Table 1.
Age-adjusted Incidence Ratesa of Childhood Asthma Among Texas Medicaid-enrolled Children Aged 1–17 Years, 2005–2007
| Person-Years | % | No. of Asthma Casesb | % | Incidence Rate/ 100 Person-Years | 95% CI | |
|---|---|---|---|---|---|---|
| Total | 2,467,757 | 129,588 | 4.26 | 4.23, 4.30 | ||
| Age group, years | ||||||
| 1–4 | 1,304,611 | 52.9 | 85,390 | 65.9 | 6.55 | 6.50, 6.59 |
| 5–9 | 603,279 | 24.4 | 26,131 | 20.2 | 4.33 | 4.28, 4.38 |
| 10–14 | 487,355 | 19.7 | 15,949 | 12.3 | 3.27 | 3.22, 3.32 |
| 15–17 | 72,512 | 2.9 | 2,118 | 1.6 | 2.92 | 2.80, 3.05 |
| Gender | ||||||
| Female | 1,235,010 | 50.0 | 58,722 | 45.3 | 3.95 | 3.90, 3.99 |
| Male | 1,232,706 | 50.0 | 70,864 | 54.7 | 4.57 | 4.52, 4.62 |
| Race | ||||||
| White | 406,837 | 16.5 | 23,079 | 17.8 | 4.78 | 4.69, 4.86 |
| Black | 390,526 | 15.8 | 20,617 | 15.9 | 4.45 | 4.37, 4.52 |
| American Indian | 7,465 | 0.3 | 409 | 0.3 | 3.84 | 3.33, 4.36 |
| Asian | 29,990 | 1.2 | 1,407 | 1.1 | 3.54 | 3.29, 3.79 |
| Hispanic | 1,608,753 | 65.2 | 82,612 | 63.7 | 4.18 | 4.14, 4.22 |
| Unknown | 24,187 | 1.0 | 1,464 | 1.1 | ||
| Race/gender | ||||||
| White/male | 203,965 | 8.3 | 12,489 | 9.7 | 4.92 | 4.80, 5.03 |
| Black/male | 193,951 | 7.9 | 11,479 | 9.0 | 4.89 | 4.78, 5.01 |
| American Indian/male | 3,866 | 0.2 | 251 | 0.2 | 4.27 | 3.63, 4.91 |
| Asian/male | 14,741 | 0.6 | 794 | 0.6 | 3.82 | 3.47, 4.17 |
| Hispanic/male | 807,900 | 32.9 | 44,915 | 35.1 | 4.52 | 4.46, 4.57 |
| White/female | 202,865 | 8.3 | 10,590 | 8.3 | 4.62 | 4.50, 4.74 |
| Black/female | 196,573 | 8.0 | 9,137 | 7.1 | 4.00 | 3.90, 4.10 |
| American Indian/female | 3,598 | 0.1 | 158 | 0.1 | 3.42 | 2.58, 4.26 |
| Asian/female | 14,882 | 0.6 | 613 | 0.5 | 3.25 | 2.90, 3.61 |
| Hispanic/female | 814,428 | 33.2 | 37,697 | 29.4 | 3.84 | 3.79, 3.89 |
Abbreviation: CI, confidence interval.
a Per 100 person-years. Age-adjusted to the proportion of the 2000 US Census population in each age category, with the exception of rates presented by age group.
b Cells with 10 or fewer cases are not displayed per Centers for Medicare and Medicaid Services stipulation.