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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.