Table 4.

Number of children with three or more consecutive Peabody Picture Vocabulary Test (PPVT) measures.

Age level, years;month	Overall, n		Girls, n		Boys, n
	Unaffected	Affected	Unaffected	Affected	Unaffected	Affected
2–2;11	28	3	16	2	12	1
3–3;11	64	23	43	13	21	10
4–4;11	89	65	53	19	36	46
5–5;11	98	101	53	35	45	66
6–6;11	118	111	64	40	54	71
7–7;11	101	115	53	39	48	76
8–8;11	101	111	51	36	50	75
9–9;11	74	102	37	37	37	65
10–10;11	51	89	25	32	26	57
11–11;11	49	83	27	24	22	59
12–12;11	50	57	23	15	27	42
13–13;11	36	57	17	13	19	44
14–14;11	40	51	21	14	19	37
15–15;11	25	41	12	15	13	26
16–16;11	24	27	15	7	9	20
17–17;11	18	17	9	7	9	10
18–18;11	13	10	7	7	6	3
19–19;11	—	—	—	—	—	—
20–20;11	—	—	—	—	—	—

Note. Em dashes indicate data not available. In these age levels, it was not possible for children to have three PPVT measures given that the PPVT was administered annually.