Table 2

Scanning sequences of all participants (n = 197), by group

	Group, no. (%)^*

Parameter	CUD, n = 80	NCUD, n = 33	Control, n = 84	Statistic	p value
Pixel spacing, mean ± SD, mm^†	0.84 ± 0.2	0.79 ± 0.2	0.96 ± 0.1	Welch t_2,65 = 28.51	< 0.001
TR, mean ± SD (range), ms	9.6 ± 0.3 (9.0–9.8)	9.6 ± 0.3 (9.0–9.8)	9.6 ± 0.2 (9.0–9.7)	Welch t_2,73 = 0.001	0.99
TE, mean ± SD (range), ms	4.4 ± 0.4 (3.5–4.6)	4.4 ± 0.4 (3.7–4.6)	4.5 ± 0.3 (3.5–4.6)	Welch t_2,81 = 3.13	0.049
Slice thickness, mm				χ²₂ = 7.99	0.018
1.0	16 (20.0)	8 (24.2)	6 (7.1)
1.2	64 (80.0)	24 (72.7)	78 (92.9)
Flip angle of 8°	80 (100)	33 (100)	84 (100)

CUD = cannabis use disorder; NCUD = no cannabis use disorder; SD = standard deviation; TE = echo time; TR = repetition time.
↵* Unless otherwise indicated.
↵† Pixel spacing is the same in both dimensions (i.e., x and y).