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Table 1 Mean ± S.D of plasma levels of Aβ (1-40), Aβ (1-42) and Aβ (40/42) ratio in autistic patients (N = 52) compared to age- matching controls (N = 36).

From: A novel study on amyloid β peptide 40, 42 and 40/42 ratio in Saudi autistics

Parameter

Group

N

Minimum

Maximum

Mean ± S.D

P value

Aβ (1-40)

Control

36

96.45

285.97

185.43 ± 48.76

0.000

 

Autistic

52

84.03

217.1

145.07 ± 28.72

 

Aβ (1-42)

Control

36

55.38

76.54

64.72 ± 5.67

0.000

 

Autistic

51

42.12

79.62

54.86 ± 6.16

 

Aβ (40/42)

Control

36

1.59

4.39

2.86 ± 0.71

0.168

 

Autistic

50

1.41

4.29

2.67 ± 0.58

 
  1. This table describes the independent t-test between the control and autistic groups regarding levels of Aβ (1-40) andAβ (1-42) expressed as pg/mL plasma and Aβ (40/42) ratio. Significant level at p < 0.05.