Table 2.

Readmission rates and rates of psychiatric versus general hospital admissions for children (0–14 years) with AN.

	2019	2020	2021	∆ 2020 vs 2019 (n) (Re-)admission risk ratio	∆ 2021 vs 2020 (n) (Re-)admission risk ratio	∆ 2021 vs 2019 (n) (Re-)admission risk ratio
Females and males together
Readmissions (Jan. – Sept.)	23	25	41
Readmission rate	3.39	4.24	4.24	1.25	1.00	1.25
	(2.27, 5.03)	(2.89, 6.19)	(3.14, 5.70)	(0.72, 2.18)	(0.61, 1.63)	(0.76, 2.07)
				p = 0.52	p = 1	p = 0.45
Admissions to a psychiatric hospital (Jan. – Sept.)	423	352	508
Psychiatric admission rate	1.65	1.37	1.96	0.83	1.43	1.18
	(1.50, 1.82)	(1.23, 1.52)	(1.79, 2.13)	(0.72, 0.95)	(1.25, 1.64)	(1.04, 1.35)
				p = 0.009	p < 0.0001	p = 0.01
Admissions to a general hospital (Jan. – Sept.)	280	262	500
General hospital admission rate	1.09	1.02	1.92	0.93	1.89	1.76
	(0.97, 1.23)	(0.90, 1.15)	(1.76, 2.10)	(0.78, 1.10)	(1.63, 2.20)	(1.52, 2.04)
				p = 0.41	p < 0.0001	p < 0.0001

In 2019 there is one case more in the sum of admissions to hospital (first column table 1b) than in the global sum of males and females (first column Table 1a). In one case information on sex was missing.