. Author manuscript; available in PMC: 2020 Sep 1.

Published in final edited form as: Matern Child Health J. 2019 Sep;23(9):1240–1250. doi: 10.1007/s10995-019-02764-x

Table 2.

Unadjusted correlations among model variables

Model variables	1	2	3	4	5	6	7	8	9
1. Iron deficiency severity^a - infancy	-
2. Child dull affect - 5y	.08^*	-
3. Child social reticence - 5y	.06	.40^***	-
4. Low parent responsiveness^b -5y	−.03	15^***	.02	-
5. Low parent academic stim^b -5y	−.02	.15^***	.06	.19^***
6. Low parent language stim^b - 5y	−.02	.20^***	.09^*	.29^***	.44^***	-
7. WPPSI-R verbal abilities - 5y	−.06	−.12^**	−.19^***	−.08^*	−.21^***	−.21^***	-
8. Preschool Language Scales - 5y	−.04	−.16^***	−.20^***	−.09^**	−.29^***	−.21^***	.64^***	-
9. Woodcock-Munoz vocabulary- 5y	−.08^*	−.13^**	−.12^**	−.05	−.20^***	−.13^***	.48^***	.56^***	-
10. WISC-R verbal abilities - 10y	−.04	−.14^***	−.16^***	−.04	−.20^***	−.24^***	.55^***	.56^***	.47^***

Note.

Coded as most severe diagnosis at 6m, 12m, or 18m as: 0 = iron sufficient, 1 = iron deficient, 2 = iron-deficient anemic.

Higher scores indicate lower responsiveness and stimulation.

p < .05.

^**

p < .01.

^***

p < .001.