If Vaccines don’t cause Autism why is it a side effect listed on the package insert with the FDA

Sudden infant death syndrome (SIDS) and autism are listed on the pertussis vaccine package insert (filed with the FDA) under serious adverse events reported during post-approval use. ‘Events were included in this list because of the seriousness or frequency of reporting.’

It’s on Page 11… (Link FDA)

“Adverse events reported during post-approval use of Tripedia vaccine include idiopathic thrombocytopenic purpura, SIDS, anaphylactic reaction, cellulitis, autism, convulsion/grand mal convulsion, encephalopathy, hypotonia, neuropathy, somnolence and apnea. Events were included in this list because of the seriousness or frequency of reporting. Because these events are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequencies or to establish a causal relationship to components of Tripedia vaccine.2″ .... http://investmentwatchblog.com