Clinician and patient barriers to the recognition of insomnia in family practice: a narrative summary of reported literature analysed using the theoretical domains framework

Table 3 Classification of insomnia: Important features^a

Features	Classification	Clinical note(s)	Further classification or notes
Duration of symptoms
	Acute/Short-term (ICD-3)	Symptoms last < 3 months	Typically lasts 1 night to a few weeks. May result from illness or a circadian rhythm disturbance such as jet-lag
	Chronic (ICD-3)/Insomnia disorder (DSM-5)	Symptoms last > 3 months	Usually trouble sleeping is reported 3+ nights for > 3 months
Timing
	Onset	Falling asleep takes > 30 min
	Maintenance	Interruptions lasting more than 30–45 min are experienced during the night
	Early termination	Waking earlier than intended & unable to resume sleep
Severity
	Mild	Almost nightly complaint	little or no impairment on social or occupational functions
	Moderate	Nightly complaint	Mild-moderate impairment on social/occupational functions
	Severe	Nightly complaint	Severe impact on social/occupational functions

ISSN: 2731-4553