A randomized study of telephonic care support in populations at risk for musculoskeletal preference-sensitive surgeries

Table 5 180 Days all health coach communications per 1,000 members

	Intervention arm	Control arm	Unadjusted differences		Odds ration modeled difference^‡	P value
	n = 13,901	n = 10,266	Count	Percent	(95% Wald CI)
Overall	272.42	125.46	146.96	117.1%	66.97%(58.78% to 75.15%)	<.0001
	n = 5,286	n = 3,035
Preference-Sensitive Back Surgery	238.17	130.8	107.37	82.1%	45.26%(30.28% to 60.24%)	<.0001
	n = 8,615	n = 7,231
Preference-Sensitive Joint Surgery	293.44	123.21	170.23	138.2%	75.59%(65.76% to 85.43%)	<.0001

‡Zero inflated Poisson regression - using number of Communications in prior 12 months as Zero inflation factor. Odds ratio adjusted for age category, gender, study wave, preference-sensitive condition (overall model only), prior year’s facility, physician, pharmacy and ancillary costs.

ISSN: 1472-6947