Table 3 Pearson’s correlation analysis of SNAP-IV scores rating (teachers) and the heart rate variability parameters
| Â | Inattention subscale score | Hyperactivity/impulsivity subscale score | ODD subscale score | ADHD subscale score | SNAP-IV total score |
|---|---|---|---|---|---|
All | |||||
 LF | −0.023 (0.822) | 0.069 (0.493) | 0.064 (0.525) | 0.030 (0.765) | 0.046 (0.645) |
 HF | 0.085 (0.398) | 0.170 (0.088) | 0.140 (0.161) | 0.149 (0.134) | 0.154 (0.122) |
 LF % | −0.275* (0.005) | −0.189 (0.058) | −0.164 (0.100) | −0.263* (0.008) | −0.236* (0.017) |
 LF/HF | −0.380** (0.000) | −0.431** (0.000) | −0.359** (0.000) | −0.469** (0.000) | −0.446** (0.000) |
Boys | |||||
 LF | 0.035 (0.810) | 0.069 (0.631) | 0.063 (0.661) | 0.045 (0.752) | 0.033 (0.812) |
 HF | 0.209 (0.141) | 0.249 (0.078) | 0.227 (0.110) | 0.227 (0.110) | 0.205 (0.148) |
 LF % | −0.290* (0.039) | −0.314* (0.025) | −0.271 (0.054) | −0.303* (0.031) | −0.288* (0.040) |
 LF/HF | −0.331* (0.020) | −0.342* (0.014) | −0.297* (0.038) | −0.338* (0.011) | −0.318* (0.026) |
Girls | |||||
 LF | 0.257 (0.068) | −0.024 (0.866) | 0.184 (0.195) | 0.133 (0.353) | 0.162 (0.257) |
 HF | 0.151 (0.219) | 0.112 (0.432) | 0.202 (0.156) | 0.157 (0.270) | 0.185 (0.746) |
 LF % | 0.045 (0.753) | −0.238 (0.092) | 0.096 (0.504) | −0.124 (0.386) | 0.121 (0.397) |
 LF/HF | 0.045 (0.752) | −0.246 (0.081) | −0.155 (0.276) | −0.129 (0.367) | 0.110 (0.444) |