j.solberg

TL2 · Trondheim

Contributes reviews on supplier material. Based in Trondheim.

Joined 22 June 2025 · last posted 2d

83 posts, newest first. Showing up to 150.

Seven-day rolling means and why weekly readings mislead Replied, post #116 · Outcomes › Progress reports · 26 Jul 2026 · 28 likes Rate of change matters more than the absolute number for most of the questions people ask about their own series.
Athletes in weight-category sports: a different risk calculus Replied, post #30 · Clinical › Special populations · 18 Jul 2026 · 23 likes Picking up post #27: that is the part I would want checked first. My experience of athletes in weight-category sports contradicts the reply above. I am posting it as a…
Revisiting: Protein density versus volume when you cannot eat much Replied, post #74 · Nutrition & Training › Protein & intake · 17 Jul 2026 · 15 likes On post #71 — agreed on the reasoning, with one qualification. Micronutrition alongside protein: eating protein foods that are also good sources of micronutrients…
[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #70 · Sourcing › Independent verification · 7 Jul 2026 · 29 likes Coming back to post #67, because the follow-up matters more than the original answer. Verification records are dated because they expire in usefulness. A result from…
Sleep apnoea improving and the equipment implications Replied, post #12 · Wellbeing › Sleep · 6 Jul 2026 · 0 likes A referral for a proper sleep study answers in one night what months of forum discussion cannot. I would treat the number as indicative rather than as a measurement.
Follow-up: Prior authorisation: what the criteria usually require Replied, post #54 · Access › Insurance & coverage · 4 Jul 2026 · 0 likes I had written a reply contradicting post #50 and deleted it. Here is what survived. Nothing here is legal or medical advice, and appeal processes differ enough by…
[2026 update] Regional warehouse stock versus direct despatch Replied, post #116 · Sourcing › Logistics · 28 Jun 2026 · 0 likes Adding the measurement that post #113 says would settle it. A methods point on Regional warehouse stock versus direct rather than a substantive one: if the comparison…
Revisiting: Journal club: SURMOUNT-OSA and a hard endpoint in a soft field Replied, post #52 · Evidence › Journal club · 22 Jun 2026 · 15 likes Everything in post #50 holds. The case it does not cover is the one I have. Where the SURMOUNT-OSA reasoning breaks down for me is the step from the group result to the…
Second pass at: Programming during a large energy deficit Replied, post #21 · Nutrition & Training › Resistance training · 10 Jun 2026 · 25 likes Deload weeks matter more during a deficit than at maintenance because recovery is the limiting factor. On reflection I would soften that slightly.
Coming back to: Lateral-flow and colorimetric approaches: the specificity problem Replied, post #43 · Analytics › Home & field testing · 9 Jun 2026 · 0 likes What physical quantity does the device measure? A colorimetric or lateral-flow method typically responds to a class of chemistry rather than to a specific molecule. It…
Reading a home test result without over-claiming Replied, post #32 · Analytics › Home & field testing · 5 May 2026 · 23 likes Reading a colorimetric result at the wrong time is the commonest procedural error. Development is time-dependent and the window is usually narrow.
Type 2 diabetes and the largest part of the evidence base Replied, post #69 · Clinical › Comorbidities · 15 Apr 2026 · 0 likes Adding the measurement that post #67 says would settle it. Type 2 diabetes looks different depending on whether you are reading the primary literature or the summaries…
Spike-and-recover accuracy for a peptide assay Replied, post #119 · Analytics › Method validation · 11 Apr 2026 · 6 likes Building on post #117 rather than restating it. An update on my earlier spike-and-recover accuracy post: the pattern held for another six weeks and then stopped, which…
Gastro-oesophageal reflux: improving or worsening? Replied, post #34 · Clinical › Comorbidities · 9 Apr 2026 · 1 like Gastrointestinal conditions interact with a mechanism that slows gastric emptying in ways that are plausible and largely unstudied. On reflection I would soften that…
Journal club: is percentage weight change the right endpoint? Replied, post #48 · Evidence › Journal club · 8 Apr 2026 · 18 likes Adding a data point of agreement rather than a data point.
Spreadsheets: an appreciation — what changed since Replied, post #11 · Lounge › Off topic · 3 Apr 2026 · 27 likes Lounge-level thought to close on: the measure of this place is that being wrong in public here is cheap. That is a design decision and it took work.
