Table 1.

Sociodemographic variables for pre- and post-Covid groups.

Variables	Pre-Covid	Post-Covid	Differences between groups
	M (SD)	M (SD)	U Mann Whitney or χ2
N	41	41
Age (months)	19.83 (5.26)	19.83 (5.26)	U = 840, p = 1.0
Gender
Male	22	22	χ2 = 0.000, p = 1.00
Female	19	19
Prematurity
Yes	0	0	-
No	41	41
Weigh at birth	3.32 (0.4)	3.27 (0.48)	U = 606, p = 0.676
Birth order
1st	32	31
2nd	9	9	χ2 = 1.016, p = 0.602
3rd	0	1
Education of mothersa
Primary	0	0
Secondary	5	4	χ2 = 0.188, p = 0.655
University	34	37
Bilingualism
No	18	17	χ2 = 0.345, p = 0.842
Familiar bilingualism (only one Catalan-speaking parent)	6	8
Other contacts	17	16
Otitisa
Yes	8	9	χ2 = 0.046, p = 0.829
No	32	32
Previous language difficulties
Yes	1	0	χ2 = 1.012, p = 0.314
No	40	41

^aLost data.