Table 1.

Descriptive statistics for study variables (n = 21 419)

Variable	n	%
Service-area deprivation
IDACI band 0	6858	32
IDACI band 1	8750	41
IDACI band 2	1312	6
IDACI band 3	4499	21
Demographics
Age
0–12 years	8858	41
13–15 years	8055	38
≥16 years	4476	21
Gender, female	11 712	55
Ethnicity
White British	13 505	63
White Other	779	4
Mixed-race	739	3
Asian	1343	6
Black	835	4
Other	632	3
Not stated	3586	17
Referral sourcea
Primary care	9898	46
Self-referral	988	5
Social care/youth justice	807	4
Education	1675	8
Child health	1087	5
Accidence and emergency	998	5
Mental health	1742	8
Other	2153	10
Missing	2071	10
Contextual factors
Home	6493	30
School	6394	30
Community	2538	12
Engagement	1008	5
Severity
Self-management	6363	30
Severe problems	1931	9
Self-harm	1168	5
Psychosis	262	1
Eating disorder	403	2
Attention-deficit hyperactivity disorder	1254	6
Emotional	1950	9
Unclassified	3437	16
Other	4651	22
Waiting timesa
0–2-week wait	5644	26
3–4-week wait	4147	19
5–18-week wait	10 033	47
≥19-week wait	1595	7

IDACI, Income Deprivation Affecting Children Index.

^a.Referral source and waiting times do not sum to 100% because of rounding.