TABLE 2.

Prevalence of active eczema by sociodemographic factors in children

	eczema cases (n)	Denominator	Prevalence (%)	Unadjusted odds ratio	Adjusted odds ratio
Overall	54,659	570,536	9.6	NA	NA
Sex
Female	26,571	278,131	9.6	1.00 (ref)	1.00 (ref)
Male	28,088	292,405	9.6	1.01 (0.99, 1.02)	1.01 (0.99, 1.03)
Age category a
<2	4532	56,725	8.0	1.00 (ref)	1.00 (ref)
2–6	23,025	162,224	14.2	1.90 (1.87, 1.94)**	1.89 (1.86, 1.93)**
7–11	15,232	167,450	9.1	1.15 (1.12, 1.19)**	1.13 (1.09, 1.16)**
12–17	11,870	184,127	6.4	0.79 (0.76, 0.83)**	0.78 (0.74, 0.82)**
IMD quintile b
1 (most deprived)	11,409	101,632	11.2	1.00 (ref)	1.00 (ref)
2	10,396	98,479	10.6	0.93 (0.91, 0.96)**	0.96 (0.93, 0.98)*
3	9330	104,248	8.9	0.78 (0.75, 0.81)**	0.90 (0.87, 0.93)**
4	10,273	116,432	8.8	0.77 (0.74, 0.79)**	0.92 (0.89, 0.95)**
5 (least deprived)	12,538	140,487	8.9	0.77 (0.75, 0.80)**	0.95 (0.92, 0.97)**
Ethnicity c
White	25,061	297,146	8.4	1.00 (ref)	1.00 (ref)
Asian	6602	40,165	16.4	2.14 (2.11, 2.16)**	2.10 (2.07, 2.13)**
Black	3247	19,694	16.5	2.14 (2.10, 2.18)**	2.13 (2.09, 2.17)**
Mixed	1825	14,452	12.6	1.57 (1.52, 1.62)**	1.49 (1.44, 1.55)**
Other	558	6647	8.4	0.99 (0.91, 1.08)	0.98 (0.89, 1.07)
Rural–urban d Classification a
Rural	8968	113,361	7.9	1.00 (ref)	1.00 (ref)
Urban	45,030	448,528	10.0	1.30 (1.28, 1.32)**	1.11 (1.08, 1.13)**

Derived using data from 2018.

Abbreviation: IMD, index of multiple deprivation.

^aAdditional age category split (2–6, 7–11) was added post hoc due to the marked change in disease prevalence across this age group (Figure 3A).

^bIMD data were not available for n = 9258.

^cEthnicity data were not available for n = 192,432.

^dRural–urban classification was not available for n = 8647.

^** p < .001. *p < .01.