Table 1.

Inclusion and Exclusion Criteria

Inclusion Criteria
1.	Age ≥ 65 years
2.	Primary care visit for back pain based on ICD9 code (Table 2)
Exclusion criteria:
1.	Health care encounter for back pain within 6 months
2.	Previously contacted for registry participation
3.	Prior lumbar spine surgery
4.	Developmental spine deformities
5.	Inflammatory spondyloarthropathy
6.	Spinal malignancy or infection
7.	History of cancer within past 5 years excluding non-melanomatous skin cancer
8.	History of HIV within past 5 years
9.	No telephone
10.	Planning on leaving Health System within the next 12 months
11.	Unable to understand English
12.	Severe mental impairment that would interfere with answering questions