Demographic data, detection of SARS-CoV-2 IgG and clinical history from February 2020 of Swiss adolescents (18–19 years of age) at military fitness-for-duty evaluation
| All | IgG-positive | IgG-negative | P value | |
| n | 301 | 10 | 291 | |
| Gender, male | 286 (95) | 10 (100) | 281 (97) | |
| Clinical history | ||||
| Upper respiratory symptoms | 151 (50) | 7 (70) | 144 (49) | NS |
| Lower respiratory symptoms | 9 (3.0) | 1 (10) | 8 (2.7) | NS |
| Hyposmia | 23 (7.6) | 3 (30) | 20 (6.9) | <0.05 |
| Diarrhoea | 66 (22) | 4 (40) | 62 (21) | NS |
| Fever | 87 (29) | 5 (50) | 82 (28) | NS |
| Asthenia | 80 (27) | 6 (60) | 74 (25) | <0.05 |
| Muscle ache | 41 (14) | 5 (50) | 36 (12) | <0.01 |
| None of the above | 121 (40) | 2 (20) | 119 (41) | NS |
Data are presented as absolute frequency (and percentage).
NS, not significant.