The frequency (percentage of all 466 illnesses reported in affected systems) and the incidence (per 1000 player days) of illness in each system and for common specific diagnoses
| System | Illness | Percentage of all illnesses | Incidence (per 1000 player days) |
|---|---|---|---|
| Respiratory | All respiratory system illness (n=144) | 30.9 | 6.4 (5.5–7.3) |
| Acute upper respiratory tract infection (n=74) | 15.9 | 3.3 (2.8–3.8) | |
| Allergic rhinitis (n=21) | 4.5 | 0.9 (0.8–1.1) | |
| Digestive | All digestive system illness (n=128) | 27.5 | 5.6 (4.9–6.6) |
| Infective gastro-enteritis (n=61) | 13.1 | 2.7 (2.3–3.2) | |
| Non-infective gastro-enteritis (n=31) | 6.7 | 1.4 (1.1–1.7) | |
| Skin and subcutaneous tissue | All skin and subcutaneous illness (n=105) | 22.5 | 4.6 (4.0–5.4) |
| Bacterial skin infection (n=44) | 9.4 | 1.9 (1.6–2.3) | |
| Fungal skin infection (n=18) | 3.9 | 0.8 (0.6–1.0) | |
| Viral skin infection (n=14) | 3.0 | 0.6 (0.5–0.8) | |
| Allergic dermatitis (n=12) | 2.6 | 0.5 (0.4–0.6) | |
| Nervous | All nervous system illness (n=21) | 4.5 | 0.9 (0.8–1.1) |
| Headache (n=19) | 4.1 | 0.8 (0.7–1.0) | |
| Mental or behavioural | All mental or behavioural illness (n=20) | 4.3 | 0.9 (0.7–1.1) |
| Sleep disorder (n=18) | 3.9 | 0.8 (0.7–1.0) | |
| Ears and mastoid | All ear and mastoid illness (n=16) | 3.4 | 0.7 (0.6–0.9) |
| Otitis externa or media (n=9) | 1.9 | 0.3 (0.2–0.4) | |
| Genitourinary | All genitourinary illness (n=13) | 2.8 | 0.6 (0.5–0.7) |