Symptoms	6wk (n=1442)	3mo (n=1415)	6mo (n=1321)	9mo (n=1193)	12mo (n=1158)
Sleep disturbances	921 (64.5)	729 (53.2)	613 (48.0)	498 (44.3)	480 (44.4)
Tiredness	845 (59.2)	721 (52.7)	573 (45.1)	457 (40.7)	426 (39.4)
Dizziness	554 (38.9)	441 (32.2)	358 (28.2)	290 (25.8)	275 (25.4)
Forgetfulness	468 (32.8)	443 (32.2)	378 (29.8)	310 (27.6)	288 (26.6)
Depression	463 (27.0)	371 (21.6)	280 (16.3)	224 (13.1)	209 (12.2)
Vision problems	276 (19.3)	232 (16.9)	208 (16.4)	178 (15.9)	156 (14.4)
Hearing problems	167 (11.7)	165 (12.1)	150 (11.8)	126 (11.2)	111 (10.3)
Headache∗	540 (38.8)	373 (27.4)	305 (23.9)	234 (20.7)	207 (18.6)
Neck pain∗	706 (50.0)	508 (36.9)	394 (30.7)	327 (28.5)	283 (25.4)
Mid back pain∗	265 (18.6)	175 (12.7)	129 (10.0)	97 (8.4)	87 (7.8)
Low back pain∗	487 (34.7)	376 (27.4)	273 (21.4)	248 (21.7)	209 (18.8)

NOTE. Values are presented as n (%).

∗ ≥5 on the NRS.