Missing values
NA means not asked, not answered, or not applicable. In S2, we can see that 60% of respondents are NA. For General Practitioners, it is 100% NA because it has not been asked. For nurses, it is 0 percent NA.
NA means not asked, not answered, or not applicable. In S2, we can see that 60% of respondents are NA. For General Practitioners, it is 100% NA because it has not been asked. For nurses, it is 0 percent NA.
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