Table 2.

Spearman correlations [$r_{\mathrm{S}}$ (p-value)] for selenium measurements at gestational week 14, 5 y, and 10 y ($n=1167-1408$).

	Ery-Se GW14	U-Se 5 y	U-Se 10 y	Hair Se 10 y
Hair Se 10 y	0.13 ($<0.001$)	0.19 ($<0.001$)	0.23 ($<0.001$)	1.0
U-Se 10 y	0.069 (0.012)	0.26 ($<0.001$ )
U-Se 5 y	0.14 ($<0.001$)
Full developmental score 5 y	0.049 (0.080)	0.13 ($<0.001$)	NA	NA
Verbal score 5 y	0.033 (0.24)	0.11 ($<0.001$)	NA	NA
Performance score 5 y	0.056 (0.048)	0.10 ($<0.001$)	NA	NA
HAZ 5 y	0.019 (0.50)	0.15 ($<0.001$)	NA	NA
WAZ 5 y	$-0.037$ (0.19)	0.10 ($<0.001$)	NA	NA
Full developmental score 10 y	0.058 (0.031)	0.17 ($<0.001$)	0.11 ($<0.001$)	0.12 ($<0.001$)
Verbal comprehension 10 y	0.025 (0.35)	0.14 ($<0.001$)	0.12 ($<0.001$)	0.13 ($<0.001$)
Perceptual reasoning 10 y	0.050 (0.063)	0.18 ($<0.001$)	0.10 ($<0.001$)	0.10 ($<0.001$)
Working memory 10 y	0.052 (0.090)	0.12 ($<0.001$)	0.078 (0.0047)	0.11 ($<0.001$)
Processing speed 10 ya	0.066 (0.013)	0.11 ($<0.001$)	0.057 (0.039)	0.053 (0.053)
HAZ 10 y	$-0.0081$ (0.6)	0.13 ($<0.001$)	0.11 ($<0.001$)	0.071 (0.0099)
WAZ 10 y	$-0.0023$ (0.93)	0.13 ($<0.001$)	0.094 ($<0.001$)	0.087 (0.0015)

Note: Ery-Se, erythrocyte selenium; GW, gestational week; Hair Se, hair selenium; HAZ, height-for-age z-score; NA, not applicable; U-Se, urinary selenium; WAZ, weight-for-age z-score.

^aHigher processing speed indicates faster response time.