision. The uncertainty about the disease and about the cost of care is large when you enter in hospital from an emergency department. But, after the diagnosis (morbidity), could we estimate how much could cost an episode?. If so, then we could compare the expected cost and the observed cost on a continous process.
Right now this is possible. Check this article that we have just published and you'll understand that costs of different services according to morbidity can be reckoned and introduced in health management. This analysis goes beyong our former article, much more general. So, what are we waiting for? Big data is knocking at the door of health care management, predictive modeling is the tool.


Amazing concert by Caravan Palace in Sant Feliu de Guixols three weeks ago.

01 d’agost 2016

Summer readings

FT published its list some weeks ago. Have a quick look at it, you'll find worthy material. Two selected picks:




and my recommendation:

Have a good summer!


28 de juliol 2016

The dark side, the conflict option

The dark side of the force

While reading today FM Alvaro op-ed on current war: Questions in a war, I thought that was good to remember Jack Hirshleifer and specifically to retrieve an excellent speech he gave in 1993: The dark side of the force. When I read it for the first time I got impressed and I've remembered forever.
Therefore, my suggestion is to read the whole speech. If you are an economist, you'll be shaken by his views. Selected statements:
“Our profession has on the whole taken not too harsh but rather too benign a view of the human enterprise. Recognizing the force of self-interest, the mainline Marshallian tradition has nevertheless almost entirely overlooked what I will call the dark side of the force—to wit, crime, war, and politics."
“cooperation, with a few obvious exceptions, occurs only in the shadow of conflict.”  “when people cooperate, it is generally a conspiracy for aggression against others (or, at least, is a response to such aggression).”
"Pareto is saying, sure, you can produce goods for the purpose of mutually beneficial exchange with  other parties—OK, that's Marshall's "ordinary business." But there's another way to get rich: you can  grab goods that someone else has produced. Appropriating, grabbing, confiscating what you want— and, on the flip side, defending, protecting, sequestering what you already have—that's economic  activity too. Take television. Cops chase robbers, victims are stalked by hitmen (or should I say  hitpersons?), posses cut off rustlers at the pass, plaintiffs sue defendants, exorcists cast spells against  vampires. What is all this but muscular economics? Robbers, rustlers, hitpersons, litigants—they're all trying to make a living. Even vampires are making economic choices: sucking blood is presumably the cost-effective way of meeting their unusual nutritional needs.”
“This is Machiavelli's version of the golden rule: he who gets to rule, will get the gold. Human history is a record of the tension between the way of Niccolo Machiavelli and what might be called the way of Ronald Coase. According to Coase's Theorem, people will never pass up an opportunity to cooperate by means of mutually advantageous exchange. What might be called Machiavelli’s Theorem states that no one will ever pass up an opportunity to gain a one-sided advantage by exploiting another party.
Machiavelli's Theorem standing alone is only a partial truth, but so is Coase's Theorem standing alone. Our textbooks need to deal with both modes of economic activity. They should be saying that decision-makers will strike an optimal balance between the way of Coase and the way of Machiavelli—between the way of production combined with mutually advantageous exchange, and the dark-side way of confiscation, exploitation, and conflict.”
"Thus, in recognizing the role of conflict we must not go overboard in the other direction. All aspects of human life are responses not to conflict alone, but to the interaction of the two great life-strategy  options: on the one hand production and exchange, on the other hand appropriation and defense against  appropriation. Economics has done a great job in dealing with the way of Ronald Coase; what we need  now is an equally subtle and structured analysis of the dark side: the way of Niccolo Machiavelli.”
The balance between these modes of economic activity--the one leading to greater aggregate wealth, and the other to conflict over who gets the wealth--provides the main story line of human history.
This speech and several articles on conflict were published in a book  "The Dark Side of the Force: Economic Foundations of Conflict Theory".
Hirshleifer analytic frame may be applied to health economics as well, specifically to such cases where fraud, inappropriateness, and false advertising are part of the dark force.




PS. Long time ago I quoted in a post the Schelling book on the same topic.