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. 2013 Feb 7;13:21. doi: 10.1186/1472-6947-13-21

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.