Skip to main content
. Author manuscript; available in PMC: 2023 Aug 2.
Published in final edited form as: Psychol Serv. 2020 Oct 22;19(1):134–145. doi: 10.1037/ser0000494

Table 1.

Demographics and Clinical Characteristics

Characteristic M/% SD Range
Age 60.40   9.20    44–77
Sex (male) 85%
Race
 Caucasian 60%
 African American 30%
 Other 10%
Treatment type
 Medication 70%
 CBTI 25%
 Sleep apnea 20%
ISI 19.35   4.42    11–27
 Subthreshold 20%
 Moderately severe 45%
 Severe 35%
DBAS   5.78   1.30 3.56–9.31
QIDS-SR 10.35   4.30   4–17
 None 15%
 Mild 40%
 Moderate 25%
 Severe 20%
PCL-5 29.75 16.24   3–65
 PTSD 15%

Note. CBTI = Cognitive Behavioral Treatment for Insomnia; ISI = Insomnia Severity Index; DBAS = Dysfunctional Beliefs and Attitudes about Sleep; QIDS-SR = Quick Inventory of Depressive Symptomatology; PCL-5 = Posttraumatic Stress Disorder Check List for DSM-5; PTSD = posttraumatic stress disorder.