There are currently contradictory findings on whether frequency of having n
ightmares is related to psychopathology. Common drawbacks of many of the st
udies are the use of a single retrospective questionnaire to assess nightma
re frequency and the measurement of stable traits rather than acute stress.
In the present study 124 subjects (males, n = 32; females, n = 92; age 18-
70 years) completed the EPQ-RS, the General Health Questionnaire-30, Gough'
s Creativity Scale and, over 14 days, a contemporaneous log of the incidenc
e of nightmares. The 14-day log method produced a larger estimate of mean n
ightmare frequency (41.7 per year) than is common with retrospective measur
es; there was no significant difference in frequency of nightmares between
males and females. Nightmare frequency correlated significantly with GHQ ac
ute psychopathology (r(sp) = 0.26, p = 0.002), with comparable scores for f
emales (r(sp) = 0.28) and males (r(sp) = 0.23). Females had significant cor
relations of nightmare frequency with age (r(sp) = -0.26, p=0.007), dream r
ecall (r(sp) = 0.32, p=0.001) and EPQ-Lie score (r(sp) = -0.22, p = 0.020),
whereas males did not: following regression analysis only females had sign
ificant determinants of nightmare frequency, these being GHQ acute psychopa
thology (beta = 0.300, p = 0.003) and age (beta = -0.232, p=0.020). Neither
sex had significant correlations of nightmare frequency with creativity, e
xtraversion, neuroticism or psychoticism. (C) 1999 Elsevier Science Ltd. Al
l rights reserved.