Table 1.
Number of people with sleep disorders n (%) | Applicable to sleep disorder on other scales | Not applicable to sleep disorders on any other scales | Total number | |||
ISI | PSQI | JESS | Sleep metre | |||
ISI (≤8 points) | 6 (75.0) | 2 (25.0) | 8 (100.0) | 0 (0.0) | 8 (100.0) | |
PSQI (≤6 points) | 6 (66.7) | 1 (11.1) | 7 (77.8) | 2 (22.2) | 9 (100.0) | |
JESS (≤11 points) | 2 (100.0) | 1 (50.0) | 2 (100.0) | 0 (0.0) | 2 (100.0) | |
Sleep metre (≤2 points) | 8 (61.5) | 7 (53.8) | 2 (15.4) | 4 (30.8) | 13 (100.0) |
Of the 26 who agreed to participate in the study, 2 could not be evaluated for sleep because they declined immediately after consent.
ISI, Insomnia Severity Index; JESS, Japanese version of Epworth Sleepiness Scale; PSQI, Pittsburgh Sleep Quality Index.