Inclusion Criteria:  1.Age from 18 to 80 years old; 2.The clinical diagnosis is non-specific low back pain, the course of disease is ≥12 weeks;  Exclusion Criteria:  1.Combined with specific lumbar spine diseases, physical diseases affecting sports 2.Due to mental or psychological abnormalities; refused to accept telephone interviews; 3.Failed to answer the interview call for 3 consecutive times;