Socioeconomic determinants of ME/CFS in Norway: a registry study, Hilland and Anthun, 2023

Discussion in 'ME/CFS research' started by Kalliope, Apr 23, 2023.

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  1. Midnattsol

    Midnattsol Moderator Staff Member

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    I think it might be important to note that education doesn't necessarily equal high pay in Norway, and we have a highly educated population.
     
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  2. Dolphin

    Dolphin Senior Member (Voting Rights)

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    Social economic status can change from having ME/CFS, much more often going lower than higher due to decreased economic productivity from the patient working less or not at all and other household members often having to do unpaid labour. This effect could be larger than other conditions on average.

    So measuring it at illness onset and many years into the illness could give different results.
     
  3. Hutan

    Hutan Moderator Staff Member

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    There's quite a lot to this study, a lot of adjustments and assumptions that need to be understood when interpreting the findings. I mean, I think it's been done well, but it's surprisingly complicated.

    Re the hospitalised controls:
    Re the type of ME/CFS patients:
    They use a washout period - so education and income are estimated 5 to 7 years before the period where new hospital records coded with ME/CFS are included. This is done to reduce the chance that the illness in the period before diagnosis influences educational attainment and income. Education is taken as the highest attainment of either the person or either of their parents.



    They conclude that the family educational attainment of people affects the risk of an ME/CFS diagnosis, even when compared to a population that controls for the impact of socioeconomic status on the likelihood of receiving a chronic disease diagnosis. They think the mechanism is likely to be that people with ME/CFS with high education attainment are better able to engage with the health system to get a diagnosis.
     
  4. Midnattsol

    Midnattsol Moderator Staff Member

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    Primary care in Norway doesn't use G93.3, but A04, which is not ME-specific but rather "fatiguing illness" or similar. This is a bit problematic since after 2014 (or thereabout) the new guidelines for ME/CFS says that patients should be diagnosed by their primary doctor not a specialist.

    So I would have been coded as a teen dropout, but with higher attainment from my parents. Huh.

    There was a study on nutrition literacy not so long ago with samples from a health campus in Norway, health literacy is not necessarily high even in those of us with higher education in health care :confused:
     
  5. Andy

    Andy Committee Member

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    And G93.3 is "Postviral and related fatigue syndromes", so no guarantee of PEM.
     
  6. Midnattsol

    Midnattsol Moderator Staff Member

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    Right. With the new guidelines in Norway Canada criteria is supposed to be used, which doesn't mean PEM is necessarily considered but if data is older this problem would likely be larger? I think the study that showed 80% of those that were sent on to specialists didn't have ME came from before the guideline change (note: 80% of those where the cases were unclear for their doctors and thus they were referenced to a specialist, not 80% of all ME patients).
     
  7. Dolphin

    Dolphin Senior Member (Voting Rights)

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    Now published:

    Free full text:
    https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-024-18757-7
    Socioeconomic determinants of myalgic encephalomyelitis/chronic fatigue syndrome in Norway: a registry study
    BMC Public Health volume 24, Article number: 1296 (2024)

    Abstract
    Background
    Previous research has shown that socioeconomic status (SES) is a strong predictor of chronic disease. However, to the best of our knowledge, there has been no studies of how SES affects the risk of Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) that has not been based upon self-reporting or retrospectively screening of symptoms. As far as we know, this is therefore the first study that isolate and describe socioeconomic determinants of ME/CFS and calculate how these factors relate to the risk of ME/CFS diagnosis by utilizing individual level registry data. This allows for objective operationalization of the ME/CFS population, and makes it possible to model SES affect the risk of ME/CFS diagnosis, relative to control groups.

    Data and methods
    We conduct a pooled cross-sectional analysis of registry data from all adult patients diagnosed with ME/CFS from 2016 to 2018 in Norway, coupled with socioeconomic data from statistics Norway from 2011 to 2018. We operationalize SES as household income and educational attainment fixed at the beginning of the study period. We compare the effects of SES on the risk of ME/CFS diagnosis to a population of chronically ill patients with hospital diagnoses that share clinical characteristics of ME/CFS and a healthy random sample of the Norwegian population. Our models are estimated by logistic regression analyses.

