PHS67 Rasch Model Validation of a Peer Relations Scale for People Treated for Psychoactive Substance Use Disorder

Abstract

treated with docetaxel-based chemotherapy. EQ-5D and FACT-P data were collected for a subset of patients at baseline and throughout the study until treatment discontinuation. We compared three statistical mapping techniques to estimate patients' EQ-5D index scores determined using the UK-tariff: (a) linear regression estimated by generalized estimating equation (GEE) algorithms; (b) two-part model (TPM) combining logistic and linear regression estimated by GEE algorithms; (c) separate mapping algorithms for patients with poor health defined as FACT-P Յ78.To select the best model specification, four different sets of explanatory variables were compared. The models were fitted to the full dataset and cross-validated using a 10-fold in-sample cross-validation. The variance explained by the model was assessed by the marginal R2. Model performance was assessed by comparing predicted and observed mean EQ-5D scores, the mean absolute error (MAE) and the root mean squared Error (RMSE). RESULTS: Values for both FACT-P and EQ-5D were available for 234 patients. The TPM model including the FACT-P sub-domain scores and demographic variables was the best-performing model (marginal R2 ϭ 0.689) providing the most accurate predictions (MAE ϭ 0.125; RMSE ϭ 0.170).

Frequency of Depressive Illness among Caregivers of Drug Addicted Patients

“…On the off chance that misery and anxiety symptoms are display at the same time, there's a significant chance of addiction Anxiety can result from a drug habit. At the starting of the withdrawal process, uneasiness is common in around a quarter of people, and can last up to two to three years as portion of the post-traumatic stress disorder (PTSD) 5,6 .…”