Table 3.

Associations between measures of SA and average values of white matter parameters in tracts of interest.

TOI	Side	WM parameter	Effect of social anxiety(z-score)			Effect of FNE			Heritability estimate
			β	SE	p	β	SE	p	h2	SE
ILF	L	FA	0.001	0.001	0.58	3.44E-04	2.18E-04	0.11	0.30	0.02
		AD	−4.46E-07	1.98E-06	0.82	−1.37E-07	4.21E-07	0.74	0.99	0.48
		MD	−9.58E-07	1.52E-06	0.53	−3.38E-07	3.25E-07	0.30	0.90	0.13
		RD	−1.20E-06	1.45E-06	0.41	−4.17E-07	3.11E-07	0.18	0.66	0.34
	R	FA	0.001	0.001	0.28	1.89E-04	1.77E-04	0.29	0.41	0.09
		AD	−3.46E-07	1.29E-06	0.79	−1.15E-07	2.61E-07	0.66	0.87	0.07
		MD	−1.09E-06	9.70E-07	0.26	−2.57E-07	1.95E-07	0.19	0.79	0.05
		RD	−1.35E-06	1.05E-06	0.20	−2.66E-07	2.19E-07	0.23	0.57	0.00
SLF	L	FA	0.002	0.001	0.03	3.67E-04	1.92E-04	0.06	0.41	0.05
		AD	1.15E-06	1.33E-06	0.39	2.76E-08	2.75E-07	0.92	0.73	0.21
		MD	−7.33E-07	1.13E-06	0.51	−3.05E-07	2.34E-07	0.19	0.70	0.01
		RD	−1.68E-06	1.21E-06	0.17	−4.57E-07	2.55E-07	0.07	0.59	0.03
	R	FA	0.001	0.001	0.07	3.58E-04	1.76E-04	0.04	0.31	0.02
		AD	1.21E-07	1.14E-06	0.92	2.03E-08	2.26E-07	0.93	0.84	0.05
		MD	−1.02E-06	9.14E-07	0.27	−3.15E-07	1.84E-07	0.09	0.78	0.05
		RD	−1.56E-06	1.04E-06	0.13	−4.39E-07	2.16E-07	0.04	0.58	0.04
UF	L	FA	0	0.001	0.79	2.68E-04	3.19E-04	0.40	0.37	0.05
		AD	1.16E-06	2.14E-06	0.59	−1.43E-07	4.67E-07	0.76	0.53	0.00
		MD	2.66E-07	1.56E-06	0.86	−2.84E-07	3.38E-07	0.40	0.51	0.01
		RD	−5.01E-08	1.68E-06	0.98	−3.58E-07	3.59E-07	0.32	0.51	0.10
	R	FA	0	0.001	0.67	1.69E-04	2.48E-04	0.50	0.61	0.02
		AD	1.05E-06	1.74E-06	0.55	2.69E-07	3.77E-07	0.48	0.26	0.01
		MD	−1.53E-07	9.36E-07	0.87	−6.65E-09	1.91E-07	0.97	0.73	0.01
		RD	−4.98E-07	1.11E-06	0.65	−1.12E-07	2.27E-07	0.62	0.72	0.14

TOI: tract of interest; WM: white matter; ILF: inferior longitudinal fasciculus; SLF: superior longitudinal fasciculus; UF: uncinate fasciculus; L: left; R: right; FA: fractional anisotropy; AD: axial diffusivity; MD: mean diffusivity; RD: radial diffusivity; FNE: fear of negative evaluation; SE: standard error; h²: heritability estimate.