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ForumsPublic SquareWELCOME: Introduce yourself & read the community guidelines Page 3

WELCOME: Introduce yourself & read the community guidelines

Admin Mon, Feb 19, 2024 at 5:20 PM 185 replies 24,631 viewsPage 3 of 20
nick_newbie
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Feb 22, 2024 at 2:51 PM#11
traveltech_sara said:
The gap between trial results and real-world results is consistent and it is not fraud.

This answered a question I did not know how to ask.

17 15robert_kc, dan_philly, MeganSA_TX and 14 others
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paige_pharma
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Feb 24, 2024 at 6:54 PM#12

Clinical perspective, offered as context rather than as advice.

Admin said:
...regarding the trial evidence...

I think this is an underappreciated point. To expand on it with some data:

A recent meta-analysis of 22 RCTs (n=18,900) found that the trial evidence was associated with a consistent effect size across diverse patient populations[1].

The NNT was 20, which is comparable to antihypertensives for stroke reduction. That's a strong clinical argument for this approach.

18 16Dr.SurgeonPGH, rachel_ABQ, traveltech_sara and 15 others
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JessicaH_TX
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Feb 26, 2024 at 10:56 PM#13
Dr.MetabolicMD said:
Relative and absolute effects need reading together.

Forest plot interpretation for the the trial evidence meta-analysis: when reading the pooled estimate, pay attention to:

  1. Point estimate (HR/RR/OR) — center of the diamond
  2. Confidence interval width — precision of the estimate
  3. I² statistic — heterogeneity across studies
  4. Individual study weights — are results driven by one large trial?
  5. Prediction interval — range of plausible true effects in future settings

The the trial evidence meta-analysis shows a pooled RR of 0.80 (95% CI 0.67-0.90), I²=38%. This is a robust and consistent effect.

19 17kim_atl_prep, sarah_TO, wendy_avl and 16 others
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labquiet_amy
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Mar 2024
Cambridge, MA
Feb 29, 2024 at 2:56 AM#14
Admin said:
WELCOME: Introduce yourself & read the community guidelines Public Square is a small room with a long memory.

Propensity score matching studies and the trial evidence: when RCTs aren't available for a specific question, propensity score-matched observational studies can provide useful evidence.

A recent PSM study of 12,000 GLP-1 users vs matched controls showed reduced MI incidence (HR 0.78) over 3 years of follow-up[1].

These results complement the RCT data and suggest the benefits translate to real-world populations.

References:
[1] Registry-based cohort study, pre-print 2024.
20 18bri_stats, pete_manc_UK, anna.melb_AU and 17 others
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mike_mod
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Mar 2, 2024 at 6:56 AM#15

Moderator note: reminder that nothing in this thread is medical advice, and that clinical claims need a source. Carry on.

Last edited: Mar 2, 2024 at 8:56 AM
21 19PurityPaulOR, MaxMetOK, MounjBrad and 18 others
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