. 2020 Jul;7(7):602–610. doi: 10.1016/S2215-0366(20)30147-4

Table 1.

Models of the association of DUP and 6-month PANSS score in the original (NEDEN) and replication (Outlook) datasets

	NEDEN: all participants (n=734)		NEDEN: non-affective psychosis (n=616)		Outlook: all participants (n=194)
	Adjusted R²	AIC	Adjusted R²	AIC	Adjusted R²	AIC
Step change at 4 weeks	0·013	6049	0·004	5089	0·008	1966
Step change at 26 weeks	0·029	6056	0·021	5089	0·002	1966
4 week step + linear effect	0·021	6044	0·018	5085	0·009	1612
Linear effect of DUP	0·021	6057	0·018	5092	0·009	1611
Square root of DUP^*	0·038	6044	0·033	5082	0·026	1608
Log₁₀DUP^*	0·043	6041	0·032	5083	0·040	1605

AIC=Akaike information criterion. DUP=duration of untreated psychosis. PANSS=Positive and Negative Syndrome Scale.

Curvilinear relationships of DUP and 6-month PANSS.