Table 1. ENIGMA Epilepsy Working Group demographics.

Demographic breakdown of patient-specific subcohorts with site-matched controls, including age (in years), age at onset of epilepsy (in years), sex, side of seizure focus (patients with TLE only), and mean duration of illness (in years). Healthy controls from sites that did not have TLE (or IGE) patients were excluded from analyses comparing TLE (or IGE) to controls.

Case-control subcohorts	Age (means ± SD)	Age at onset (means ± SD)	Sex (male/female)	Side of focus (L/R)	Duration of illness (means ± SD)
TLE (n = 732)	38.56 ± 10.61	16.07 ± 12.27	329/403	391/341	22.74 ± 14.06*
HC (n = 1418)	33.76 ± 10.54	–	643/775	–	–
IGE (n = 289)	32.06 ± 10.85	16.84 ± 11.25	111/178	–	15.09 ± 11.70*
HC (n = 1075)	31.41 ± 9.59	–	454/621	–	–

*Information available in 695 of 732 patients with TLE and 250 of 289 patients with IGE.