From: Heart rate-defined sustained attention in infants at risk for autism
 | High familial risk (n = 21) | Low familial risk (n = 21) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
 | n | \( \overline{X} \) | SD | min | max | n | \( \overline{X} \) | SD | min | max |
Individual-level variables | ||||||||||
 n assessments | 21 | 1.76 | 0.83 | 1 | 3 | 21 | 1.71 | 0.78 | 1 | 3 |
 MSEL Early Learning Score | 21 | 97.62 | 16.26 | 60 | 137 | 21 | 102.86 | 10.96 | 80 | 117 |
 ADOS Severity Score | 20 | 3.95 | 2.76 | 1 | 10 | – | – | – | – | – |
Assessment-level variables | ||||||||||
 Age in months | 37 | 9.80 | 2.43 | 5.98 | 13.41 | 36 | 10.23 | 2.23 | 5.69 | 13.74 |
 Proportion time inattentive | 37 | 0.40 | 0.25 | 0.08 | 0.95 | 36 | 0.43 | 0.22 | 0.03 | 0.81 |
 Proportion time in HRDSA | 37 | 0.30 | 0.21 | 0.00 | 0.92 | 36 | 0.30 | 0.21 | 0.06 | 0.95 |
 IBI change during HRDSA | 34 | 33.38 | 23.53 | 3.96 | 110.47 | 36 | 36.02 | 22.52 | 3.56 | 130.15 |