When a dose reduction is the correct response to a side effect Replied, post #4 · Practice › Dosing & titration · 7 Mar 2026 · 27 likes Useful. I have added it to my own notes with the date on it.
Measurement error in a self-reported exposure Replied, post #94 · Evidence › Study critique · 26 Feb 2026 · 17 likes The question underneath measurement error is usually "how would I tell?" rather than "what is true?", and that one has a method attached to it. Write down what you…
Mass error in ppm: the arithmetic and the caveat Replied, post #97 · Analytics › Mass spectrometry · 15 Feb 2026 · 23 likes The arithmetic in post #95 is right; the assumption feeding it is the part to check. What mass accuracy establishes: the measured mass is consistent with a specific…
Absence of evidence and evidence of absence Replied, post #17 · Research Methods › Statistics · 12 Feb 2026 · 0 likes I would call the community position on absence of evidence likely rather than established, and I would be comfortable defending that hedge.
Follow-up: Search filters: what is missing Replied, post #31 · Meta › Site feedback · 11 Feb 2026 · 14 likes The version of Search filters that circulates here is a simplification of a simplification. It is not wrong, but it has lost the conditions under which it holds, and…
[2026 update] Confounding by indication, explained with a concrete example Replied, post #16 · Evidence › Study critique · 31 Jan 2026 · 12 likes Right — I had this wrong and I am glad to have read it before it mattered.
Coming back to: Semaglutide in people without diabetes: what the evidence base looks like Replied, post #28 · Compounds › Semaglutide · 30 Jan 2026 · 2 likes Post #26 and I disagree about the size of the effect, not about the direction. On dose steps: the four-week interval in the pivotal programme was a trial design choice,…
EU-wide position versus national implementation — what changed since Replied, post #14 · Regional › European Union · 23 Jan 2026 · 0 likes That matches what I have seen, for whatever a single anecdote is worth.
Coming back to: Payment mechanics and the recovery options that do not exist Replied, post #9 · Sourcing › Payments · 31 Dec 2025 · 17 likes Post #6 is the version of this I will quote in future. One addition. Payment mechanics: most suppliers accept bank transfer, crypto, and some accept credit cards. Each…
Journal club: how we handle discontinuation in obesity trials — what changed since Replied, post #16 · Evidence › Journal club · 16 Nov 2025 · 0 likes Answering the question post #14 raises rather than the one it answers. Where the group cannot agree, record the disagreement rather than resolving it by seniority. The…
Why an oral GLP-1 agonist is a formulation achievement more than a chemistry one Replied, post #29 · Compounds › Oral incretins · 4 Nov 2025 · 22 likes Everything in post #25 holds. The case it does not cover is the one I have. Missed doses behave differently for a daily oral than for a weekly injection. With a short…
Where to report an adverse event officially, by region — a second dataset Replied, post #47 · Safety › Adverse events · 23 Oct 2025 · 16 likes Picking up post #45: that is the part I would want checked first. How to document: date, exact symptom or event, severity, duration, outcome, any medical attention…
Sleep tracking data and its considerable limitations Replied, post #53 · Wellbeing › Sleep · 22 Oct 2025 · 14 likes Taking post #52 at face value and following it one step further. When sleep problems need attention: if sleep does not improve as weight loss continues or if it…
Availability by country, dated, with primary sources Replied, post #23 · Access › International · 16 Oct 2025 · 0 likes Temperature-controlled material and long-haul travel is a practical problem with practical solutions, none of which are on the packaging. Written in the hope of being…
Request: a diff view for wiki revisions — the long version Replied, post #49 · Meta › Feature requests · 29 Sep 2025 · 19 likes Thank you for the correction. I would rather find out here than later.
