Table 1.

Baseline demographics for ISS females with and without prior karyotype testing, and those without prior karyotype testing included in our study group. Listed are age, height standard deviation score (SDS), and deficit from mid-parental height (MPH), which is the difference between the patient’s height SDS and their MPH SDS. P-values comparing the three groups are listed, with a p-value <0.05 considered statistically significant.

	Karyotype (n=117)	No karyotype (n=72)	No karyotype study population (n=34)	P-value (karyotype vs no karyotype)	P-value (no karyotype vs no karyotype study population)
Age (years)
Mean	10.5	10.9	10.5	0.488	0.586
Range	3.3 to 18.5	3.2 to 18.6	3.2 to 18.6
Height SDS
Mean	−2.72	−2.58	−2.45	0.022	0.349
Range	−4.98 to −2.0	−4.95 to −2.02	−3.21 to −2.02
Deficit from MPH (SDS)
Mean	−2.28	−1.99	−1.88	0.002	0.652
Range	−4.1 to −1.0	−4.46 to −0.67	−4.46 to −0.67