Table 2 Lifetime prevalence of asthma symptoms by ISAAC video questionnaire
From: The prevalence of childhood asthma in China: a systematic review
Author, year | Place of data collection | Year of data collection | Sample size | Age group (years) | Prevalence (%) | ||||
|---|---|---|---|---|---|---|---|---|---|
| Â | Â | Â | Â | Â | wheeze at rest | wheeze after exercise | night waking with wheeze | night waking with cough | severe asthma attack |
Leung R [14], 1997 | Hong Kong | 1994−1995 | 4665 | 13−14 | 13.7 | 21.5 | 5.5 | 29.8 | 9.7 |
Chen YZ [19], 1998 | Beijing | 1994−1995 | 4167 | 13−14 | 5.9 | 7.7 | 1.4 | 13.8 | 2.7 |
| Â | Guangzhou | Â | 3855 | Â | 3.2 | 9.2 | 1.5 | 11.7 | 2.2 |
| Â | Urumqi | Â | 3207 | Â | 2.4 | 7.0 | 0.7 | 11.5 | 2.5 |
| Â | Shanghai | Â | 3483 | Â | 3.4 | 6.0 | 2.0 | 4.2 | 2.8 |
| Â | Chongqing | Â | 4296 | Â | 2.5 | 8.8 | 1.0 | 6.8 | 1.6 |
Wang HY [22], 2006 | Guangzhou | 2001 | 3516 | 13−14 | 5.9 | 14.1 | 1.9 | 10.2 | 2.7 |
Yangzong [23], 2006 | Tingri & Sakya (rural Tibet) | 2004 | 2026 | 12−14 | 2.8 | 4.1 | 2.2 | 3.8 | 1.4 |
Droma Y [24], 2007 | Lhasa (urban Tibet) | 2001 | 3196 | 13−14 | 0.3 | 1.2 | 0.03 | 1.4 | 0.3 |