In this formula we see how time , rate , and risk are related. Wong CS, et al. Prospective cohort study. Wong, et al. Because risk ratios are more interpretable, I would prefer this measure.
Binomial models are the basis for logistic regression and all the same assumptions apply.
For examples, see homeworks 4 and 5 solutions. For examples, see homeworks 4 and 5 solutions. If this is their perspective, then whether it approximates the risk ratio does not matter. However, if they were also interested in comparing and communicating the risks, the odds ratio was a poor choice. In this case, because this was a prospective cohort study, they could have calculated the risk and risk ratios directly, including converting the adjusted odds ratios from the logistic regression model into risk ratios.