Table 1.

CD33 and other genes with childhood intelligence (3), cognitive performance (4), and educational attainment (5)

Gene	SNP	EA	NEA	Childhood intelligence (3)		Cognitive performance (4)		College (5)		EduYears (5)
				β	P	β	P	OR	P	β	P
PPARG	rs1801282	C	G	0.0358	0.07239	0.008793028	0.1697	1.011	0.4248	0.007	0.2028
COX-2	rs20417	C	G	−0.0418	0.01937	0.006811218	0.2852	0.998	0.8611	0.004	0.4291
EBF1	rs2149954	T	C	0.0172	0.1956	−0.005993436	0.1847	0.982	0.06918	−0.005	0.2409
PON1	rs2618516	T	C	0.0049	0.7088	−0.002542563	0.5677	1.006	0.5344	0.001	0.7542
CAPN10	rs2975760	T	C	NA	NA	−0.005909398	0.3185	0.997	0.7958	−0.005	0.3262
CD33	rs3865444	A	C	−0.0261	0.05591	0.002334702	0.6175	1.006	0.5284	0.004	0.9683
AGT	rs699	A	G	−0.0087	0.5064	0.003005322	0.5058	1	0.9952	0.004	0.28
CYP3A5	rs776746	T	C	−0.0082	0.7499	−0.004371438	0.6054	0.998	0.8997	−0.008	0.1766
TCF7L2	rs7903146	T	C	−0.0134	0.3487	0.003007023	0.5317	1.001	0.9588	0.003	0.4435
SCG2	rs1017448	T	C	0.0167	0.7019	NA	NA	NA	NA	NA	NA

β, Regression coefficient; College, a binary variable for college completion; EA, effect allele; EduYears, a quantitative variable for an individual’s years of schooling; NA, not available; NEA, not effect allele; OR, odds ratio. For all the tests, the significance level is 0.05.