FABQ focuses specifically on how a patient’s fear-avoidance beliefs about physical activity and work may affect and contribute to his/her low back pain (i.e. the cognitive/affective components of pain that are differentiated from specific tissue damage, injury, and nociception) and resulting disability.
Self-reported questionnaire consisting of 16 questions scaled from 0 to 6 (maximum score of 96; higher score indicates fear avoidance behaviors). The first 5 questions pertain to physical activity while the remaining 11 pertain to work. The Physical Activity subscale (FABQ-PA, range: 0 to 24) is the sum of items 2-5; the Work subscale (FABQ-W, range: 0 to 42) is the sum of items 6, 7, 9-12, and 15.

Waddell, Gordon, Newton, Mary, Henderson, Iain, Somerville, Douglas, & Main, Chris J. (1993). A Fear-Avoidance Beliefs Questionnaire (FABQ) and the role of fear-avoidance beliefs in chronic low back pain and disability. Pain, 52(2), 157-168.
George Georgoudis, George Papathanasiou, Panagiotis Spiropoulos, Kostantinos Katsoulakis, Cognitive assessment of musculoskeletal pain with a newly validated Greek version of the Fear-Avoidance Beliefs Questionnaire (FABQ), European Journal of Pain 11 (2007) 341–351.