Table 1 Participant characteristics by group at the 10-month assessment, final samples (Mean/SD)

From: Enhanced pupillary light reflex in infancy is associated with autism diagnosis in toddlerhood

Measure HR-ASD (n = 29, 7 girls) HR-no-ASD (n = 118, 62 girls) TD (n = 40, 20 girls) GLM with group as fixed factor
Age (days) 288.31/31.65 283.01/26.80 294.05/25.40 F(2, 184) = 2.532 P = 0.082
MSEL TOTa 101.41/15.50 106.58/15.02 108.35/14.16 F(2, 184) = 1.947 P = 0.146
SESb 3.21/1.35 3.79/1.21 (n = 117) 4.38/1.00 F(2, 183) = 8.219 P < 0.001
  1. a Mullen Scales of Early Learning total score
  2. b Socio-economic status based on parental education on a five level rank scale. While there is a significant difference between groups, this difference does not influence our main results: adding SES as a factor in the analysis did not change the pattern of results