Related Variables
| clinical_mslt |
Indicator of Clinical MSLT (vs Research)
Research MSLTs were administered from 1989- 2003. Clinical MSLTs were administered from 2001-2011. Sleep protocols and number of Naps differs by type of MSLT. |
Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| mslt |
MSLT Score
Average of first four naps |
Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| nap5_rem |
MSLT: Latency to REM (Nap 5)
Clinical MSLT only: the 5th nap was only conducted if the participant had REM sleep in one of the first 4 naps. |
Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| nap5_sl |
MSLT: Nap 5 Sleep Latency
Sleep latency was scored by two scorers. It is the average of the two scores. Clinical MSLT only: the 5th nap was only conducted if the participant had REM sleep in one of the first 4 naps. |
Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| nap5_sleep |
MSLT: Volunteer Reported Falling Asleep (Nap 5)
Clinical MSLT only: the 5th nap was only conducted if the participant had REM sleep in one of the first 4 naps. |
Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| nap5_time |
MSLT: Start Time of Nap 5
Start time was entered into the database for Clinical MSLT only. Clinical MSLT only: the 5th nap was only conducted if the participant had REM sleep in one of the first 4 naps. |
Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| naps_yn1 | Diary: Naps on Day n1 before MSLT | Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| naps_yn2 | Diary: Naps on Day n2 before MSLT | Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| naps_yn3 | Diary: Naps on Day n3 before MSLT | Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| naps_yn4 | Diary: Naps on Day n4 before MSLT | Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| naps_yn5 | Diary: Naps on Day n5 before MSLT | Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| naps_yn6 | Diary: Naps on Day n6 before MSLT | Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| naps_yn7 | Diary: Naps on Day n7 before MSLT | Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| sleepy5 |
MSLT: Stanford Sleepiness Scale Prior to Nap 5 (Clinical MSLT only)
Clinical MSLT only: the 5th nap was only conducted if the participant had REM sleep in one of the first 4 naps. |
Sleep Monitoring/Other Sleep Tests/Multiple Sleep Latency Test (MSLT) | |
| totsleepnap |
Self-reported daily sleep duration in main sleep and naps combined
Calculated - Weighted average of weekday and weekend self-reported sleep duration in main sleeps and naps combined |
Sleep Questionnaires/Sleep Habits |