Table 1.

Distribution of symptoms reported in each session by age group (n=51,473).

Symptom	Age (years), n (%)
	0-18 (n=3914)	19-64 (n=40,923)	65-74 (n=4339)	≥75 (n=2297)
Fever	1912 (48.85)	12,896 (31.51)	993 (22.89)	625 (27.21)
Cold	1489 (38.04)	9584 (23.42)	801 (18.46)	406 (17.68)
Sore throat	1027 (26.24)	10,264 (25.08)	628 (14.47)	305 (13.28)
Cough	881 (22.51)	8540 (20.87)	831 (19.15)	441 (19.20)
Headache	437 (11.17)	4870 (11.90)	280 (6.45)	82 (3.57)
Myalgia	262 (6.69)	4947 (12.09)	643 (14.82)	284 (12.36)
Dispnea	381 (9.73)	4296 (10.50)	362 (8.34)	314 (13.67)
Low blood pressure	93 (2.38)	2612 (6.38)	611 (14.08)	322 (14.02)
Dizziness	301 (7.69)	2504 (6.12)	298 (6.87)	251 (10.93)
Drowsiness	214 (5.47)	2195 (5.36)	269 (6.20)	220 (9.58)
Tachycardia	260 (6.64)	2043 (4.99)	265 (6.11)	138 (6.01)
Nausea	285 (7.28)	1947 (4.76)	157 (3.62)	61 (2.66)