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Table 1 Pre-treatment characteristics of the total study sample, complete, and partial cases

From: Targeting self-efficacy more important than dysfunctional behavioral cognitions in patients with longstanding chronic low back pain; a longitudinal study

Pre-treatment characteristics Total sample
(n = 524)
Complete cases
(n = 457)
Partial cases
(n = 67)
Sociodemographic
 Age, mean (SD) in years 45.4 (± 9.6) 45.5 (± 9.6) 44.5 (± 10.3)
 Gender, Female n (%), 303 (57.8) 270 (59.1) 33 (49.3)
 Employment status, Yes n (%) 356 (67.9) 317 (69.4) 39 (58.2)
CLBP History
 Duration of LBP, mean (SD) in years 12.5 (±10.8) 12.4 (±10.8) 13.4 (±10.7)
 Pain medication, Yes n (%) 454 (86.6) 397 (86.9) 57 (85.1)
 Previous surgery, Yes n (%) 169 (32.3) 142 (31.1) 27 (40.3)
 Current pain intensity (NPRS), mean (SD) 60.7 (± 21.1) 32.5 (± 10.8) 31.2 (± 12.1)
Primary outcome
 Functional status (ODI), mean (SD) 41.4 (± 14.1) 41.1 (± 14.1) 43.9 (± 15.8)
Secondary outcomes
 Self-efficacy (PSEQ), mean (SD) 32.4 (± 10.8) 32.5 (± 10.8) 31.2 (± 12.1)
Dysfunctional behavioural cognitions
 Catastrophizing (PCS), mean (SD) 22.9 (± 8.9) 22.9 (± 8.8) 24.0 (± 9.5)
 Fear of movement (TSK), mean (SD) 39.6 (± 6.4) 39.6 (± 6.4) 40.7 (± 6.7)
  1. ODI oswestry disability index; PSEQ pain self-efficacy questionnaire; PCS pain catastrophizing scale; TSK tampa scale for kinesiophobia; NPRS numeric pain rating scale