The duration of symptoms (number and percentage of illnesses per system or specific diagnosis) before illnesses were reported (n=403; missing data in 63)
| System | Illness | Same day | 1–3 days before | >3 days before |
|---|---|---|---|---|
| All systems | All illness (n=403) | 197 (48.9) | 184 (45.7) | 22 (5.5) |
| Respiratory | All respiratory system illness (n=133) | 69 (51.9) | 57 (42.9) | 7 (5.3) |
| Acute upper respiratory tract infection (n=70) | 32 (44.0) | 37 (51.4) | 3 (4.2) | |
| Allergic rhinitis (n=21) | 14 (66.7) | 7 (33.3) | – | |
| Digestive | All digestive system illness (n=120) | 66 (55.0) | 49 (40.8) | 5 (4.2) |
| Infective gastro-enteritis (n=57) | 27 (45.8) | 30 (50.8) | 2 (3.4) | |
| Non-infective gastro-enteritis (n=31) | 24 (77.4) | 7 (22.6) | – | |
| Skin and subcutaneous | All skin and subcutaneous illness (n=77) | 24 (31.2) | 45 (58.4) | 8 (10.4) |
| Bacterial skin infection (n=39) | 8 (20.5) | 28 (71.8) | 3 (7.7) | |
| Fungal skin infection (n=6) | 2 (33.3) | 3 (50.0) | 1 (16.7) | |
| Viral skin infection (n=12) | 6 (50.0) | 6 (50.0) | – | |
| Allergic dermatitis (n=7) | 2 (28.6) | 4 (57.1) | 1 (14.3) | |
| Nervous | All nervous system illness (n=19) | 15 (78.9) | 3 (15.8) | 1 (5.3) |
| Headache (n=18) | 15 (83.3) | 2 (11.1) | 1 (5.6) | |
| Mental or behavioural | All mental or behavioural illness (n=18) | 8 (44.4) | 10 (55.6) | – |
| Sleep disorder (n=16) | 7 (43.8) | 9 (56.3) | – | |
| Ears and mastoid | All ear and mastoid illness (n=15) | 2 (13.3) | 13 (86.7) | – |
| Otitis externa or media (n=4) | 1 (25.0) | 3 (75.0) | – | |
| Genitourinary | All genitourinary illness (n=7) | 3 (42.9) | 3 (42.9) | 1 (14.3) |