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Table 4 Differences between karyotypes on eye gaze to faces and affect recognition accounted for age (EMM (SE))

From: The impact of sex chromosome trisomies (XXX, XXY, XYY) on gaze towards faces and affect recognition: a cross-sectional eye tracking study

    47,XXX 47,XXY 47,XYY p-value Post hoc effect Effect size (ηp2)
Eye gaze to faces Condition AOI n = 30 n = 41 n = 15    
Eye gaze to static faces
Proportion first fixations
  Eyes .60 (.05) .69 (.05) .49 (.08) .074   
Eye gaze to static faces
Proportion fixation duration
  Eyes .29 (.03) .40 (.03) .30 (.05) .056   
Eye gaze patterns to single and multiple faces
Proportion fixation duration
Single faces Faces .46(.03) .45 (.03) .40 (.05) .547   
  Eyes .22 (.03) .25 (.03) .17 (.04) .284   
Multiple faces Faces .51 (.03) .51 (.03) .40 (.06) .223   
  Eyes .17 (.02) .18 (.02) .09 (.04) .107   
NEPSY Affect Recognition    n = 28 n = 19 n = 14    
 Raw score    13.56 (.67) 10.55 (.69) 11.98 (1.12) .011 XXY<XXX .14
  1. EMM estimated marginal means, AOI area of interest