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Table 3 Predictors of receiving one or more mental health related physician visit (PCP or Psychiatrist), and of the total number of visits made during the 2-year period

From: A prospective study of mental health care for comorbid depressed mood in older adults with painful osteoarthritis

Model 1: Regression Model with SF-36 Mental Health Score as the Only Independent Variable

Odds of having at least one mental health visit

odds ratio

95% confidence interval

p-value

SF-36 mental health per 10-point deterioration

2.14

1.08 to 4.26

0.031

Predictors of number of visits, given that one has visits

Change in number of mental health visits

95% confidence interval

p-value

SF-36 mental health per 10-point deterioration

25.3%

17.6% to 33.4%

< 0.0001

Model 2: Regression Model for the Effect of SF-36 Mental Health Score, Adjusted for Additional Covariates*

Odds of having at least one mental health visit

odds ratio

95% confidence interval

p-value

SF-36 mental health score per 10-point deterioration

1.63

1.18 to 2.24

0.0027

Female sex (baseline is male)

5.87

1.73 to 20.0

0.0046

Predictors of number of visits, given that one has any visits)

Change in number of mental health visits

95% confidence interval

p-value

SF-36 mental health per 10-point deterioration

22.4%

15.1% to 30.2%

< 0.0001

Urban region (reference is rural)

106%

65.7% to 157%

< 0.0001

Education (reference is < high school graduation)

  

0.046

   High school graduation

13.5%

-10.9% to 44.6%

0.31

   Some post-secondary education

58.0%

12.5% to 122%

0.0082

   Missing

40.6%

-36.8% to 213%

0.40

  1. * Additional covariates that were considered in the regression analysis were: age, sex, number of comorbid conditions, SF-36 general health score, WOMAC total score and pain subscale, education, income, living arrangements, marital status, region, and race. An interaction between age and sex was also included. Interactions between the mental health score and the other variables were included in order to allow the effect of mental health to vary by sub-group. All significant covariates are reported.