Figure 4.

Percentage of sleep onset responders over 6 months. Participants with missing information owing to early withdrawal or other reasons are considered as nonresponders in the analysis. Missing responders did not have an sSOL value for the visit owing to missing data, that is, early withdrawal from the study or incomplete diary data. Two-sided 95% confidence interval (CI) was based on normal approximation. p value is based on Cochran–Mantel–Haenszel test stratified by region and age group. CI, confidence interval; LEM5, lemborexant 5 mg; LEM10, lemborexant 10 mg; PBO, placebo. ^†p < 0.001; ^‡p < 0.01; ^§p < 0.05.