Table 2. Open in new tab Definitions and...

Table 2.

Definitions and examples of sleep-related concepts.

Concept category	Definition	Example
Snoring	Snoring or snoring synonyms	“snoring”
(Yes or No)		“snored”
Napping	Napping during daytime	“napping”
(Yes or No)		“doze”
Sleep problem	Sleep problem	“sleep disorder”
(Yes or No)	Specific sleep disorder/condition/disease mentioned in the note	“insomnia”
		“hypersomnia”
Bad sleep quality	Any mention related to bad sleep quality in the note	“sleeplessness”
(Yes or No)		“couldn’t sleep during night”
		“staying up all night”
Daytime sleepiness	Sleepiness during daytime	“sleep a lot throughout the day”
(Yes or No)		“excessive daytime sleepiness”
Night wakings	Night time wakings	“frequent night waking”
(Yes or No)		“waking up in the middle”
		“waking up 3-5 times”
Sleep duration	Duration of night time sleep	“sleeps 4-5 hours” —> Short
(Short ≤6 h, Medium 6-8 h, or Long ≥ 8 h)		“sleep more than 12 hours” —> Long

Concept category	Definition	Example
Snoring	Snoring or snoring synonyms	“snoring”
(Yes or No)		“snored”
Napping	Napping during daytime	“napping”
(Yes or No)		“doze”
Sleep problem	Sleep problem	“sleep disorder”
(Yes or No)	Specific sleep disorder/condition/disease mentioned in the note	“insomnia”
		“hypersomnia”
Bad sleep quality	Any mention related to bad sleep quality in the note	“sleeplessness”
(Yes or No)		“couldn’t sleep during night”
		“staying up all night”
Daytime sleepiness	Sleepiness during daytime	“sleep a lot throughout the day”
(Yes or No)		“excessive daytime sleepiness”
Night wakings	Night time wakings	“frequent night waking”
(Yes or No)		“waking up in the middle”
		“waking up 3-5 times”
Sleep duration	Duration of night time sleep	“sleeps 4-5 hours” —> Short
(Short ≤6 h, Medium 6-8 h, or Long ≥ 8 h)		“sleep more than 12 hours” —> Long