Table 3 UC parameters from preterm and term delivery.

From: Automatic recognition of uterine contractions with electrohysterogram signals based on the zero-crossing rate

UC parameter

Preterm delivery (n = 4)

Term delivery (n = 50)

Number of UC from EHG (times)

26

399

Frequency of UC from EHG (times/10 min)

3.253 ± 0.862

3.155 ± 0.931

Duration of UC from EHG (min)

0.783 ± 0.469

0.609 ± 0.210

Interval of UC from EHG (min)

3.234 ± 0.933

3.138 ± 1.100

Number of UC from TOCO (times)

26

391

Frequency of UC from TOCO (times/10 min)

3.358 ± 0.574

3.132 ± 0.873

Duration of UC from TOCO (min)

0.610 ± 0.125

0.625 ± 0.162

Interval of UC from TOCO (min)

4.916 ± 4.077

3.139 ± 1.329

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