Characteristics of patients in the EMRPC with and without atopic dermatitis, 2005 to 2015
| Characteristic | No. of patients (%)* | |
|---|---|---|
| Patients without atopic dermatitis n = 242 172 | Patients with atopic dermatitis n = 7812 | |
| Age, yr | ||
| Mean ± SD | 44.3 ± 22.5 | 26.8 ± 23.5 |
| Median (IQR) | 46 (27–61) | 16 (7–45) |
| Sex, female | 135379 (55.9) | 4705 (60.2) |
| Rurality of residence† | ||
| Rural | 31769 (13.1) | 824 (10.5) |
| Small town | 58167 (24.0) | 1613 (20.6) |
| Urban | 150150 (62.0) | 5328 (68.2) |
| Neighbourhood income quintile† | ||
| 1 (low) | 39128 (16.2) | 1338 (17.1) |
| 2 | 44457 (18.4) | 1347 (17.2) |
| 3 | 47717 (19.7) | 1594 (20.4) |
| 4 | 51021 (21.1) | 1724 (22.1) |
| 5 (high) | 59139 (24.4) | 1789 (22.9) |
| Neighbourhood ethnic concentration quintile† | ||
| 1 (low) | 46896 (19.4) | 1192 (15.3) |
| 2 | 46294 (19.1) | 1309 (16.8) |
| 3 | 54681 (22.6) | 1815 (23.2) |
| 4 | 55749 (23.0) | 2041 (26.1) |
| 5 (high) | 36685 (15.1) | 1405 (18.0) |
| Neighbourhood dependency quintile† | ||
| 1 (low) | 65066 (26.9) | 2508 (32.1) |
| 2 | 55219 (22.8) | 1855 (23.7) |
| 3 | 43569 (18.0) | 1329 (17.0) |
| 4 | 34572 (14.3) | 1015 (13.0) |
| 5 (high) | 41879 (17.3) | 1055 (13.5) |
| Neighbourhood deprivation quintile† | ||
| 1 (low) | 70283 (29.0) | 2227 (28.5) |
| 2 | 53646 (22.2) | 1751 (22.4) |
| 3 | 48170 (19.9) | 1535 (19.6) |
| 4 | 36795 (15.2) | 1172 (15.0) |
| 5 (high) | 31411 (13.0) | 1077 (13.8) |
| Neighbourhood residential instability quintile† | ||
| 1 (low) | 41132 (17.0) | 1345 (17.2) |
| 2 | 47436 (19.6) | 1485 (19.0) |
| 3 | 45438 (18.8) | 1431 (18.3) |
| 4 | 46896 (19.4) | 1512 (19.4) |
| 5 (high) | 59403 (24.5) | 1989 (25.5) |
| Continuity of primary care | ||
| High (≥ 50% of visits to rostering physician) | 169327 (69.9) | 4853 (62.1) |
| Low (< 50% of visits to rostering physician) | 52785 (21.8) | 2162 (27.7) |
| Missing | 20060 (8.3) | 797 (10.2) |
| Comorbidity (ADG)‡ | ||
| Low (0–4) | 116500 (48.1) | 3407 (43.6) |
| Moderate (5–9) | 98418 (40.6) | 3526 (45.1) |
| High (≥ 10) | 27254 (11.3) | 879 (11.3) |
| Morbidity (RUB)‡ | ||
| Nonuser or healthy user | 19347 (8.0) | 512 (6.6) |
| Low morbidity | 48192 (19.9) | 1910 (24.4) |
| Moderate morbidity | 122641 (50.6) | 3950 (50.6) |
| High morbidity | 51992 (21.5) | 1440 (18.4) |
Note: ADG = Adjusted Diagnosis Group, EMRPC = Electronic Medical Record Primary Care database, IQR = interquartile range, RUB = Resource Utilization Band, SD = standard deviation.
Characteristics are given for Dec. 31, 2015.
↵* Unless stated otherwise.
↵† Data for neighbourhood-level variables were missing for less than 1% of participants.
↵‡ Based on Johns Hopkins Adjusted Clinical Groups; RUBs are aggregations of Adjusted Clinical Groups with similar expected utilization.