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Table 1 Sample Characteristics [N = 25,621 unique patients]

From: Cost comparison of two approaches to chiropractic care for patients with acute and sub-acute low Back pain care episodes: a cohort study

Cohort of Providers Mean Age in Years by Gender Gender (% Female) Health Plan‡ Region (Urban vs. Rural)† Primary Dx*
ChiroCare Network (CC) (22,066 patients) 47 (females) 48 (males) 55% (n = 12,079) 70% Private
30% Public
65% (Urban)
32% (Rural)
3% (Missing)
85% Biomechanical Lesions
9% Other Dorsopathies
3% Sprains
3% Strains
Centers of Excellence (3555 patients) 48 (females
49 (males)
59% (n = 2079) 68% Private
32%Public
86% (Urban)
14% (Rural)
78% Biomechanical Lesions
14% Other Dorsopathies
6% Sprains
2% Strains
  1. Note. the ‘Over 90’ age category is not reflected in patient mean age; ‡ Significant difference in Health Plan between the two Cohorts χ2 = 8.34, p = .004; †Significant difference between the two Cohorts on Region; χ2 = 533.9, p < .001; *Significant difference between the two Cohorts on Primary Dx (based on first visit) χ2 = 139.67, p < .001