Figure 3 | Scientific Reports

Figure 3

From: Exploring the clinical features of narcolepsy type 1 versus narcolepsy type 2 from European Narcolepsy Network database with machine learning

Figure 3

Comparisons of mean REM sleep latency between NT1/NT2 patients with the same number of SOREMP. The number of patient of each subgroup is given on the x-axis. P-values are given by Wilcoxon rank sum tests. Please note the error bars are the ones of standard error of mean. Considering the small sample size of NT2 patients, the distributions of the mean REM sleep latency in NT2 patients with 4 and 5 SOREMP may hardly fit normal distribution. So we provide the results of Wilcoxon rank sum test which tests the median rather than the mean of compared groups in the figure.

Back to article page