Positive response (%) for each of the asthma, rhinitis, and eczema symptoms, with percentage change, in the overall population and different age groups for the 1994 and 2001 surveys
| 6–7 year age group | 12–15 year age group | |||||||
|---|---|---|---|---|---|---|---|---|
| 1994 | 2001 | Change | p value† | 1994 | 2001 | Change | p value† | |
| Values in parentheses are standard errors (SE). | ||||||||
| †Adjusted for sex, race, and housing type. | ||||||||
| Asthma | ||||||||
| Ever wheezed | 28.6 (1.0) | 21.5 (0.6) | −7.1 (1.2) | 0.044 | 18.6 (0.6) | 25.1 (0.7) | 6.5 (0.9) | <0.001 |
| Wheeze in past year | 16.6 (0.8) | 10.2 (0.4) | −6.4 (0.9) | <0.001 | 9.9 (0.5) | 11.9 (0.5) | 2.0 (0.7) | 0.015 |
| Wheeze with exercise in past year | 8.4 (0.6) | 4.4 (0.3) | −4.0 (0.7) | <0.001 | 13.2 (0.5) | 14.7 (0.6) | 1.5 (0.8) | 0.072 |
| Nocturnal cough in past year | 14.9 (0.8) | 19.5 (0.6) | 4.6 (1.0) | <0.001 | 11.4 (0.5) | 21.2 (0.7) | 9.7 (0.8) | <0.001 |
| Ever diagnosed asthma | 18.5 (0.9) | 16.3 (0.5) | −2.2 (1.0) | 0.464 | 20.7 (0.6) | 27.4 (0.7) | 6.7 (0.9) | <0.001 |
| Rhinitis | ||||||||
| Ever had rhinitis | 30.8 (1.0) | 29.3 (0.6) | −1.5 (1.2) | 0.061 | 50.9 (0.8) | 49.8 (0.8) | −1.2 (1.1) | 0.707 |
| Rhinitis in past year | 27.7 (1.0) | 25.5 (0.6) | −2.2 (1.2) | 0.194 | 41.8 (0.8) | 42.1 (0.8) | 0.3 (1.1) | 0.401 |
| Associated itchy eye in past year | 9.3 (0.7) | 9.3 (0.4) | 0.0 (0.8) | 0.097 | 17.1 (0.6) | 19.0 (0.6) | 1.9 (0.9) | 0.378 |
| Ever diagnosed hay fever | 6.3 (0.6) | 8.3 (0.4) | 2.0 (0.7) | 0.003 | 3.7 (0.3) | 3.1 (0.3) | −0.6 (0.4) | 0.207 |
| Eczema | ||||||||
| Chronic rash | 10.5 (1.2) | 12.5 (0.5) | 2.0 (1.3) | 0.194 | 12.3 (0.5) | 14.9 (0.6) | 2.6 (0.8) | 0.056 |
| Chronic rash in past year | 8.9 (1.1) | 11.0 (0.4) | 2.1 (1.2) | 0.155 | 9.5 (0.5) | 11.6 (0.5) | 2.1 (0.7) | 0.034 |
| Chronic rash with typical dist | 6.1 (0.9) | 9.8 (0.4) | 3.7 (1.0) | 0.028 | 7.0 (0.4) | 10.2 (0.5) | 3.2 (0.6) | <0.001 |
| Ever diagnosed eczema | 3.0 (0.7) | 8.8 (0.4) | 5.8 (0.8) | <0.001 | 4.1 (0.3) | 5.8 (0.4) | 1.7 (0.5) | 0.810 |