*3 letters, 1 unpublished manuscript**1 study with 8 South American countries, 1 study with 9 countries including Oceania, North America and Europe***Commentaries and letters#World Bank Income Group C
Interquartile ranges are reported within brackets. Any AC or DC value (for MILD, MODERATE and SEVERE) is statistically different from the corresponding one in Table 3 (p<0.05).
Background Intermittent auscultation (IA) is the technique of listening to and counting the fetal heart rate (FHR) for short periods during active labour and continuous cardiotocography (CTC) implies
