. 2020 Dec 14;28:68. doi: 10.1186/s12998-020-00356-z

Table 1.

Sample Characteristics [N = 25,621 unique patients]

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

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

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