Question: Is this describing a (1) directly correlative relationship, (2) conditionally causative relationship, (3) causative relationship, or (0) no relationship.

This randomized clinical trial demonstrated better postoperative outcomes at 6\\xa0months when subjects received preoperative IVB 5-10\\xa0days before PPV compared to 1-3\\xa0days for the treatment of PDR-related complications.
user
This no relationship.
assistant