Table 3.

Parent-child concordance, as correlations and regression adjusted for covariates

Pearson’s correlation	Parent-child			Mother-child			Father-child
	N	CC	95% CI	N	CC	95% CI	N	CC	95% CI
Hearing threshold	1467	0.18	0.13 to 0.23	1271	0.17	0.12 to 0.22	196	0.23	0.09 to 0.35
Speech reception threshold	1453	0.18	0.13 to 0.22	1260	0.16	0.11 to 0.22	193	0.23	0.10 to 0.36
Receptive vocabulary	1389	0.29	0.24 to 0.34	1201	0.29	0.24 to 0.34	188	0.28	0.14 to 0.40
Sentence repetition, raw score	1402	0.31	0.26 to 0.36	1217	0.30	0.25 to 0.35	185	0.38	0.25 to 0.50
Sentence repetition, scaled score	1402	0.34	0.29 to 0.38	1217	0.33	0.28 to 0.38	185	0.42	0.30 to 0.54

Adjusted linear regression*	N	RC	P value	N	RC	P value	N	RC	P value
Hearing threshold	1463	0.16	<0.001	1269	0.16	<0.001	194	0.14	0.009
Speech reception threshold	1449	0.14	<0.001	1258	0.12	<0.001	191	0.20	0.002
Receptive vocabulary	1385	0.21	<0.001	1199	0.21	<0.001	186	0.16	0.003
Sentence repetition, raw score	1398	0.28	<0.001	1215	0.27	<0.001	183	0.32	<0.001
Sentence repetition, scaled score	1398	0.29	<0.001	1215	0.28	<0.001	183	0.35	<0.001

Non-biological parent-child pairs were excluded from these analyses (n=13).

*Covariates in adjusted linear regression models include parent and child age, disadvantage index and parent and child sex in models including both sexes.

CC, estimated Pearson’s correlation coefficient; N, number of biological child-parent pairs with this measure; RC, estimated regression coefficient.