TABLE 5.

Concussion symptoms (SCAT3) and self-perceived health status (SF-36) of the three subgroups in the baseline and post-test assessments.

	High exposure		Low exposure		Control
	Baseline	Post-test	Baseline	Post-test	Baseline	Post-test
Concussion symptoms (SCAT3)
Total symptom score	6.0 ± 4.3	8.0 ± 12.0	7.0 ± 19.0	6.0 ± 4.5	6.5 ± 7.0	10.5 ± 13.8
Subjective health (SF-36)
Physical functioning	100 ± 1.3	100 ± 0.0	100 ± 2.5	100 ± 0.0	100 ± 3.8	100 ± 0.0
Role limitations physical	100 ± 6.3	100 ± 6.3	100 ± 0.0	100 ± 0.0	100 ± 0.0	100 ± 0.0
Role limitations emotional	100 ± 0.0	100 ± 0.0	100 ± 0.0	100 ± 0.0	100 ± 33.0	100 ± 8.3
Energy/fatigue	67.5 ± 18.8	67.5 ± 6.3	70.0 ± 25.0	65.0 ± 10.0	62.5 ± 20.0	67.5 ± 21.3
Emotional wellbeing	79.0 ± 25.0	84.0 ± 26.0	80.0 ± 12.0	80.0 ± 8.0	74.0 ± 20.0	76.0 ± 14.0
Social functioning	100 ± 18.3	87.5 ± 40.3	100 ± 31.0	100 ± 0.0	100 ± 31.3	94.0 ± 25.0
Pain	100 ± 0.0	100 ± 2.5	100 ± 0.0	100 ± 16.0	85.0 ± 24.5	84.0 ± 32.0
General health	85.0 ± 23.8	92.5 ± 13.8	80.0 ± 12.5	80.0 ± 7.5	75.0 ± 31.3	85.0 ± 26.3

Values depicted as median (± IQR). Outcomes were controlled for the number of previous head injuries, educational level, player age at baseline, and years of soccer experience. SCAT3: higher values indicate greater symptom burden (maximum score: 132). SF-36: higher values indicate more favorable level of self-perceived health (maximum score: 100).