[idanman]

Only 150 people with 35 intubated. There are several factors that could explain (at least part of) their results and one is age. They do mention that age denotes a statistically significant difference between intubation and no intubation under Table 1.

It is not easy to tell but depends on how you read this it could be that they had some data and they went fishing. You can always find correlations by fishing through the data and looking for when does the p-value become low enough [0] but its not a valid way to do data analysis. It is also data from one hospital and one region. I don't think you can draw too many conclusion from this one study.

It is published in a journal with impact factor of 6.36 and a metabolic journal. If this was a significant finding I would think they would publish in a higher impact factor journal.

So overall it calls for some skepticism. [0]https://en.wikipedia.org/wiki/Data_dredging