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GidMK's profile
Health Nerd
Health Nerd
Health Nerd
Verified account
@GidMK

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Health NerdVerified account

@GidMK

Epidemiologist. Writer (Guardian, Observer etc). "Well known research trouble-maker". PhDing at @UoW Host of @senscipod Email gidmk.healthnerd@gmail.com he/him

Sydney, New South Wales
theguardian.com/profile/gideon…
Joined November 2015

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    Health Nerd‏Verified account @GidMK 30 Jan 2020

    Here's a question for #epitwitter - has anyone looked into how eating patterns change over time? I'm thinking of all those nutr epi papers that use a single datapoint to calculate exposure over decades, and how reasonable it is

    7:28 PM - 30 Jan 2020
    • 3 Retweets
    • 11 Likes
    • Els Das Kelsey (she/her) Build Up DIETITIANS gourmetmetrics JH // from fairest tweeps we desire increase Eric Weinhandl (((Jim Stein))) Dr. Naira Kalra Wendy Haaf
    4 replies 3 retweets 11 likes
      1. New conversation
      2. Sharon Kirkpatrick‏ @SIKirkpatrick 30 Jan 2020
        Replying to @GidMK

        Some researchers have started to integrate time-varying models - for e.g., see https://www.ncbi.nlm.nih.gov/pubmed/26173857  This requires collecting dietary intake data at regular intervals, such as 4-6x over a year using self-administered recalls or records

        1 reply 0 retweets 2 likes
      3. Health Nerd‏Verified account @GidMK 30 Jan 2020
        Replying to @SIKirkpatrick

        Sure, and I think that's a very good idea, but I'm thinking more about the very large number of studies that use a single point for exposure and assume it's consistent over time - is that assumption reasonable? Has anyone looked into it?

        2 replies 0 retweets 0 likes
      4. Show replies
      1. New conversation
      2. Daniel Ibsen‏ @daniel_ibsen 30 Jan 2020
        Replying to @GidMK

        Another challenge is harmonization of dif FFQs. For instance, if there are more response options people tend to eat more. Other issues incl dif portion sizes and recipes.. it can be challenging to interpret the changes. It isn’t something like NHANES you’re after, @GidMK ?

        1 reply 0 retweets 5 likes
      3. Health Nerd‏Verified account @GidMK 30 Jan 2020
        Replying to @daniel_ibsen

        Nope, I'm looking for someone else's analysis 😉 Doing it myself would be a big project!

        0 replies 0 retweets 1 like
      4. End of conversation
      1. Guy Fagherazzi, PhD  😷‏ @GFaghe 30 Jan 2020
        Replying to @GidMK

        This paper is not perfect and does not answer your question directly, but it describes the evolution of diet (F&V) over a 12 year period in a large French cohort study using FFQs. Overall it is rather stable over time but some specific subgroups aren't. https://pubmed.ncbi.nlm.nih.gov/29183405-socio-economic-factors-associated-with-an-increase-in-fruit-and-vegetable-consumption-a-12-year-study-in-women-from-the-e3n-epic-study/?from_term=Aurelie+affret&from_pos=10 …

        0 replies 0 retweets 3 likes
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      1. Gunter Kuhnle‏ @ggkuhnle 30 Jan 2020
        Replying to @GidMK

        NHS and HPFS use regular FFQs, so they assess dietary intake quite frequently (and make use of these data - although I don't know whether they update food composition data). Consistency probably depends on foods as well - coffee or tea is probably more long term than others.

        0 replies 0 retweets 1 like
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