Table 4.

Association between Acute Leukemia and maternal nutrient concomitant intakes by child sex.

	(Ca, Co)	Nutrient concomitant intakes
		Negative	Positive
		OR (95% CI)
All	(109, 252)	0.23 (0.15,0.71)	1.55 (0.68,3.56)
Girls	(57, 100)	0.17 (0.03,0.88)	1.00 (0.49,2.02)
Boys	(52, 152)	–	–
Interaction	(109, 252)	0.13 (0.02,0.74)	1.19 (0.24,5.80)

In the body of the table, we show associations (odds ratios and 95% confidence intervals) between the respective concomitant intake (positive or negative) and childhood leukemia in the whole sample and by sex, that were adjusted by: residence, person/room ratio, breastfeeding, maternal age at pregnancy, as well as maternal tobacco and alcohol consumption and supplement use of iron and vitamins during pregnancy. In the case of boys, the above models did not converge due to lack of sufficient relevant odds ratios (given by their magnitude and standard error) between each nutrient and acute leukemia. On the bottom line of the table, the odds ratios and 95% confidence intervals of the interaction term are presented between: negative (continuous) concomitant intake and sex (categorical), as well as positive (continuous) concomitant intake and sex (categorical). Each energy adjusted nutrient intake was log-transformed and classified as quintiles. Bold and shadowed numbers correspond to case-control OR differences > or <1.00 with P-value <0.05.