Posts in: science

What I believe that most people probably don’t (no data behind this, just the armchair)

The world in general, and the US in particular, is spending too much on goal-directed, targeted biomedical research while undervaluing both applied and theoretical physics. Picture Leonardo da Vinci drawing helicopters: that’s the modern-day cancer researcher. The universal cure for cancer — and there should be one, if humanity survives long enough to create it — will not come from an NIH grant. If grants are involved at all, it will be something initially funded by the National Science Foundation. The current system of funding (government, non-profit, biotech, you name it) is broken, and if you account for the opportunity cost it is a complete disaster. Each of these statements deserves at least a paragraph, but I am saving my carpal tunnels for a manuscript, an LOI, and a couple of protocols (oh, the irony).

In the meantime, a few things physician-scientists should do for the overall good:

  • find causes and create better prevention strategies, because a look at the SEER database will tell you that it’s not just bad luck;
  • eliminate barriers for administration of known curative therapies world-wide (do we really want to leave this to politicians and economists?);
  • ensure rapid and honest evaluation of the many new treatments, procedures, and diagnostic/prognostic methods coming out of the biomedical behemoth.

How beneficial any of this would be for one’s career is a different question altogether, but let’s not get into incentives because RSI. I am also very open to opposing opinions, since my being wrong would make my life easier.


Storytellers

Last week I shared a brief reflection on a tiny aspect of my commute. Please check it out it if you haven’t already, it is a quick read.

Wasn’t that nice? It started by introducing some old concepts in a new light—you knew about trains before, and maybe even knew there was a MARC Penn that line goes from Baltimore to DC, but probably didn’t know the specific trains and their timetables. Then it gave you a coherent explanation of a phenomenon you hadn’t known about before. This first caused slight, but not unpleasant, cognitive strain while you were figuring out what I writing about, followed by the small pleasure of an ah-hah moment once the pieces clicked.

It was a brain massage, if you will. It was also complete bull.

Not that anything I wrote was wrong, as far as I know, but I didn’t give many arguments for it being right, either. There were no ridership statistics or arrival times to back up my claims. And even if there were—I didn’t give any alternative hypotheses to explain the situation, nor reasons why those would be less likely than my own explanation. When you think about it, it was more of a brain Twinkie than a massage—all empty calories, with a fleeting feeling of fullness.

Welcome to 99.99999% of the written word, and to anything ever spoken out loud.

We like stories. They need to make a threshold amount of sense (this is why societies universally ostracize schizophrenics). They should contain an element of surprise (it is not that the 7:07 train would come later than the 7:23—twists like that do not surprise anyone any more—it is that it comes in much earlier because people think it wouldn’t). And they get bonus points if—as my last parenthetical implied—they paint the others as stupid or incompetent. There are many more checkboxes; more of them checked, the better the story.

Most professions are based on storytelling. Doctors tell different stories to their patients, each other, and themselves—as do most other scientists, to a different degree. Lawyers tell stories to their clients to make them believe they will craft good ones for the judge, jury, and the opposing side. Ask a marketer what makes a good commercial (spoiler: story).

Being a coal miner doesn’t involve telling stories. No one wants to be a coal miner.

Our minds prefer a good story over a true one, and will have us believe it more, too. However, the more boxes you see checked, the more suspicious you should be that someone manipulated the tale to make it more pleasurable, ergo memorable, ergo believable.

(So, if what you’ve just read made sense…)

If you are looking for an objective truth—or getting as close to it as possible—any medium that involves audio/visual queues will be an impediment. Sights and sounds stir up emotions, and emotions prime us to believe or not to believe. Pay attention to the background music in a documentary, or how the desk of that shifty lawyer they’re interviewing is a complete mess.

TV news is, of course, a joke—this is why comedy shows are becoming the most popular delivery form.

Written word has its own way of deceiving—anecdotes, incomplete data, misquotes, lazy references—all to make a better narrative. Just read anything by Malcolm Gladwell. And look at the time it takes to get to the bottom of just one tiny factoid in that story of the iron content in spinach. Finding truth is exhausting and exasperating, and people whose job it is to find it (hello, accountants) are way less fun than those who make stuff up. Mark Twain said it best:

A lie can travel half way around the world while the truth is putting on its shoes.

Misquoted? Most likely. Or is Huff Post wrong? It wouldn’t be the first time.

There is nothing in this post that bigger and better minds than my own haven’t written about already. But that’s a boatload of pages! Not many people have the time, discipline, and interest to read all that—and even if they did, they would keep making the same mistakes over again, as shown in several studies described in those same books (yes, yes, all studies are flawed; one windmill at a time, please). These things are hard-wired, and for a good reason—evolution doesn’t care for objective truths.

