Table 4. Comparison of Local Sulcal Index (LSI) between patients with and without history of psychosis for 12 predetermined regions bilaterally.

Abbreviations: n, number; SE, standard error; DoF, degree of freedom.

Region	Outliers	Bipolar with psychosis LSI (estimates)		Bipolar without psychosis LSI (estimates)
	n	Mean	SE	Mean	SE	DoF	F (Group)	Cohen’s d	p	Significant covariates
Left Calcarine	13	0.061	0.004	0.061	0.004	(1,195.3)	0.017	−0.28	0.90	Gender
Left Frontal Medial	12	0.169	0.004	0.171	0.004	(1,54.7)	0.53	−0.08	0.47	Age
Left Parietal Occipital Medial	12	0.138	0.004	0.138	0.005	(1,66.9)	0.09	0.09	0.77	None
Left Sylvian Fissure	11	0.208	0.006	0.210	0.006	(1,74.5)	0.23	−0.06	0.63	Age
Left Intraparietal Fissure	12	0.197	0.004	0.192	0.005	(1,46.8)	2.47	0.26	0.12	Age
Left Occipital	13	0.078	0.003	0.077	0.003	(1,193.0)	0.15	0.06	0.69	Gender
Left Parietal	12	0.045	0.003	0.05	0.004	(1,196.0)	5.91	−0.34	0.02	Age
Left Lateral Prefrontal	10	0.308	0.008	0.309	0.009	(1,181.7)	0.04	−0.18	0.84	Age, Gender
Left Central Sulcus	9	0.086	0.002	0.087	0.002	(1,173.9)	0.44	−0.27	0.51	Age
Left Precentral	9	0.080	0.004	0.083	0.004	(1,170.8)	1.46	−0.28	0.23	Handedness
Left Temporal Basal	10	0.146	0.006	0.142	0.006	(1,195.8)	1.46	0.14	0.23	Gender
Left Temporal Lateral	9	0.253	0.005	0.259	0.005	(1,199.0)	2.42	−0.16	0.12	Age, Handedness
Right Calcarine	12	0.058	0.003	0.061	0.004	(1,61.07)	1.26	−0.18	0.26	Gender
Right Frontal Medial	9	0.168	0.004	0.172	0.005	(1,125.2)	1.79	−0.09	0.18	Age, Gender
Right Parietal Occipital Medial	11	0.134	0.006	0.133	0.006	(1,197.0)	0.09	0.05	0.76	Gender
Right Sylvian Fissure	15	0.203	0.005	0.203	0.005	(1,96.23)	0.02	0.09	0.89	Gender
Right Intraparietal Fissure	13	0.198	0.005	0.197	0.005	(1,40.46)	0.07	0.04	0.79	Age
Right Occipital	8	0.092	0.003	0.094	0.004	(1,198.0)	0.78	−0.07	0.38	Age, Gender
Right Parietal	12	0.045	0.004	0.049	0.004	(1,196.0)	2.43	−0.21	0.12	None
Right Lateral Prefrontal	8	0.307	0.009	0.312	0.010	(1,192.0)	0.51	−0.20	0.47	Age, Gender
Right Central Sulcus	13	0.080	0.002	0.081	0.002	(1,159.5)	0.12	−0.24	0.73	None
Right Precentral	10	0.091	0.004	0.094	0.004	(1,198.0)	1.72	−0.23	0.19	None
Right Temporal Basal	7	0.138	0.006	0.136	0.006	(1,197.9)	0.69	−0.018	0.41	Gender
Right Temporal Lateral	9	0.265	0.005	0.269	0.006	(1,50.19)	0.73	−0.04	0.39	Age, Gender