Table 5.

Mean and SD of scores for the original ABC-C subscales and new subscales recommended for individuals with FXS by age and sex

Age	n	Original subscales
		Subscale II Irritability		Subscale II Lethargy		Subscale III Stereotypy		Subscale IV Hyperactivity		Subscale V Inapp. Speecha
		Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Males
3–5	71	11.42	8.75	5.08	5.43	4.76	3.95	18.77	10.27	2.80	2.77
6–7	74	12.38	9.13	6.86	6.66	5.27	4.82	21.80*	10.49	3.96***	2.94
8–9	58	12.10	9.44	6.62	6.00	5.91***	4.70	18.81*	9.78	4.40***	2.78
10–11	66	11.74	8.70	7.05*	6.38	5.89***	4.74	17.00	8.91	4.97***	2.88
12–13	49	13.00*	10.54	7.94*	7.45	5.12***	4.87	19.43***	10.97	5.02***	3.00
14–15	51	8.04	8.19	6.37	5.88	4.98*	4.78	12.96	9.22	4.10***	3.28
16–17	21	7.76	9.17	10.57*	9.26	4.76*	4.48	12.38	10.80	5.05***	3.58
18+	69	8.28	9.20	8.75	7.12	4.52**	4.81	11.36*	9.80	5.10***	3.41
Total	459	10.86	9.25	7.10	6.67	5.18	4.64	17.03	10.53	4.33	3.11
Females
3–5	11	9.73	7.63	6.27	7.36	1.09	1.76	10.64	8.56	2.36	2.25
6–7	24	9.04	9.14	2.67	4.90	3.29	4.96	10.88	10.93	2.79	3.22
8–9	29	7.31	5.93	4.00	4.42	1.79	2.80	6.52	6.63	1.41	1.35
10–11	29	11.41	9.73	5.41	4.97	2.59*	3.46	14.03*	9.95	4.00***	3.21
12–13	23	7.04	7.39	5.87	6.98	2.26	3.95	7.26	8.11	2.22	3.23
14–15	13	6.31	9.90	4.23	5.37	1.38	1.94	6.77	8.78	2.15	3.24
16–17	15	2.00	2.51	5.87	6.17	1.13	2.26	3.73	4.57	.60	.99
18+	27	7.26	9.29	6.67	8.20	1.26	2.05	4.89	5.90	1.96	3.04
Total	171	7.82	8.36	5.05	6.10	1.98	3.26	8.29	8.74	2.29	2.87
Age	n	New FXS-specific subscales
		Irritability		Socially Unresponsive/Lethargic		Hyperactivity		Inappropriate Speech		Social Avoidance
		Mean	SD	Mean	SD	Mean	SD	Mean	SD	Mean	SD
Males
3–5	71	14.97	11.01	4.63	4.51	13.68	7.29	2.80	2.77	1.61	2.33
6–7	74	16.88	11.23	5.61	5.38	15.58	7.07	3.96	2.94	2.36	2.67
8–9	58	16.22	11.77	5.12	4.53	13.21	6.74	4.40	2.78	2.41	2.94
10–11	66	15.70	10.96	5.24	4.36	11.24	5.88	4.97	2.88	2.76	2.91
12–13	49	17.53	12.92	6.10	6.17	13.04	7.30	5.02	3.00	2.86	3.10
14–15	51	10.71	10.15	3.55	3.95	9.31	6.57	4.10	3.28	2.82	2.96
16–17	21	10.52	11.62	6.43	7.17	8.19	7.39	5.05	3.58	4.62	3.87
18+	69	10.45	11.66	4.93	5.56	7.86	6.40	5.10	3.41	4.00	3.15
Total	459	14.46	11.62	5.10	5.10	11.90	7.24	4.33	3.11	2.76	2.99
Females
3–5	11	12.09	9.54	4.55	5.37	7.00	6.16	2.36	2.25	2.73	3.61
6–7	24	11.29	11.22	3.04	4.49	7.42	7.57	2.79	3.22	.50	1.29
8–9	29	8.62	7.19	2.48	2.75	4.45	4.76	1.41	1.35	2.07	2.28
10–11	29	14.59	11.65	4.45	4.02	9.24	6.92	4.00	3.21	1.97	2.50
12–13	23	7.83	9.04	4.13	5.29	5.00	5.58	2.22	3.23	2.48	2.98
14–15	13	7.85	12.35	2.69	3.92	4.31	5.06	2.15	3.24	1.62	2.47
16–17	15	2.27	3.22	3.40	4.60	2.80	3.34	.60	.99	2.33	2.82
18+	27	8.15	11.00	4.07	5.53	2.74	3.10	1.96	3.04	2.85	3.36
Total	171	9.43	10.24	3.60	4.47	5.49	5.92	2.29	2.87	2.04	2.71

Original subscale table displays results from comparison between reference group and total study sample;

^*p<.05 before Benjamini-Hochberg correction,

^**p<.05 with Benjamini-Hochberg correction,

^***p<.01 with Benjamini-Hochberg correction.

Stereotypy scale was the only subscale that was unchanged in this sample, as a result the means and standard deviations were not repeated in the FXS-specific subscale portion of the table

^aAbbreviation for Inappropriate Speech