Fig. 3
Correlations between brain volumes and sleep apnea index scores in Wolfram syndrome patients. Mixed apnea index (MAI) scores were negatively correlated with (a) ventral pons (rS = − 0.63, p = 0.015), b total pons (rS = − 0.60, p = 0.02, and (c) cerebellar white matter volumes (rS = − 0.55, p = 0.04). d Central apnea index (CAI) scores were positively correlated with cerebellar gray matter volume (rS = 0.62, p = 0.02). No p-value survived multiple comparisons correction