Table E5.
Results in the overall child population regardless of the general practitioner registration date related to birth: Incidence rates and rate ratios of eczema by sociodemographic factors stratified by age (N = 1,472,337 for analysis on sex and Index of Multiple Deprivation and N = 392,830 for analysis on ethnicity)
| Characteristic | <1-y-olds (n of eczema = 59,840) |
1-4-y-olds (n of eczema = 44,111) |
5-17-y-olds (n of eczema = 22,527) |
|||
|---|---|---|---|---|---|---|
| Rate∗ (95% CI) | aRR† (95% CI) | Rate∗ (95% CI) | aRR† (95% CI) | Rate∗ (95% CI) | aRR† (95% CI) | |
| Sex | ||||||
| Male | 15.9 (15.7-16.1) | 1.3 (1.3-1.4) | 2.8 (2.8-2.9) | 1.0 (1.0-1.0) | 0.4 (0.4-0.4) | 0.7 (0.7-0.7) |
| Female | 11.7 (11.6-11.8) | Reference | 2.9 (2.8-2.9) | Reference | 0.5 (0.5-0.5) | Reference |
| Index of Multiple Deprivation | ||||||
| 1 (least deprived) | 15.6 (15.4-15.9) | 1.2 (1.2-1.3) | 3.1 (3.1-3.2) | 1.3 (1.2-1.3) | 0.4 (0.4-0.4) | 0.9 (0.9-1.0) |
| 2 | 13.8 (13.5-14.0) | 1.1 (1.0-1.1) | 2.9 (2.8-2.9) | 1.2 (1.1-1.2) | 0.4 (0.4-0.4) | 0.9 (0.9-0.9) |
| 3 | 13.6 (13.3-13.8) | 1.1 (1.0-1.1) | 2.8 (2.7-2.9) | 1.1 (1.1-1.2) | 0.4 (0.4-0.5) | 0.9 (0.9-1.0) |
| 4 | 13.1 (12.9-13.3) | 1.0 (1.0-1.1) | 2.7 (2.7-2.8) | 1.1 (1.1-1.1) | 0.5 (0.5-0.5) | 1.0 (1.0-1.0) |
| 5 (most deprived) | 12.9 (12.6-13.1) | Reference | 2.7 (2.6-2.7) | Reference | 0.5 (0.5-0.5) | Reference |
| Ethnicity | n of eczema = 26,958 | n of eczema = 15,269 | n of eczema = 1,824 | |||
| White | 12.4 (12.2-12.5) | Reference | 3.1 (3.1-3.2) | Reference | 0.5 (0.5-0.5) | Reference |
| Mixed | 17.8 (16.8-18.8) | 1.5 (1.4-1.6) | 3.6 (3.3-3.9) | 1.2 (1.1-1.4) | 0.7 (0.5-0.9) | 1.4 (1.0-1.9) |
| Black Caribbean | 28.6 (25.5-32.0) | 2.5 (2.3-2.8) | 5.3 (4.4-6.4) | 2.1 (1.7-2.5) | 1.7 (1.1-2.5) | 3.5 (2.4-5.2) |
| Black African | 21.9 (20.6-23.4) | 1.9 (1.8-2.1) | 3.9 (3.5-4.3) | 1.5 (1.3-1.6) | 1.0 (0.8-1.2) | 2.1 (1.7-2.6) |
| Black other | 28.5 (25.2-32.2) | 2.5 (2.2-2.8) | 3.9 (3.2-4.9) | 1.4 (1.1-1.8) | 1.8 (1.3-2.5) | 3.7 (2.6-5.3) |
| Indian | 24.1 (22.7-25.6) | 1.9 (1.7-2.0) | 4.0 (3.7-4.4) | 1.3 (1.2-1.4) | 1.0 (0.9-1.3) | 2.2 (1.8-2.7) |
| Bangladeshi | 31.2 (28.0-34.8) | 2.4 (2.1-2.9) | 5.3 (4.4-6.3) | 1.6 (1.3-1.9) | 1.2 (0.7-2.1) | 2.3 (1.3-4.0) |
| Pakistani | 20.1 (18.7-21.5) | 1.6 (1.5-1.8) | 3.8 (3.5-4.2) | 1.1 (0.9-1.3) | 1.0 (0.8-1.2) | 1.8 (1.5-2.3) |
| Chinese | 41.8 (37.1-41.1) | 3.4 (3.0-3.8) | 4.6 (3.5-5.9) | 1.7 (1.3-2.2) | 0.5 (0.2-1.6) | 1.1 (0.3-3.3) |
| Asian other | 23.6 (21.8-25.5) | 2.0 (1.8-2.1) | 4.3 (3.8-4.9) | 1.3 (1.2-1.5) | 1.2 (0.8-1.6) | 2.3 (1.6-3.2) |
| Other | 16.7 (15.4-18.2) | 1.3 (1.2-1.5) | 3.2 (2.8-3.6) | 1.1 (1.0-1.3) | 0.9 (0.7-1.2) | 1.9 (1.4-2.6) |
∗
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.