Let me clarify what a confidence interval is. When they say odds ratio was "1.21 (95% confidence interval: 0.69, 2.13);" they aren't saying "It's slightly highe

Let me clarify what a confidence interval is. When they say odds ratio was "1.21 (95% confidence interval: 0.69, 2.13);" they aren't saying "It's slightly higher." They are saying "We have no idea what the odds are, radio could LOWER your odds down to 69% or raise them up to 213%." Scientists treat this as a non-result, try the study again with more data. A confidence interval that IS statistically significant will have an upper-bound below one, or a lower bound above one i.e. (95% confidence interval 1.10, 3.31) meaning we can be 95% sure that this increases your odds by 10% or more [up to 331%]