Stata do file for the manuscript: <b>Association of oral health-related subjective quality of life and severity of negative psychotic symptoms of treatment-resistant schizophrenia: A cross-sectional study in Croatia</b>

Stata do file for the data from 130 patients, 18-65 years, both genders, diagnosed with treatment resistant shcizophrenia, with PANSS positive symptoms &lt; 20, PANSS negative symptoms ≥ 24, treated in Psychiatric Clinic Sveti Ivan, Zagreb, Croatia from November 4, 2022 to May 10, 2023. The study protocol was approved by the ethics committees of the Sveti Ivan Psychiatric Clinic and the School of Dental Medicine, University of Zagreb. Written informed consent was obtained from all participants. The study protocol was not preregistered, but was used for the first author’s Ph.D. thesis, so it was completed and stored at the School of Dental Medicine, University of Zagreb, before data collection began.SNS is Self-Evaluation of Negative Symptoms scale (Dollfus S, Mach C, Morello R. Self-Evaluation of Negative Symptoms: A Novel Tool to Assess Negative Symptoms. Schizophr Bull. 2016;42(3):571–8.). OHIP is the Croatian version of the Oral Health Impact Profile questionnaire-49 (OHIP-49) (Slade GD, Spencer AJ. Development and evaluation of the Oral Health Impact Profile. Community Dent Health. 1994;11(1):3–11.; Petricević N, Celebić A, Papić M, Rener-Sitar K. The Croatian version of the Oral Health Impact Profile Questionnaire. Coll Antropol. 2009;33(3):841–7.).