We use cookies and other tools to enhance your experience on our website and to analyze our web traffic.
For more information about these cookies and the data collected, please refer to our Privacy Policy.

Nulliparous Pregnancy Outcomes Study Monitoring Mothers-to-be

Name Label Folder
ttldursp_f1t3
Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type III home sleep apnea test
Total Sleep Duration: the interval between sleep onset time and lights on/out-bed time while the participant is asleep from type III home sleep apnea test

Conventionally this variable would be called total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
ttldurws_f1t3
Wake After Sleep Onset: the total duration between sleep onset and lights-on/out-bed time while being awake from type III home sleep apnea test
Wake After Sleep Onset: the total duration between sleep onset and lights-on/out-bed time while being awake from type III home sleep apnea test Sleep Monitoring/Polysomnography/Sleep Architecture
ttleffbd_f1t3
Sleep Efficiency: the proportion of sleep duration in in-bed period from type III home sleep apnea test
Sleep Efficiency: the proportion of sleep duration in in-bed period from type III home sleep apnea test

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep, while in-bed period is the interval between lights off/in-bed time and lights on/out-bed time. Conventionally, this variable could be described as the ratio between total sleep time (TST) and time in bed (TIB).

Sleep Monitoring/Polysomnography/Sleep Architecture
ttlprdbd_f1t3
Total In-Bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type III home sleep apnea test
Total In-Bed Period: the interval between lights out/in-bed time and lights off/out-bed time from type III home sleep apnea test

Conventionally this variable would be called time in bed (TIB).

Sleep Monitoring/Polysomnography/Sleep Architecture
begtimbd_f1t3
Clock time when the participant is in bed or lights are out from type III home sleep apnea test
Clock time when the participant is in bed or lights are out from type III home sleep apnea test Sleep Monitoring/Polysomnography/Sleep Architecture
begtimrd_f1t3
Clock time when the recording (study) starts from type III home sleep apnea test
Clock time when the recording (study) starts from type III home sleep apnea test Sleep Monitoring/Polysomnography/Sleep Architecture
begtimsp_f1t3
Sleep Onset: Clock time when the participant falls asleep from type III home sleep apnea test
Sleep Onset: Clock time when the participant falls asleep from type III home sleep apnea test

Conventionally this variable would be called the start of total sleep time (TST).

Sleep Monitoring/Polysomnography/Sleep Architecture
endtimbd_f1t3
Clock time when the participant is out of bed or lights are on from type III home sleep apnea test
Clock time when the participant is out of bed or lights are on from type III home sleep apnea test Sleep Monitoring/Polysomnography/Sleep Architecture
endtimrd_f1t3
Clock time when the recording (study) ends from type III home sleep apnea test
Clock time when the recording (study) ends from type III home sleep apnea test Sleep Monitoring/Polysomnography/Sleep Architecture
pctdursp_pb_f1t3
Percentage of sleep duration in supine position from type III home sleep apnea test
Percentage of sleep duration in supine position from type III home sleep apnea test Sleep Monitoring/Polysomnography/Sleep Architecture
pctdursp_po_f1t3
Percentage of sleep duration in non-supine position from type III home sleep apnea test
Percentage of sleep duration in non-supine position from type III home sleep apnea test

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep

Sleep Monitoring/Polysomnography/Sleep Architecture
phrnumsf_f1t3
Number of sleep to awake shifts per hour from type III home sleep apnea test
Number of sleep to awake shifts per hour from type III home sleep apnea test Sleep Monitoring/Polysomnography/Sleep Architecture
ttldursp_pb_f1t3
Total sleep duration (supine) from type III home sleep apnea test
Total sleep duration (supine) from type III home sleep apnea test

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep

Sleep Monitoring/Polysomnography/Sleep Architecture
ttldursp_po_f1t3
Total sleep duration (non-supine) from type III home sleep apnea test
Total sleep duration (non-supine) from type III home sleep apnea test

Sleep duration is the interval between sleep onset time and lights on/out-bed time while asleep

Sleep Monitoring/Polysomnography/Sleep Architecture
ttleffsp_f1t3
Sleep Maintenance Efficiency: the proportion of sleep duration in sleep period from type III home sleep apnea test
Sleep Maintenance Efficiency: the proportion of sleep duration in sleep period from type III home sleep apnea test

Sleep duration (i.e. total sleep time, TST) is the interval between sleep onset and sleep offset time while asleep. Sleep period is just the interval between sleep onset and sleep offset time.

Sleep Monitoring/Polysomnography/Sleep Architecture
ttllatsp_f1t3
Sleep Latency: the interval between lights-out/in-bed time and sleep onset from type III home sleep apnea test
Sleep Latency: the interval between lights-out/in-bed time and sleep onset from type III home sleep apnea test Sleep Monitoring/Polysomnography/Sleep Architecture
ttlprdrd_f1t3
Total Recording Period: the interval between recording start and end time from type III home sleep apnea test
Total Recording Period: the interval between recording start and end time from type III home sleep apnea test

Study length (epoch 1 to last epoch- minutes)

Sleep Monitoring/Polysomnography/Sleep Architecture
ttlprdsp_f1t3
Total Sleep Period: the interval between sleep onset time and lights on/out-bed time from type III home sleep apnea test
Total Sleep Period: the interval between sleep onset time and lights on/out-bed time from type III home sleep apnea test

Total sleep period = total sleep duration + wake after sleep onset

Sleep Monitoring/Polysomnography/Sleep Architecture