Indicators	Groups	Mean	95% Confidence Interval	Median	95% Confidence Interval	P-value
Age	ADHD	9.14 ± 0.99	[8.76:9.46]	9.00 ± 4.00	[9.00:10.00]	0.343
Age	Control	9.34 ± 0.97	[8.97:9.69]	9.00 ± 4.00	[9.00:10.00]	0.343
BMI	ADHD	16.69 ± 3.09	[15.60:17.93]	15.80 ± 14.10	[14.90:18.10]	0.882
BMI	Control	16.86 ± 3.44	[15.69:18.33]	15.90 ± 14.40	[14.80:18.00]	0.882
Weight	ADHD	31.03 ± 9.21	[28.15:35.14]	29.00 ± 48.00	[26.50:32.00]	0.382
Weight	Control	32.31 ± 8.94	[29.38:36.24]	30.00 ± 41.00	[27.51:32.00]	0.382
Height	ADHD	135.45 ± 8.37	[132.74:138.70]	133.00 ± 39.00	[131.00:138.00]	0.065
Height	Control	137.78 ± 6.33	[135.35:140.19]	137.00 ± 25.50	[133.75:140.00]	0.065
Mother’s age	ADHD	36.00 ± 4.83	[34.45:37.71]	35.00 ± 18.00	[33.00:38.00]	0.958
Mother’s age	Control	36.24 ± 5.13	[34.33:38.20]	36.00 ± 21.00	[33.00:40.00]	0.958
Number of family members	ADHD	4.48 ± 0.69	[4.22:4.72]	5.00 ± 2.00	[4.00:5.00]	0.677
Number of family members	Control	4.52 ± 0.87	[4.17:4.81]	5.00 ± 3.00	[5.00:5.00]	0.677
EQ score	ADHD	52.28 ± 6.17	[50.00:54.45]	52.00 ± 28.00	[48.00:56.00]	<0.001
EQ score	Control	59.24 ± 5.68	[57.22:61.39]	58.00 ± 19.00	[56.00:62.00]	<0.001
FSIQ	ADHD	85.66 ± 16.81	[79.80:92.27]	80.00 ± 61.00	[75.00:93.97]	<0.001
FSIQ	Control	110.17 ± 20.40	[102.52:118.24]	117.00 ± 76.00	[99.00:123.00]	<0.001
Pb level	ADHD	1.39 ± 0.76	[1.12:1.67]	1.50 ± 2.93	[1.06:1.70]	0.003
Pb level	Control	0.81 ± 0.48	[0.64:1.00]	0.70 ± 1.59	[0.49:0.86]	0.003