<prompt> True regarding endo-metriosis associated dysmenorrhea is all exceptMore severe than primary dysmenorrhea.Occurs 24 to 48 hours after start of menses.Less responsive to NSAIDs.Deep infiltrating endometriosis correlates with severity of dysmenorrhea.  <response>: Endometriosis associated dysmenorrhea typically precedes menses by 24 to 48 hours. 