Table 5.

Association of Conotruncal Heart Defects with Neighborhood-Level SES Measures^a

		d-Transposition of the great arteries		Tetralogy of Fallot
	Number of controls (n = 617)	Number of cases (n = 125)	OR (95% CI)	Number of cases (n = 152)	OR (95% CI)
Education
Q4	154	25	0.7 (0.4–1.3)	33	0.7 (0.4–1.1)
Q3	154	37	1.1 (0.6–1.8)	37	0.8 (0.5–1.2)
Q2	154	28	0.8 (0.5–1.4)	33	0.7 (0.4–1.1)
Q1	155	35	Reference	49	Reference
Poverty
Q4	152	29	0.7 (0.4–1.1)	38	0.8 (0.5–1.2)
Q3	155	22	0.5 (0.3–0.9)	27	0.5 (0.3–0.9)
Q2	155	30	0.7 (0.4–1.1)	35	0.7 (0.4–1.1)
Q1	155	44	Reference	51	Reference
Unemployment
Q4	152	23	0.7 (0.4–1.3)	38	0.9 (0.6–1.5)
Q3	155	36	1.3 (0.7–1.9)	33	0.8 (0.5–1.3)
Q2	154	34	1.1 (0.6–1.8)	37	0.8 (0.5–1.4)
Q1	156	32	Reference	43	Reference
Operator/laborer occupation
Q4	154	31	0.8 (0.6–1.6)	31	0.7 (0.4–1.1)
Q3	154	36	1.1 (0.7–1.9)	40	0.9 (0.5–1.5)
Q2	153	25	0.8 (0.4–1.4)	34	0.8 (0.5–1.2)
Q1	156	33	Reference	46	Reference
Crowding
Q4	154	26	0.8 (0.5–1.4)	29	0.7 (0.4–1.2)
Q3	154	32	1.0 (0.6–1.7)	40	1.0 (0.6–1.6)
Q2	153	34	1.1 (0.6–1.8)	40	1.0 (0.7–1.6)
Q1	156	33	Reference	42	Reference
Rental occupancy
Q4	153	26	0.7 (0.4–1.3)	50	1.2 (0.8–1.9)
Q3	155	29	0.8 (0.5–1.4)	25	0.6 (0.3–1.0)
Q2	153	34	1.0 (0.6–1.6)	34	0.8 (0.5–1.4)
Q1	156	36	Reference	42	Reference
Neighborhood-level SES indexb
0	297	68	Reference	69	Reference
1–3	200	40	0.9 (0.6–1.3)	57	1.2 (0.8–1.8)
4–6	120	17	0.6 (0.4–1.1)	26	0.9 (0.6–1.5)

^aSee Methods for definitions of each measure. Higher quartile scores reflect worse SES. A separate model was run for each SES measure.

^bTo create the index, each measure was scored as 1 if in the highest quartile or as 0 otherwise. The values were then summed, such that a higher value on the index reflects worse SES.

SES, socioeconomic status; OR, odds ratio; CI, confidence interval.