| No LRTI | RV LRTI | RSV LRTI | RV/RSV LRTI | p-value | |
| Subjects# | 71 | 19 | 17 | 12 | |
| Did your child cough in the first year? | 66 (93) | 19 (100) | 17 (100) | 12 (100) | 0.47 |
| Did your child wheeze in the first year? | 11 (15) | 13 (68) | 8 (47) | 9 (75) | <0.001 |
| Did your child use any medication for a chest problem in the first year? | 17 (24) | 10 (53) | 9 (19) | 7 (58) | 0.008 |
| Bronchodilators, e.g. salbutamol? | 6 (8) | 6 (32) | 6 (35) | 6 (50) | <0.001 |
| Antibiotics? | 13 (18) | 9 (47) | 7 (37) | 6 (50) | 0.01 |
| Preventers, e.g. steroids or montelukast? | 0 (0) | 2 (11) | 0 (0) | 3 (25) | 0.001 |
| Has your child ever been diagnosed with asthma by a doctor? | 0 (0) | 0 (0) | 0 (0) | 1 (8) | 0.10 |
Data are presented as n or n (%), unless otherwise stated. LRTI: lower respiratory tract infection; RV: rhinovirus; RSV: respiratory syncytial virus. #: not all parents completed the questionnaire and those reported responded yes to the question.