Validation of the Japanese version of the Ford Insomnia Response to Stress Test and the association of sleep reactivity with trait anxiety and insomnia

Shun Nakajima, Isa Okajima, Taeko Sasai, Mina Kobayashi, Naomichi Furudate, Christopher L. Drake, Thomas Roth, Yuichi Inoue

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Objective: Our study was conducted to validate the Japanese version of the Ford Insomnia Response to Stress Test (FIRST-J) and to clarify the association of the measure with trait anxiety and insomnia in healthy subjects and insomnia patients. Methods: We studied 161 healthy subjects and 177 insomnia patients who completed the FIRST-J, Pittsburgh Sleep Quality Index (PSQI), Athens Insomnia Scale (AIS), and State-Trait Anxiety Inventory-Trait (STAI). The healthy subjects and the insomnia patients were classified, respectively, into two groups with high FIRST-J and low FIRST-J scores (divided by the median value of healthy subjects). Results: Cronbach α coefficients of the FIRST-J in the insomnia patients and healthy subjects were 0.89 and 0.87, respectively. Factor analysis revealed that the FIRST-J had a single-factor structure. The FIRST-J score significantly correlated with all other measures in the healthy subjects, though the score only correlated with the score of the STAI in the insomnia patients. The healthy subjects with high FIRST-J scores showed higher scores of the AIS and STAI than those with low FIRST-J scores. Furthermore, insomnia patients had a higher total score of the FIRST-J than the healthy subjects. Conclusions: The FIRST-J is an important tool for assessing vulnerability to insomnia.

Original languageEnglish
Pages (from-to)196-202
Number of pages7
JournalSleep Medicine
Volume15
Issue number2
DOIs
Publication statusPublished - 2014 Feb
Externally publishedYes

Fingerprint

Sleep Initiation and Maintenance Disorders
Exercise Test
Sleep
Anxiety
Healthy Volunteers
Equipment and Supplies
Statistical Factor Analysis

Keywords

  • Anxiety
  • Ford insomnia response to stress test
  • Insomnia
  • Scale
  • Sleep reactivity
  • Stress

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Validation of the Japanese version of the Ford Insomnia Response to Stress Test and the association of sleep reactivity with trait anxiety and insomnia. / Nakajima, Shun; Okajima, Isa; Sasai, Taeko; Kobayashi, Mina; Furudate, Naomichi; Drake, Christopher L.; Roth, Thomas; Inoue, Yuichi.

In: Sleep Medicine, Vol. 15, No. 2, 02.2014, p. 196-202.

Research output: Contribution to journalArticle

Nakajima, Shun ; Okajima, Isa ; Sasai, Taeko ; Kobayashi, Mina ; Furudate, Naomichi ; Drake, Christopher L. ; Roth, Thomas ; Inoue, Yuichi. / Validation of the Japanese version of the Ford Insomnia Response to Stress Test and the association of sleep reactivity with trait anxiety and insomnia. In: Sleep Medicine. 2014 ; Vol. 15, No. 2. pp. 196-202.
@article{ee0bf220b74e435dbd3edb45c2396cf5,
title = "Validation of the Japanese version of the Ford Insomnia Response to Stress Test and the association of sleep reactivity with trait anxiety and insomnia",
abstract = "Objective: Our study was conducted to validate the Japanese version of the Ford Insomnia Response to Stress Test (FIRST-J) and to clarify the association of the measure with trait anxiety and insomnia in healthy subjects and insomnia patients. Methods: We studied 161 healthy subjects and 177 insomnia patients who completed the FIRST-J, Pittsburgh Sleep Quality Index (PSQI), Athens Insomnia Scale (AIS), and State-Trait Anxiety Inventory-Trait (STAI). The healthy subjects and the insomnia patients were classified, respectively, into two groups with high FIRST-J and low FIRST-J scores (divided by the median value of healthy subjects). Results: Cronbach α coefficients of the FIRST-J in the insomnia patients and healthy subjects were 0.89 and 0.87, respectively. Factor analysis revealed that the FIRST-J had a single-factor structure. The FIRST-J score significantly correlated with all other measures in the healthy subjects, though the score only correlated with the score of the STAI in the insomnia patients. The healthy subjects with high FIRST-J scores showed higher scores of the AIS and STAI than those with low FIRST-J scores. Furthermore, insomnia patients had a higher total score of the FIRST-J than the healthy subjects. Conclusions: The FIRST-J is an important tool for assessing vulnerability to insomnia.",
keywords = "Anxiety, Ford insomnia response to stress test, Insomnia, Scale, Sleep reactivity, Stress",
author = "Shun Nakajima and Isa Okajima and Taeko Sasai and Mina Kobayashi and Naomichi Furudate and Drake, {Christopher L.} and Thomas Roth and Yuichi Inoue",
year = "2014",
month = "2",
doi = "10.1016/j.sleep.2013.09.022",
language = "English",
volume = "15",
pages = "196--202",
journal = "Sleep Medicine",
issn = "1389-9457",
publisher = "Elsevier",
number = "2",

