Table 3.

The prevalence of selected common comorbidities in children with DS reported by parents.

Comorbidities	N	[%]
Hypothyroidism	142	52.98
Vision defects	112	41.79
Cardiac defects	64	23.88
Hearing problems	59	22.01
Immunodeficiency	34	12.69
Others	25	9.33
Lipid disorders	19	7.08
Autoimmune diseases	18	6.71
Malignancy	4	1.49
Hyperthyroidism	3	1.11
Hypertension	2	0.74

*N- the amount of participants (DS) with chosen comorbidity.