When men and woman are in the hospital for surgery can they equally have low oxygen levels and have oxygen tube in their nose?

Update: I just wonder that because when my mom is out in public, she finds she sees more older woman than older men with the oxygen tank in their nose. Maybe they both need it when they smoke maybe men refuse to wear it. That's why woman tend to live longer!
Update 2: But when I am out in public when I c a person with an oxygen tube in their nose, it is mostly an older person either an old man or an old woman. I c it as equal!
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