Is it a continuing disability review or a redetermination?

Understanding Supplemental Security Income (SSI)-- Continuing Disability Reviews

They're looking at stuff in your past (albeit recent past too) so not anything you can do much about, it's not like you can suddenly be more/less disabled than you have been over the previous 3 years. But they're looking through 3 years worth of stuff, so that could take them awhile, depending on how complicated your stuff is. My friend was quadriplegic so it didn't take long to decide he was still quadriplegic :-)