Table 2.

First all-cause hospital admissions characteristics

	Down syndrome (n=1105)	Control group (n=3305)	P value
	n(%), Median (IQR)	n(%), Median (IQR)
Age at admission (months)	0 (IQR=0–300)	24 (IQR=0–288)	<0.001
Sex
Male	572 (51.8%)	1840 (55.7%)	<0.001
Female	533 (48.2%)	1465 (44.3%)
Birth year group
Most recent	577 (92.2%)	1468 (44.8%)	<0.001
Less recent	528 (90.7%)	1837 (63.3%)
SIMD
Most affluent (5)	217 (19.6%)	570 (17.2%)	<0.001
4	226 (20.4%)	609 (18.4%)
3	203 (18.4%)	591 (17.9%)
2	230 (20.8%)	720 (21.8%)
Most deprived (1)	229 (20.7%)	814 (24.6%)
Duration of admission (days)	2.00 (IQR=1.00–4.00)	1.00 (IQR=1.00–1.00)	<0.001

Denominator for birth year group most recent/less recent are for Down syndrome n=653/582/control group n=3275/2900.

SIMD, Scottish Index of Multiple Deprivation.