Table 4 Application of the Strongest Eczema Case Definitions to the CPCSSN Repository N = 689,301 patients
Case definition | Prevalence n(%, 95%CI) | Female patient, n(%) | Patient age, mean(SD) | Eczema medication n (%) | Patients with an allergy n (%) | Patients with asthma n(%) | Patients with rhinitis n(%) |
|---|---|---|---|---|---|---|---|
Case definition 1 | 104,354 (15.1%, 15.05–15.22%) | 65,085 (62.4%) | 53.9 (19.9) | 27,885 (26.7%) | 14,948 (14.3%) | 18,973 (18.2%) | 11,151 (10.7%) |
Case definition 7 | 5569 (0.8%, 0.79–0.83%) | 3479 (62.5%) | 48.9 (20.3) | 1620 (29.1%) | 447 (8.0%) | 1228 (22.1%) | 786 (14.1%) |
Case definition 13 | 28,762 (4.2%, 4.13–4.22%) | 18,240 (63.4%) | 51.9 (20.0) | 8452 (29.4%) | 2892 (10.1%) | 5426 (18.9%) | 4208 (14.6%) |
Case definition 14 | 97,980 (14.2%, 14.13–14.3%) | 61,258 (62.5%) | 53.9 (19.9) | 26,301 (26.8%) | 14,260 (14.6%) | 17,998 (18.4%) | 10,429 (10.6%) |
Case definition 17 | 56,171 (8.2%, 8.08–8.21%) | 35,434 (63.1%) | 53.4 (20.1) | 15,275 (27.2%) | 7504 (13.4%) | 11,007 (19.6%) | 7167 (12.8%) |
Case definition 23 | 67,416 (9.8%, 9.71–9.85%) | 42,467 (63.0%) | 52.3 (20.0) | 26,301 (39.0%) [1] | 14,260 (21.2%) 1 | 17,998 (26.7%) 1 | 10,429 (15.5%) 1 |
Patients not captured in an eczema case definition | 584,538 (84.8%) | 322,481 (55.2%) | 52.0 (19.3) | 55,506 (9.5%) | 84,878 (14.5%) | 64,811 (11.1%) | 31,863 (5.5%) |