Table 1.
Characteristics of Patients Less than 50 Years of Age Diagnosed with Asthma in 2008
| NDTI N = 11.9 Million Visits | NAMCS N = 16.7 Million Visits | |
|---|---|---|
| Gender, % | ||
| Male | 50.9 | 45.1 |
| Female | 47.2 | 52.8 |
| Unspecified | 1.9 | 2.1 |
| Age, % | ||
| <18 | 56.0 | 64.1 |
| 18–29 | 14.0 | 16.0 |
| 30–39 | 14.1 | 16.1 |
| 40-49 | 15.9 | 18.2 |
| Physician specialty, % | ||
| Pediatricians | 40.6 | 30.2 |
| Other Primary Care Physicians* | 33.6 | 39.9 |
| All Other Physicians** | 25.8 | 29.9 |
| Past Visits in last 12 months, % | ||
| None | 27.8 | 25.6 |
| 1–2 | 43.9 | 43.2 |
| 3–5 | 13.2 | 14.7 |
| 6 or more | 7.4 | 8.7 |
| Unknown or unspecified | 7.7 | 7.9 |
* Includes internal medicine, family practice, and general practice
**Includes physicians such as pulmonologists and allergy/immunologists
NAMCS=National Ambulatory Medical Care Survey; NDTI=National Disease and Therapeutic Index; Visits represent projected estimates