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Ethnic analogies and differences in fetal heart rate variability signal: A retrospective study

We aimed to analyze computerized cardiotocographic (cCTG) parameters (including fetal heart rate baseline, short‐term variability, Delta, long‐term irregularity [LTI], interval index [II], low frequency [LF], movement frequency [MF], high frequency [HF], and approximate entropy [ApEn]) in physiological term pregnancies in order to correlate them with ethnic differences. The clinical meaning of numerical parameters may explain physiological or paraphysiological phenomena that occur in fetuses of different ethnic origins.