Table 4.

Multivariate logistic regression analysis of clinical and demographics variables associated with secondary headache in pregnant women

Variable	OR (95% CI)	p value
Complications during current pregnancy	2.2 (0.7–6.8)	0.155
Prior primary headache	0.5 (0.2–1.3)	0.147
Prior secondary headache	6.6 (1.3–33.1)	0.021*
Side predominance	0.5 (0.2–1.3)	0.141
Visual disturbancea	0.3 (0.1–1.0)	0.048*
Sensory disturbanceb	0.4 (0.1–1.4)	0.154
Elevated blood pressure	7.2 (2.3–22.6)	0.001*
Fever	12.1 (1.3–111.0)	0.028*
Abnormal neurological examination referable to acute symptoms	9.9 (2.7–36.3)	0.001*

* = statistical significant (p < 0.05)

^a = 58.3% scintillating scotoma, 31.3% blurred vision

^b = 73.8% unilateral hypoesthesia, 17.6% unilateral paresthesia