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. Author manuscript; available in PMC: 2018 Dec 1.
Published in final edited form as: J Orthop Sports Phys Ther. 2018 Apr 7;48(6):460–475. doi: 10.2519/jospt.2018.7811

Table 6.

Parameters for Individual Predictors of Comorbidity Status

12 Month Comorbidity Change

Completed Cases Estimate Regression Imputed Estimate Inverse Probability
Weighted
Estimate

Intercept −0.16 Intercept −0.34 Intercept −0.38

Age (years) 0.01

Comorbidity (# baseline) −0.79 Comorbidity (# baseline) −0.87 Comorbidity (# baseline) −0.79

OSPRO-ROS+ (13 items) 0.19 OSPRO-ROS+ (13 items) 0.14 OSPRO-ROS+ (13 items) 0.25

Education (reference – High school or lower)
Completed post graduate degree −0.02
Some post-graduate course work −0.03
Graduated from college 0.17
Some college 0.72
Prefer not to answer 4.32
Table Key:
  • OSPRO-ROS+ = Additional 13 items from the long version of the Optimal Screening for Prediction of Referral and Outcome Review of Systems Tool; Comorbidity change was from Charlson and Functional Comorbidity Indices