TABLE 1.

Baseline characteristics of patients with Wilson's disease and matched general population reference individuals.

	Wilson's disease (N = 151)	Reference individuals (N = 1441)	p	Wilson's disease patients born in Sweden (N = 102)	Wilson's disease patients born outside Sweden (N = 49)	p
Follow‐up (years)	6.57 (2.88–12.90)	7.54 (3.83–13.64)	0.08	6.71 (3.30–12.77)	6.06 (1.75–13.79)	0.31
Men	76 (50.3%)	728 (50.5%)	0.96	48 (47.1%)	28 (57.1%)	0.25
Age at baseline, years	26 (17–42)	26 (17–41)	0.72	27 (16–44)	26 (19–34)	0.68
<10	14 (9.3%)	139 (9.6%)		13 (12.7%)	1 (2.0%)
10–19	36 (23.8%)	356 (24.7%)		23 (22.5%)	13 (26.5%)
20–29	35 (23.2%)	338 (23.5%)		17 (16.7%)	18 (36.7%)
30–39	23 (15.2%)	212 (14.7%)		14 (13.7%)	9 (18.4%)
40–49	19 (12.6%)	175 (12.1%)		16 (15.7%)	3 (6.1%)
50 +	24 (15.9%)	221 (15.3%)		19 (18.6%)	5 (10.2%)
Period of inclusion			1.00			0.71
2002–2005	27 (17.9%)	256 (17.8%)		20 (19.6%)	7 (14.3%)
2006–2010	36 (23.8%)	337 (23.4%)		22 (21.6%)	14 (28.6%)
2011–2015	35 (23.2%)	328 (22.8%)		23 (22.5%)	12 (24.5%)
2016–2020	53 (35.1%)	520 (36.1%)		37 (36.3%)	16 (32.7%)
Country of birth			<0.001			<0.001
Nordic countries	104 (68.9%)	1286 (89.2%)		102 (100%)	2 (4.1%)
Europe (non‐Nordic)	12 (7.9%)	33 (2.3%)		0	12 (24.5%)
Other	35 (23.2%)	122 (8.5%)		0	35 (71.4%)
Education			0.52
<9 years	24 (15.9%)	205 (14.2%)		18 (17.6%)	6 (12.2%)	0.01
9–12 years	57 (37.7%)	618 (42.9%)		44 (43.1%)	13 (26.5%)
>12 years	49 (32.5%)	438 (30.4%)		24 (23.5%)	25 (51.0%)
Missing	21 (13.9%)	180 (12.5%)		16 (15.7%)	5 (10.2%)
Neurologic diagnosis before or at baseline	26 (17.2%)	94 (6.5%)	<0.001	17 (16.7%)	9 (18.4%)	0.80
Psychiatric diagnosis before or at baseline	36 (23.8%)	144 (10.0%)	<0.001	37 (36.3%)	17 (34.7%)	0.90

Note: Results are presented as n (%) or median (IQR).