Or maybe it does. I don’t know, I’ve just made it up.


Statistics resources for clinicians

Another week, another Quora question.

What is an online resource for learning statistics needed for clinicians explained in a language that could be understood by doctors?

There are many biostatistics courses available on Coursera. Living in Baltimore, I’m biased towards JHU’s offerings. “Case-Based Introduction to Biostatistics” by Dr. Scott Zeger is a good one. If you prefer text to video, here are three good resources:

If I had to pick one, it would be Dr. Brush’s book. He is a cardiologist writing for other physicians in a language they can understand. Also, Richard Lehman recommended it, which is more than good enough for me.


What is the evidence for that?

This has become the mantra of every medical student, intern, and resident wanting to appear smart on rounds and conferences, of every attending intent on shooting down a team member’s suggestion. Five, ten years ago it might have have signaled genuine interest. Now it means, usually, “I don’t know anything about the subject, but I’m still calling you out on (what I think is) your BS. Here, look at me! I am evidence-based!”

No, nobody has posed me that question in quite a while, and I don’t remember ever asking it in any context. Although I understand asking questions means showing interest, I’ve always preferred looking things up myself. This would make me appear either very smart or very dumb, depending on whatever subcontious impression I made on the person in the first few minutes of us meeting. Try to use the halo effect to your advantage. But, honestly, except for a few very well-known examples listed in this excellent post, you can find “evidence” in the medical literature to back up any claim. Off-the-cuff conversations during lectures and rounds are not the best place to dissect them, especially when one side has seniority.


Research during residency

Of the three pillars of medicine, research is the most ellusive. Unless you are in an MD/PhD program—not an option for most Europeans—you will have other priorities in medical school. And unless your residency program has a built-in research year, the way most surgical residencies do, you will either be way too busy in a university or a large community program to do any research, or have plenty of free time in a lower volume community hospital that doesn’t have many research opportunities.

When I interviewed residents-to-be last year, my first thought on seeing a non-PhD applicant having 18 publications on his or her CV wasn’t “Wow, she is a research machine, we gotta have her”, but rather doubt that anyone could be that productive during medical school. More points subtracted for thinking the interviewers would be so gullible.

I graduated six years ago, far enough not to be able to give advice on how to do research as a medical student. The hows and whys are institution-specific, so anything I wrote would have to be in Serbian anyway. Residencies, though, are similar enough to each other that I do have some words of advice for new residents wanting to do Research! in a community hospital, university-affiliated or not.

  • Patient care trumps research. Unless you have already worked as an attending in another country before coming to the US for residency, don’t waltz in to your PDs office on day one asking about research opportunities. Prove yourself on the field first, then six months later, when you’re comfortable managing DVT prophylaxis, septic shock, and what not, start asking questions.

  • Get your own idea? Common wisdom says it is better to come up with your own question and start your own projects, since you will be more invested in the outcome. Well, yes, sort of. Unless it is a quick-and-dirty chart review you can do over a two-week vacation—and even then there are IRB hoops you’d need to jump through to get anything done—you will get your inexperienced self into the murky world of project management. Many brilliant ideas have died on the field of required signatures, ambiguous data points, and impossible-to-coordinate meetings. Which is why this next advice is important.

  • Find good mentors. Surrounding yourself with a few good people is orders of magnitude better than having many good ideas. Research topics come and go, as does our interest in different fields of medicine (yesterday’s apoptosis is today’s epigenetics is tomorrow’s something or other). It is unlikely that the research your started in residency will continue onward into fellowship, but the knowledge, skills, and general wisdom you pick up from your mentors should serve you well into your career. NB: don’t wait for someone to be “assigned” to you—although that’s what many residency programs will do. Seek out people who match your character and who would be able to give you advice in at least three fields: patient care, research methodology, and research topics. This can be one person, or five. And if you find an awesome mentor who just isn’t doing any research right then, you can always write a review.

  • Is it Science! or quality improvement? ACGME is big on Quality! and Patient Safety! this year. Programs take notice. If you can present your interest as a quality improvement project rather than small-s-science, consider doing it. Not only does showing interest in quality improvement look good on a CV, your institution might have special funds for resident QI projects. A dedicated QI mentor is also a good resource, if you want a carreer as a Sith lor—erm, hospital administrator.

Interest in research goes from I just want something on my CV so I could get a fellowship to When I grow up, I’ll have my own lab, but this applies to most people in most circumstances.