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Table 2 Odds ratios (ORs) of prior migraines among patients with a brain tumor and the controls (n = 22,650)

From: Association of migraines with brain tumors: a nationwide population-based study

Presence of prior migraines

Total sample n = 22,650

Patients with a brain tumor n = 11,325

Controls n = 11,325

No.

%

No.

%

No.

%

Yes

789

3.48

554

4.89

235

2.08

No

21,861

96.52

10,771

95.11

11,090

97.92

OR a (95% CI)

2.45*** (2.09~ 2.96)

1.00

  1. Notes: aConditional logistic regression conditioned on patient’s age, sex, monthly income, geographic region, and urbanization level; *** p < 0.001
  2. CI confidence interval