Skip to main content

Table 2 Subgroup and sensitivity analysis for the prevalence of headaches among patients with epilepsy

From: The epidemiology of headaches among patients with epilepsy: a systematic review and meta-analysis

SubgroupsNo. of studiesPrevalence (%)95% CIHeterogeneity within the study (I2, Q and p-value)
Q-valueI2 (%)P-value
Types of Headache
 Tension type headache (TTH)926.218.9–35.0197.93895.958<  0.01
 Migraine with aura1526.017.5–36.7738.65998.105
 Migraine without aura310.45.20–19.711.06481.924
 Ictal headache (IH)742.226.8–59.2523.95798.664
 Post ictal headache (PIH)743.130.9–56.3348.35297.991
Countries
 Developed650.635.9–65.3142.40096.489<  0.01
 Developing1149.538.1–60.9885.36898.871
Study design
 Cross-sectional1353.439.2–67.0909.64698.681<  0.01
 Cohort337.921.3–57.830.11993.360
 Case-control125.018.0–33.60.0000.000
Gender
 Male733.321.1–48.3235.34997.451<  0.01
 Female763.049.1–75.1197.23296.958