Table 2.

Correlation between CSF concentrations of synapse markers and demographic parameters.

	SNAP25tot			SNAP‐25aa40			SYT-1
	FEP	HC	FEP + HC	FEP	HC	FEP + HC	FEP	HC	FEP+ HC
Age	r =-0.03	r =-0.10	r =-0.09	r = 0.10	r = 0. 03	r = 0.16	r = -0.12	r = 0.05	r = -0.11
	P = 0.87	P = 0.67	P = 0.47	P = 0.53	P = 0.89	P = 0.90	P = 0.43	P = 0.83	P = 0.38
Gender	r = -0.04	r = 0.20	r = 0.03	r = -0.04	r = 0. 20	r = 0.02	r = 0.02	r = 0.20	r = 0.07
	P = 0.80	P = 0.37	P = 0.83	P = 0.78	P = 0.40	P = 0.86	P = 0.89	P = 0.40	P = 0.57
BMI	r = -0.17	r = 0.06	r=-0.12	r = -0.08	r = 0. 08	r=-0.05	r = -0.20	r = 0.08	r = -0.13
	P = 0.27	P = 0.80	P = 0.34	P = 0.63	P = 0.76	P = 0.70	P = 0.20	P = 0.73	P = 0.32
Use of nicotinea	P = 0.59	n/a	n/a	P = 0.23	n/a	n/a	P = 0.69	n/a	n/a
Use of antipsychoticsa	P = 0.46	n/a	n/a	P = 0.15	n/a	n/a	P = 0.50	n/a	n/a

^aUnpaired t-test otherwise Pearson correlation.HC, healthy controls.