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

Table 2 Effect of Clinical and Demographic Factors on Allowed Amount Per Patient Per Episode

Factor/Exposure	Group/Referent	(exp) Allowed Amount	95% CI	p-value	Mean Amounts Group/Referent	95% CI (Mean Amounts) Group/Referent)
Intercept	–	237	231.8–242.3	p < .001	–
Cohort	CoE/Network	0.77	0.75–0.79	p < .001	$252/$326	($246 - $258)/($323 - $330)
Health Plan	Commercial/Gov’t	1.49	1.47–1.52	p < .001	$350/ $235	($345 - $355)/ ($230 - $239)
Region	Urban/Rural	1.23	1.21–1.25	p < .001	$318/$259	($313–$322)/($254 - $264)
Sex	Female/Male	1.04	1.02–1.05	p < .001	$292/$282	($287–$296)/($277–$286)

Note. Dependent Variable = Allowed Amount (positive expenditures modeled; N = 24,330). Exposure variables in this model include: Cohort, Health Plan, Region, and Sex (entered as factors in the GLM). maximum likelihood estimate
Exposure of interest/reference group (variable). Reference (or comparison) group is specified after the forward slash “/”
Mean (allowed) amounts presented for Group/Referent and 95% CIs (for mean allowed amounts) come from the GLM
model’s estimated mean

ISSN: 2045-709X