Table 2.

Demographic, clinical, respiratory variables at time of testing and clinical course of the mild group.

Patient	Genre	Age	Days of symptoms	Symptoms suggesting phrenic nerve damage			Respiratory variables		Clinical course
				Ventilation disturbances	Costal pain	Hiccups	Oxygen Saturation	Supplemental Oxygen
1	M	76	7	No	No	No	95%	No	Good
2	M	85	9	No	No	No	97%	No	Good
3	M	43	7	No	No	No	98%	No	Good
4	F	69	8	No	No	No	96%	NC 4 L	Good
5	F	48	11	Yes	No	No	99%	NC 2 L	Good
6	M	54	11	No	No	No	96%	No	Good
7	M	31	6	No	No	No	96%	No	Good
8	M	68	17	Yes	No	No	92%	NC 4 L	ICU during 6 days -> Good at discharge
9	M	41	6	Yes	No	No	95%	No	Good
10	F	59	8	No	No	No	95%	NC 2 L	Good

In one patient (number 9), we performed only nerve conduction of both phrenic nerves performing sonography during the hospital admission. MEP = Motor Evoked Potential, Dif = Difference, M = Male, F= Female, NC = Nasal Cannula, ICU = Intensive Care Unit.