TABLE 3.

Comparison of Motor Skills on the BOT-2 in XXY and XXYY

BOT-2	XXY	XXYY	T-test and Fisher’s Exact Test p-value
N	46	20
Fine Manual Control Mean (SD)	48.5 (12.6)	41.3 (11.7)	0.032*
% Below Average	31.1%^	60.0%^	0.053
Fine Motor Precision Mean (SD)	49.1 (10.3)	42.3 (11.0)	0.019*
% Below Average	26.1%	60.0%^	0.013*
Fine Motor Integration Mean (SD)	50.8 (9.7)	46.2 (10.9)	0.094
% Below Average	15.2%	50.0%^	0.005*
Manual Coordination Mean (SD)	45.00 (9.37)	34.2 (13.8)	<0.001**
% Below Average	29.5%^	70.0%^	0.006*
Manual Dexterity Mean (SD)	42.4 (8.7)	37.3 (8.6)	0.040*
% Below Average	54.3%^	65.0%^	0.589
Upper Limb Coordination Mean (SD)	50.3 (9.4)	43.8 (9.9)	0.013*
% Below Average	15.9%	55.0%^	0.002**
Body coordination Mean (SD)	46.4 (9.7)	34.9 (13.6)	<0.001**
% Below Average	32.6%^	77.8%^	0.002**
Bilateral Coordination Mean (SD)	46.5 (9.4)	40.1 (8.4)	0.013*
% Below Average	32.6%^	47.7%^	0.393
Balance Mean (SD)	49.1 (10.5)	41.3 (11.8)	0.016*
% Below Average	20.9%	61.1%^	0.006*
Strength & Agility Mean (SD)	46.0 (9.2)	38.6 (5.8)	0.003**
% Below Average	19.0%	64.7%^	0.002**
Running Speed & Agility Mean (SD)	48.3 (8.8)	38.5 (5.9)	<0.001**
% Below Average	26.2%	52.9%^	0.069
Strength Mean (SD)	46.8 (8.1)	39.8 (7.0)	0.002**
% Below Average	23.8%	50%^	0.069
Total Motor Composite Mean (SD)	45.7 (9.5)	38.11 (7.63)	0.005*
% Below Average	26.2%	64.7%^	0.008*

^{^}p<0.05 comparing XXY or XXYY to the normative sample (where 25% are classified in the “below average” range)

^*p<0.05 for T-tests and Fisher’s exact tests comparing XXY to XXYY

^**p<0.0038 for T-tests and Fisher’s exact tests comparing XXY to XXYY (Bonferroni correction for multiple comparisons)