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Table 2 Outcomes for groups based on monitoring method

From: Using fetal scalp stimulation with Doppler ultrasonography to enhance intermittent auscultation in low-resource settings: a diagnostic trial from Tanzania

Variable IAa IA+ FSSTb  
% N % N p-value
Spontaneous vaginal delivery 77% 193 77% 221 0.967
Cesarean delivery 21% 54 20% 57 0.639
Vacuum-assisted vaginal delivery 2% 5 4% 10 0.294
Asphyxia 1% 2 0% 0  
pH < 7.2c 20% 51 15% 39 0.070
pH < 7.1 13% 33 11% 29 0.597
pH < 7.0 6% 16 4% 10 0.236
  1. aIA, intermittent auscultation
  2. bIA + FSST, IA augmented with fetal scalp stimulation test
  3. cAll cases of acidemia also had accompanying base deficit <− 12