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Table 1 RR interval, QT-Ac interval of measurer 1 and measurer 2, model-based QT interval and difference percentage calculations results

From: Model-based estimation of QT intervals of mouse fetal electrocardiogram

Subject

RR interval (ms)

M1* Q-Ac interval (ms)

M2**Q-Ac interval (ms)

Difference (%) M1–M2

Model-based QT interval (ms)

Difference (%), QT–M1 Q-Ac intervals

Difference (%), QT–M2 Q-Ac intervals

Fetus 1 (n = 69)

264 ± 28

140 ± 12

140 ± 12

0.31

137 ± 8

2

1.7

Fetus 2 (n = 10)

256 ± 0.52

134 ± 5.4

134 ± 3.4

0.22

133 ± 1.9

0.6

0.82

Fetus 3 (n = 111)

273 ± 4

135 ± 5

133 ± 7.4

1.2

139 ± 1.5

4.5

3.2

Fetus 4 (n = 48)

276 ± 1.1

136 ± 6.8

136 ± 5.1

0.12

139 ± 1.2

2.3

2.4

Fetus 5 (n = 71)

390 ± 86

167 ± 16

168 ± 18

0.6

170 ± 20

1.7

2.3

  1. Fetuses 1 and 2 belong to the same mother. Fetuses 3, 4 and 5 belong to the same mother
  2. ms milliseconds, n number of beats
  3. *Measurer 1
  4. **Measurer 2