    Results
    When comparing the risk of ME/CFS diagnosis with a population consisting of people with four specific chronic diseases, we find that high educational attainment is associated with a 19% increase (OR: 1.19) in the risk of ME/CFS and that high household income is associated with a 17% decrease (OR:0.83) in risk of ME/CFS. In our second model we compare with a healthy population sample, and found that low educational attainment is associated with 69% decrease (OR:0.31) in the risk of ME/CFS and that low household income is associated with a 53% increase (OR: 1.53).

    Conclusion
    We find statistically significant associations between SES and the risk of ME/CFS. However, our more detailed analyses shows that our findings vary according to which population we compare the ME/CFS patients with, and that the effect of SES is larger when comparing with a healthy population sample, as opposed to controls with selected hospital diagnoses.

     
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  8. rvallee

    rvallee Senior Member (Voting Rights)

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    This seems expected given the difficulties in getting a diagnosis, which is more likely for people who can fight the system and confront GPs who want to run the usual abandonment script. It takes a certain level of privilege to be able to do this, let alone succeed at it.

    But it tells us nothing about the socioeconomic determinants of ME/CFS, even less as predictors. This is more a study in the biases inherent in the health care systems than anything having to do with the patients or what is happening to them.

    Just like the terrible so-called evidence-based medicine used to justify this disaster, consisting of nothing but highly biased pragmatic trials, is a garbage in garbage out process, so is this. Health care systems refuse to accurately record the data, therefore the data are not reliable. This is all by choice. We can't know anything for sure as long as there is this stubborn refusal to do it right.
     
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  9. Peter Trewhitt

    Peter Trewhitt Senior Member (Voting Rights)

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    Is ‘socioeconomic determinants’ what the authors intend to say, as this prejudges the issue and switches ‘associated with’ to ‘causes’?
     
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  10. Yann04

    Yann04 Senior Member (Voting Rights)

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    I think they skipped the first semester bachelor presentation of the difference between causation or correlation.
     
  11. Midnattsol

    Midnattsol Moderator Staff Member

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    In presentations at least the team have been very clear on the inequalities in health care and how being more educated will likely help you get a diagnosis.
     
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  12. Yann04

    Yann04 Senior Member (Voting Rights)

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    Good on them then! My bad to judge before digging deep.
     
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  13. Midnattsol

    Midnattsol Moderator Staff Member

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    Unless you’re Norwegian and have listened to their presentations no way for you to have known :)
     
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  14. Kalliope

    Kalliope Senior Member (Voting Rights)

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    They've written a summary on Facebook:

    Autotranslated:

    Today, Geir and Kjartan from Sintef have published the first register data analysis from Tjenestenog MEg.
    In the article, they find a strong statistical association between higher education and being given a G93.3 diagnosis by the specialist health service.
    They write that it is unlikely that this is an epidemiological effect of high education on ME risk, although there is still much we do not know about this disease.
    The findings can at present be interpreted as those with lower education being less able to ask for, or less likely to receive, a G93.3 diagnosis in an encounter with the specialist health service.
    They write that if it should be the case that people with low education have a lower chance of getting an ME diagnosis due to factors associated with poorer "health literacy" and clinical perceptions of patients with low socioeconomic status, then this should be addressed.
    More research is needed in this area.
     
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  15. Midnattsol

    Midnattsol Moderator Staff Member

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    The health literacy in the Norwegian population is not exactly thought to be good. One in three is believed to at or below the "lowest level of health competence". In this case there are three levels of competence, and being at level 2 or 3 is considered sufficient. This is what is said about the requirement for being at level 2 (and above):
    Not sure I'd use similar concepts to describe the necessary knowledge to advocate for oneself to get a correct diagnosis.

    Note, I have no idea how valid the "47 question International Health Literacy Population Survey Questionnaire" used to asses health literacy over here is ;)
     
  16. RedFox

    RedFox Senior Member (Voting Rights)

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    Of course more educated people are more likely to be diagnosed with ME/CFS. Because they can do the research and self-advocacy necessary to get diagnosed.
     
  17. DigitalDrifter

    DigitalDrifter Senior Member (Voting Rights)

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    The treatment is consideration to prevent deterioration.
    What code is there for PEM-ME, or ICC-ME?
     
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  18. rvallee

    rvallee Senior Member (Voting Rights)

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    Doctors hate this one trick
     

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