}

TY - JOUR

T1 - Validation of the Japanese version of the Ford Insomnia Response to Stress Test and the association of sleep reactivity with trait anxiety and insomnia

AU - Nakajima, Shun

AU - Okajima, Isa

AU - Sasai, Taeko

AU - Kobayashi, Mina

AU - Furudate, Naomichi

AU - Drake, Christopher L.

AU - Roth, Thomas

AU - Inoue, Yuichi

PY - 2014/2

Y1 - 2014/2

N2 - Objective: Our study was conducted to validate the Japanese version of the Ford Insomnia Response to Stress Test (FIRST-J) and to clarify the association of the measure with trait anxiety and insomnia in healthy subjects and insomnia patients. Methods: We studied 161 healthy subjects and 177 insomnia patients who completed the FIRST-J, Pittsburgh Sleep Quality Index (PSQI), Athens Insomnia Scale (AIS), and State-Trait Anxiety Inventory-Trait (STAI). The healthy subjects and the insomnia patients were classified, respectively, into two groups with high FIRST-J and low FIRST-J scores (divided by the median value of healthy subjects). Results: Cronbach α coefficients of the FIRST-J in the insomnia patients and healthy subjects were 0.89 and 0.87, respectively. Factor analysis revealed that the FIRST-J had a single-factor structure. The FIRST-J score significantly correlated with all other measures in the healthy subjects, though the score only correlated with the score of the STAI in the insomnia patients. The healthy subjects with high FIRST-J scores showed higher scores of the AIS and STAI than those with low FIRST-J scores. Furthermore, insomnia patients had a higher total score of the FIRST-J than the healthy subjects. Conclusions: The FIRST-J is an important tool for assessing vulnerability to insomnia.

AB - Objective: Our study was conducted to validate the Japanese version of the Ford Insomnia Response to Stress Test (FIRST-J) and to clarify the association of the measure with trait anxiety and insomnia in healthy subjects and insomnia patients. Methods: We studied 161 healthy subjects and 177 insomnia patients who completed the FIRST-J, Pittsburgh Sleep Quality Index (PSQI), Athens Insomnia Scale (AIS), and State-Trait Anxiety Inventory-Trait (STAI). The healthy subjects and the insomnia patients were classified, respectively, into two groups with high FIRST-J and low FIRST-J scores (divided by the median value of healthy subjects). Results: Cronbach α coefficients of the FIRST-J in the insomnia patients and healthy subjects were 0.89 and 0.87, respectively. Factor analysis revealed that the FIRST-J had a single-factor structure. The FIRST-J score significantly correlated with all other measures in the healthy subjects, though the score only correlated with the score of the STAI in the insomnia patients. The healthy subjects with high FIRST-J scores showed higher scores of the AIS and STAI than those with low FIRST-J scores. Furthermore, insomnia patients had a higher total score of the FIRST-J than the healthy subjects. Conclusions: The FIRST-J is an important tool for assessing vulnerability to insomnia.

KW - Anxiety

KW - Ford insomnia response to stress test

KW - Insomnia

KW - Scale

KW - Sleep reactivity

KW - Stress

UR - http://www.scopus.com/inward/record.url?scp=84895136384&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84895136384&partnerID=8YFLogxK

U2 - 10.1016/j.sleep.2013.09.022

DO - 10.1016/j.sleep.2013.09.022

M3 - Article

C2 - 24380783

AN - SCOPUS:84895136384

VL - 15

SP - 196

EP - 202

JO - Sleep Medicine

JF - Sleep Medicine

SN - 1389-9457

IS - 2

ER -