Table 5.

Executive function measures stratified by FMR1 CGG repeat length and age group: sample sizes and mean scores.

Repeat Group (# CGGs)	NC: <55			Low PM: 55-70			Mid PM: 71-100			High PM: >100
Age Group (years)	<30	30-49	≥50	<30	30-49	≥50	<30	30-49	≥50	<30	30-49	≥50
N	41	99	73	6	5	7	6	18	25	6	16	10
COWAT	40.60	43.91	40.12	47.78	47.01	33.16	36.25	41.42	35.37	38.91	44.02	32.27
Stroop	76.58	68.47	61.87	80.93	59.47	58.47	70.86	70.02	58.99	76.14	65.00	44.50
Backward digit span	7.85	7.49	7.03	10.24	5.87	5.86	8.51	7.61	6.50	5.39	7.59	5.10
Letter-number sequencing	12.11	11.98	11.16	13.73	10.26	9.64	11.85	13.08	10.48	10.81	12.00	9.01

NC=non-carrier; PM=premutation carrier; COWAT=Controlled Oral Word Association Test