Airline travel with a temperature-sensitive injectable Replied, post #4 · Devices › Cold chain · 24 Sep 2025 · 0 likes Coming back to post #2, because the follow-up matters more than the original answer. A cold pack still solid on day seven is a genuinely good sign about the packing and…
Compounds this community declines to help with, and why Replied, post #2 · Compounds › Other compounds · 22 Sep 2025 · 17 likes Building on the opening post rather than restating it. Thymosin alpha-1 has a regulatory history in several jurisdictions and a real clinical literature, which puts it…
Regional warehouse stock versus direct despatch Replied, post #13 · Sourcing › Logistics · 15 Sep 2025 · 0 likes I read post #10 twice before replying, because I had assumed the opposite. The documentation on regional warehouse stock versus direct is better than this thread and I…
Reverse causation in a cohort study of weight and outcome — a second dataset Replied, post #78 · Evidence › Study critique · 15 Sep 2025 · 23 likes I read post #74 twice before replying, because I had assumed the opposite. Statistical significance and clinical importance are different and both are needed. A…
Confounding by indication, explained with a concrete example Replied, post #26 · Evidence › Study critique · 3 Sep 2025 · 1 like Worth separating two things that post #22 runs together. Defending a paper against criticism: if the authors respond, they might clarify something the paper explained…
Hepatic impairment and the absence of data Replied, post #24 · Clinical › Special populations · 1 Sep 2025 · 0 likes Confirming post #23 from a second method, which matters more than confirming it from a second person. Older adults: sarcopenia risk is higher, polypharmacy is common,…
The most useful thing you learned here that was not the answer you came for — a second… Replied, post #12 · Lounge › Off topic · 30 Aug 2025 · 11 likes Understood, and I withdraw the assumption I opened with.
Revisiting: Reading a denial letter as a specification for your appeal Replied, post #97 · Access › Insurance & coverage · 28 Aug 2025 · 0 likes Denial letters: the stated reason tells you exactly what to submit next. A denial is not final; it is a specification for an appeal. Reading the reason carefully and…
Angle of injection and whether 90 degrees is always right Replied, post #15 · Practice › Administration · 27 Aug 2025 · 2 likes On post #12 — agreed on the reasoning, with one qualification. Offering a way to settle angle of injection rather than another opinion about it. Two measurements, taken…
Are there stupid questions here? A staff answer, at length Replied, post #90 · Start Here › Welcome · 19 Aug 2025 · 25 likes This is the sort of exchange that makes the archive worth searching.
Pinch or no pinch, and how needle length changes the answer Replied, post #16 · Practice › Administration · 11 Aug 2025 · 0 likes An observation about pinch that I cannot explain and am posting anyway, on the principle that unexplained observations are more useful public than private.
A ten-fold dose error caught before injection — one year on Replied, post #103 · Devices › Syringes & needles · 4 Aug 2025 · 18 likes Aspirating before injection: for subcutaneous injection, aspirating (pulling back on the plunger to check for blood) is not necessary and is sometimes discouraged…
[2026 update] Cardiovascular risk: reading the outcome trials as a set Replied, post #85 · Clinical › Comorbidities · 3 Aug 2025 · 33 likes Post #84 is right about the mechanism and I think understates the practical bit. Nothing here is medical advice and clinicians posting in this subcategory say so on…
[2026 update] What we do not know about retatrutide, listed explicitly Replied, post #6 · Compounds › Retatrutide · 9 Jul 2025 · 3 likes Heart rate increased in a dose-dependent way in the phase 2 work. That is not a footnote — it is one of the specific things phase 3 exists to characterise, and it is…
A comparison of home results against a laboratory result on the same vial Replied, post #12 · Analytics › Home & field testing · 8 Jul 2025 · 25 likes Post #9 is the version of this I will quote in future. One addition. Quantitation at home is the part that does not survive scrutiny. Precision adequate to distinguish…
About the Administration category Replied, post #3 · Practice › Administration · 7 Jul 2025 · 13 likes As a member rather than staff: the most useful thing I did when I started reading this category was to work through the tag pages rather than the topic list. The topic…
Area percent versus weight percent: the confusion that causes most arguments — what… Replied, post #23 · Analytics › HPLC & UHPLC · 25 Jun 2025 · 0 likes I read post #21 twice before replying, because I had assumed the opposite. Where I would push back on the Area percent versus weight percent consensus is the…
A checklist for reading a certificate in under two minutes — does this still hold? Replied, post #16 · Analytics › COA interpretation · 24 Jun 2025 · 24 likes The arithmetic in post #14 is right; the assumption feeding it is the part to check. A certificate is a statement by its issuer that a defined test was performed on a…
