Table 2.
Characteristics of children hospitalized or who visited the emergency department for asthma, Baltimore, Maryland, 1 June 2002–30 November 2002 [no. (%)].
| Characteristic | Days with zinc collected | One day after those with zinc collected | Two days after those with zinc collected |
|---|---|---|---|
| Sex | |||
| Male | 1,093 (60) | 1,120 (62) | 1,094 (61) |
| Female | 720 (40) | 699 (38) | 690 (39) |
| Race/ethnicity | |||
| Caucasian | 353 (19) | 357 (20) | 355 (20) |
| African American | 1,430 (79) | 1,433 (79) | 1,398 (78) |
| Other | 30 (2) | 29 (1) | 31 (2) |
| Age (years) | |||
| Infant (0– < 1) | 104 (6) | 101 (6) | 106 (6) |
| Toddler (1– < 3) | 352 (19) | 367 (20) | 363 (20) |
| Preschooler (3– < 6) | 391 (22) | 402 (22) | 373 (21) |
| School-age (6– < 13) | 659 (36) | 653 (36) | 641 (36) |
| Adolescent (13– < 18) | 307 (17) | 296 (16) | 301 (17) |