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Table 7 Distribution of variation in the number of physical therapy treatment sessions in patients with non-specific LBP among different levels (practices, therapists, and patients). Results of step two in the analyses (n = 1,733)

From: What factors explain the number of physical therapy treatment sessions in patients referred with low back pain; a multilevel analysis

  Variance (SE) % of explained variance in relation to the intercept-only model
Practice level 2.38 (0.83) 22.2
Therapist level 0.13 (0.43) 93.2
Patient level 34.48 (1.20) 8.7
Total 36.98   13.4