Table 4.

Summary of regression analyses for variables predicting Fn/QoL in frequent migraine patients

	MSQL β	HDI β	DE hours† β	MOS β	MIDAS β
Predictor variables
Age	–	–	0.13*	–	–
Gender	–	–	–	–	–
Severity of associated symptoms‡	0.24**	0.30***	0.38***	−0.23***	0.35***
Migraine severity§	0.14		0.20**		0.17*
Anxiety (BAI)	0.15**	–	–	–	–
Catastrophizing (PCS)	0.34***	0.50***	0.16**	−0.32***	0.18***
PRIME-MD diagnosis	–	0.18***	–	−0.28***	–
Adjusted R2	0.32	0.44	0.33	0.28	0.27
F(d.f.)	27.44***	60.90***	28.84***	30.82***	29.08***
	(4, 225)	(3, 226)	(4, 227)	(3, 226)	(3, 226)

^†DE hours (disability equivalent hours) = hours missed + 0.5(hours impaired at least 50%).

^‡Severity of associated symptoms = severity scores for phonophobia, photophobia and nausea summed across headaches and normalized to 30 days.

^§Migraine severity = average headache severity (1 = mild to 3 = severe) × migraine days.

^*P ≤ 0.05;

^**P ≤ 0.01;

^***P ≤ 0.001.