TABLE 3.

Intention-to-treat analyses of the blood, behavioral, and EEG variables, examining the effect of treatment condition on EL measures, controlling for BL¹

		Effect of BL value			Effect of treatment condition
Outcome/task	EL variable	F	MSE	Partial η2	F	MSE	Partial η2
Blood	Hb	257.08&	0.34	0.83	10.25%	0.34	0.16
	SF	37.10&	33.59	0.42	10.20%	33.59	0.17
	log10(SF)	53.16&	0.02	0.51	8.72%	0.02	0.15
	sTfR	165.41&	3.80	0.76	0.95	3.80	0.02
	BdFe	125.24&	2.12	0.71	5.43*	2.12	0.10
Behavioral variables
SRT	Median RT	60.43&	1407	0.54	6.18*	1407	0.11
GNG	Median RT	36.82&	1402	0.44	1.86	1402	0.02
ANT	Alerting score	3.47+	2739	0.02	0.33	2739	0.00
	RT, 0 cues	61.67&	3687	0.29	0.06	3867	0.00
	RT, 2 cues	53.22&	3971	0.26	0.02	3971	0.00
	Orienting score	0.06	2124	0.00	4.82*	2124	0.04
	RT, center cues	60.03&	3520	0.28	0.30	3520	0.00
	RT, spatial cues	76.04&	2952	0.33	1.96	2952	0.01
	Conflict score	10.04%	2029	0.06	0.11	2029	0.00
	RT, consistent flankers	82.11&	3352	0.35	0.10	3352	0.00
	RT, inconsistent flankers	77.86&	3609	0.34	14.26&	3609	0.09
SMS	RT intercept, new items	2.21	13,105	0.04	13.40&	13,105	0.22
	RT intercept, old items	13.36&	13,852	0.22	21.69&	13,852	0.29
	RT slope, new items	0.53	358	0.01	11.47%	358	0.19
	RT slope, old items	0.05	814	0.00	9.79%	814	0.17
CRT	Sensitivity, 4-cue trials	9.28%	0.20	0.15	63.45&	0.20	0.55
	Criterion, 4-cue trials	3.64+	0.10	0.07	10.55%	0.10	0.17
	RT, 4-cue trials, new items	15.56&	10,230	0.24	28.49&	10,230	0.37
	RT, 4-cue trials, old items	18.22&	10,748	0.27	9.42%	10,748	0.16
	Percentage change in capacity	0.86	2349	0.02	22.88&	2349	0.32
EEG variables
SRT	N1 amplitude, central	1.49	1.36	.08	17.23&	1.36	0.49
	P2 amplitude, central	0.73	0.05	0.11	2.75+	0.05	0.27
	α-power, central	7.90%	0.01	0.17	10.80%	0.01	0.22
GNG	N1 amplitude, central	13.86&	4.19	0.22	3.28*	4.19	0.08
	P2 amplitude, central	11.78%	6.15	0.29	0.95	6.15	0.03
	α-power, central	7.47*	0.001	0.20	0.44	0.001	0.02
ANT	N1 amplitude, parietal, 0 cues	16.85&	1.71	0.30	4.69*	1.71	0.11
	N1 amplitude, occipital, 2 cues	33.70&	2.18	0.46	14.05&	2.18	0.27
	N1 amplitude, parietal, central cues	6.48*	1.96	0.14	3.02+	1.96	0.09
	N1 amplitude, parietal, spatial cues	21.73&	0.74	0.35	9.29%	0.74	0.19
	N1 amplitude, occipital, consistent flankers	27.10&	1.72	0.40	30.46&	1.72	0.43
	N1 amplitude, occipital, inconsistent flankers	18.00%	1.71	0.31	33.76&	1.71	0.46
	α-power, central, 2 cues	18.14&	0.002	0.31	3.25+	0.002	0.06
	α-power, central, central cues	30.13&	0.001	0.43	5.79*	0.001	0.13
	α-power, central, spatial cues	20.96&	0.001	0.34	3.16+	0.001	0.09
	α-power, central, consistent flankers	23.31&	0.001	0.37	19.01&	0.001	0.32
	α-power, central, inconsistent flankers	18.83&	0.001	0.32	22.95&	0.001	0.36
SMS	N1 amplitude, central, new items, set size 1	2.00	0.41	0.05	25.56&	0.41	0.84
	N1 amplitude, central, old items, set size 1	3.17+	0.84	0.08	21.71&	0.84	0.74
	N1 amplitude, central, new items, set size 3	1.01	1.06	0.01	29.26&	1.06	0.69
	N1 amplitude, central, old items, set size 3	3.71+	0.49	0.09	36.73&	0.49	0.81
	N1 amplitude, central, new items, set size 6	1.43	0.49	0.01	34.59&	0.49	0.82
	N1 amplitude, central, old items, set size 6	1.16	2.29	0.01	33.45&	2.29	0.46
	γ-power, central, old items, set size 1	55.50&	0.001	0.59	5.27*	0.001	0.12
	γ-power, central, old items, set size 3	9.58%	0.001	0.20	3.27+	0.001	0.07
	γ-power, central, old items, set size 6	20.80&	0.001	0.50	3.42+	0.001	0.08
CRT	N1 amplitude, central, new items, 4 cues	5.90*	1.72	0.13	41.46&	1.72	0.51
	N1 amplitude, central, old items, 4 cues	0.81	2.37	0.02	35.83&	2.37	0.46
	γ-power, central, old items, 4 cues	21.68&	0.001	0.34	68.08&	0.001	0.61

¹ANT, attentional network task; BdFe, body iron; BL, baseline; CRT, cued recognition task; EL, endline; GNG, go/no-go task; Hb, hemoglobin; MSE, mean square error; SF, serum ferritin; SMS, Sternberg memory search task; SRT, simple reaction time task; sTfR, soluble transferrin receptor.

⁺0.05 ≤ P ≤ 0.10; *P < 0.05, ^%P < 0.01, ^&P < 0.001; Df = 1 for all F-scores.