Please assess the completion status of the following clinical trial:

Trial Title: Supplemental Oxygen Reduces Surgical Infection

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Elective colorectal resection,~* Patients having abdominal-peritoneal reconstructions were included, but not those scheduled for minor colon surgery (e.g., polypectomy, isolated colostomy) or laparoscopic surgery.~Exclusion Criteria:~* Exclusion criteria included expected surgery time of less than one hour, fever or existing signs of infection, diabetes mellitus (type I or II), HIV infection, weight loss exceeding 20% in the previous three months, serum albumin concentration \< 30 g/L, and a leukocyte count \<2500 cells/ml.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- 80% perioperative oxygen (Type: ACTIVE_COMPARATOR): Perioperative supplemental oxygen: Patients were randomly assigned to 80% fraction of inspired oxygen (FIO2) intraoperatively and for 6 hours after surgery. Anesthetic treatment and antibiotic administration were standardized.
- 30% perioperative oxygen (Type: PLACEBO_COMPARATOR): Standard oxygen: Patients were randomly assigned to 30% fraction of inspired oxygen (FIO2) intraoperatively and for 6 hours after surgery. Anesthetic treatment and antibiotic administration were standardized.

Based on this trial design, predict the completion outcome and termination type (if applicable).