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. 2019 Aug 6;11:17. doi: 10.1186/s11689-019-9278-9

Table 1.

Demographic information

Demographic measure Group
STXBP1 all (n = 14) STXBP1 full dataset (n = 8) ID all (n = 33) ID low ability (n = 8)
Age Mean (SD) 9.93 (5.837) 13.63 (2.326) 13.91 (5.553) 14.88 (3.271)
Range (years) 1–17 10–17 5–25 8–18
Gender % females(n) 71.4 (10) 62.5 (5) 51.5 (17) 62.5 (5)
SES** Median (SD, range) 6.5 (2.51, 2–10) 7 (1.96, 4–10) 6 (2.33, 1–10) 6.5 (1.98, 3–9)
Epilepsy (ever) % (n) 92.9 (13) 87.5 (7) 39.4 (13) 50 (4)
Epilepsy (current) % (n) 92.3 (12) 85 (6) 62 (8) 75 (3)
Epilepsy age of onset Mean (SD) 49.67 (67.059) 84.14 (70.115) 70.73 (76.352) 12.67 (9.866)
Range (months) 1–156 1–156 1–204 6–24
Global intellectual ability Mean (SD) 45.86 (14.992) 41.0 (12.13) 58.3 (15.661)# 48.0 (9.592)
Range 26–69 31–67 20–96 36–68

**SES calculated using ‘English Indices of Deprivation’ (2015)

#Comparison to STXBP1 full dataset group, Mann-Whitney U test, P < 0.05