ECG
ECG was assessed in three studies. Two studies showed no difference in
ECG parameters (respiratory sinus arrhythmia and heart rate variability)
between offspring exposed to ACS and those who were not exposed41 39. One study showed in subgroup
analysis that non-black offspring exposed to ACS had lower heart rate
variability than those not exposed 42. This effect was
greater in
non-black
females compared to non-black males, and no difference was found in
black offspring.