Table E3.
Results after using a more inclusive eczema definition: Incidence rates and rate ratios of eczema by sociodemographic factors stratified by age (N = 675,087 for analysis on sex and Index of Multiple Deprivation and N = 247,798 for analysis on ethnicity)
| Characteristic | <1-y-olds (n of eczema = 70,425) |
1-4-y-olds (n of eczema = 57,809) |
5-17-y-olds (n of eczema = 18,247) |
|||
|---|---|---|---|---|---|---|
| Rate∗ (95% CI) | aRR† (95% CI) | Rate∗ (95% CI) | aRR† (95% CI) | Rate∗ (95% CI) | aRR† (95% CI) | |
| Sex | ||||||
| Male | 20.3 (20.1-20.5) | 1.3 (1.3-1.3) | 5.3 (5.2-5.3) | 1.0 (0.9-1.0) | 0.9 (0.9-0.9) | 0.7 (0.7-0.8) |
| Female | 15.3 (15.1-15.5) | Reference | 5.4 (5.4-5.4) | Reference | 1.2 (1.2-1.3) | Reference |
| Index of Multiple Deprivation | ||||||
| 1 (least deprived) | 20.0 (19.7-20.3) | 1.2 (1.2-1.2) | 5.9 (5.8-6.0) | 1.1 (1.1-1.2) | 1.1 (1.1-1.1) | 1.0 (1.0-1.1) |
| 2 | 17.8 (17.5-18.1) | 1.1 (1.1-1.1) | 5.4 (5.3-5.5) | 1.1 (1.1-1.1) | 1.1 (1.0-1.1) | 1.0 (1.0-1.1) |
| 3 | 17.5 (17.2-17.8) | 1.1 (1.0-1.1) | 5.2 (5.1-5.3) | 1.1 (1.0-1.1) | 1.1 (1.0-1.1) | 1.0 (1.0-1.1) |
| 4 | 16.9 (16.6-17.2) | 1.0 (1.0-1.1) | 5.0 (4.9-5.1) | 1.0 (1.0-1.1) | 1.0 (1.0-1.1) | 1.0 (0.9-1.0) |
| 5 (most deprived) | 16.5 (16.2-16.8) | Reference | 4.9 (4.8-5.0) | Reference | 1.1 (1.0-1.1) | Reference |
| Ethnicity | n of eczema = 32,215 | n of eczema = 20,476 | n of eczema = 893 | |||
| White | 16.2 (16.0-16.4) | Reference | 5.7 (5.6-5.8) | Reference | 1.3 (1.2-1.3) | Reference |
| Mixed | 22.1 (21.0-23.3) | 1.4 (1.3-1.5) | 6.0 (5.6-6.5) | 1.1 (1.0-1.2) | 1.5 (1.0-2.2) | 1.2 (0.8-1.8) |
| Black Caribbean | 33.6 (30.1-37.5) | 2.3 (2.0-2.5) | 7.1 (6.0-8.5) | 1.3 (1.1-1.6) | 2.4 (1.1-5.3) | 2.0 (0.9-4.6) |
| Black African | 26.2 (24.6-27.9) | 1.8 (1.7-1.9) | 5.5 (5.0-6.1) | 1.0 (0.9-1.1) | 1.8 (1.2-2.8) | 1.4 (0.9-2.3) |
| Black other | 33.1 (29.5-37.3) | 2.2 (2.0-2.5) | 5.7 (4.6-7.0) | 1.1 (0.9-1.3) | 3.9 (2.2-6.9) | 3.5 (2.0-6.3) |
| Indian | 28.8 (27.1-30.5) | 1.7 (1.5-1.8) | 6.4 (5.9-7.0) | 1.1 (1.0-1.2) | 1.5 (1.0-2.4) | 1.1 (0.7-1.8) |
| Bangladeshi | 34.1 (30.6-38.0) | 2.2 (1.9-2.4) | 7.8 (6.5-9.2) | 1.3 (1.1-1.6) | 3.4 (1.7-6.4) | 2.3 (1.2-4.5) |
| Pakistani | 23.5 (22.0-25.1) | 1.5 (1.4-1.6) | 5.9 (5.4-6.5) | 1.0 (0.9-1.1) | 1.8 (1.2-2.7) | 1.3 (0.9-2.0) |
| Chinese | 51.0 (45.5-57.1) | 3.1 (2.8-3.5) | 7.6 (5.9-9.7) | 1.4 (1.1-1.8) | 0.8 (0.1-6.0) | 0.8 (0.1-5.5) |
| Asian other | 28.0 (26.0-30.2) | 1.8 (1.6-1.9) | 6.2 (5.5-7.1) | 1.1 (1.0-1.2) | 2.5 (1.5-4.2) | 1.9 (1.1-3.2) |
| Other | 21.2 (19.6-22.9) | 1.3 (1.1-1.4) | 5.7 (5.1-6.4) | 1.0 (0.9-1.2) | 1.8 (1.0-3.2) | 1.5 (0.8-2.6) |
∗
Rate per 100 person-years.
†
Model adjusted for sex, Index of Multiple Deprivation, and the number of annual consultations during the study follow-up period.