Table 1.
The triggers of childhood asthma in Hangzhou
| Triggers | Percentage (%) |
|---|---|
| Daily activities | |
| Respiratory tract infection | 85.1 |
| Cold air | 53.1 |
| Exercise | 14.6a |
| Tied | 7.1 |
| Emotional changes | 3.8a |
| Inhaled causes | |
| House dust | 20.3a |
| Pollen | 11.1a |
| Renovation works in the home | 8.7a |
| Smoke | 7.8 |
| Paint | 6.8 |
| Moldy smell | 6.8 |
| Odor of cooking oil | 6.2 |
| Mosquito–repellent incense | 5.1a |
| Pets | 3.3a |
| Perfume | 3.0 |
| Disinfectant | 0.9 |
| Food and medicine | |
| Fish and shrimp | 14.0 |
| Egg | 4.2 |
| Milk | 3.5 |
| Peanut | 2.0 |
| Other nuts | 1.5 |
| Fruit | 1.2 |
| Beans | 1.1 |
| Wheat | 0.6 |
| Vegetables | 0.6 |
| Aspirin | 0.3 |
| Others | 3.8 |
aIn children 6 years and older, those triggers happened more than that in children 5 years and younger (P < 0.05)