Table 3.

Correlations between measures of Fn/QoL and hypothesized determinants of Fn/QoL

Variable	Age	Gender	Migraine days	Migraine episodes	Severity of associated symptoms‡	Migraine severity§	Catastrophizing (PCS)	Anxiety (BAI)	Depression (BDI)	Mood/anxiety diagnosis
MSQL, 2.1	−0.06	0.12	0.25***	0.80	0.39***	0.31***	0.43***	0.30***	0.31***	0.19**
HDI	−0.02	0.09	0.21**	0.17*	0.38***	0.23**	0.57***	0.35***	0.43***	0.28***
MOS SF-36	0.01	−0.10	−0.11	−0.04	−0.28***	−0.16*	−0.41***	−0.32***	−0.42***	−0.34***
MIDAS	0.00	0.12	0.35***	0.15*	0.48***	0.40***	0.24***	0.10	0.14*	0.06
DE hours‡	0.11	0.01	0.38***	0.21**	0.53***	0.45***	0.22***	0.14*	0.16*	0.04

All Ns = 232, except for MOS, HDI, MIDAS and MSQ, for which N = 230.

^†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.