TY - JOUR
T1 - Insomnia Severity and Degree of Dysfunction
T2 - What Is to Be Learned When These Domains are Discordant?
AU - Boyle, Julia T.
AU - Vargas, Ivan
AU - Rosenfield, Bradly
AU - Grandner, Michael A.
AU - Perlis, Michael L.
N1 - Publisher Copyright:
© 2021 Taylor & Francis Group, LLC.
PY - 2022
Y1 - 2022
N2 - Objective/Background: Illness severity and resultant dysfunction are often linearly related and tightly coupled (concordant). Some percentage of individuals, however, exhibit discordant associations (high illness severity and low dysfunction [HL] or low illness severity and high dysfunction [LH]). In the present study, a sample of subjects with insomnia complaints were evaluated to determine what percentage of subjects exhibited discordant associations. Participants: Archival data were drawn from a community-based sample (n = 4,680; 61.8% female; Ages 18–105). Methods: Median splits were calculated for illness severity and daytime dysfunction and each individual was typed as High (H) or Low (L) for the concordant (HH and LL) and discordant domains (HL and LH). Results: Given this typology, 61% were classified as concordant and 39% were classified as discordant. Of these, 38% were sub-typed as HH, 23% as LL, 26% as LH, and 13% as HL. Conclusions: We propose that some of the discordance may be ascribable to a mismatch between sleep need and sleep ability. Those “who need a lot, may suffer a lot, in the face of only a little (LH)”, whereas those “who need a little, may suffer only a little, in the face of a lot (HL)”.
AB - Objective/Background: Illness severity and resultant dysfunction are often linearly related and tightly coupled (concordant). Some percentage of individuals, however, exhibit discordant associations (high illness severity and low dysfunction [HL] or low illness severity and high dysfunction [LH]). In the present study, a sample of subjects with insomnia complaints were evaluated to determine what percentage of subjects exhibited discordant associations. Participants: Archival data were drawn from a community-based sample (n = 4,680; 61.8% female; Ages 18–105). Methods: Median splits were calculated for illness severity and daytime dysfunction and each individual was typed as High (H) or Low (L) for the concordant (HH and LL) and discordant domains (HL and LH). Results: Given this typology, 61% were classified as concordant and 39% were classified as discordant. Of these, 38% were sub-typed as HH, 23% as LL, 26% as LH, and 13% as HL. Conclusions: We propose that some of the discordance may be ascribable to a mismatch between sleep need and sleep ability. Those “who need a lot, may suffer a lot, in the face of only a little (LH)”, whereas those “who need a little, may suffer only a little, in the face of a lot (HL)”.
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U2 - 10.1080/15402002.2021.1895794
DO - 10.1080/15402002.2021.1895794
M3 - Article
C2 - 33818194
AN - SCOPUS:85103623509
SN - 1540-2002
VL - 20
SP - 164
EP - 172
JO - Behavioral Sleep Medicine
JF - Behavioral Sleep Medicine
IS - 2
ER -