Jump to content
  • Welcome to Celiac.com!

    You have found your celiac tribe! Join us and ask questions in our forum, share your story, and connect with others.




  • Celiac.com Sponsor (A1):



    Celiac.com Sponsor (A1-M):


  • Get Celiac.com Updates:
    Support Our Content
    eNewsletter
    Donate

Blood Test Result Statistics - Place A Vote, Make A Difference!


Oats

How common are false negatives?  

21 members have voted

You do not have permission to vote in this poll, or see the poll results. Please sign in or register to vote in this poll.

Recommended Posts

Oats Newbie

So many people are wondering how common false negative blood tests for celiac disease are - or to be precise - what the chances are of having celiac disease or non-celiac gluten sensitivity if your doctor tell you that you can go ahead and eat gluten.

If you know you are gluten sensitive - PLEASE VOTE, whether your blood tests straight forward told you you were POSITIVE for Celiac, or they falsely showed up NEGATIVE, and you had find out for yourself that gluten was the culprit. It could make a great difference for someone suffering like you probably have suffered - perhaps for several years!

Off course - this poll will still overlook all the unknowing celiacs out there, mislead by blood tests - who probably stand for the greatest percentage of false negatives.

To make it simple, I only added two alternatives. This is to clearly show the proportions between positives and false negatives.

Thank you for your vote!


Celiac.com Sponsor (A8):
Celiac.com Sponsor (A8):



Celiac.com Sponsor (A8-M):



beebs Enthusiast

Yeah, negative for me. If I eat gluten I end up with a life threatening condition that has me in ER. So deffo problem with gluten.

Interestingly - I also have other autoimmune conditions which they can't figure out - and my bloods are always negative for those things as well...some kind of connection perhaps?

stanleymonkey Explorer

our daughter had positive gene test but everything else was negative, the GI at the children's hospital said that meant she had absolutely no issue with gluten and her tummy problems and rashes were nerve damage, we went gluten free and all her issues disappeared

Roda Rising Star

My IgA tTG was positive. I didn't know about the other tests at the time. I had a positive biopsy, but my GI said I had a "choice" to either go gluten free and follow up in 6 months or continue eating gluten and repeat the blood work in three months. WTF? I went gluten free...DUH that was a no brainer given my test results.

Bubba's Mom Enthusiast

I tested negative to Celiac, but my endoscope showed severe villi flattening and a duodenal ulcer. I was DXed based on that.

Since going gluten-free I've found that I'm hyper sensitive to soy. I've read that soy can cause villi flattenng too, so it has me wondering if my problem is really soy, with a gluten intolerance due to damage in the intestine? A re-scope now that I'm at the 6 months gluten-free stage revealed moderate to severe villi flattening. My health has not improved gluten-free.

I didn't remove every trace of soy until Nov 19. I found it as tocopherol in vitamin supplements, in fish oil supplements, vitamin D supplements. I had only been looking at foods with soy ingredients.

I'm curious if anyone else that tested negative has a secondary intolerance to dairy, soy, or lectins in general? From my reading I find these other things can cause villi flattening and might be mimicking Celiac?

Skylark Collaborator

I was never tested but I'm voting for my mom. She was tested and scoped, both negative. She is DQ2 and definitely gluten-sensitive.

cahill Collaborator

My blood test was negative, my only endoscopy was 16 months after I was gluten free .

I was diagnosed with celiac because: I had a positive DH biopsy, tested positive for Hashimotos and most of my symptoms responded to a gluten free diet .


Celiac.com Sponsor (A8):
Celiac.com Sponsor (A8):



Celiac.com Sponsor (A8-M):



beebs Enthusiast

Geez- already this poll is looking pretty scary...and we are the ones who have figured it out - what about all those other people who continue eating Gluten because they are told they are negative...like my cousin - who has been so ill for years but had a negative biopsy and blood but is totally convinced that its not gluten even though his family history screams to at least check it out :o

GFinDC Veteran

I tested negative on blood antibodies but the blood draw was 3 months after I went gluten-free. I did get a positive hit on one of the gens but I don't remember which one. I think it is the one that makes you grouchy in the morning though.

cahill Collaborator
I did get a positive hit on one of the gens but I don't remember which one. I think it is the one that makes you grouchy in the morning though.

