Impact of a geriatric intervention conducted in nursing homes on inappropriate prescriptions of antipsychotics.

Purpose: To study the effect of a quality assurance approach in a nursing home, with or without the intervention of a geriatrician, on the potentially inappropriate prescription of antipsychotics (PIPA) at 18 months; and to identify the factors associated with PIPA after 18 months of intervention (T18).

Methods: We used data from a multicentre individually tailored controlled trial (IQUARE study). The study population comprised residents included in the IQUARE study with at least one potentially inappropriate prescription of antipsychotics at baseline (T0) who were still in nursing home at T18 (n = 636; nursing homes = 175). The control group received individual feedback from the quality assurance audit performed at baseline. The intervention group also had at least 5 collaborative work meetings with a geriatrician over an 18-month period. We used a multilevel logistic regression model.

Results: The rates of inappropriate antipsychotic drug prescribing were 66.5% and 45.2% at T0 and T18, respectively. This decrease in the rate of PIPA is significant (p < 0.001). A significant decrease was found within each group: in the intervention arm (68.1% at T0 vs. 44.6% at T18; p < 0.001) and in the control arm (65.2% at T0 vs. 45.6% at T18; p < 0.001). Multivariate analysis did not highlight any statistically significant association between living in a nursing home having received an intervention and PIPA at T18.

Conclusions: Collaborative work meetings with a geriatrician does not provide significant added value to a global quality assurance approach towards PIPA. Individual feedback to each nursing home appears to have a substantial impact on decreasing PIPA.