Table 3 Multivariate logistic analysis to identify independent variables affecting increase in migraine frequency and severity (n = 1018)

0.769 (0.491–1.203)

0.250

0.643 (0.419–0.986)

0.043^*

0.984 (0.965–1.003)

0.089

0.978 (0.960–0.996)

0.018^*

1.012 (0.715–1.810)

0.040^*

1.271 (0.872–1.853)

0.002^*

0.579 (0.418–0.804)

0.001^*

1.655 (1.204–2.274)

0.002^*

11.603 (8.403–16.023)

< 0.001^*

8.179 (5.963–11.218)

< 0.001^*

2.113 (1.375–3.248)

0.001^*

1.562 (1.041–2.344)

0.031^*

1.702 (1.178–2.459)

0.005^*

1.778 (1.247–2.536)

0.001^*

1.257 (0.823–1.918)

0.290

1.558 (1.043–2.329)

0.030^*

1.465 (1.049–2.045)

0.071

1.361 (0.984–1.882)

0.063

1.356 (1.169–2.368)

0.005^*

1.241 (0.906–1.699)

0.001^*

1.983 (0.898–2.730)

0.001^*

1.776 (0.898–2.938)

0.001^*

1.257 (0.898–1.761)

0.183

1.223 (0.898–1.412)

0.234