BJOG. 2021 Aug 31. doi: 10.1111/1471-0528.16895. Online ahead of print.
ABSTRACT
Many clinicians are of the opinion that observational studies may provide only “statistical associations”, but not “causal inference”. And further, that only randomized designs ensure causal interpretation. For the same reason, many medical journals have made rules for all observational studies finding significant statistical associations to be presented as just “associations” often emphasizing that a causal inference is not possible.
PMID:34464508 | DOI:10.1111/1471-0528.16895
