PMID- 27086249 OWN - NLM STAT- MEDLINE DCOM- 20170102 LR - 20181202 IS - 1872-7123 (Electronic) IS - 0165-1781 (Linking) VI - 238 DP - 2016 Apr 30 TI - Obtaining employment as an anchor for estimating the minimum clinically important difference on the Positive and Negative Syndrome Scale (PANSS) in schizophrenia. PG - 304-309 LID - S0165-1781(16)30259-1 [pii] LID - 10.1016/j.psychres.2016.02.018 [doi] AB - Statistical differences on clinical scales are often used to compare the effectiveness of treatments. However, statistical significance does not necessarily indicate clinical significance. The minimum clinically important difference (MCID) refers to clinically meaningful treatment differences. This study estimates the MCID of the Positive and Negative Syndrome Scale (PANSS) by anchoring the change in scores to an objective clinical outcome: employment. This secondary analysis compared PANSS score change from baseline among 1049 non-working individuals with schizophrenia, who were followed and categorized as either having not worked, worked 1-10 days, or worked >10 days at 15 or 18 months. The difference in change in average PANSS Total scores between participants who did not work and those who worked 1-10 days (4.25 points) and >10 days (8.30) were statistically significant. This study estimates the MCID for the PANSS to be between 4.25 and 8.30 Total points. This study revealed significant differences in PANSS score changes between participants who did and did not work. Using employment, an objective and clinically meaningful change in health status, to determine the MCID of PANSS resulted in estimates lower than previously reported. MCID estimates vary across methods but using objective anchors increases face validity. CI - Published by Elsevier Ireland Ltd. FAU - Leddy-Stacy, Meaghan A AU - Leddy-Stacy MA AD - Department of Psychology, Veterans Affairs Connecticut Health Care System, 950 Campbell Avenue, 116B, West Haven, CT 06510, USA; Department of Psychiatry, Yale University School of Medicine, 300 George St., Suite 901, New Haven, CT 06511, USA. Electronic address: meaghan.leddy@yale.edu. FAU - Rosenheck, Robert AU - Rosenheck R AD - Department of Psychiatry, Yale University School of Medicine, 300 George St., Suite 901, New Haven, CT 06511, USA; Veterans Affairs New England Mental Illness Research, Education and Clinical Centers (MIRECC), 950 Campbell Avenue, West Haven, CT 06510, USA. LA - eng PT - Journal Article DEP - 20160213 PL - Ireland TA - Psychiatry Res JT - Psychiatry research JID - 7911385 RN - 0 (Antipsychotic Agents) SB - IM MH - Adult MH - Antipsychotic Agents/*therapeutic use MH - *Employment, Supported MH - Female MH - Health Status MH - Humans MH - Male MH - Middle Aged MH - Psychiatric Status Rating Scales MH - Rehabilitation, Vocational MH - Reproducibility of Results MH - Schizophrenia/complications/diagnosis/*drug therapy/*rehabilitation MH - *Schizophrenic Psychology MH - Self Concept MH - Treatment Outcome OTO - NOTNLM OT - Clinical trials as topic OT - Employment OT - Psychiatric status rating scales OT - Research design OT - Schizophrenia OT - Treatment outcome EDAT- 2016/04/18 06:00 MHDA- 2017/01/04 06:00 CRDT- 2016/04/18 06:00 PHST- 2015/04/03 00:00 [received] PHST- 2015/10/16 00:00 [revised] PHST- 2016/02/12 00:00 [accepted] PHST- 2016/04/18 06:00 [entrez] PHST- 2016/04/18 06:00 [pubmed] PHST- 2017/01/04 06:00 [medline] AID - S0165-1781(16)30259-1 [pii] AID - 10.1016/j.psychres.2016.02.018 [doi] PST - ppublish SO - Psychiatry Res. 2016 Apr 30;238:304-309. doi: 10.1016/j.psychres.2016.02.018. Epub 2016 Feb 13.