Ari Friedman

@AriBFriedman

MD, PhD. , formerly . Tweeting on health policy/econ, emergency med, and //. RT not endorsement. Views my own.

Boston, MA
abfriedman.com
Joined September 2013
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  1. Retweeted
    Jul 31

    MN '18 premium rates released. Reinsurance helps A LOT! PreferredOne back in. 1332 key

    2 replies 64 retweets 53 likes
  2. Jul 31

    Home AEDs now below $800. Cram et al.'s 2005 estimate of $88k/QALY based on $2k/device.

    2 likes
  3. Retweeted
    Jul 30

    "Evidence-based medicine in the era of social media" --

    12 retweets 12 likes
  4. Retweeted
    Jul 29

    Two reminders: Not paying CSRs costs more than paying them. A bill taking this out of the president's control has a score of $0 from CBO.

    If a new HealthCare Bill is not approved quickly, BAILOUTS for Insurance Companies and BAILOUTS for Members of Congress will end very soon!
    12 replies 534 retweets 741 likes
  5. Retweeted
    Jul 29

    Statistical Rumsfeld: "Known Knowns"=data; "Known Unknowns"=parameters; "Unknown Knowns"=uncertainties; "Unknown Unknowns"=model misspec.

    7 replies 381 retweets 784 likes
  6. Retweeted
    Jul 29

    The ACS is so good. Large samples, good geographic coverage, some retrospective questions (state of birth), open up a lot of possibilities.

    The ACS has become the most widely used U.S. survey, by a wide margin.
    6 retweets 19 likes
  7. Retweeted
    Jul 28
    Replying to

    Slightly more nuanced, but practically yes. Though "per session" is more "per fiscal year." Per CBPP...

    1 retweet 1 like
  8. Retweeted
    Jul 28

    Now is the time to shore up the private non group market; here are four doable, low-cost policy steps to that end...

    22 retweets 17 likes
  9. Retweeted
    Jul 26

    We updated the ED algorithm w/ new ICD9/ICD10 codes so more visits are classifiable:

    2 replies 5 retweets 8 likes
  10. Retweeted
    Jul 27

    How can eliminating mandate reduce coverage by 15M when 10M in HIX? Mandate induces coverage in ESI and Medicaid, not just HIX. Thanks CBO!

    10 retweets 16 likes
  11. Retweeted
    Jul 27

    A visual proof that: (1/2)² + (1/2)⁴ + ... + (1/2)²ⁿ = 1/3

    24 replies 900 retweets 1,673 likes
  12. Retweeted
    Jul 27

    Obamacare has helped Native communities access health insurance.

    Nationally, the Native American uninsured rate has dropped nearly 40% since was introduced in 2010:
    1 reply 13 retweets 17 likes
  13. Retweeted
    Jul 26
    Replying to

    tidypvals is a brilliant package! It's worth noting the datasets (except Brodeur for economics) include "less/greater than", e.g. p < .05

    1 reply 3 retweets 10 likes
  14. Retweeted
    Jul 26

    This is a joyplot of the distribution of 2.5 million p-values from 25 scientific fields from the tidypvals package:

    33 replies 350 retweets 538 likes
  15. Retweeted
    Jul 27

    Interesting new paper on Diff-in-Diff & pre‐treatment outcomes.

    4 retweets 9 likes
  16. Retweeted
    Jul 26

    ER docs tired of ROS? Think EM billing codes need improvement? is seeking comment on how to improve (p33978)

    1 reply 12 retweets 11 likes
  17. Retweeted
    Jul 26

    Factors a/w ED MD malpractice claims: yrs in practice & visit volume only signif factors

    Our latest paper in on factors associated with emergency physician malpractice claims
    8 retweets 10 likes
  18. Retweeted
    Jul 26

    Autocratic Distraction: "Who do my supporters hate? Who can I get them to hate? How can I make the hated targets angry so they lash out?"

    336 replies 8,948 retweets 17,662 likes
  19. Retweeted
    Jul 25

    Changes in a pill's color/shape lead to large drops in med adherence. Effects larger than impact of higher copays!

    5 replies 38 retweets 48 likes
  20. Retweeted
    Jul 25

    Critical work as HDHPs proliferate: "We find no evidence of consumers learning to price shop after two years in high-deductible coverage."

    The Impact of Cost-Sharing on Health Care Prices, Quantities, and Spending Dynamics…relevant to HDHPs/Transparency
    5 retweets 3 likes

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