TABLE 4.

Correlations of continuous variables and primary cognitive outcomes among children with SCA and unaffected children

	Est. IQ (n = 36–42)		WMI (n = 36–46)		PSI (n = 42–48)
Patients with SCA	r	P-valuea	r	P-valuea	r	P-valuea
Age	−0.426	0.005	−0.370	0.011	−0.304	0.036
WFAZ	0.491	0.002	0.426	0.006	0.367	0.016
HFAZ	0.548	<0.001	0.417	0.007	0.332	0.028
Peripheral O2 saturation	−0.043	0.792	−0.088	0.572	0.037	0.810
Hemoglobin	−0.084	0.620	0.059	0.719	−0.264	0.088
	Est. IQ (n = 25–27)		WMI (n = 27–29)		PSI (n = 30–33)
Unaffected children	r	P-valuea	r	P-valuea	r	P-valuea
Age	−0.216	0.279	−0.069	0.721	−0.287	0.106
WFAZ	0.036	0.865	−0.179	0.371	0.160	0.398
HFAZ	0.239	0.250	0.126	0.531	0.450	0.012
Peripheral O2 saturation	0.086	0.703	−0.157	0.464	0.045	0.823

^aPearson correlation.