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ScienceUpFirst | LaScienced'Abord Profile picture
@ScienceUpFirst
Oct 18, 2021 • 6 tweets • 3 min read • Read on X
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Did you know that not all scientific evidence is equal? 🤔

The more the study is influenced by the expert, the higher the risk of bias.

Check out this thread for an explanation of the hierarchy of evidence 🔺

🧵 [1/6]

#ScienceUpFirst Hierarchy of evidence. A pyramid with 6 levels, with the lea
Studies with a low risk of bias ✅:
1. Systematic reviews and meta-analyses
2. Randomized controlled trials

🧵 [2/6]

#ScienceUpFirst Systematic Review/Meta-analysis: - Systematic reviews use al
Studies with a moderate risk of bias 🤔:

3. Cohort studies
4. Case control studies

🧵 [3/6]

#ScienceUpFirst Cohort Studies: - A cohort study takes place over an extende
Studies with a high risk of bias ❗:

5. Case series and reports
6. Editorials and expert opinions

🧵 [4/6]

#ScienceUpFirst Case Series/Reports: - A case report is a detailed report of
Preprints have been used more frequently since the beginning of the pandemic. They provide data more quickly, but should not replace fully reviewed and accepted papers. ⚠️

🧵 [5/6]

#ScienceUpFirst What about pre-prints? To help control the COVID-19 pandemi
Not all evidence is equal! Knowing the hierarchy of evidence can help you identify how reliable sources are.

🧵 [6/6]

#ScienceUpFirst Consider the source! When assessing accuracy, look at the t

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More from @ScienceUpFirst

ScienceUpFirst | LaScienced'Abord Profile picture
Nov 24, 2022
There is a lot of misinformation circulating online about this idea of “immunity debt”, so it’s important that you get your facts right.

#ScienceUpFirst

🧵[1/10] Decorative element in the lower left corner. A chart with th
The term “immunity debt'' was coined and first mentioned in an opinion paper published in August 2021.

The author discusses the possibility of an immunity gap from the COVID-19 sanitary measure and the importance of vaccination to prevent outbreak.

#ScienceUpFirst

🧵[2/10]
Misinformers are now using this idea of “immunity debt” to suggest that the COVID-19 public health measures have weakened people’s immune systems by preventing them from being exposed to pathogens.

There are 2 problems with how they use this idea.

#ScienceUpFirst

🧵[3/10]
Read 10 tweets
ScienceUpFirst | LaScienced'Abord Profile picture
Nov 22, 2022
Seasonal depression is a type of depression caused by seasonal changes and varying in severity.

While 15% of people will experience mild symptoms (albeit uncomfortable), up to 3% will have full-blown symptoms resulting in serious life impairments.

#ScienceUpFirst

🧵[1/15] A snowman and snowflakes. A...
Some people will experience the “winter blues”: lower mood sets, weight gain, low energy, and persistent fatigue.

In rarer cases, this happens in spring or summer instead, along with insomnia, weight loss, agitation, anxiety, and irritability.

#ScienceUpFirst

🧵[2/15]
Seasonal affective disorder, or SAD, is diagnosed when these seasonal mood changes have a negative impact on daily functioning.

People with SAD might oversleep, withdraw, or stop enjoying the things they normally enjoy.

#ScienceUpFirst

🧵[3/15]
Read 15 tweets
ScienceUpFirst | LaScienced'Abord Profile picture
Nov 8, 2022
Misinformation impacts Canadians’ mental and physical health everyday.

Would you be surprised if we told you some individuals are making a lot of money from misinformation?

#ScienceUpFirst

🧵[1/16] Money symbol background, tw...
Misinformation online is omnipresent, it represent:
-43% of vaccines post
-40-60% of pandemics related post
-30% of YouTube videos about emerging infectious diseases contained either misinformation or misleading information

#ScienceUpFirst

🧵[2/16]
Social media platforms (i.e. Twitter, Facebook, Instagram, YouTube and blogs), as well as communication by public figures, media and online communities all contribute to the spread of misinformation.

#ScienceUpFirst

🧵[3/16]
Read 16 tweets
ScienceUpFirst | LaScienced'Abord Profile picture
Sep 27, 2022
Long COVID has over 100 identified symptoms, of which many are measurable impairments that can't be explained by the stress of the current pandemic. #LongCOVID is definitely not an imaginary disease.

#ScienceUpFirst
🧵[1/8] Text-based image. The background is light blue with a yellow
One of the most common symptoms reported in long COVID patients is fatigue. This can be explained by the low oxygen levels measured in long COVID patients, which can strain the patient’s body.

#ScienceUpFirst
🧵[2/8]
Cognitive impairment (e.g. attention, memory, thinking, or concentrating disorders), can be explained by inflammation, lower blood flow in the brain, and similar processes to cognitive aging and neurodegenerative disease.

#ScienceUpFirst
🧵[3/8]
Read 8 tweets
ScienceUpFirst | LaScienced'Abord Profile picture
Aug 30, 2022
By now you’ve probably heard about Monkeypox.

With cases rising there are a few things we should clear up.

#ScienceUpFirst

🧵[1/7]
Who’s at risk of catching Monkeypox?
Anyone can be affected, regardless of sex, religion, race, gender or sexual orientation.

#ScienceUpFirst

🧵[2/7]
Monkeypox is mainly transmitted through direct contact with an infected person. It can also be contracted through contact with contaminated objects, contact with contaminated respiratory droplets, through infected animals and placenta to fetus.

#ScienceUpFirst

🧵[3/7]
Read 7 tweets
ScienceUpFirst | LaScienced'Abord Profile picture
Aug 30, 2022
By now you’ve probably heard about Monkeypox.

With cases rising there are a few things we should clear up.

Music by Macroblank on archive.org

#ScienceUpFirst

🧵[1/7]
Who’s at risk of catching Monkeypox?
Anyone can be affected, regardless of sex, religion, race, gender or sexual orientation.

#ScienceUpFirst

🧵[2/7]
It is mainly transmitted through direct close contact with an infected person. It can also be contracted through contact with contaminated objects, face-to-face contact with contaminated respiratory droplets, from infected animals and placenta to fetus.

#ScienceUpFirst

🧵[3/7]
Read 7 tweets

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