Table 1.

Two-sided Wilcoxon rank-sum test for seizures with and without PGES.

Parameter	No PGES mean ± standard deviation (median, range)	PGES mean ± standard deviation (median, range)	p-value
Total seizure duration (seconds)	143.1 ± 84.0 (123, 38–455)	128.0 ± 78.5 (109.5, 57–516)	0.136
Duration of convulsion (seconds)	76.6 ± 44.1 (67, 16–324)	73.94 ± 27.6 (69, 38–216)	0.544
Duration of tonic phase (seconds)	21.5 ± 9.1 (19, 6–60)	21.9 ± 10.0 (20, 4–56)	0.892
Ictal/postictal ETCO2 peak (mm Hg)	55.7 ± 13.8 (54, 36–94)	64.4 ± 15.3 (61, 44–98)	0.011
ETCO2 change from preictal baseline (mm Hg)	17.6 ± 12.8 (15, 2–50)	28.4 ± 14.1 (25, 5–54)	0.003
Duration of ETCO2 elevation above preictal baseline (seconds)	188.3 ± 432.4 (72, 2–2298)	353.3 ± 390.6 (181, 11–1473)	0.031
Oxygen saturation nadir (%)	76.3 ± 9.9 (77, 50–98)	72.3 ± 11.5 (75, 43–93)	0.046
Duration of oxygen desaturation (seconds)	93.7 ± 82.2 (79, 4–620)	115.8 ± 110.1 (93, 8–712)	0.186
Duration of postictal immobility (seconds)	139.1 ± 411.4 (46, 0–3156)	200.5 ± 295.7 (76.5, -11–1192)	< 0.001