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. 2021 Sep 30;13:43. doi: 10.1186/s11689-021-09383-0

Table 2.

Reasons for exclusion (A), and statistical comparison of clinical and other characteristics of included and excluded participants (B)

A) Reasons for exclusion
Withdrew from the study after 1stsession Covid-19 related issues

EEG attempted

but unsuccessful

Noisy EEG data Still in intervention
N= 61 8 (13.1%) 13 (21.3%) 31 (50.8%) 7 (11.5%) 2 (3.3%)
B) Age, Sex and cognitive scores
Age Sex IQ (Full scale) IQ (Verbal) IQ (Non-verbal) ADOS severity
Included in analysis (N= 33) 7.54 ± 1 [6.1–9.4]

29(M)

4 (F)

92.9 ± 16 [58–131] 90.4 ± 20 [56–130] 95.5 ± 16 [64–128] 7.78 ± 1.5 [5–10]

Excluded from

analysis (N= 61)

7.46 ± 1 [6–9.5]

50 (M)

11 (F)

83.8 ± 19 [50–124] 75.9 ± 22 [45–128] 92.5 ± 19 [56–143] 8.1 ± 1.7 [3–10]

Difference (two

sampleTtest)

t-stat = 0.1

df = 92

p = 0.87

χ2stat = 0.56

p = 0.45

t-stat = 2.6

df = 92

p = 0.01

t-stat = 3

df = 92

p = 0.003

t-stat = 0.8

df = 92

p = 0.42

t-stat = 0.4

df = 92

p = 0.63