Figure 1

Interrelationships between clinical variables and Migraine-Specific Quality of Life (MSQoL) score by refined path analysis model. An arrow indicates a direct relationship from variable to another. Numbers denote standardized regression coefficients (beta weights) for each path. If the sign of the coefficient is negative, when the predictor variable score increases by 1 standard deviation, MSQoL score decreases by the number of standard deviations as indicated by the value of the coefficient. All regression coefficients are statistically significant (p<0.01). MIDAS: Migraine Disability Assessment Scale, BDI: Beck Depression Inventory, MSQoL: Migraine-Specific Quality of Life.