Table 1.

IQ scores from a sample of studies of Turner syndrome from 1962 to present

Study	N	Age (years)	IQ range	IQ group [mean (S.D.)]
Alexander et al. [4]	18	10–24	74–130	101.0	Not reported
Elliott et al. [5]	6	11–15	70–126	99.0	(14.7)
Inozemtseva et al. [6]	15	8–19	71–120	98.3	(15.2)
Keysor et al. [7]	11	12–20	65–126	96.5	(18.0)
Mazzocco [8]	29	5–16	72–135	95.0	(13.5)
Mazzocco et al. [9]	25	7–11	64–136	102.6	(14.5)
Pennington et al. [10]	10	Mean=23	81–106	96.7	(7.4)
Rovet et al. [11]	45	7–16	Not reported	94.5	(16.8)
Russell et al. [12]	50	7–16	Not reported	92.7	(13.5)
Shaffer [1]	20	5–30	Not reported	97.7	(10.5)
Temple and Carney [13]	15	8–12	74–130	95.0	Not reported