Table 3.

Findings from the blink reflex in COVID-19 patients and healthy subjects.

			Patients	Healthy controls
Latency, ms	Right stimulation	R1	11.1 ± 1.0; 9.5–13.1	11.0 ± 1.1; 7.9–12.1
		iR2	32.2 ± 3.2; 25.9–36.5	32.2 ± 3.9; 23.3–38.3
		cR2	33.5 ± 3.0; 28.3–37.6	33.3 ± 4.2; 24.5–41.6
	Left stimulation	R1	11.1 ± 1.2; 9.2–13.2	10.8 ± 1.1; 8.9–12.1
		iR2	32.5 ± 3.8; 26.4–40.7	32.2 ± 4.0; 22.5–37.0
		cR2	32.7 ± 4.2; 25.1–41.0	34.1 ± 4.4; 23.7–40.4
Amplitude, μV	Right stimulation	R1	227.5 ± 128.3; 96.4–458.1*	115.0 ± 100.2; 21.4–336.0
		iR2	224.3 ± 89.1; 109.7–378.6	168.3 ± 86.7; 5.4–303.6
		cR2	168.3 ± 86.3; 45.2–406.5	154.9 ± 107.3; 35.7–396.4
	Left stimulation	R1	193.1 ± 108.1; 35.5–419.4	134.3 ± 84.9; 17.9–307.1
		iR2	205.5 ± 92.9; 72.9–361.3	213.6 ± 98.2; 66.1–357.1
		cR2	189.2 ± 79.1; 72.6–354.8	150.3 ± 58.6; 51.8–221.4
Duration, ms	Right stimulation	R1	8.1 ± 1.4; 6.3–12.0	7.7 ± 1.4; 5.1–9.9
		iR2	44.1 ± 6.4; 36.0–59.3**	37.3 ± 4.6; 30.3–45.4
		cR2	42.3 ± 6.7; 33.1–57.5*	36.3 ± 6.6; 26.0–48.5
	Left stimulation	R1	8.0 ± 1.1; 6.3–10.2	8.0 ± 1.8; 5.2–12.1
		iR2	41.7 ± 4.3; 35.8–48.5	41.9 ± 3.9; 36.4–51.1
		cR2	41.8 ± 3.7; 34.4–47.1	40.0 ± 5.0; 1.5–49.0

Mean values ± SD and 95% confidence intervals are showed. The 95% confidence intervals recorded in the healthy controls correspond to the normative value range.

^*p < 0.05,

^**p < 0.01.

iR2, ipsilateral R2; cR2, contralateral R2.