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Table 2 Mean values ± SEM of HR, SaO2, TOI and THI during the first 15 minutes (min) and 12–24 hours (mean 21 h) after birth, mean difference, 95% confidence interval (CI) of the difference p-value (significant p < .05 by Mann–Whitney U test)

From: Changes in cerebral oxygenation during early postnatal adaptation in newborns delivered by vacuum extraction measured by near-infrared spectroscopy

   0-5 min 5-10 min 10-15 min 21 h
  Mean ± SEM 95% CI P-value Mean ± SEM 95% CI P-value Mean ± SEM 95% CI P-value Mean ± SEM 95% CI P-value
  Vacuum 65 ± 3    69 ± 8    68 ± 3    67 ± 6   
TOI (%) C-section 53 ± 3    67 ± 3    69 ± 4    68 ± 2   
  Difference 11.6 ± 6.3 −1.4 to 24.9 0.03 2.4 ± 4.6 −7.1 to 11.9 0.35 −0.5 ± 5 –10.7 to 9.8 0.99 −0.5 ±4.4 −9.8 to 9 0.67
  Vacuum 55 ± 10    56 ± 9    56 ± 9    52 ± 7   
THI (μM) C-section 47 ± 9    42 ± 7    34 ± 5    36 ± 7   
  Difference 8.6 ± 16 –25.1 to 42.4 0.27 13.7 ± 11.8 −10.5 to 37.8 0.17 22.1 ± 9.3 −2.9 to 41.2 0.04 16.8 ± 10.2 −5.1 to 38.6 0.11
  Vacuum 169 ± 4    166 ± 18    158 ± 7    118 ± 5   
HR (/min) C-section 155 ± 5    152 ± 3    157 ± 4    114 ± 16   
  Difference 14.1 ± 9.1 −5.2 to 33.3 0.19 13.9 ± 6.4 −0.7 to 27.1 0.06 −0.4 ± 7.1 −14.2 to 15 0.83 3.9 ± 12.4 −24.3 to 32.0 0.69
  Vacuum 95 ± 1    95 ± 2    95 ± 1    94 ± 1   
SaO 2 (%) C-section 70 ± 4    87 ± 2    93 ± 1    97 ± 2   
  Difference 24.4 ± 828 6.9 to 41.8 0.001 9.7 ± 2.6 3.3 to 14.1 0.002 2.6 ± 1.7 −0.9 to 6.1 0.18 −3.0 ± 1.7 −6.8 to 0.8 0.19