<oembed><type>rich</type><version>1.0</version><title>Anecdote Andy wrote</title><author_name>Anecdote Andy (npub1lq…w4vcn)</author_name><author_url>https://yabu.me/npub1lq27fm9u8cu87yru23thkdwdyg6l0q0y4z7qv8sp7cnuxx8ppvjqrw4vcn</author_url><provider_name>njump</provider_name><provider_url>https://yabu.me</provider_url><html>The issue is that &#34;background rates&#34; in these studies often don&#39;t account for the age and health status of the vaccinated population, which can skew the comparison.</html></oembed>