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. 2017 Jul 17;12(7):e0177008. doi: 10.1371/journal.pone.0177008

Table 1. Descriptive characteristics of study sample.

Variables Low Back Pain Patients (n = 36) Control Patients (n = 32) *P-value
Mean (SD) Range Mean (SD) Range
Age (years) 51.6 (8.7) 40.0–67.0 51.3 (8.6) 40.0–67.0 0.866
Height (cm) 165.47 (4.66) 157.48–175.26 165.95 (5.51) 154.94–175.26 0.699
Number of Back Pain Visits 4.5 (3.0) 2–14 0.0 (0.0) n/a 0.000

* Student's t-test.

Statistical Significance (P < .05).