Table 3.

Diet of mothers and infants by aflatoxin M₁ in urine

	AFM1 Positive N = 40 N (%)	Negative N = 104 N (%)	P-value$
Mother diet (days per week)€
Tortillas made from maize ≥ 3 days	34 (100.0)	94 (95.9)	0.232
Tamales made from maize ≥ 3 days	9 (26.5)	43 (43.9)	0.074*
Cooked maize or maize dough ≥ 3 days	26 (76.5)	53 (54.1)	0.022*
Coffee-like beverage made from burnt tortilla or toasted maize ≥ 1 day	5 (15.2)	11 (11.2)	0.551
Infant diet#
Breastfeeding	34 (100.0)	97 (99.0)	0.554
Number of times breastfed/day (mean ± SD)	12.21 ± 3.45	12.72 ± 4.14	0.516
Supplemented breastfeeding, other liquids or solid food	17 (50.0)	59 (60.2)	0.300
Age (months) when first began drinking other liquids (mean ± SD)+	6.18 ± 0.53	6.4 ± 0.65	0.183
Age (months) when first began eating solids (mean ± SD)	6.53 ± 0.72	6.67 ± 0.80	0.524
Taking vitamins	7 (41.2)	28 (48.3)	0.606
Number of times consumed solid food (mean ± SD)	3.12 ± 0.93	3.20 ± 1.39	0.819
Number of times consumed tortilla or Tamalito (mean ± SD)	2.18 ± 0.95	2.06 ± 0.93	0.679
Consumption of maize > 165 g per day	18 (45.0)	34 (32.7)	0.168

^$Computed from chi-square tests for categorical variables and t-tests for continuous variables

^€Diet within previous week of interview

^#Within day before interview?

⁺Including infant formula or liquid or powdered cow’s milk

^*P-value significant at < 0.1