Factors | Two factors | Three factors without item ‘sleep’ | Three factor-1 | Three factor-2 | |||||
---|---|---|---|---|---|---|---|---|---|
Original study [11] | Aisyaturridha et al. [41] | Ger et al. [21] | Saxena et al. [46] | Zeng et al. [43] | Wu et al. [42] | Klepstad et al. [17] | Atkinson et al. [45] | Cleeland et al. [24] | |
Severity | WLAN | WLAN | WLAN | WLAN | WLAN | WLAN | WLAN | WLAN | WLAN |
Activity | WAW, sleep, REM | WAW, sleep, REM | WAW, sleep, REM | WAW | WAW | WAW | WAW | WAW | WAW, sleep |
Affective | REM | REM | REM | REM, sleep | REM, sleep | REM |