Poor sleep quality in migraine and probable migraine: a population study

Table 4 Analysis^a of contributing factors related to the total PSQI score in participants with probable migraine

Factor	Unstandardized coefficients		Standardized coefficients	T	p value	Tolerance	VIF
Factor	B	SE	β	T	p value	Tolerance	VIF
Age	−0.086	0.085	−0.046	−1.019	0.309	0.810	1.235
Sex	−0.177	0.202	−0.036	−0.877	0.381	0.969	1.032
Size of residential area	−0.086	0.157	−0.022	− 0.548	0.584	0.988	1.012
Educational level	−0.082	0.131	−0.028	−0.629	0.529	0.792	1.262
Anxiety (GAS score ≥ 5)	0.231	0.052	0.230	4.438	< 0.001	0.602	1.660
Depression (PHQ-9 score ≥ 10)	0.230	0.027	0.426	8.471	< 0.001	0.640	1.563
Headache frequency per month	0.039	0.018	0.090	2.166	0.031	0.928	1.077
VAS score for headache intensity	0.088	0.056	0.065	1.556	0.121	0.923	1.083

PSQI Pittsburgh Sleep Quality Index, SE standard error, VIF variation inflation factor, GAS Goldberg Anxiety Scale, PHQ Patient Health Questionnaire, VAS visual analogue scale
Independent variables included sociodemographic variables (age, sex, size of residential areas, and education level), anxiety (GAS score ≥ 5), depression (PHQ-9 score ≥ 10), headache frequency per month, and VAS score for headache intensity, whereas total PSQI score was included as the dependent variable
^amultivariate linear regression: R² = 0.194, adjusted R² = 0.139

ISSN: 1129-2377