Table 2.

Primary continuous VSS-C models after outcome-level quality control.

Outcome	n	β (95% CI), mm3 per point	p	BH-FDR-adjusted P	Partial R2
Anterior-superior	39	0.165 (0.064 to 0.266)	0.0021	0.013	0.246
Anterior-inferior	37	0.018 (−0.108 to 0.145)	0.768	0.909	0.003
Superior tubular	39	0.231 (−0.248 to 0.709)	0.334	0.501	0.027
Inferior tubular	39	0.498 (−0.133 to 1.130)	0.118	0.288	0.07
Posterior	39	0.024 (−0.392 to 0.439)	0.909	0.909	0
Whole hypothalamus	39	0.971 (−0.348 to 2.290)	0.144	0.288	0.062

Each model adjusted for age, eTIV, and baseline MMD. β is the adjusted volume difference in mm³ per 1-point higher VSS-C total score. BH-FDR correction was applied across all six outcomes. CI, confidence interval; eTIV, estimated total intracranial volume; MMD, monthly migraine days; VSS-C, Chinese version of the Vertigo Symptom Scale.