Measuring onset in first-episode psychosis: The Nottingham Onset Schedule (NOS)

Social network confidants, duration of untreated psychosis and cannabis use in people with first episode psychosis: An exploratory study

“…Once a list of all contacts is established, SNS explores several domains about each of them, including confidant status, frequency of contact with participants (daily, weekly and monthly) and whether the person considered a contact would be missed in case if he/she should be lost and whether relationships were characterized by upset and conflict. DUP was assessed by the Nottingham Onset Schedule‐DUP version (Singh, Cooper, Tarrant, Bagalkote, & Jones, ), a widely used tool, whose reliability and validity are quantitatively comparable to other DUP measurement instruments (Register‐Brown & Hong, ). The DUP measure of interest was the interval (months) between onset of the prodrome and the start of anti‐psychotic medication.…”

“…Routine socio-demographic data were collected. The Social Network Schedule (SNS), a self-report instrument, was used to assess all social contacts during the preceding month (Dunn, O'Driscoll, Dayson, Will, & Leff, 1990 (Singh, Cooper, Tarrant, Bagalkote, & Jones, 2000), a widely used tool, whose reliability and validity are quantitatively comparable to other DUP measurement instruments (Register-Brown & Hong, 2014). The DUP measure of interest was the interval (months) between onset of the prodrome and the start of anti-psychotic medication.…”