Characteristics of pregnancies according to the level of asthma exacerbation in the first trimester of pregnancy: severe (hospitalisation), moderate (ED visit and no hospitalisation) and reference group (neither ED visit or hospitalisation)
| Characteristics | Hospitalisation for asthma (n=110) | ED visit and no hospitalisation for asthma (n=1413) | No hospitalisation and no ED visit for asthma (n=35 064) |
|---|---|---|---|
| Age* (years) | |||
| <18 | 5 (4.5) | 55 (3.9) | 893 (2.5) |
| 18–34 | 97 (88.2) | 1264 (89.5) | 30 596 (87.3) |
| >34 | 8 (7.3) | 94 (6.6) | 3575 (10.2) |
| Drug insurance status* | |||
| Publicly insured women with social welfare | 32 (29.1) | 324 (22.9) | 5584 (15.9) |
| Publicly insured women without social welfare | 34 (30.9) | 427 (30.2) | 8184 (23.4) |
| Privately insured women | 44 (40.0) | 662 (46.9) | 21 296 (60.7) |
| Area of residence* | |||
| Urban | 83 (75.5) | 1146 (81.1) | 29 166 (83.2) |
| Rural | 26 (23.6) | 257 (18.2) | 5604 (16.0) |
| Missing | 1 (0.9) | 10 (0.7) | 294 (0.8) |
| Multiple pregnancy | 3 (2.7) | 25 (1.8) | 580 (1.7) |
| Diabetes mellitus† | 10 (9.1) | 25 (1.8) | 794 (2.3) |
| Epilepsy† | 2 (1.8) | 9 (0.6) | 183 (0.5) |
| Chronic hypertension† | 4 (3.6) | 38 (2.7) | 903 (2.6) |
Data shown are n (%).
*At the start of pregnancy.
†Identified from diagnoses recorded in the databases within 1 year of the onset of pregnancy or during the first trimester of pregnancy.
ED, emergency department.