Symptoms | At the beginning χ2 | After 1 year χ2 | After 2 year χ2 |
---|---|---|---|
Nasal congestion | 10,299 | 8732 | 10,835 |
Nasal pruritus | 5601 | 8877 | 8737 |
Rhinorrhea | 8119 | 10,001 | 12,464 |
Sneezing | 6407 | 10,605 | 9821 |
Cough | 8100 | 5322 | 16,028 |
Night cough | 9114 | 5177 | 12,666 |
Chest breathless | 5656 | 2154 | 9680 |
Wheezing | 10,664 | 12,294 | 12,362 |