Table I.

Baseline characteristics by leukemia subtype.

	No. of controls (%)	No. of all cases (%)	OR (95%CI)	No. of ALL cases (%)	OR (95%CI)	No. of AML cases (%)	OR (95%CI)
Mother’s Race
White	152 (88.4)	126 (79.7)	1.0	79 (81.4)	1.0	47 (77.0)	1.0
Non-white	20 (11.6)	32 (20.3)	1.93 (1.05–3.54)	18 (18.6)	1.73 (0.87–3.46)	14 (23.0)	2.26 (1.06–4.83)
Mother’s Age
<35 years	120 (69.8)	95 (60.1)	1.0	63 (64.9)	1.0	32 (52.5)	1.0
≥35 years	52 (30.2)	63 (39.9)	1.53 (0.97–2.41)	34 (35.1)	1.25 (0.73–2.11)	29 (47.5)	2.09 (1.15–3.81)
Mother’s Education
≤High school	41 (23.8)	62 (39.2)	1.0	40 (41.2)	1.0	22 (36.1)	1.0
>High school	131 (76.2)	96 (60.8)	0.49 (0.30–0.78)	57 (58.8)	0.45 (0.26–0.76)	39 (63.9)	0.56 (0.30–1.04)
Household Income
≤$30,000	57 (33.1)	57 (36.5)	1.0	37 (38.5)	1.0	20 (33.3)	1.0
$30,001–50,000	41 (23.8)	43 (27.6)	1.05 (0.60–1.84)	22 (22.9)	0.83 (0.43–1.60)	21 (35.0)	1.46 (0.70–3.04)
>$50,000	74 (43.0)	56 (35.9)	0.76 (0.46–1.25)	37 (38.5)	0.77 (0.44–1.36)	19 (31.7)	0.73 (0.36–1.50)
Index child’s gender
Male	90 (52.0)	85 (53.8)	1.0	57 (58.8)	1.0	28 (45.9)	1.0
Female	83 (48.0)	73 (46.2)	0.93 (0.60–1.44)	40 (41.2)	0.76 (0.46–1.26)	33 (54.1)	1.28 (0.71–2.30)
Index child’s age at interview date*
< 4 years	52 (30.1)	55 (34.8)		14 (14.4)		41 (67.2)
4–5 years	39 (22.5)	44 (27.8)		27 (27.8)		17 (27.9)
6–8 years	29 (16.8)	30 (19.0)		27 (27.8)		3(4.9)
≥ 9 years	53 (30.6)	29 (18.4)		29 (29.9)		0(0.0)
Any Inflammation Condition (of 14)
No	65 (37.6)	70 (44.3)	-	49 (50.5)	-	21 (34.4)	-
Yes	108 (62.4)	88 (55.7)	-	48 (49.5)	-	40 (65.6)	-
Any Inflammation Condition (of 5)
No	78 (45.1)	81 (51.3)	-	56 (57.7)	-	25 (41.0)	-
Yes	95 (54.9)	77 (48.7)	-	41 (42.3)	-	36 (59.0)	-

^*Not evaluated for relationship to leukemia since it was a frequency matching factor