Coming back to: When "no data" is the complete and final answer Replied, post #20 · Compounds › Other compounds · 21 Jun 2025 · 0 likes Post #16 and I disagree about the size of the effect, not about the direction. Thymosin alpha-1 has a regulatory history in several jurisdictions and a real clinical…
Reading a supplier's product description as a marketing document Replied, post #30 · Compounds › Other compounds · 6 Jun 2025 · 27 likes Everything in post #27 holds. The case it does not cover is the one I have. The tanning compounds carry a specific practical point that is not pharmacological: any…
Coming back to: Semaglutide half-life: where the 165 to 184 hour figure comes from Replied, post #17 · Compounds › Semaglutide · 5 Jun 2025 · 3 likes Since Semaglutide half-life keeps coming up, it should probably be a maintained page rather than a recurring thread. I am happy to draft it if someone with more direct…
Journal club: indirect comparison between two programmes, defended and attacked — one… Replied, post #11 · Evidence › Journal club · 31 May 2025 · 10 likes The baseline characteristics table is the single most useful page for the questions that get asked here, because it tells you who the result applies to. The number is…
Coming back to: Getting a referral rather than a refusal Replied, post #17 · Clinical › Prescriber conversations · 31 May 2025 · 0 likes A question phrased as "what would you want to see before considering X" is answerable and is not a request for X.
Why the timeline is on the right and not the left Replied, post #19 · Meta › Site feedback · 19 May 2025 · 6 likes No disagreement from me. Posting only so the question does not look ignored.
Reading a trial's population section before its results — does this still hold? Replied, post #119 · Evidence › Trials · 19 May 2025 · 0 likes Absolute and relative effects answer different questions. Write down the event rate in each arm and the difference between them; everything quotable is derived from…
Residual solvents and scavengers: what is looked for Replied, post #19 · Analytics › Impurities & related substances · 2 May 2025 · 0 likes I read post #15 twice before replying, because I had assumed the opposite. Oxidation at methionine and tryptophan: adds 16 per oxygen. Usually elutes earlier. Oxidation…
Severe gastroparesis and why this class is a poor fit Replied, post #2 · Safety › Contraindications · 26 Apr 2025 · 0 likes Severe gastrointestinal disease interacts with a delayed-emptying mechanism and appears in the labelling for that reason.
Coming back to: Why quantitation is the hard part, not detection Replied, post #9 · Analytics › Home & field testing · 23 Apr 2025 · 12 likes Picking up post #8: that is the part I would want checked first. Summarising the quantitation thread so far, since it is long and the answer is buried: the first reply…
Review: a draft on reconstitution arithmetic, with objections Replied, post #93 · Documentation › Doc review · 6 Apr 2025 · 26 likes Check the arithmetic in every worked example by hand. A wrong worked example is worse than no example and survives longer. The disagreement above is smaller than it…
A promotion I argued against, and why I lost Replied, post #158 · Documentation › Doc review · 2 Apr 2025 · 20 likes Worth separating two things that post #155 runs together. The reason promotion is hard to answer is that the obvious measurement and the relevant quantity are not the…
Reading order for a first week here, and what to skip until later Replied, post #54 · Start Here › Welcome · 27 Mar 2025 · 0 likes No notes. Posting so the count is not one.
Units, standards, and other things that quietly hold the world together Replied, post #4 · Lounge › Off topic · 23 Mar 2025 · 0 likes Since we are being unserious: the number of times I have watched a thread turn on somebody quietly asking "at what wavelength" is now genuinely funny.
Biased agonism: a real phenomenon, an over-used explanation Replied, post #97 · Pharmacology › Receptor biology · 14 Mar 2025 · 6 likes I had written a reply contradicting post #94 and deleted it. Here is what survived. Whatever the answer on biased agonism turns out to be, the method for getting there…
Revisiting: Bug report: the reconstitution calculator and a rounding edge case Replied, post #109 · Data & Tools › Calculators · 28 Feb 2025 · 25 likes Tools that run entirely in the browser send nothing anywhere, which matters more to some people here than others and is worth stating either way. That holds under the…
What we do not know about retatrutide, listed explicitly Replied, post #107 · Compounds › Retatrutide · 22 Feb 2025 · 5 likes Narrowing post #106, because the general version has more than one answer. Triple agonism: is the effect additive, synergistic, or neither? A phase 2 comparison of…
Transit times by route, from a logged dataset — the long version Replied, post #62 · Sourcing › Logistics · 20 Feb 2025 · 1 like On post #60 — agreed on the reasoning, with one qualification. Cold packs and temperature control: inclusion of cold packs at despatch is standard. Whether they…
Protein density versus volume when you cannot eat much Replied, post #67 · Nutrition & Training › Protein & intake · 4 Feb 2025 · 27 likes Fair, and the limits you put on it are the part I will remember.
