Preterm labour detection by use of a biophysical marker: the uterine electrical activity

Table 1 Neural network misclassification rates (MR) for the prediction of risk contractions (whole population, learning data + test data)

Weeks of pregnancy	27–28		29–32		33–37
Placenta insertion	Posterior	Anterior	Posterior	Anterior	Posterior	Anterior
BPM algorithm	18%	na	76%	26%	19%	19%
LM algorithm	13%	na	19.5%	18%	12%	11%

BPM, back propagation with momentum algorithm; LM, Levenberg-Marquardt algorithm; na, data not available (too few number of recorded contractions).

ISSN: 1471-2393