Please assess the completion status of the following clinical trial:

Trial Title: Human Brain Adaptation to Chronic Pain and Its Effects on Opioid Use

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: CASE_CONTROL
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~1. Age 18-65~2. With and without history of chronic muscle-skeletal pain \*~3. Scheduled to undergo elective abdominal surgery requiring overnight hospital admission~4. Opioid naïve\*\*~5. Willing to comply with study procedures as outlined in the protocol~6. Willing and able to provide informed consent~7. Having an email address and access to a computer or electronic tablet~Exclusion Criteria:~1. Current use of opioids (includes ANY use in past 3 months)~2. Cancer diagnosis~3. Patient presenting the following documented conditions:~Untreated psychosis Current suicidal ideation Current substance abuse

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 65 Years
- Healthy Volunteers: None

Study Arms:
- Chronic pain group (Type: None): post-surgical opioid use measured at 1 day and 1 week.
- No chronic pain (Type: None): post-surgical opioid use measured at 1 day and 1 week.

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