. 2021 Feb 22;23(2):e26107. doi: 10.2196/26107

Table 2.

HRV parameters in participants with and without COVID-19 diagnoses based on SARS-CoV-2 nasal swab PCR tests.

Parameter	Parameter (milliseconds), mean (95% CI)			Difference (95% CI)		P value
	Participants not diagnosed with COVID-19	Participants diagnosed with COVID-19
MESOR^a	43.57 (41.40 to 45.40)	42.46 (38.90 to 45.79)	–1.12 (–4.22 to 1.73)		.46
Amplitude	5.30 (4.97 to 5.65)	1.23 (–1.94 to 3.11)	–4.07 (–7.29 to –2.07)		.006 ^b
Acrophase	–2.44 (–2.49 to –2.39)	–2.23 (–2.22 to –4.24)	0.22 (–1.74 to 2.43)		.80

^aMESOR: midline statistic of rhythm.

^bItalic text indicates statistical significance.