The Athens Insomnia Scale (AIS) is a clinical calculator used to assess the severity of insomnia in adults. It is a self-assessment psychometric instrument designed to quantify sleep difficulty based on the ICD-10 criteria. The AIS is particularly useful in both clinical practice and research settings for diagnosing insomnia, evaluating the severity of insomnia, and monitoring treatment response. 

The AIS consists of eight items: the first five pertain to sleep induction, awakenings during the night, final awakening, total sleep duration, and sleep quality, while the last three refer to well-being, functioning capacity, and sleepiness during the day. Each item is rated on a 0-3 scale, with higher scores indicating more severe insomnia.

There are no specific exclusion criteria for the AIS, but it is not designed for use in children or adolescents. Additionally, it may not be as effective in individuals with certain medical conditions or psychiatric disorders that could affect sleep, such as sleep apnea or major depressive disorder.

Athens Insomnia Scale (AIS)

# Criteria
 ## Sleep induction (the time takes to fall asleep after turning off the lights)
A. No problem (+0)
B. Slightly delayed (+1)
C. Markedly delayed (+2)
D. Very delayed or did not sleep at all (+3)
## Nocturnal awakenings
E. No problem (+0)
F. Minor problem (+1)
G. Considerable problem (+2)
H. Serious problem or did not sleep at all (+3)
## Final awakening earlier than desired
I. Not earlier (+0)
J. A little earlier (+1)
K. Markedly earlier (+2)
L. Much earlier or did not sleep at all (+3)
## Total sleep duration
M. Sufficient (+0)
N. Slightly insufficient (+1)
O. Markedly insufficient (+2)
P. Very insufficient or did not sleep at all (+3)
## Overall sleep quality (regardless of the length)
Q. Satisfactory (+0)
R. Slightly unsatisfactory (+1)
S. Markedly unsatisfactory (+2)
T. Very unsatisfactory or did not sleep at all (+3)
## Daytime sense of well-being
U. Normal (+0)
V. Slightly decreased (+1)
W. Markedly decreased (+2)
X. Very decreased (+3)
## Daytime functioning (physical and mental)
Y. Normal (+0)
Z. Slightly decreased (+1)
AA. Markedly decreased (+2)
AB. Very decreased (+3)
## Daytime sleepiness
AC. None (+0)
AD. Mild (+1)
AE. Considerable (+2)
AF. Intense (+3)

# Conditions
- score >= 6
- true
- score == 0