Table 2.

Median and IQR of AFB₁ by covariates in the control group

Characteristics	AFB1-albumin adduct levels* (n=200)	P value†
			Age‡		0.45
<56 years	4.7 (2.5–11.7)
≥56 years	5.5 (2.4–12.3)
Sex		0.24
Male	6.3 (2.7–12.6)
Female	4.7 (2.4–11.5)
Indigenous ethnicity		<0.01
Yes	15.2 (4.3–36.0)
No	4.8 (2.3–9.5)
Department of residence		<0.01
Guatemala and vicinity	4.9 (2.4–10.4)
Other	17.8 (3.4–33.4)
Occupation		0.95
Farmer	4.6 (1.5–33.4)
Other	5.2 (2.5–11.9)
Heavy alcohol consumption		0.20
Yes	4.0 (1.6–6.3)
No	5.1 (2.5–12.2)
Body mass index
<25.0 kg/m2	5.5 (3.2–9.5)	0.40
25.0–29.9 kg/m2	4.7 (2.3–11.3)
≥30 kg/m2	4.7 (2.3–8.8)
HBsAg (+)		0.53
Yes	9.5 (9.5–9.5)
No	5.1 (2.5–11.9)
Anti-HCV (+)
Yes	11.5 (11.5–11.5)	0.44
No	5.1 (2.4–12.1)

*Unit=pg AFB₁-lysine/mg albumin.

†P values were obtained from Wilcoxon test.

‡The median age among controls is 56.

AFB₁, aflatoxin B₁; anti-HCV, antibody to hepatitis C virus; HBsAg, hepatitis B surface antigen.