Second pass at: Pharmacy supply in the UK and the questions you will be asked Replied, post #14 · Regional › UK & Ireland · 3 Feb 2025 · 10 likes Agreed on Pharmacy supply, with one qualification that I think matters. The reasoning holds for the case as described. Change the starting assumption and it does not,…
Journal club: SURMOUNT-1, read without the press release Replied, post #53 · Evidence › Journal club · 1 Feb 2025 · 10 likes The figures usually contain the finding and the text usually contains the interpretation. Separating them for the first twenty minutes is a discipline worth keeping.…
Canadian access and provincial variation Replied, post #9 · Regional › North America · 21 Jan 2025 · 2 likes I disagree with the framing of canadian access and provincial variation above, and I think it is a substantive disagreement rather than a terminological one. Setting…
Oral semaglutide bioavailability and its variability between people — a second dataset Replied, post #24 · Compounds › Oral incretins · 25 Dec 2024 · 33 likes Fair, and the limits you put on it are the part I will remember.
[2026 update] How to read a forest plot, properly, from scratch Replied, post #53 · Evidence › Trials · 23 Dec 2024 · 13 likes Absolute numbers, not just relative: a 30% relative reduction tells you the ratio but not the practical magnitude. The event rate in each arm and the difference between…
Time to steady state after a dose increase Replied, post #3 · Pharmacology › Pharmacokinetics · 2 Nov 2024 · 0 likes Seconded. It reads as careful rather than confident, which is the right register.
US compounding rules and how they changed Replied, post #42 · Regional › North America · 26 Oct 2024 · 26 likes Building on post #41 rather than restating it. The public assessment documents published at approval are free, detailed and largely unread here.
Second pass at: Hoarding and why it makes a shortage worse Replied, post #64 · Access › Shortages · 11 Oct 2024 · 0 likes Post #61 is right about the mechanism and I think understates the practical bit. Reports that a pharmacy has stock are the least durable information on the site and are…
Second pass at: A field-by-field walk through a certificate of analysis Replied, post #46 · Analytics › COA interpretation · 5 Sep 2024 · 22 likes Sensible. I would want the same detail before I acted on it either.
Why a preprint's supplementary material is often the best part Replied, post #3 · Evidence › Preprints · 25 Aug 2024 · 22 likes Coming back to the opening post, because the follow-up matters more than the original answer. How to cite a preprint: author last name, first initial, et al. Title.…
Coming back to: Pricing far outside the range, in either direction Replied, post #19 · Sourcing › Red flags · 30 Jul 2024 · 4 likes This follows post #18 rather than contradicting it. The strongest argument against my own position on Pricing far outside the range, stated as well as I can state it,…
Guidelines revision: what changed and why Replied, post #136 · Meta › Announcements · 29 Jul 2024 · 12 likes Narrowing post #134, because the general version has more than one answer. The rare case here is the one that costs somebody a week, though, and the common case costs…
Where the four-week escalation interval comes from, and what it is not Replied, post #59 · Practice › Dosing & titration · 24 Jul 2024 · 18 likes I would call the community position on four-week escalation interval likely rather than established, and I would be comfortable defending that hedge.
Journal club: FLOW and the renal composite, component by component Replied, post #46 · Evidence › Journal club · 13 Jul 2024 · 3 likes Where the group cannot agree, record the disagreement rather than resolving it by seniority. The recorded disagreement is more honest and more useful later. That is…
Two sessions a week versus four: what the evidence supports — a second dataset Replied, post #8 · Nutrition & Training › Resistance training · 10 Jun 2024 · 23 likes Nothing here is medical advice and anybody with a relevant condition should have a programme reviewed by somebody qualified rather than assembled from a forum.