Recent content by aeneasgladius

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    Interaction

    I really appreciated your availability and kindness but I honestly needed now just a simple answer. thank you so much
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    Interaction

    I suspected that age could be a counfoundig . In fact in the context of the pathology I am examining, age could be associated both with exposure (i.e. antibody positivity; in fact I found a found that prevalence increased by age) and with the outcome. I am not a statistician and I am not an...
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    Interaction

    You are right about both things. I'm definitely convinced that your advice is right. Have a good day and thank you again
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    Interaction

    Thank you all. I have understood your explanations. You're right. A further question please: Could I minimize that by stratifyng by smaller age groups? Just for verifying if interaction occurs or not. In other words may I use stratification to assess interaction presence even in cases of...
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    Interaction

    Tis is a real group of patients, the estimated median age is real. According to Scklo and Nieto is a simple a and fesible means to establish if effect heterogeinty exsist. My aim is to understand of what kind of interaction i am deling with. Thank you
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    Interaction

    this is a case-contro study. By analysing crude dataI found a not significant association. after stratification by age (58 years is the participants' median age) is evident an effect heterogeneity. I think the there is a multiplicative positive interaction . Is this interaction quantitative or...
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    Interaction

    My concern is if p value and confidence interval have a role in interaction definition
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    Interaction

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    Interaction

    Hi, In your opinion is this a multiplicative qualitative or quantitative interaction?