Table 3 Selenium status (mean (SD)) of boys and girls.

Selenium	Time of sampling	Boys	Girls
Plasma selenium, µmol/l	At term	0.47 (0.13)	0.51 (0.17)
	At 6 months GCA	0.70 (0.12)	0.75 (0.15)
Red blood cell selenium, µmol/l	At term	1.59 (0.41)	1.78 (0.37)
	At 6 months GCA	1.27 (0.16)*	1.38 (0.21)
Whole blood selenium, µmol/l	At term	0.80 (0.18)†	0.93 (0.23)
	At 6 months GCA	0.91 (0.10)	0.97 (0.14)

GCA, gestation corrected age.

*p = 0.04, †p = 0.02, boys vs girls.