Table 2.
Results of the outer and inner pelvic measurement.
| Variables | Vaginal Delivery from Breech | Intrapartum (Secondary) Cesarean | p-Value | adj. p-Value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Mean | SD | Median | 95% CI | N | Mean | Median | 95% CI | |||||
| gestational age at pelvimetry [weeks] | 29 | 36.6 | 0.8 | 37.1 | 36.5; 37.1 | 22 | 36.6 | 0.5 | 37.0 | 36.5; 37.0 | 0.85 | 0.88 | |
| BMI [kg/m²] before pregnancy | 25 | 21.9 | 2.9 | 21.4 | 20.8; 23.0 | 22 | 23.1 | 3.4 | 22.2 | 21.6; 24.6 | 0.14 | 0.58 | |
| BMI [kg/m²] at diagnostics | 25 | 26.7 | 3.3 | 25.8 | 25.4; 28.1 | 22 | 28.7 | 3.9 | 28.6 | 27.1; 30.4 | 0.03 | 0.41 | |
| BMI gain [kg/m²] | 25 | 4.6 | 1.2 | 4.6 | 4.1; 5.1 | 22 | 5.7 | 1.7 | 5.8 | 4.9; 6.4 | <0.001 | 0.04 | |
| MR pelvimetry | obstetrical conjugate [cm] | 29 | 13.1 | 0.7 | 12.9 | 12.86; 13.36 | 22 | 12.8 | 0.9 | 12.8 | 12.45; 13.25 | 0.15 | 0.57 |
| pelvic width [cm] | 29 | 13.8 | 0.9 | 13.9 | 13.49; 14.20 | 22 | 13.5 | 0.9 | 13.3 | 13.12; 13.92 | 0.28 | 0.55 | |
| pelvic constriction [cm] | 29 | 11.7 | 1.1 | 11.7 | 11.28; 12.13 | 22 | 12.0 | 0.8 | 12.1 | 11.65; 12.33 | 0.36 | 0.59 | |
| sacral pelvic outlet diameter [cm] | 29 | 13.6 | 0.7 | 13.7 | 13.36; 13.87 | 22 | 13.4 | 0.9 | 13.4 | 12.99; 13.79 | 0.31 | 0.56 | |
| coccygeal-pelvic outlet [cm] | 29 | 8.6 | 1.1 | 8.6 | 8.15; 8.96 | 22 | 8.7 | 0.9 | 8.7 | 8.32; 9.10 | 0.99 | 0.99 | |
| interspinous distance [cm] | 29 | 11.2 | 0.7 | 11.3 | 10.91; 11.47 | 22 | 10.9 | 1.0 | 11.0 | 10.46; 11. 31 | 0.13 | 0.58 | |
| intertuberous distance [cm] | 29 | 14.3 | 1.1 | 14.2 | 13.93; 14.74 | 22 | 13.9 | 1.4 | 14.2 | 13.23; 14.51 | 0.36 | 0.57 | |
| Pelvimeter | external conjugate [cm] | 29 | 23.9 | 2.2 | 24.0 | 23.01; 24.71 | 21 | 23.6 | 2.3 | 24.0 | 22.52; 24.61 | 0.76 | 0.92 |
| distantia spinarum [cm] | 29 | 24.3 | 1.8 | 25.0 | 23.67; 25.02 | 21 | 23.7 | 1.6 | 24.0 | 22.98; 24.43 | 0.07 | 0.61 | |
| distantia intercristarum [cm] | 29 | 27.8 | 1.6 | 28.0 | 27.15; 28.37 | 21 | 28.0 | 2.5 | 27.5 | 26.83; 29.10 | 0.86 | 0.63 | |
| distantia trochanterica [cm] | 29 | 33.2 | 2.3 | 33.0 | 32.28; 34.06 | 20 | 33.1 | 2.6 | 32.1 | 31.85; 34.30 | 0.58 | 0.79 | |
| 3D bodyscan | waist to high hip back (5070) [cm] | 25 | 7.7 | 1.5 | 7.6 | 1.06; 8.32 | 22 | 7.1 | 1.5 | 7.4 | 6.47; 7.83 | 0.25 | 0.55 |
| distance waistband to high hip back (5075) [cm] | 25 | 4.1 | 2.7 | 4.0 | 2.95; 5.15 | 22 | 4.2 | 1.9 | 4.2 | 3.33; 4.97 | 0.89 | 0.94 | |
| waist to buttock (5080) [cm] | 25 | 21.7 | 1.6 | 21.7 | 21.02; 22.31 | 22 | 21.2 | 1.7 | 21.1 | 20.50; 21.97 | 0.34 | 0.58 | |
| distance waistband to buttock (5085) [cm] | 25 | 17.3 | 2.9 | 17.3 | 16.12; 18.48 | 22 | 17.2 | 2.0 | 17.2 | 16.31; 18.10 | 0.86 | 0.93 | |
| scrotch length, rear (6012) [cm] | 25 | 42.9 | 2.8 | 42.6 | 41.74; 44.01 | 22 | 43.1 | 2.6 | 42.7 | 41.98; 44.25 | 0.82 | 0.96 | |
| scotch length at waistband (6015) [cm] | 25 | 69.9 | 10.4 | 70.4 | 65.65; 74.24 | 22 | 72.7 | 10.1 | 74.9 | 68.27; 77.21 | 0.27 | 0.56 | |
| waist girth (6510) [cm] | 25 | 98.8 | 7.1 | 97.6 | 95.90; 101.73 | 22 | 102.5 | 6.8 | 103.7 | 99.49; 105.51 | 0.06 | 0.61 | |
| middle hip (6512) [cm] | 25 | 110.8 | 9.0 | 107.9 | 107.12; 114.56 | 22 | 113.8 | 8.7 | 114.7 | 109.99; 117.71 | 0.19 | 0.57 | |
