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Table 1 Participant’s baseline characteristics

From: Chronic low back pain clinical outcomes present higher associations with the STarT Back Screening Tool than with physiologic measures: a 12-month cohort study

Characteristic Mean ± SD
Number (female : male) 23 : 30
Age (years) 44.09 ± 13.26 (range : 21 to 60)
Employment  
 Unemployed : worker : retired 3 : 38 : 4
 Housewife : student 1 :7
Weight (kg) 76.19 ± 15.27
Height (m) 1.70 ± 0.09
Body mass index (kg/m2) 26.14 ± 4.36
Duration of symptoms (months) 130.68 ± 112.03 (range : 4 to 360 months)
Reported physical activity by week (hours) 4.33 ± 3.27 (range : 0 to 14 h)
Initial disability (%) 18.38 ± 10.33
Initial fear of movement (/68) 36.42 ± 8.75
Initial pain intensity (%) 27.61 ± 22.94
Prone endurance (s) 57.46 ± 27.10
Lateral endurance (s) 31.73 ± 15.40
Prone MVCa (N) 147.90 ± 64.58
Lateral MVC (N) 112.67 ± 49.93
SBSTb risk group (low : moderate : high) 35 : 11 : 7
  1. aMaximal isometric voluntary contraction
  2. bSTarT Back Screening Tool