I think I hit positive for that same one, :lol:

Aly1 Contributor

I am a little confused by this poll, so maybe someone will educate the newbie! (Or maybe it's just my brain fog, I am out of it this am!). I thought that there are 2 conditions - celiac and gluten intolerance (well, wheat allergy too, but that's irrelevant here) that fall under an umbrella term of gluten sensitivity. I thought that it's possible to have false negatives for celiac (which is gluten damage specific to the intestines) but that gluten intolerance (non-celiac reactions to gluten) do not show up on tests. Is that incorrect? I tested negative for celiac (bloods only) so I believe that, unless my test was a false negative, I therefore fall into the gluten intolerant category. Do I have it wrong somewhere?

Skylark Collaborator

I think the point of the poll is to show everyone how many people with negative blood tests (for whatever reason) still get sick from eating gluten.

Aly1 Contributor

Oh okay so I am clueless in a different way :oD. But - are there tests that show plain gluten intolerance?

And i voted Negative. I tested negative and get So Sick on gluten.

Oats Newbie

Most doctors leave it at that if the patient tests negative for celiac - not even considering that non-celiac gluten sensitivity might cause the same symptoms!

So yes, the point is to figure out how likely it is that gluten is the culprit, even if you test negative for celiac (no matter if you actually are celiac or the gluten your sensitivity to gluten has a different cause)

I am really surprised by these results... And glad I made the poll so more people won't immediately rule out gluten as the cause of their troubles.

With these results its hard to believe that the the blood tests are supposed to be over 90 % accurate!

Skylark Collaborator

With these results its hard to believe that the the blood tests are supposed to be over 90 % accurate!

This is hardly a controlled study. :P

I'm not sure where got the idea celiac testing is 90% accurate. The studies I've read on the sensitivity of celiac tests give wildly variable numbers depending on both how well the assay is performing and how severe the celiac damage is. I've seen results as low as 70% specificity. You only get 90% under optimal conditions.

Aly1 - No, there is no test for non-celiac gluten intolerance other than response to the diet.

Oats Newbie

This is hardly a controlled study. :P

I'm not sure where got the idea celiac testing is 90% accurate. The studies I've read on the sensitivity of celiac tests give wildly variable numbers depending on both how well the assay is performing and how severe the celiac damage is. I've seen results as low as 70% specificity. You only get 90% under optimal conditions.

Aly1 - No, there is no test for non-celiac gluten intolerance other than response to the diet.

Yes! I also came across some studies like that. With at least a handful of studies on this I really don't see why the official numbers are so high.

Archived

This topic is now archived and is closed to further replies.

  • Get Celiac.com Updates:
    Support Celiac.com:
    Join eNewsletter
    Donate

  • Celiac.com Sponsor (A17):
    Celiac.com Sponsor (A17):





    Celiac.com Sponsors (A17-M):




  • Recent Activity

    1. - Rejoicephd replied to Rejoicephd's topic in Related Issues & Disorders
      5

      Basic metabolic panel results - more flags

    2. - KelleyJo commented on Scott Adams's article in Latest Research
      4

      Study Estimates the Costs of Delayed Celiac Disease Diagnosis (+Video)

    3. - knitty kitty replied to Jmartes71's topic in Related Issues & Disorders
      12

      My only proof

    4. - NanceK replied to Jmartes71's topic in Related Issues & Disorders
      12

      My only proof

    5. - knitty kitty replied to Larzipan's topic in Related Issues & Disorders
      39

      Has anyone had terrible TMJ/ Jaw Pain from undiagnosed Celiac?


