Table 2.

Descriptive statistics for sleep study indices in Wolfram syndrome patients

Index	Mean # normal / # abnormal	SD	Minimum	Maximum	N
Overall Apnea-Hypopnea Index	5.6 children: 0 / 4 adults: 12 / 5	5.3	0	22	21
Obstructive Apnea-Hypopnea Index	3.4	3.2	0.4	10.7	21
Obstructive Apnea Index	0.2	0.7	0	3	21
Central Apnea Index	2.0	3.6	0	17	21
Mixed Apnea Index	0.2	0.3	0	1	21
Hypopnea Index	3.2	3.0	0	10.6	21
Oxygen Desaturation Index	3.5	4.5	0	15.8	21

SD Standard deviation