Citation

Engleman HM, Hirst WS, Douglas NJ. J. Sleep Res. 1997; 6(4): 272-275.

Affiliation

Department of Medicine (RIE), University of Edinburgh, UK.

Copyright

(Copyright © 1997, European Sleep Research Society, Publisher John Wiley and Sons)

DOI

unavailable

PMID

9493528

Abstract

Under reporting of symptoms by patients with sleep apnoea/hypopnoea syndrome (SAHS) has been reported anecdotally, but investigation of the prevalence or determinants of this is limited. To assess this, repeated ratings in 99 patients with sleep apnoea/hypopnoea syndrome of pre-treatment Epworth sleepiness score, unintended napping, driving impairment and mood were obtained, first at presentation and then after treatment with continuous positive airway pressure (CPAP) therapy of median 22 (range 2-70) weeks duration. Median Epworth score for pre-treatment sleepiness rose from 12 (range 0-24) initially to 14 (range 5-24) retrospectively (P<0.0001). More patients initially under-rated Epworth score (67%) than over-rated (29%; P<0.001). 'False negative' cases with an initially 'normal' (< or = 10) and retrospectively 'sleepy' (> or = 11) Epworth score comprised 24% of all patients and 62% of initially 'normal' scorers. Unintended napping behaviour also was rated as significantly more severe on retrospective assessment (P<0.001). Driving impairment due to sleepiness was initially reported by 23% of all drivers and retrospectively by 37% (P=0.01), with 25% of initial deniers retrospectively admitting compromised driving ability before continuous positive airway pressure. No polysomnographic predictors of symptom under reporting were found (P>0.1). These results suggest a high prevalence of symptom minimization before treatment in patients with sleep apnoea/hypopnoea syndrome.

Language: en