![\"bmi\"](\"https://www.googleapis.com/download/storage/v1/b/kaggle-forum-message-attachments/o/inbox%2F1599018%2F3e28a65c0ff83eb63a40a4fd9ec6331e%2Fbmi_comparison.png?generation=1729609899112099&alt=media\")
Hi,
\nin the dataset we have two feature columns that are supposed to measure the BMI, Physical-BMI and BIA-BIA_BMI. A have just discovored, that the values in these features don't alwys match (see plot).
\nThis continues the saga of the BMI beeing a bit of a weird feature as already discussed here.
I think this BIA test always inclued BMI, so they ended up measuring it twice. For some reason they come to different conclusions in the two measurements. Could be a measurement mistake or the person actually changed in height or body weight. The height and weight features do match the Physical-BMI.
To be honest, I would probably remove both BMI features….
\n
Hi,
\nin the dataset we have two feature columns that are supposed to measure the BMI, Physical-BMI and BIA-BIA_BMI. A have just discovored, that the values in these features don't alwys match (see plot).
\nThis continues the saga of the BMI beeing a bit of a weird feature as already discussed here.
I think this BIA test always inclued BMI, so they ended up measuring it twice. For some reason they come to different conclusions in the two measurements. Could be a measurement mistake or the person actually changed in height or body weight. The height and weight features do match the Physical-BMI.
To be honest, I would probably remove both BMI features….
\n
Nice to see the comparison plot. For those keeping BMI: the Physical BMI is given for 2520 of the 2736 targeted rows, but the BIA BMI is only in 1813 of them.
", "rawMarkdown": "Nice to see the comparison plot. For those keeping BMI: the Physical BMI is given for 2520 of the 2736 targeted rows, but the BIA BMI is only in 1813 of them.", "votes": null }, { "id": "3025773", "postDate": "10/23/2024 06:15:08", "content": "Yes, but note that the BMI is measured on different dates mostly, leading to a difference in results @vulpesvulpes
", "rawMarkdown": "Yes, but note that the BMI is measured on different dates mostly, leading to a difference in results @vulpesvulpes", "votes": null }, { "id": "3025807", "postDate": "10/23/2024 06:33:55", "content": "Yes. But can we try different measurement methods. This is likely calculated using height and weight (BMI = weight(kg)/height(m)^2)
", "rawMarkdown": "Yes. But can we try different measurement methods. This is likely calculated using height and weight (BMI = weight(kg)/height(m)^2)", "votes": null } ], "comments": [ { "id": 3025259, "author_name": "dan3dewey", "author_url": "", "post_date": "10/22/2024 15:23:17", "content": "Nice to see the comparison plot. For those keeping BMI: the Physical BMI is given for 2520 of the 2736 targeted rows, but the BIA BMI is only in 1813 of them.
", "votes": null, "replies": [] }, { "id": 3025773, "author_name": "ravi20076", "author_url": "", "post_date": "10/23/2024 06:15:08", "content": "Yes, but note that the BMI is measured on different dates mostly, leading to a difference in results @vulpesvulpes
", "votes": null, "replies": [] }, { "id": 3025807, "author_name": "sumit08", "author_url": "", "post_date": "10/23/2024 06:33:55", "content": "Yes. But can we try different measurement methods. This is likely calculated using height and weight (BMI = weight(kg)/height(m)^2)
", "votes": null, "replies": [] } ], "raw_markdown_by_id": { "3025250": "Hi,\n\nin the dataset we have two feature columns that are supposed to measure the BMI, `Physical-BMI` and `BIA-BIA_BMI`. A have just discovored, that the values in these features don't alwys match (see plot). \nThis continues the saga of the BMI beeing a bit of a weird feature as already discussed [here](https://www.kaggle.com/competitions/child-mind-institute-problematic-internet-use/discussion/535354#3024016).\n\nI think this BIA test always inclued BMI, so they ended up measuring it twice. For some reason they come to different conclusions in the two measurements. Could be a measurement mistake or the person actually changed in height or body weight. The height and weight features do match the `Physical-BMI`. \n\nTo be honest, I would probably remove both BMI features....\n\n", "3025259": "Nice to see the comparison plot. For those keeping BMI: the Physical BMI is given for 2520 of the 2736 targeted rows, but the BIA BMI is only in 1813 of them.", "3025773": "Yes, but note that the BMI is measured on different dates mostly, leading to a difference in results @vulpesvulpes", "3025807": "Yes. But can we try different measurement methods. This is likely calculated using height and weight (BMI = weight(kg)/height(m)^2)" }, "source": "meta" }