  • Celiac.com Sponsor (A19):



  • Member Statistics

    • Total Members
      132,370
    • Most Online (within 30 mins)
      7,748

    Susan Blodgett
    Newest Member
    Susan Blodgett
    Joined

  • Celiac.com Sponsor (A20):


  • Forum Statistics

    • Total Topics
      121.5k
    • Total Posts
      1m

  • Celiac.com Sponsor (A22):





  • Celiac.com Sponsor (A21):



  • Upcoming Events

  • Posts

    • Rejoicephd
      Thank you @trents for letting me know you experience something similar thanks @knitty kitty for your response and resources.  I will be following up with my doctor about these results and I’ll read the articles you sent. Thanks - I really appreciate you all.
    • knitty kitty
      You're right, doctors usually only test Vitamin D and B12.  Both are really important, but they're not good indicators of deficiencies in the other B vitamins.  Our bodies are able to store Vitamin B12 and Vitamin D in the liver for up to a year or longer.  The other B vitamins can only be stored for much shorter periods of time.  Pyridoxine B 6 can be stored for several months, but the others only a month or two at the longest.  Thiamine stores can be depleted in as little as three days.  There's no correlation between B12 levels and the other B vitamins' levels.  Blood tests can't measure the amount of vitamins stored inside cells where they are used.  There's disagreement as to what optimal vitamin levels are.  The Recommended Daily Allowance is based on the minimum daily amount needed to prevent disease set back in the forties when people ate a totally different diet and gruesome experiments were done on people.  Folate  requirements had to be updated in the nineties after spina bifida increased and synthetic folic acid was mandated to be added to grain products.  Vitamin D requirements have been updated only in the past few years.   Doctors aren't required to take as many hours of nutritional education as in the past.  They're educated in learning institutions funded by pharmaceutical corporations.  Natural substances like vitamins can't be patented, so there's more money to be made prescribing pharmaceuticals than vitamins.   Also, look into the Autoimmune Protocol Diet, developed by Dr. Sarah Ballantyne, a Celiac herself.  Her book The Paleo Approach has been most helpful to me.  You're very welcome.  I'm glad I can help you around some stumbling blocks while on this journey.    Keep me posted on your progress!  Best wishes! P.S.  interesting reading: Thiamine, gastrointestinal beriberi and acetylcholine signaling https://pmc.ncbi.nlm.nih.gov/articles/PMC12014454/
    • NanceK
      So interesting that you stated you had sub clinical vitamin deficiencies. When I was first diagnosed with celiac disease (silent), the vitamin levels my doctor did test for were mostly within normal range (lower end) with the exception of vitamin D. I believe he tested D, B12, magnesium, and iron.  I wondered how it was possible that I had celiac disease without being deficient in everything!  I’m wondering now if I have subclinical vitamin deficiencies as well, because even though I remain gluten free, I struggle with insomnia, low energy, body aches, etc.  It’s truly frustrating when you stay true to the gluten-free diet, yet feel fatigued most days. I’ll definitely try the B-complex, and the Benfotiamine again, and will keep you posted. Thanks once again!
    • knitty kitty
      Segments of the protein Casein are the same as segments of the protein strands of gluten, the 33-mer segment.   The cow's body builds that Casein protein.  It doesn't come from wheat.   Casein can trigger the same reaction as being exposed to gluten in some people.   This is not a dairy allergy (IGE mediated response).  It is not lactose intolerance.  
    • trents
      Wheatwacked, what exactly did you intend when you stated that wheat is incorporated into the milk of cows fed wheat? Obviously, the gluten would be broken down by digestion and is too large a molecule anyway to cross the intestinal membrane and get into the bloodstream of the cow. What is it from the wheat that you are saying becomes incorporated into the milk protein?
×
×
  • Create New...

Important Information

NOTICE: This site places This site places cookies on your device (Cookie settings). on your device. Continued use is acceptance of our Terms of Use, and Privacy Policy.