Table 2.

Comparison in the arachnoid thickness, including whole floor and collagen fiber, among different outcome groups after microvascular decompression in one week.

Factors	Disappearance	Significant remission	Remission	P-value
Full thickness of the arachnoid membrane (μm)	86.14 ± 3.34	90.60 ± 5.65	89.00 ± 2.78	0.343
Thickness of arachnoid collagen fibers (μm)	51.85 ± 5.23	49.2 ± 3.78	52.50 ± 2.46	0.365

The p-value is the probability value of the overall difference in the ANOVA S-N-K test among the three outcome groups. Normality test p > 0.05.