inteff command in stata 11.0  (STATA Corporation)

Journal: International Journal of Geriatric Psychiatry

Article Title: Caregiver burden, health utilities, and institutional service use in Alzheimer's Disease

doi: 10.1002/gps.2730

Figure Lengend Snippet: * Derived using the INTEFF command in Stata 11.0 based on logistic regressions without random effects. Two graphs are reported for each of the four HUI-III*caregiver burden interaction models generated. Both plot the predicted probabilities for each observation on the x axis. The first compares the interaction effects calculated using the non-linear method (scatter plot) to those calculated using the linear method (line). The second plots the z-statistics calculated for each observation along with the 95% confidence interval. Those z-statistics falling between −1.96 and +1.96 (the outer two lines) are statistically significant the .05 level.

Article Snippet: Whereas none of the interaction effects in the Burden Interview model achieved statistical significance, a non-negligible number either achieve significance or approach doing so in the Caregiver Distress and Beck Depression inventory models, somewhat fewer in the Caregiver Activity model (see ). fig ft0 fig mode=article f1 fig/graphic|fig/alternatives/graphic mode="anchored" m1 Open in a separate window caption a7 caption a8 Interaction Effects and Z-Statistics with 95% CIs across All Observations * * Derived using the INTEFF command in Stata 11.0 based on logistic regressions without random effects.

Techniques: Derivative Assay, Generated