Please assess the completion status of the following clinical trial:

Trial Title: Risk Factors for Low Back Pain in Adults A 23-year Prospective Cohort Study of 14-15-year-old Schoolchildren.

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

Eligibility Criteria:
Inclusion Criteria:~* Being a member of the original Western Zealand cohort~* Ability to understand and write in Danish~* Having access to the Danish digital mail system e-Boks. (Access to e-Boks is mandatory in Denmark unless you have special needs)~Exclusion Criteria:~We have no formal exclusion criterias

- Gender: ALL
- Minimum Age: 30 Years
- Maximum Age: 45 Years
- Healthy Volunteers: t

Study Arms:
- Inception cohort, former pupils in different schools in Western Zealand (Type: None): 1327 former Western Zealand pupils (originally 1389). Aged 14-15 in 1997. This is the first follow up on this cohort.

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