269 Clustering in Central Disorders of Hypersomnolence Supplementary Table 1: Continued. Variable name Definition NT1 (n=752) NT2 (n=200) IH (n=126) Normalized outcome options n Median (IQR) / Percentage n Median (IQR) / Percentage n Median (IQR) / Percentage MSLT – Mean NREM1 latency Mean NREM1 latency during multiple sleep latency testing (4 or 5 naps in total) 512 3.0 (1.6-4.8) 149 4.4 (2.3-6.9) 74 6.6 (4.0-8.1) 0-1 = 0.3-15 minutes MSLT – Mean NREM2 latency Mean NREM2 latency during multiple sleep latency testing (4 or 5 naps in total) 142 8.3 (4.5-11.7) 42 8.5 (4.7-10.5) 49 9.4 (7.6-11.8) 0-1 = 1.5-17 minutes Subjective sleep latency Subjective sleep latency 751 5.0 (2.0-7.5) 200 5.0 (3.0-10.0) 124 5.0 (3.0-10.0) 0-1 = 0-60 minutes Subject NS length Subjective nocturnal sleep length change 142 1.0 (1.0-4.0) 31 1.8 (0.5-5.2) 24 1.6 (0.5-4.6) 0-1 = 0.5-10 hours Subjective daily sleep length Subjective sleep length per 24 hours 754 7.3 (6.4-8.0) 200 7.8 (7.1-8.5) 126 7.8 (7.1-8.8) 0-1 = 5.9-10.6 hours Change sleep length since start EDS Subjective change in sleep length since start of excessive daytime sleepiness 361 Shorter: 26.6% Unchanged: 58.7% Longer: 14.7% 87 Shorter: 4.6% Unchanged: 70.1% Longer: 25.3% 53 Shorter: 7.5% Unchanged: 49.1% Longer: 43.4% 0 = Shorter, 0.5 = Unchanged, 1 = Longer 9
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