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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Am J Geriatr Psychiatry. 2013 Feb 6;22(5):437–441. doi: 10.1016/j.jagp.2013.01.039

Table 2. Key Statistical Findings.

Model Dependent Variable Overall F value P value
3 Factor Model
Predictors:

  1. CDRS,

  2. Age

  3. * CDRS by Age

 Clinical Global Impressions – Suicidal Ideation F(3, 188) = 9.85 < 0.001
Intersept Scale for Suicidal Ideation F(3, 191) = 14.48 < 0.001
**2 Factor Model
Predictors:

  1. CDRS

  2. Age

 Clinical Global Impressions – Suicidal Ideation F(2, 189) = 14.81 < 0.001
Intersept Scale for Suicidal Ideation F(2, 192) = 21.61 < 0.001

CDRS = Calgary Depression Rating Scale

*

the t value for the interaction term in the 3 factor model was not significant

**

in the 2 factor model, with Clinical Global Impression-Scale for Suicidal Ideation scores as the dependent variable, the t value for CDRS was significant: t = 5.4 (p < 0.001); with Intersept Scale for Suicidal Ideation scores as the dependent variable, the t value for CDRS was also significant: t = 6.48 (< 0.001).