| waist band (6520) [cm] | 25 | 103.6 | 7.2 | 102.2 | 100.66; 106.59 | 22 | 106.0 | 7.0 | 106.4 | 102.86; 109.11 | 0.23 | 0.53 | |
| waist to buttock hight right (7011) [cm] | 25 | 21.4 | 1.6 | 20.9 | 20.71; 22.10 | 22 | 20.6 | 1.6 | 20.8 | 19.93; 21.34 | 0.19 | 0.65 | |
| waistband to buttock hight right (7016) [cm] | 25 | 15.0 | 3.5 | 16.0 | 13.54; 16.43 | 22 | 15.2 | 2.8 | 15.4 | 13.93; 16.42 | 0.90 | 0.92 | |
| waist to hip right (7021) [cm] | 25 | 36.1 | 2.0 | 36.0 | 35.26; 36.90 | 22 | 35.5 | 1.9 | 35.3 | 34.63; 36.31 | 0.31 | 0.57 | |
| high hip girth (7510) [cm] | 25 | 109.4 | 7.8 | 107.3 | 106.16; 112.60 | 22 | 112.2 | 8.2 | 112.7 | 108.61; 115.87 | 0.21 | 0.51 | |
| buttock girth (7520) [cm] | 25 | 109.4 | 9.5 | 107.2 | 105.51; 113.38 | 22 | 110.9 | 9.5 | 112.0 | 106.68; 115.13 | 0.52 | 0.73 | |
| hip girth (7525) [cm] | 25 | 110.5 | 9.8 | 108.5 | 106.42; 114.50 | 22 | 112.1 | 9.4 | 112.7 | 107.90; 116.28 | 0.48 | 0.70 | |
| belly circumference (7540) [cm] | 25 | 107.8 | 7.3 | 105.9 | 104.79; 110.82 | 22 | 110.6 | 7.8 | 111.0 | 107.10; 114.00 | 0.20 | 0.56 | |
| maximum belly circumference (7545) [cm] | 25 | 108.7 | 7.6 | 106.4 | 105.61; 111.88 | 22 | 111.6 | 8.0 | 111.9 | 108.10; 115.17 | 0.19 | 0.60 | |
| external conjugate [cm] | 26 | 29.3 | 2.5 | 28.7 | 28.25; 30.27 | 22 | 30.0 | 2.1 | 29.9 | 29.08; 30.98 | 0.09 | 0.59 | |
| distantia spinarum [cm] | 26 | 27.5 | 2.4 | 27.7 | 26.53; 28.44 | 22 | 27.3 | 2.1 | 27.0 | 26.42; 28.26 | 0.74 | 0.92 | |
| distantia intercristarum [cm] | 26 | 33.7 | 2.7 | 33.5 | 32.60; 34.75 | 22 | 34.6 | 2.8 | 34.8 | 33.32; 35.82 | 0.12 | 0.63 | |
| distantia trochanterica [cm] | 26 | 39.0 | 3.3 | 38.6 | 23.70; 30.35 | 22 | 38.9 | 3.7 | 38.4 | 27.25; 40.49 | 0.72 | 0.92 | |
| distance crista to trochanter (right) [cm] | 26 | 19.9 | 3.2 | 19.4 | 18.56; 21.16 | 22 | 18.7 | 3.7 | 17.7 | 17.08; 20.33 | 0.09 | 0.55 | |
| delivery | gestational age at delivery [weeks] | 29 | 39.4 | 0.9 | 39.5 | 39.1; 39.6 | 22 | 39.5 | 1.2 | 40.0 | 39.1; 40.1 | 0.67 | 0.88 |
| birth weight [g] | 28 | 3323.8 | 385.1 | 3270.0 | 3177.3; 3470.3 | 22 | 3397.5 | 262.6 | 3375.0 | 3281.1; 3513.9 | 0.21 | 0.54 | |
| pH value | 28 | 7.19 | 0.07 | 7.19 | 7.16; 7.22 | 22 | 7.25 | 0.10 | 7.27 | 7.21; 7.30 | 0.005 | 0.09 | |
| APGAR score 5 min | 28 | 9.2 | 0.7 | 9.0 | 8.9; 9.5 | 22 | 9.3 | 1.1 | 10.0 | 8.8; 9.8 | 0.41 | 0.62 | |
Shown are the three different methods of inner and outer pelvis measuring, divided by delivery mode. Due to the small number of cases, the medians are given in addition to the mean values. Differences between the two different delivery modes were calculated using the Mann–Whitney U-test. A p-value < 0.05 was considered as significant and are shown in bold. Due to multiple model tests, the false discovery rate-adjusted p-values according to Benjamini–Hochberg are also given. The numbers in brackets behind the body scanner values correspond to the description from the measurement value catalog (Supplementary Materials). 5′ APGAR-value, Appearance-Pulse-Grimace-Activity-Respiration value 5 min after delivery; 95% CI, 95%-confidence interval; adj. p-value, adjusted p-value according Benjamini-Hochberg; BMI, Body-Mass-Index; max, maximum; min, minimum; N, number; SD, standard deviation.