Histogram

Visit Number vs REM Sleep Latency: the interval between the first sleep epoch and REM sleep excluding wake
N Mean StdDev Median Min Max Unknown Total
Baseline 453 149.4 ± 48.7 147.0 45.0 334.0 - 453
Follow-up 407 148.7 ± 48.4 147.0 47.0 337.0 46 453