. 2021 Jun 18;50:100981. doi: 10.1016/j.dcn.2021.100981

Table 2.

Correlations among study variables.

		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17
6 months old infants
1	Frontal Theta
2	Central Theta	0.851^°
3	Parietal Theta	0.812^°	0.902^°
4	Frontal Alpha	0.583^°	0.532^°	0.422^°
5	Central Alpha	0.461^°	0.598^°	0.488^°	0.866^°
6	Parietal Alpha	0.444^°	0.532^°	0.548^°	0.793^°	0.889^°
7	Frontal Beta	0.329^°	0.306^°	0.214^**	0.611^°	0.418^°	0.331^°
8	Central Beta	0.424^°	0.509^°	0.383^°	0.702^°	0.697^°	0.560^°	0.751^°
9	Parietal Beta	0.399^°	0.445^°	0.495^°	0.612^°	0.609^°	0.683^°	0.590^°	0.796^°
10	Frontal Gamma	0.155^*	0.173^*	0.089	0.460^°	0.310^°	0.235^**	0.920^°	0.637^°	0.469^°
11	Central Gamma	0.235^°	0.293^**	0.204^**	0.453^**	0.423^°	0.355°	0.669^°	0.846^°	0.655^°	0.690^°
12	Parietal Gamma	0.204^**	0.241^**	0.268^°	0.363^°	0.327^°	0.374^°	0.561^°	0.698^°	0.811^°	0.565^°	0.851^°
13	Age	−0.003	−0.059	−0.082	0.084	0.083	0.076	−0.009	0.058	0.078	−0.042	0.046	0.048
14	Sex	0.055	0.024	0.004	0.083	0.040	0.055	0.114	0.150	0.155^*	0.154^*	0.203^*	0.164^*	−0.009
15	Wealth	−0.092	−0.051	−0.040	0.007	0.048	0.047	−0.001	0.060	0.118	−0.036	0.017	0.058	0.379^°	−0.092
16	Mat. education	−0.143	−0.088	−0.133	−0.036	−0.001	−0.036	−0.032	−0.025	−0.026	−0.055	−0.026	−0.042	0.176^°	−0.119	0.543^°
17	Family Care	−0.011	0.007	0.011	0.017	0.044	0.040	−0.047	0.035	0.084	−0.072	0.057	0.084	0.155^*	0.015	0.231^**	0.209^**
18	Maternal Stress	−0.024	0.001	0.021	−0.037	−0.021	0.017	0.023	0.056	0.033	−0.002	0.034	0.040	−0.117	−0.040	−0.125	−0.018	−0.090

36 months old children
1	Frontal Theta
2	Central Theta	0.828^°
3	Parietal Theta	0.820^°	0.924^°
4	Frontal Alpha	0.609^°	0.652^°	0.615^°
5	Central Alpha	0.510^°	0.706^°	0.640^°	0.906^°
6	Parietal Alpha	0.444^°	0.635^°	0.648^°	0.863^°	0.939^°
7	Frontal Beta	0.506^°	0.551^°	0.459^°	0.659^°	0.589^°	0.525^°
8	Central Beta	0.464^°	0.672^°	0.569^°	0.761^°	0.823^°	0.756^°	0.820^°
9	Parietal Beta	0.452^°	0.645^°	0.607^°	0.734^°	0.783^°	0.771^°	0.721^°	0.928^°
10	Frontal Gamma	0.333^°	0.354^°	0.259^°	0.369^°	0.322^°	0.279^°	0.848^°	0.549^°	0.418^°
11	Central Gamma	0.334^°	0.452^°	0.337^°	0.517^°	0.521^°	0.459^°	0.756^°	0.758^°	0.625^°	0.789^°
12	Parietal Gamma	0.388^°	0.486^°	0.410^°	0.515^°	0.515^°	0.455^°	0.646^°	0.714^°	0.755^°	0.5856^°	0.818^°
13	Age	0.112	0.129	0.134	0.174^*	0.110	0.1131	0.174^*	0.150^*	0.168^*	0.125	0.141	0.153^*
14	Sex	0.080	0.058	0.086	0.059	−0.031	−0.018	0.024	0.001	0.041	−0.040	−0.013	0.062	−0.002
15	Wealth	−0.042	−0.076	−0.067	−0.058	−0.107	−0.098	−0.194^**	−0.176^*	−0.181^*	−0.180^*	−0.204^**	−0.195^**	0.258^°	−0.017
16	Mat. Edu.	−0.012	−0.015	0.016	−0.070	−0.066	−0.043	−0.130	−0.081	−0.065	−0.134	−0.098	−0.082	0.082	0.055	0.647^°
17	Family Care	−0.079	−0.021	−0.001	−0.020	−0.010	0.000	0.019	0.049	0.043	0.033	0.054	0.007	0.093	−0.025	0.201^**	0.210^**
18	Maternal Stress	0.163^*	0.148^*	0.124	0.016	0.019	−0.012	0.096	0.032	0.006	0.114	0.044	0.080	−0.086	−0.034	−0.176^*	−0.147^*	−0.156^*

p < 0.05.

^**

p < 0.01.

^°

= < 0.001.