Table 4.

Age-adjusted partial correlations between objective sleep and sleep quality, anxiety and pain thresholds in healthy controls and interictal migraineurs

Objective sleep	Subjective symptoms			Pain thresholds
Controls n=34	Insomnia	PSQIgs	Anxiety	PPT	HPT	CPT
N1 min	0.28	0.15	0.43*	−0.33	−0.12	−0.04
N2 min	−0.12	−0.17	−0.09	−0.20	0.21	0.13
N3 min	−0.27	−0.28	−0.11	0.06	−0.18	−0.13
REM minutes	−0.01	−0.09	0.20	−0.02	−0.14	−0.11
Fast arousals per sleep hour	−0.05	0.12	−0.09	−0.06	0.32	0.31
Slow arousals per sleep hour	−0.06	0.15	−0.31	−0.22	−0.05	−0.08
Interictal
migraineurs, n=33
N1 min	0.25	0.35	0.45*	0.15	−0.01	0.14
N2 min	−0.04	0.16	0.43*	0.27	0.05	0.08
N3 min	−0.01	−0.20	−0.37*	−0.37*	−0.23	−0.34
REM minutes	0.12	−0.08	−0.17	0.01	0.21	0.07
Fast arousals per sleep hour	0.43*	0.32	0.16	0.05	−0.18	−0.16
Slow arousals per sleep hour	0.01	−0.15	−0.05	0.06	−0.39*	−0.41*
P*<0.05, P**<0.01.

Significant differences are emphasized with bold types. *p<0.05.