Table 1.
Demographic characteristics of the children surveyed in the 3rd national childhood asthma surveya.
| Full survey (n, total) | Asthmatic patients (n [% of full-survey population])c | |
|---|---|---|
| Number of patients | 463,982 | 13,992 (3.02%) |
| Gender | ||
| Male | 241,811 | 8,495 (3.51%) |
| Female | 222,160 | 5,089 (2.29%) |
| Age | ||
| Infant (0–2 years) | 63,717 | 1,127 (1.77%) |
| Preschool (3–5 years) | 97,075 | 4,026 (4.15%) |
| School age (6–14 years) | 303,245 | 8,429 (2.82%) |
| Race | ||
| Han | 433,951 | 12,997 (3.00%) |
| Manchus | 3,189 | 87 (2.73%) |
| Zhuang | 4,136 | 109 (2.64%) |
| Hui | 6,574 | 157 (2.39%) |
| Mongolian | 1,520 | 29 (1.91%) |
| Uygur | 1,781 | 14 (0.79%) |
| Tibetan | 4,346 | 22 (0.51%) |
| Inducing factors | (n [% of total asthmatic children]) | |
| Respiratory infection | — | 12,299 (87.9%) |
| Climate change | — | 7,204 (51.5%) |
| Exercise | — | 3,055 (21.8%) |
| Clinical features | — | |
| Cough | — | 12,771 (91.3%) |
| Wheezing | — | 10,659 (76.2%) |
| Asthma attacks per year b | ||
| 1–5 | — | 10,682 (87.7%) |
| 6–10 | — | 1,227 (10.1%) |
| >10 | — | 269 (2.2%) |
| Allergy history | ||
| Personal allergies | — | 10,143 (72.5%) |
| Allergic rhinitis | — | 7,010 (50.1%) |
| Eczema/atopic dermatitis | — | 4,147 (29,6%) |
| Urticaria | — | 2,683 (19,2%) |
| Food allergies | — | 2,079 (14.9%) |
| Family history of allergies | — | 6,321 (45.2%) |
| Family history of asthma | — | 2,924 (20.9%) |
| Therapy | ||
| Bronchodilators | — | 9,986 (71.4%) |
| Steroids | — | 8,209 (58.7%) |
| Leukotriene antagonist | — | 4,873 (34.8%) |
| Antiallergic agents | — | 6,352 (45.4%) |
| Antibiotics | — | 10,504 (75.1%) |
(a) Data from the Chinese Journal of Pediatrics: third-nationwide survey of childhood asthma in urban areas of China, 2013.
(b) Data regarding the frequency of asthma attacks was only available for 12,178 (87%) patients in the asthmatic cohort.
(c) Data pertaining to the prevalence, age, gender, and race of the asthmatic patients is presented as the percentage of the corresponding population in the full survey. For example, 3.51% of all males surveyed met the criteria for an asthma diagnosis.