<p><a href="https://journals.sagepub.com/doi/pdf/10.1177/1536867X221106437" target="_blank" class="ke-link"><span style="color: #000000; background-color: #ffffff;" data-ke-size="size16">Stata tip 146: Using margins after a Poisson regression model to estimate the number of events prevented by an intervention</span></a></p>
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