/  Assessment Tools

Sleep Condition Indicator

(SCI)

Research Group
CBPI
Contacts Daniel Ruivo Marques

TITLE OF THE PORTUGUESE VERSION

Indicador de Condição de Sono

ORIGINAL VERSION

Espie et al. (2014)

PORTUGUESE VERSION

Marques et al. (2023)

GENERAL DESCRIPTION

The SCI is a brief eight-item scale intended to assess insomnia disorder according to the DSM-5 criteria. The SCI comprises Likert-type response categories scored 0–4. Higher scores denote better sleep. Total score ranges from 0–32. In the original study, a score of ≤16 was suggested to identify individuals likely to suffer from insomnia (Espie et al., 2014).

REFERENCES

  • Marques, D. R., Clemente, V., Allen Gomes, A., Dias, S. F., Miller, C. B., Espie, C. A., & de Azevedo, M. H. P. (2024). The Sleep Condition Indicator (SCI): Psychometric properties of the European Portuguese version. Journal of Sleep Research, e14305. Advance online publication. https://doi.org/10.1111/jsr.14305

  • Espie, C. A., Kyle, S. D., Hames, P., Gardani, M., Fleming, L., & Cape, J. (2014). The Sleep Condition Indicator: A clinical screening tool to evaluate insomnia disorder. BMJ Open, 4(3), e004183. https://doi.org/10.1136/bmjopen-2013-004183

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