Table 1.

Relative admission rates for CYP with and without LTCs and before (10–15 years) and after (19–24 years) transition

Covariate	No LTC	LTC	No LTC	LTC
	Crude IRR (99% CI)		Adjusted IRR (99% CI)
Transition	1.18 (1.17 to 1.18)	1.44 (1.41 to 1.47)	1.21 (1.18 to 1.23)	1.55 (1.47 to 1.63)
Sex (reference=male)	1.07 (1.06 to 1.07)	0.92 (0.90 to 0.94)	1.05 (1.05 to 1.06)	0.98 (0.96 to 1.00)
Age	1.02 (1.01 to 1.02)	1.03 (1.03 to 1.04)	1.00 (0.99 to 1.00)	0.98 (0.98 to 0.99)
Index of Multiple Deprivation 2004
1—most deprived	1.10 (1.09 to 1.11)	1.41 (1.36 to 1.46)	1.07 (1.05 to 1.08)	1.17 (1.13 to 1.20)
2	1.07 (1.06 to 1.09)	1.28 (1.23 to 1.32)	1.04 (1.03 to 1.06)	1.08 (1.05 to 1.12)
3	1.07 (1.06 to 1.10)	1.05 (1.01 to 1.09)	1.07 (1.05 to 1.08)	1.02 (0.99 to 1.05)
4	1.02 (1.01 to 1.04)	1.04 (1.00 to 1.07)	1.02 (1.00 to 1.03)	1.02 (0.98 to 1.05)
5—least deprived	Reference	Reference	Reference	Reference
Missing	0.88 (0.86 to 0.91)	1.11 (1.01 to 1.22)	0.87 (0.85 to 0.89)	1.01 (0.92 to 1.10)
Ethnicity
White	Reference	Reference	Reference	Reference
Black	1.21 (1.18 to 1.24)	2.67 (2.56 to 2.79)	1.19 (1.16 to 1.22)	2.49 (2.39 to 2.60)
Asian	1.03 (1.01 to 1.04)	1.07 (1.03 to 1.12)	1.03 (1.01 to 1.04)	1.13 (1.08 to 1.19)
Mixed	0.94 (0.92 to 0.95)	0.93 (0.89 to 0.97)	0.93 (0.92 to 0.95)	0.93 (0.89 to 0.97)
Unknown	0.75 (0.74 to 0.77)	0.43 (0.39 to 0.47)	0.75 (0.74 to 0.77)	0.43 (0.40 to 0.47)
Missing	0.82 (0.80 to 0.84)	0.52 (0.49 to 0.54)	0.82 (0.81 to 0.84)	0.54 (0.51 to 0.57)

Age is included in the model as a continuous variable. IRR refers to increase per year of age.

Models are corrected for variables shown in the table.

The IRR compares the emergency admission rate before (age 10–15 years) transition with the rate after (age 19–24 years) transition.

CYP, children and young people; IRR, incidence rate ratio; LTC, long-term conditions.